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Inside Cover: Diels–Alder Conversion of Acrylic Acid and 2,5-Dimethylfuran topara-Xylene Over Heterogeneous Bi-BTC Metal-Organic Framework Catalysts Under Mild Conditions (Angew. Chem. Int. Ed. 2/2021)

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Angewandte Chemie International Edition 2020年第2期60卷

作者： Jyun-Yi Yeh Season S. Chen Shih-Cheng Li Celine H. Chen Dr. Tetsuya Shishido Dr. Daniel C. W. Tsang Dr. Yusuke Yamauchi Yi-Pei Li Prof. Kevin C.-W. Wu International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan Taiwan International Graduate Program (TIGP) Academia Sinica No. 128 Sec. 2 Academia Road Taipei 11529 Taiwan Department of Chemical Engineering National (Taiwan) University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan School of Engineering Brown University Providence RI 02912 USA Department of Applied Chemistry for Environment Tokyo Metropolitan University 1-1 Minami-osawa Hachioji Tokyo 192-0397 Japan Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China JST-ERATO Yamauchi Materials Space-Tectonics Project Kagami Memorial Research Institute for Materials Science and Technology Waseda University 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan Australian Institute for Bioengineering and Nanotechnology (AIBN) School of Chemical Engieering The University of Queensland Brisbane QLD 4072 Australia Center of Atomic Initiative for New Materials National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan

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Diels–Alder Conversion of Acrylic Acid and 2,5-Dimethylfuran topara-Xylene Over Heterogeneous Bi-BTC Metal-Organic Framework Catalysts Under Mild Conditions

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Angewandte Chemie 2020年第2期133卷

The heterogeneous metal-organic framework Bi-BTC successfully catalyzed the synthesis of para -xylene from bio-based 2,5-dimethylfuran and acrylic acid in a promising yield (92 %), under relatively mild conditions (160 °C, 10 bar), and with a low reaction-energy barrier (47.3 kJ mol −1 ). The proposed reaction strategy also demonstrates a remarkable versatility for furan derivatives such as furan and 2-methylfuran.

关键词： 2,5-dimethylfuran acrylic acid Bi-BTC metal-organic frameworks para-xylene

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Incorporation of lead containing TV tube glass waste in aluminous porcelain

Incorporation of lead containing TV tube glass waste in alum...

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作者： Santos, Talita Faria Paes, Herval Ramos Holanda, José Nilson França Post-Graduate Program in Materials Science and Engineering - PPGECM Universidade Estadual do Norte Fluminense - UENF Campos dos Goytacazes RJ28013-602 Brazil Laboratory of Advanced Materials - LAMAV Universidade Estadual do Norte Fluminense - UENF Campos dos Goytacazes RJ28013-602 Brazil

The aim of this work was to study the incorporation of lead containing TV tube glass waste as a method to provide alternative raw material for aluminous electrical porcelain. For this purpose, aluminous porcelain formulations containing up to 30 wt.% of TV tube glass waste as a replacement for traditional flux material (sodium feldspar) were pressed and fired in air at 1300 ºC using a fast-firing cycle (11 Ω.cm have high potential to work as electrical insulator material. This use of lead containing TV tube glass waste can contribute greatly to reducing the environmental impacts related to it, and also save the sources of non-renewable raw materials used in the electrical porcelain sector. © 2017 Universidade Federal de Sao Carlos. All rights reserved.

关键词： Glass

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Dark-Exciton-Mediated Fano Resonance from a Single Gold Nanostructure Deposited on Monolayer WS2 at Room Temperature

arXiv

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arXiv 2018年

作者： Wang, Mingsong Wu, Zilong Krasnok, Alex Zhang, Tianyi Liu, Mingzu Liu, He Scarabelli, Leonardo Fang, Jie Liz-Marzán, Luis M. Terrones, Mauricio Alù, Andrea Zheng, Yuebing Department of Mechanical Engineering Materials Science and Engineering Program Texas Materials Institute University of Texas at Austin AustinTX78712 United States Photonics Initiative Advanced Science Research Center Physics Program Graduate Center Department of Electrical Engineering City College of The City University of New York NY10031 United States Department of Materials Science and Engineering Department of Physics Center for 2-Dimensional and Layered Materials Department of Chemistry Pennsylvania State University Pennsylvania State University University ParkPA16802 United States Department of Chemistry and Biochemistry California NanoSystems Institute University of California Los Angeles Los AngelesCA90095 United States Bionanoplasmonics Laboratory CIC biomaGUNE Paseo de Miramón 182 Donostia-San Sebastián20014 Spain Ikerbasque Basque Foundation for Science Bilbao48013 Spain Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine CIBER-BBN Donostia- San Sebastián20014 Spain

