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Cover Feature: Coupling Photothermal Effect into Efficient Photocatalytic H2Production by Using a Plate-like Cu@Ni Core-shell Cocatalyst (ChemCatChem 10/2020)

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ChemCatChem 2020年第10期12卷 2648-2648页

作者： Xinyang Guo Dr. Fei Xue Shikai Xu Prof. Shaohua Shen Prof. Hongwen Huang Prof. Maochang Liu International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 P.R. China Suzhou Academy of Xi'an Jiaotong University Suzhou Jiangsu 215123 P.R. China College of Materials Science and Engineering Hunan University Changsha Hunan 410082 P.R. China

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Surface Adsorbed Hydroxyl: A Double-Edged Sword in Electrochemical CO2Reduction over Oxide-Derived Copper

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Angewandte Chemie 2023年第31期135卷

作者： Daixing Wei Yiqing Wang Prof. Chung-Li Dong Ta Thi Thuy Nga Yuchuan Shi Jialin Wang Xiaoli Zhao Prof. Fan Dong Prof. Shaohua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 China Department of Physics Tamkang University New Taipei City 25137 Taiwan Research Center for Environmental and Energy Catalysis Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 611731 China

Oxide-derived Cu (OD−Cu) featured with surface located sub-20 nm nanoparticles (NPs) created via surface structure reconstruction was developed for electrochemical CO 2 reduction (ECO 2 RR). With surface adsorbed hydroxyls (OH ad ) identified during ECO 2 RR, it is realized that OH ad , sterically confined and adsorbed at OD−Cu by surface located sub-20 nm NPs, should be determinative to the multi-carbon (C 2 ) product selectivity. In situ spectral investigations and theoretical calculations reveal that OH ad favors the adsorption of low-frequency *CO with weak C≡O bonds and strengthens the *CO binding at OD−Cu surface, promoting *CO dimerization and then selective C 2 production. However, excessive OH ad would inhibit selective C 2 production by occupying active sites and facilitating competitive H 2 evolution. In a flow cell, stable C 2 production with high selectivity of ∼60 % at −200 mA cm −2 could be achieved over OD−Cu, with adsorption of OH ad well steered in the fast flowing electrolyte.

关键词： CO2 Reduction Electrochemistry Oxide-Derived Copper Reaction Mechanisms Surface Adsorbed Hydroxyls

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Cover Image, Volume 4, Number 1, January 2022

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Carbon Energy 2022年第1期4卷

作者： Chengyong Shu Qiang Tan Chengwei Deng Wei Du Zhuofan Gan Yan Liu Chao Fan Hui Jin Wei Tang Xiao-dong Yang Xiaohua Yang Yuping Wu School of Chemical Engineering and Technology Xi'an Jiaotong University Xi'an China State Key Laboratory for Mechanical Behavior of Materials School of Material Science and Engineering Xi'an Jiaotong University Xi'an China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power Sources Shanghai China State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an China Xiao-dong Yang College of Materials Science and Engineering Huaqiao University 361021 Xiamen China. Xiaohua Yang Institute of Quantum and Sustainable Technology (IQST) School of Chemistry and Chemical Engineering Jiangsu University 212013 Zhenjiang China. Yuping Wu State Key Laboratory of Materials-Oriented Chemical Engineering School of Energy Science and Engineering and Institute of Advanced Materials Nanjing Tech University 211800 Nanjing China. College of Materials Science and Engineering Huaqiao University Xiamen China Institute of Quantum and Sustainable Technology (IQST) School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang China State Key Laboratory of Materials-Oriented Chemical Engineering School of Energy Science and Engineering and Institute of Advanced Materials Nanjing Tech University Nanjing China

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Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction: Mechanism and characteristics

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Bioresource Technology 2023年 376卷 128860页

作者： Ağbulut, Ümit Sirohi, Ranjna Lichtfouse, Eric Chen, Wei-Hsin Len, Christophe Show, Pau Loke Le, Anh Tuan Nguyen, Xuan Phuong Hoang, Anh Tuan Department of Mechanical Engineering Duzce University Düzce81620 Turkey School of Health Sciences and Technology University of Petroleum and Energy Studies Uttarakhand Dehradun248 007 India State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Shaanxi Xi'an710049 China Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung411 Taiwan Institute of Chemistry for Life and Health Sciences PSL University France Department of Chemical Engineering Khalifa University P.O. Box 127788 Abu Dhabi United Arab Emirates Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou University Wenzhou325035 China Department of Chemical and Environmental Engineering Faculty of Science and Engineering University of Nottingham Malaysia Jalan Broga Selangor Darul Ehsan Semenyih43500 Malaysia Department of Sustainable Engineering Saveetha School of Engineering SIMATS Chennai602105 India School of Mechanical Engineering Hanoi University of Science and Technology Hanoi Viet Nam PATET Research Group Ho Chi Minh City University of Transport Ho Chi Minh City Viet Nam Institute of Engineering HUTECH University Ho Chi Minh City Viet Nam

Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio-oil production using pyrolysis and hydrothermal liquefaction. In addition, core mechanisms of pyrolysis and hydrothermal liquefaction process for microalgae were scrutinized, showing that the presence of lipids and proteins could contribute to forming a large amount of compounds containing O and N elements in bio-oil. However, applying proper catalysts and advanced technologies for the two aforementioned approaches could improve the quality, heating value, and yield of microalgae bio-oil. In general, microalgae bio-oil produced under optimal conditions could have 46 MJ/kg heating value and 60% yield, indicating that microalgae bio-oil could become a promising alternative fuel for transportation and power generation. © 2023 Elsevier Ltd

关键词： Microalgae

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Cover Feature: Hollow Carbon Sphere-Modified Graphitic Carbon Nitride for Efficient Photocatalytic H2Production (Chem. Eur. J. 68/2021)

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Chemistry – A European Journal 2021年第68期27卷

作者： Dr. Jinghua Li Dr. Lunqiao Xiong Dr. Bing Luo Prof. Dengwei Jing Dr. Jiamei Cao Prof. Junwang Tang International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 P. R. China Department of Chemical Engineering University College London London WC1E 7JE UK School of Chemical Engineering and Technology Xi'an Jiaotong University Xi'an Shaanxi 710049 P. R. China

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Deciphering Ligand Controlled Structural Evolution of Prussian Blue Analogues and Their Electrochemical Activation during Alkaline Water Oxidation

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Angewandte Chemie 2022年第49期134卷

作者： Baghendra Singh Pandian Mannu Yu-Cheng Huang Ravi Prakash Shaohua Shen Chung-Li Dong Arindam Indra Department of Chemistry IIT(BHU) Varanasi UP-221005 India Department of Physics Tamkang University New Taipei City Taiwan School of Material Science and Technology IIT(BHU) Varanasi UP-221005 India International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi An Shi Xi'an 710049 China

Herein, we have demonstrated the control over the structure of precatalysts to tune the properties of the active catalysts and their water oxidation activity. The reaction of K 3 [Fe(CN) 6 ] and Na 2 [Fe(CN) 5 (NO)] with Co(OH) 2 @CC produced precatalysts PC-1 and PC-2, respectively, with distinct structural and electronic features. The replacement of the −CN group with strong π-acceptor −NO modulates the electronic and atomic structure of PC-2. As a result, a facile electrochemical transformation of PC-2 into active catalyst Fe−Co(OH) 2 -Co(O)OH (AC-2) has been attained only in 15 CV cycles while 600 CV cycles are required for the electrochemical activation of PC-1 into AC-1. The X-ray absorption studies reveal the contraction of the Co−O and Fe−O bond in AC-2 because of the presence of a higher amount of Co 3+ and Fe 3+ than in AC-1. The high valent Co 3+ and Fe 3+ modulates the electronic properties of AC-2 and assists in the O−O bond formation, leading to the improved water oxidation activity.

关键词： Electrochemical Reconstruction Oxygen Evolution Reaction Prussian Blue Analogue Ultrathin Nanosheets XAS Studies

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Tailoring Second Coordination Sphere for Tunable Solid–Liquid Interfacial Charge Transfer toward Enhanced Photoelectrochemical H2Production

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Angewandte Chemie 2024年第22期136卷

作者： Dr. Yangguang Hu Dr. Wu Zhou Dr. Wanbing Gong Prof. Chao Gao Prof. Shaohua Shen Prof. Tingting Kong Prof. Yujie Xiong Anhui Engineering Research Center of Carbon Neutrality The Key Laboratory of Functional Molecular Solids Ministry of Education College of Chemistry and Materials Science Anhui Normal University 241002 Wuhu Anhui China Hefei National Laboratory for Physical Sciences at the Microscale School of Chemistry and Materials Science University of Science and Technology of China 230026 Hefei Anhui China These authors equally contributed to this work International Research Centre for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University 710049 Xi'an Shaanxi China

