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Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at s = 13 TeV

Journal of High Energy physics 2022年第3期2022卷 1-21页

作者： Sirunyan, A. M. Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Spitzbart, D. Waltenberger, W. Wulz, C.-E. Zarucki, M. Drugakov, V. Mossolov, V. Suarez Gonzalez, J. Darwish, M. R. De Wolf, E. A. Di Croce, D. Janssen, X. Lauwers, J. Lelek, A. Pieters, M. Rejeb Sfar, H. Van Haevermaet, H. Van Mechelen, P. Van Putte, S. Van Remortel, N. Blekman, F. Bols, E. S. Chhibra, S. S. D’Hondt, J. De Clercq, J. Lontkovskyi, D. Lowette, S. Marchesini, I. Moortgat, S. Moreels, L. Python, Q. Skovpen, K. Tavernier, S. Van Doninck, W. Van Mulders, P. Van Parijs, I. Beghin, D. Bilin, B. Brun, H. Clerbaux, B. De Lentdecker, G. Delannoy, H. Dorney, B. Favart, L. Grebenyuk, A. Kalsi, A. K. Luetic, J. Popov, A. Postiau, N. Starling, E. Thomas, L. Vander Velde, C. Vanlaer, P. Vannerom, D. Cornelis, T. Dobur, D. Khvastunov, I. Niedziela, M. Roskas, C. Trocino, D. Tytgat, M. Verbeke, W. Vermassen, B. Vit, M. Zaganidis, N. Bondu, O. Bruno, G. Caputo, C. David, P. Delaere, C. Delcourt, M. Giammanco, A. Lemaitre, V. Magitteri, A. Prisciandaro, J. Saggio, A. Vidal Marono, M. Vischia, P. Zobec, J. Alves, F. L. Alves, G. A. Correia Silva, G. Hensel, C. Moraes, A. Rebello Teles, P. Belchior Batista Das Chagas, E. Carvalho, W. Chinellato, J. Coelho, E. Da Costa, E. M. Da Silveira, G. G. De Jesus Damiao, D. De Oliveira Martins, C. Fonseca De Souza, S. Huertas Guativa, L. M. Malbouisson, H. Martins, J. Matos Figueiredo, D. Medina Jaime, M. Melo De Almeida, M. Mora Herrera, C. Mundim, L. Nogima, H. Prado Da Silva, W. L. Sanchez Rosas, L. J. Santoro, A. Sznajder, A. Thiel, M. Tonelli Manganote, E. J. Torres Da Silva De Araujo, F. Vilela Pereira, A. Ahuja, S. Bernardes, C. A. Calligaris, L. Fernandez Perez Tomei, T. R. Gregores, E. M. Lemos, D. S. Mercadante, P. G. Novaes, S. F. Padula, Sandra S. Aleksandrov, A. Antchev, G. Hadjiiska, R. Iaydjiev, Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Vienna University of Technology Vienna Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium IRFU CEA Université Paris-Saclay Gif-sur-Yvette France Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual de Campinas Campinas Brazil Federal University of Rio Grande do Sul Porto Alegre Brazil UFMS Nova Andradina Brazil Universidade Federal de Pelotas Pelotas Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China University of Chinese Academy of Sciences Beijing China State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of NRC ‘Kurchatov Institute’ Moscow Russia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Joint Institute for Nuclear Research Dubna Russia Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Cairo University Cairo Egypt Academy of Scientific Research and Technolog

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Angstrom-Scale Electrochemistry at Electrodes with Dimensions Commensurable and Smaller than Individual Reacting Species

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Angewandte Chemie 2023年第52期135卷