Strong spatial confinement and highly reduced dielectric screening provide monolayer transition metal dichalcogenides (TMDCs) with strong many-body effects, thereby possessing optically forbidden excitonic states (i.e., dark excitons) at room temperature. Herein, we explore the interaction of surface plasmons with dark excitons in hybrid systems consisting of stacked gold nanotriangles (AuNTs) and monolayer WS2. We observe a narrow Fano resonance when the hybrid system is surrounded by water, and we attribute the narrowing of the spectral Fano linewidth to the plasmon-enhanced decay of dark K-K excitons. Our results reveal that dark excitons in monolayer WS2 can strongly modify Fano resonances in hybrid plasmon-exciton systems and can be harnessed for novel optical sensors and active nanophotonic devices. Copyright © 2018, The Authors. All rights reserved.

关键词： Gold nanoparticles

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Perovskite Solar Cells: Enhancing Efficiency and Stability of Photovoltaic Cells by Using Perovskite/Zr-MOF Heterojunction Including Bilayer and Hybrid Structures (Adv. Sci. 5/2019)

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Advanced science 2019年第5期6卷 1970030-1970030页

作者： Chia-Chen Lee Chih-I Chen Yu-Te Liao Kevin C.-W. Wu Chu-Chen Chueh Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei 10617 Taiwan Center of Atomic Initiative for New Materials (AI-MAT) National Taiwan University Taipei 10617 Taiwan International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University Taipei 10617 Taiwan

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LZS/Al2O3 glass-ceramic composites sintered by fast firing

LZS/Al2O3 glass-ceramic composites sintered by fast firing

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作者： Arcaro, Sabrina Nieto, Maria Isabel Moreno, Rodrigo Salvador, Maria Dolores Borrell, Amparo Moreno, Berta Chinarro, Eva De Oliveira, Antonio Pedro Novaes Laboratory of Glass-Ceramic Materials VITROCER Federal University of Santa Catarina - UFSC Florianópolis SC88040-900 Brazil Graduate Program in Materials Science and Engineering - PGMAT Federal University of Santa Catarina - UFSC Florianópolis SC88040-900 Brazil Institute of Ceramics and Glass - CSIC Madrid Spain Institute of Materials Technology Polytechnic University of Valencia Spain

In this work, nanometric Al2O3 (1-5 vol.%) particles (13 nm, 100 m2/g) were added to a 19.58Li2O•11.10ZrO2•69.32SiO2 (mol%) (3.5 µm, 2.5 m2/g) parent glass-ceramic matrix to prepare composites with the purpose of studying the influence of Al2O3 on their structure, microstructure, mechanical, thermal and electrical properties when sintered by fast firing. The parent glass-ceramic was prepared by melting and fast cooling (in water) to obtain a glass frit. The resulting glass frit was milled according to a two-step procedure consisting on a dry milling stage followed by a long wet milling step down. Each composition was wet homogenized and then dried at 110 ºC for 48 h for disaggregation. The obtained powders were uniaxially pressed (100 MPa) and compacts sintered by fast firing (175 ºC/min) between 800 and 900 ºC for 30 min. The composites, with relative densities ranging from 89% to 93%, showed zircon and β-spodumene as main crystalline phases. The hardness and Young's modulus varied from 4.5 to 6.5 GPa, and from 65 to 102 GPa, respectively. The formation of β-spodumene in the obtained composites leads to reduce the CTEs, whose values ranged from 13 to 7 x 10-6 ºC-1 © 2017 Universidade Federal de Sao Carlos. All rights reserved.