The recombination of photogenerated charge carriers severely limits the performance of photoelectrochemical (PEC) H 2 production. Here, we demonstrate that this limitation can be overcome by optimizing the charge transfer dynamics at the solid–liquid interface via molecular catalyst design. Specifically, the surface of a p-Si photocathode is modulated using molecular catalysts with different metal atoms and organic ligands to improve H 2 production performance. Co(pda-SO 3 H) 2 is identified as an efficient and durable catalyst for H 2 production through the rational design of metal centers and first/second coordination spheres. The modulation with Co(pda-SO 3 H) 2 , which contains an electron-withdrawing −SO 3 H group in the second coordination sphere, elevates the flat-band potential of the polished p-Si photocathode and nanoporous p-Si photocathode by 81 mV and 124 mV, respectively, leading to the maximized energy band bending and the minimized interfacial carrier transport resistance. Consequently, both the two photocathodes achieve the Faradaic efficiency of more than 95 % for H 2 production, which is well maintained during 18 h and 21 h reaction, respectively. This work highlights that the band-edge engineering by molecular catalysts could be an important design consideration for semiconductor–catalyst hybrids toward PEC H 2 production.

关键词： PEC H2 production molecular catalyst coordination sphere surface modulation charge transfer

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Sa2045 MAGNETIC ANCHORING ASSISTED ENDOSCOPIC IRREVERSIBLE ELECTROPORATION FOR GASTRIC MUCOSAL ABLATION: A PRECLINICAL FEASIBILITY STUDY IN CANINE MODEL

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Gastrointestinal Endoscopy 2020年第6期91卷 AB257-AB257页

作者： Fenggang Ren Qingshan Li Xuyao Gao Yuchi Zhang Jing Zhang Zhuoqun Li Dake Chu Zheng Wu Rongqian Wu Yi Lv National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine First Affiliated Hospital of Xi’an Jiaotong University Xi'an China Department of Hepatobiliary Surgery First Affiliated Hospital of Xi’an Jiaotong University Xi'an China State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an China Department of Gastroenterology First Affiliated Hospital of Xi’an Jiaotong University Xi'an China

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Corrigendum to “Experimental study of liquid sodium flow and heat transfer characteristics along a hexagonal 7-rod bundle” [Appl. Therm. Eng. 149 (2019) 578–587.]

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Applied Thermal engineering 2019年 159卷

作者： Yandong Hou Liu Wang Mingjun Wang Kui Zhang Xisi Zhang Wenjun Hu Yingwei Wu Wenxi Tian Suizheng Qiu G.H. Su State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University 28 Xianning West Road Xi’an 710049 China Shaanxi Key Lab. of Advanced Nuclear Energy and Technology School of Nuclear Science and Technology Xi’an Jiaotong University 28 Xianning West Road Xi’an 710049 China China Institute of Atomic Energy P.O. Box 275-95 Beijing 102413 China

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Current-Density Regulating Lithium Metal Directional Deposition for Long Cycle-Life Li Metal Batteries

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Angewandte Chemie 2021年第35期133卷

作者： Heng Mao Wei Yu Zhuanyun Cai Guixian Liu Limin Liu Rui Wen Yaqiong Su Huari Kou Kai Xi Benqiang Li Hongyang Zhao Xinyu Da Hu Wu Wei Yan Shujiang Ding Xi'an Key Laboratory of Sustainable Energy Materials Chemistry School of Chemistry Xi'an Jiaotong University & Shaanxi Quantong Joint Research Institute of New Energy Vehicles Power Xi'an Jiaotong University Xi'an 710049 China Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China Key Laboratory of Molecular Nanostructure and Nanotechnology Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China Department of Mechanical Engineering University of Michigan-Dearborn Dearborn MI 48128 USA Department of Environmental Science and Engineering State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 China

Uncontrolled dendrite formation in the high energy density of lithium (Li) metal batteries (LMBs) may pose serious safety risks. While numerous studies have attempted to protect separators, these proposed methods fail to effectively inhibit upward dendrite growth that punctures through the separator. Here, we introduce a novel “orientated-growth” strategy that transfers the main depositional interface to the anode/current collector interface from the anode/separator interface. We placed a layer of cellulose/graphene carbon composite aerogel (CCA) between the current collector and the anode (LCL-bottom). This layer works as a charge organizer that induces a high current density and encourages Li to deposit at the anode/current collector interface. Both in situ and ex situ images of the electrode demonstrate that the anode part of the cell has been flipped; with the newly deposited particles facing the current collector and the smooth surface facing the separator. The electrode in half and full cells showed outstanding cyclic stability and rate capability, with the LCL-bottom/LFP full cell capable of maintaining 94 % of its initial capacity after 1000 cycles.

关键词： anode/separator interface depositional interface transfer lithium metal battery long cycles

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