作者： Lijun Zhou Chongyang Yang Dr. Xiaohui Yang Prof. Jie Zhang Cong Wang Wei Wang Mengyan Li Xiangchao Lu Dr. Ke Li Huiping Yang Han Zhou Prof. Jiajia Chen Prof. Dongping Zhan Prof. Vladimir I. Fal'ko Prof. Jun Cheng Prof. Zhongqun Tian Prof. Andre K. Geim Prof. Yang Cao Prof. Sheng Hu State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China School of Chemistry and Chemical Engineering Hunan University of Science and Technology Xiangtan 411201 P. R. China Department of Physics and Astronomy the University of Manchester Manchester M13 9PL UK National Graphene Institute the University of Manchester Manchester M13 9PL UK Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen 361005 P. R. China Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen University Xiamen 361005 P. R. China

In nature and technologies, many chemical reactions occur at interfaces with dimensions approaching that of a single reacting species in nano- and angstrom-scale. Mechanisms governing reactions at this ultimately small spatial regime remain poorly explored because of challenges to controllably fabricate required devices and assess their performance in experiment. Here we report how efficiency of electrochemical reactions evolves for electrodes that range from just one atom in thickness to sizes comparable with and exceeding hydration diameters of reactant species. The electrodes are made by encapsulating graphene and its multilayers within insulating crystals so that only graphene edges remain exposed and partake in reactions. We find that limiting current densities characterizing electrochemical reactions exhibit a pronounced size effect if reactant's hydration diameter becomes commensurable with electrodes’ thickness. An unexpected blockade effect is further revealed from electrodes smaller than reactants, where incoming reactants are blocked by those adsorbed temporarily at the atomically narrow interfaces. The demonstrated angstrom-scale electrochemistry offers a venue for studies of interfacial behaviors at the true molecular scale.

关键词： Angstrom-Scale Electrochemistry Atomic-Scale Electrodes Graphene Size Blockade Surface Diffusion

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Search for resonances decaying to three W bosons in the hadronic final state in proton-proton collisions at s=13 TeV

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physical Review D 2022年第1期106卷 012002-012002页

作者： A. Tumasyan W. Adam J. W. Andrejkovic T. Bergauer S. Chatterjee K. Damanakis M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec P. Paulitsch F. M. Pitters J. Schieck R. Schöfbeck D. Schwarz S. Templ W. Waltenberger C.-E. Wulz V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf T. Janssen T. Kello A. Lelek H. Rejeb Sfar P. Van Mechelen S. Van Putte N. Van Remortel E. S. Bols J. D’Hondt M. Delcourt H. El Faham S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck D. Vannerom D. Beghin B. Bilin B. Clerbaux G. De Lentdecker L. Favart A. K. Kalsi K. Lee M. Mahdavikhorrami I. Makarenko L. Moureaux S. Paredes L. Pétré A. Popov N. Postiau E. Starling L. Thomas M. Vanden Bemden C. Vander Velde P. Vanlaer T. Cornelis D. Dobur J. Knolle L. Lambrecht G. Mestdach M. Niedziela C. Rendón C. Roskas A. Samalan K. Skovpen M. Tytgat B. Vermassen L. Wezenbeek A. Benecke A. Bethani G. Bruno F. Bury C. Caputo P. David C. Delaere I. S. Donertas A. Giammanco K. Jaffel Sa. Jain V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn T. T. Tran P. Vischia S. Wertz G. A. Alves C. Hensel A. Moraes P. Rebello Teles W. L. Aldá Júnior M. Alves Gallo Pereira M. Barroso Ferreira Filho H. Brandao Malbouisson W. Carvalho J. Chinellato E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao V. Dos Santos Sousa S. Fonseca De Souza C. Mora Herrera K. Mota Amarilo L. Mundim H. Nogima A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. Bernardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov B. Pavlov P. Petkov A. Petrov T. Cheng T. Javaid M. Mittal L. Yuan M. Ahmad G. Bauer C. Dozen Z. Hu J. Martins Y. Wang K. Yi E. Chapon G. M. Chen H. S. Chen M. Chen F. Iemmi A. Kapoor D. Leggat H. Liao Z.-A. Liu V. Mi Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Rice University Houston Texas USA Zhejiang University Hangzhou China Zhejiang China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fayoum University El-Fayoum Egypt National Institute of Chemical Physics and Biophy