关键词： Sintering

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Front Cover: Bioderived Molecular Electrodes for Next-Generation Energy-Storage materials (ChemSusChem 9/2020)

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ChemSusChem 2020年第9期13卷 2101-2101页

作者： Mikhail Miroshnikov Kiran Mahankali Dr. Naresh Kumar Thangavel Dr. Sitakanta Satapathy Dr. Leela Mohana Reddy Arava Dr. Pulickel M. Ajayan Dr. George John Department of Chemistry and Biochemistry Center for Discovery and Innovation The City College of New York 85 St. Nicholas Terrace New York NY 10031 USA The PhD Program in Chemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA Department of Mechanical Engineering Wayne State University 5050 Anthony Wayne Dr. Detroit MI 48202 USA Department of Materials Science and NanoEngineering Rice University 6100 Main Street Houston TX 77005 USA

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Intrinsic Raman signatures of pristine hybrid perovskite CH3NH3PbI3 and its multiple stages of structure transformation 44

Intrinsic Raman signatures of pristine hybrid perovskite CH3...

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44th IEEE Photovoltaic Specialist Conference, PVSC 2017

作者： Chen, Qiong Liu, Henan Kim, Hui-Seon Liu, Yucheng Yang, Mengjin Yue, Naili Ren, Gang Zhu, Kai Liu, Shengzhong Frank Park, Nam-Gyu Zhang, Yong Department of Electrical and Computer Engineering Korea Republic of Optical Science and Engineering Graduate Program University of North Carolina at Charlotte CharlotteNC28223 United States School of Chemical Engineering and Department of Energy Science Sungkyunkwan University Suwon440-746 Korea Republic of Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of EducationInstitute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an710062 China Chemical and Materials Science Center National Renewable Energy Laboratory GoldenCO80401 United States Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyCA94720 United States

ISBN: (纸本)9781509056057

By performing spatially resolved Raman and photoluminescence spectroscopy with different illumination conditions, we have achieved a unified understanding towards the spectroscopy signatures of the organic-inorganic hybrid perovskite, transforming from the pristine state (CH3NH3PbI3 or MAPbI3) to fully degraded state (i.e., PbI2), for samples with varying crystalline domain size from mesoscopic scale to macroscopic size, synthesized by three different techniques. © 2017 IEEE.

关键词： Perovskite

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Demonstration of higher-order topological States in photonic kagome lattice with next-nearest-neighbour coupling

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AIP Conference Proceedings 2020年第1期2300卷

作者： D. Zhirihin M. Li M. Gorlach X. Ni D. Filonov A. Slobozhanyuk A. Alu A. B. Khanikaev 1Department of Electrical Engineering Grove School of Engineering 160 Covent Avenue City College of New York 10031 NY USA 2Department of Physics and Engineering ITMO University 49 Kronverksky Pr. 197101 St. Petersburg Russia 3Physics Program Graduate Center of the City University of New York 365 5th Avenue 10016 New York NY USA 4Center for Photonics and 2D Materials Moscow Institute of Physics and Technology Dolgoprudny 141700 Russia 5Photonics Initiative Advanced Science Research Center City University of New York 10031 New York NY USA

In this paper, we investigate topological states in a two-dimensional distorted Kagome lattice with next- nearest-neighbour (NNN) coupling. We show that introducing NNN coupling leads to the emergence of a new type of higher-order corner states in a non-trivial topological phase. Using near-field scanning technique, we verify our theoretical predictions in the microwave frequency range and demonstrate field profiles for both conventional and new type of corner states. The experimental results are in perfect agreement with numerical simulations of finite structure.

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Modification of Clay Crystal Structure with Different Alcohols

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Natural Resources 2017年第11期8卷 709-715页

作者： M. Ozgur Seydibeyoglu Sibel Demiroglu Metehan Atagur Selmin Yanar Ocaktan Department of Materials Science and Engineering Izmir Katip Celebi University Izmir Turkey Nanotechnology Graduate Program Izmir Katip Celebi University Izmir Turkey DYO Paint Company Izmir Turkey

Clays attract attention as a nano size material to reinforce the polymers and resins. In this study, montmorillonite clay was modified using industrial solvents that are used in the paint industry. It was shown that the water contact angle could be varied from 20? to 140? which is a real influence for the clay mineral. X-ray diffraction analysis shows that planar basal space could be altered significantly from 12.57 to 15.40 nm showing 22.5% increase in the interlayer spacing and that is really critical for many polymers and coating applications. This study will highlight many new clay nanocomposites and the formation of various clay nanocomposites.

关键词： Clay Solvent X-Ray Diffraction Water Contact Angle

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