A search for Kaluza-Klein excited vector boson resonances, WKK, decaying in cascade to three W bosons via a scalar radion R, WKK→WR→WWW, in a final state containing two or three massive jets is presented. The search is performed with s=13 TeV proton-proton collision data collected by the CMS experiment at the CERN LHC during 2016–2018, corresponding to an integrated luminosity of 138 fb−1. Two final states are simultaneously probed, one where the two W bosons produced by the R decay are reconstructed as separate, large-radius, massive jets, and one where they are merged into a single large-radius jet. The observed data are in agreement with the standard model expectations. Limits are set on the product of the WKK resonance cross section and branching fraction to three W bosons in an extended warped extra-dimensional model and are the first of their kind at the LHC.

关键词： Hypothetical particles W & Z bosons Hadron colliders

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Combinatorial entropy behaviour leads to range selective binding in ligand-receptor interactions

arXiv

引用

arXiv 2020年

作者： Liu, Meng Apriceno, Azzurra Sipin, Miguel Scarpa, Edoardo Rodriguez-Arco, Laura Poma, Alessandro Marchello, Gabriele Battaglia, Giuseppe Angioletti-Uberti, Stefano Beijing Advanced Innovation Centre for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China Institute of Physics Chinese Academy of Science Beijing China University College London Department of Chemistry London United Kingdom University College London Institute for the Physics of Living Systems London United Kingdom University College London Division of Biomaterials and Tissue Engineering Eastman Dental Institute London United Kingdom Physical Chemistry Chemical Physics Division Department of Chemistry University College London London United Kingdom UCL EPSRC JEOL Centre for Liquid Phase Electron Microscopy London United Kingdom Spain Barcelona Spain Barcelona Spain Imperial College London Department of Materials London United Kingdom

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Early Release science of the exoplanet WASP-39b with JWST NIRCam

arXiv

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arXiv 2022年

作者： Ahrer, Eva-Maria Stevenson, Kevin B. Mansfield, Megan Moran, Sarah E. Brande, Jonathan Morello, Giuseppe Murray, Catriona A. Nikolov, Nikolay K. Petit dit de la Roche, Dominique J.M. Schlawin, Everett Wheatley, Peter J. Zieba, Sebastian Batalha, Natasha E. Damiano, Mario Goyal, Jayesh M. Lendl, Monika Lothringer, Joshua D. Mukherjee, Sagnick Ohno, Kazumasa Batalha, Natalie M. Battley, Matthew P. Bean, Jacob L. Beatty, Thomas G. Benneke, Björn Berta-Thompson, Zachory K. Carter, Aarynn L. Cubillos, Patricio E. Daylan, Tansu Espinoza, Néstor Gao, Peter Gibson, Neale P. Gill, Samuel Harrington, Joseph Hu, Renyu Kreidberg, Laura Lewis, Nikole K. Line, Michael R. López-Morales, Mercedes Parmentier, Vivien Powell, Diana K. Sing, David K. Tsai, Shang-Min Wakeford, Hannah R. Welbanks, Luis Alam, Munazza K. Alderson, Lili Allen, Natalie H. Anderson, David R. Barstow, Joanna K. Bayliss, Daniel Bell, Taylor J. Blecic, Jasmina Bryant, Edward M. Burleigh, Matthew R. Carone, Ludmila Casewell, S.L. Changeat, Quentin Chubb, Katy L. Crossfield, Ian J.M. Crouzet, Nicolas Decin, Leen Désert, Jean-Michel Feinstein, Adina D. Flagg, Laura Fortney, Jonathan J. Gizis, John E. Heng, Kevin Iro, Nicolas Kempton, Eliza M.-R. Kendrew, Sarah Kirk, James Knutson, Heather A. Komacek, Thaddeus D. Lagage, Pierre-Olivier Leconte, Jérémy Lustig-Yaeger, Jacob MacDonald, Ryan J. Mancini, Luigi May, E.M. Mayne, N.J. Miguel, Yamila Mikal-Evans, Thomas Molaverdikhani, Karan Palle, Enric Piaulet, Caroline Rackham, Benjamin V. Redfield, Seth Rogers, Laura K. Roy, Pierre-Alexis Rustamkulov, Zafar Shkolnik, Evgenya L. Sotzen, Kristin S. Taylor, Jake Tremblin, P. Tucker, Gregory S. Turner, Jake D. de Val-Borro, Miguel Venot, Olivia Zhang, Xi Centre for Exoplanets and Habitability University of Warwick Coventry United Kingdom Department of Physics University of Warwick Coventry United Kingdom Johns Hopkins APL LaurelMD United States Steward Observatory University of Arizona TucsonAZ United States NHFP Sagan Fellow United States Lunar and Planetary Laboratory University of Arizona TucsonAZ United States Department of Physics & Astronomy University of Kansas LawrenceKS United States Tenerife Spain Tenerife Spain INAF- Palermo Astronomical Observatory Piazza del Parlamento Palermo Italy Department of Astrophysical and Planetary Sciences University of Colorado BoulderCO United States Space Telescope Science Institute BaltimoreMD United States Département d'Astronomie Université de Genève Sauverny Switzerland Max Planck Institute for Astronomy Heidelberg Germany Leiden Observatory University of Leiden Leiden Netherlands NASA Ames Research Center Moffett Field CA United States Jet Propulsion Laboratory PasadenaCA United States HBNI Odisha India Department of Physics Utah Valley University OremUT United States Department of Astronomy & Astrophysics University of California Santa Cruz Santa CruzCA United States Astrobiology Program UC Santa Cruz Santa CruzCA United States Department of Astronomy & Astrophysics University of Chicago ChicagoIL United States Department of Astronomy University of Wisconsin-Madison MadisonWI United States Department of Physics Institute for Research on Exoplanets Université de Montréal MontrealQC Canada Space Research Institute Austrian Academy of Sciences Graz Austria INAF Osservatorio Astrofisico di Torino Pino Torinese Italy Department of Astrophysical Sciences Princeton University PrincetonNJ United States LSSTC Catalyst Fellow Department of Physics & Astronomy Johns Hopkins University BaltimoreMD United States Earth and Planets Laboratory Carnegie Institution for Science WashingtonDC United States School of Physics Trinity Col

Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work and, if in equilibrium, revealing planet formation histories. Transmission spectroscopye.g., 1,2 provides the necessary means by constraining the abundances of oxygen- and carbon-bearing species;however, this requires broad wavelength coverage, moderate spectral resolution, and high precision that, together, are not achievable with previous observatories. Now that JWST has commenced science operations, we are able to observe exoplanets at previously uncharted wavelengths and spectral resolutions. Here we report time-series observations of the transiting exoplanet WASP-39b using JWST’s Near InfraRed Camera (NIRCam). The long-wavelength spectroscopic and short-wavelength photometric light curves span 2.0 – 4.0 µm, exhibit minimal systematics, and reveal well-defined molecular absorption features in the planet’s spectrum. Specifically, we detect gaseous H2O in the atmosphere and place an upper limit on the abundance of CH4. The otherwise prominent CO2 feature at 2.8 µm is largely masked by H2O. The best-fit chemical equilibrium models favour an atmospheric metallicity of 1–100× solar (i.e., an enrichment of elements heavier than helium relative to the Sun) and a sub-stellar carbon-to-oxygen (C/O) ratio. The inferred high metallicity and low C/O ratio may indicate significant accretion of solid materials during planet formatione.g., 3,4 or disequilibrium processes in the upper atmospheree.g., 5,6 © 2022, CC BY.

关键词： Spectral resolution

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X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions

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Light(science & Applications) 2018年第1期7卷 222-232页

作者： Yan-Min Yang Zhi-Yong Li Jun-Ying Zhang Yue Lu Shao-Qiang Guo Qing Zhao Xin Wang Zi-Jun Yong Hong Li Ju-Ping Ma Yoshihiro Kuroiwa Chikako Moriyoshi Li-Li Hu Li-Yan Zhang Li-Rong Zheng Hong-Tao Sun College of Physics Science and Technology Hebei University071002 BaodingChina College of Chemistry Chemical Engineering and Materials ScienceSoochow University215123 JiangsuChina Department of Physics Beihang University100191 BeijingChina Department of Physical Science Hiroshima UniversityHigashihiroshimaHiroshima 739-8526Japan Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences201800 ShanghaiChina Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina

Phosphors emitting visible and near-infrared persistent luminescence have been explored extensively owing to their unusual properties and commercial interest in their applications such as glow-in-the-dark paints,optical information storage,and in vivo ***,no persistent phosphor that features emissions in the ultraviolet C range(200–280 nm)has been known to exist so ***,we demonstrate a strategy for creating a new generation of persistent phosphor that exhibits strong ultraviolet C emission with an initial power density over 10 milliwatts per square meter and an afterglow of more than 2 *** characterizations coupled with first-principles calculations have revealed that structural defects associated with oxygen introduction-induced anion vacancies in fluoride elpasolite can function as electron traps,which capture and store a large number of electrons triggered by Xray ***,we show that the ultraviolet C afterglow intensity of the yielded phosphor is sufficiently strong for *** discovery of this ultraviolet C afterglow opens up new avenues for research on persistent phosphors,and it offers new perspectives on their applications in terms of sterilization,disinfection,drug release,cancer treatment,anti-counterfeiting,and beyond.

关键词： ultraviolet fluoride visible

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Composition-Tunable Antiperovskite CuxIn1−xNNi3 as Superior Electrocatalysts for the Hydrogen Evolution Reaction

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Angewandte Chemie 2020年第40期132卷

作者： Zhang J. Zhang L. Du L. Xin H.L. Goodenough J.B. Cui Z. The Key Laboratory of Fuel Cell Technology of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China Department of Physics and Astronomy University of California Irvine CA 92697 United States Materials Science and Engineering Program & Texas Materials Institute The University of Texas at Austin Austin TX 78712 United States

A group of newly reported antiperovskite nitrides CuxIn1−xNNi3 (0≤x≤1) with tunable composition are employed as electrocatalysts for the hydrogen evolution reaction (HER). Cu0.4In0.6NNi3 shows the highest intrinsic performance among all developed catalysts with an overpotential of merely 42 mV at 10 mA cmgeo−2. Stability tests at a high current density of 100 mA cmgeo−2 show its super-stable performance with only 7 mV increase in overpotential after more than 60 hours of measurement, surpassing commercial Pt/C (increase of 170 mV). By partial substitution, the derived antiperovskite nitride achieves a smaller kinetic barrier of water dissociation compared to the unsubstituted InNNi3 and CuNNi3, revealed by first-principle calculations. It is found that the partially substituted CuxIn1−xNNi3 possesses a thermal neutral and desirable Gibbs free energy of hydrogen for HER, ascribed to the tailoring of the energy of d-band center arose by the A-site (A=Cu or In) substitution and a resulting optimization of adsorbate interactions. © 2020 Wiley-VCH GmbH

关键词： antiperovskite nitride CuxIn1−xNi3 electrocatalyst hydrogen evolution water dissociation

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Thermalization of finite many-body systems by a collision model

arXiv

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arXiv 2019年

作者： Arısoy, Onat Campbell, Steve Müstecaplıoglu, Özgür E. Department of Physics Koç University Istanbul Sarıyer34450 Turkey Institute for Physical Science and Technology University of Maryland College ParkMD20742 United States Chemical Physics Program University of Maryland College ParkMD20742 United States School of Physics University College Dublin Belfield Dublin 4 Ireland

We construct a collision model description of the thermalization of a finite many-body system by using careful derivation of the corresponding Lindblad-type master equation in the weak coupling regime. Using the example of two level target system, we show that collision model thermalization is crucially dependent on the various relevant system and bath timescales and on ensuring that the environment is composed of ancillae which are resonant with the system transition frequencies. Using this we extend our analysis to show that our collision model can lead to thermalisation for certain classes of many-body systems. We establish that for classically correlated systems our approach is effective, while we also highlight its shortcomings, in particular with regards to reaching entangled thermal states. Copyright © 2019, The Authors. All rights reserved.

关键词： Quantum entanglement

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GLOBAL OCEANS

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BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 2023年第9期104卷 S146-S206页

作者： Johnson, G. C. Lumpkin, R. Met Office Hadley Center Exeter United Kingdom NOAA/OAR Atlantic Oceanographic and Meteorological Laboratory Miami Florida Cooperative Institute for Marine and Atmospheric Studies University of Miami Miami Florida NOAA/NESDIS National Centers for Environmental Information Silver Spring Maryland Cooperative Institute for Climate Ocean and Ecosystem Studies University of Washington Seattle Washington NOAA/OAR Pacific Marine Environmental Laboratory Seattle Washington NASA Goddard Space Flight Center Greenbelt Maryland Morgan State University Baltimore Maryland College of Marine Science University of South Florida St. Petersburg Florida Woods Hole Oceanographic Institution Woods Hole Massachusetts International Center for Climate and Environment Sciences Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Cooperative Institute for Marine and Atmospheric Studies University of Miami Rosenstiel School of Marine Atmospheric and Earth Science University of Miami Miami Florida Science Systems and Applications Inc. Lanham Maryland Science Systems and Applications Inc. Hampton Virginia Scripps Institution of Oceanography University of California San Diego La Jolla California Center for Coastal Physical Oceanography Old Dominion University Norfolk Virginia Australian Antarctic Program Partnership Institute for Marine and Antarctic Studies Australian Research Council Centre of Excellence for Climate Extremes University of Tasmania Hobart Tasmania NOAA/NWS National Centers for Environmental Prediction Climate Prediction Center College Park Maryland NOAA/NESDIS National Centers for Environmental Information Asheville North Carolina Department of Atmosphere Ocean and Earth System Modeling Research Meteorological Research Institute Japan Meteorological Agency Tsukuba Japan National Oceanography Centre Liverpool United Kingdom Flanders Marine Institute InnovOcean Campus Ostend Belgium NOAA/NWS NCWCP Laboratory for Satellite Altimetry College Par

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Integration of Bimetallic Electronic Synergy with Oxide Site Isolation Improves the Selective Hydrogenation of Acetylene

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Angewandte Chemie 2021年第35期133卷

作者： Fang Liu Yujia Xia Wenlong Xu Dr. Lina Cao Qiaoqiao Guan Dr. Qingqing Gu Prof. Bing Yang Prof. Junling Lu Department of Chemical Physics Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes University of Science and Technology of China Jinzhai Road 96 Hefei 230026 P. R. China CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Zhongshan Road 457 Dalian 116023 P. R. China

Semi-hydrogenation of acetylene to ethylene is an important process to purify ethylene streams in industry. However, among current approaches reported in the literature, high ethylene selectivity has been generally achieved at the expense of activity. Herein, we show that a Ga 2 O 3 coating of Ag@Pd core–shell bimetallic nanoparticle catalysts, allows improvement of the ethylene selectivity to a much greater extent than the coating of monometallic Pd nanoparticles, while preserving a remarkable intrinsic activity, approximately 50 times higher than the benchmark catalyst of Pd 1 Ag single-atom alloys (SAAs). Importantly, the resulting catalyst also shows excellent long-term stability, by suppressing coke formation efficiently. Spectroscopic characterization reveals that weakened ethylene adsorption by bimetallic electronic synergy, and oxide site isolation are both essential for the high ethylene selectivity and high-coking resistance. H-D exchange measurements further show that the Ga 2 O 3 -coated Ag@Pd catalyst possesses a much higher activity of H 2 activation than that of Pd 1 Ag SAAs, thus boosting the hydrogenation activity at the same time.

关键词： atomic layer deposition bimetallic catalysts hydrogenation oxide overcoating selectivity

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