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Fabricating Dual-Atom Iron Catalysts for Efficient Oxygen Evolution Reaction: A Heteroatom Modulator Approach

Angewandte Chemie 2020年第37期132卷

作者： Wei Y.-S. Sun L. Wang M. Hong J. Zou L. Liu H. Wang Y. Zhang M. Liu Z. Li Y. Horike S. Suenaga K. Xu Q. AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL) National Institute of Advanced Industrial Science and Technology (AIST) Sakyo-ku Kyoto 606-8501 Japan Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora Shimoshidami Moriyamaku Nagoya Aichi 463-8560 Japan Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 China Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Institute for Advanced Study Kyoto University Sakyo-ku Kyoto 606-8501 Japan Research Institute of Electrochemical Energy National Institute of Advanced Industrial Science and Technology (AIST) Ikeda Osaka 563-8577 Japan

Understanding the thermal aggregation behavior of metal atoms is important for the synthesis of supported metal clusters. Here, derived from a metal–organic framework encapsulating a trinuclear FeIII2FeII complex (denoted as Fe3) within the channels, a well-defined nitrogen-doped carbon layer is fabricated as an ideal support for stabilizing the generated iron nanoclusters. Atomic replacement of FeII by other metal(II) ions (e.g., ZnII/CoII) via synthesizing isostructural trinuclear-complex precursors (Fe2Zn/Fe2Co), namely the “heteroatom modulator approach”, is inhibiting the aggregation of Fe atoms toward nanoclusters with formation of a stable iron dimer in an optimal metal–nitrogen moiety, clearly identified by direct transmission electron microscopy and X-ray absorption fine structure analysis. The supported iron dimer, serving as cooperative metal–metal site, acts as efficient oxygen evolution catalyst. Our findings offer an atomic insight to guide the future design of ultrasmall metal clusters bearing outstanding catalytic capabilities. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

关键词： metal nanoclusters metal–organic frameworks oxygen evolution reaction single atom catalyst Zn-air battery

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Preface: The Fourth Symposium on Innovative polymers for Controlled Delivery, September 23-26, 2016, Suzhou, China

Preface: The Fourth Symposium on Innovative Polymers for Con...

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作者： Zhong, Zhiyuan Feijen, Jan Biomedical Polymers Laboratory Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University China

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Preparation of optical active single-handed helical barium titanate nanotubes and characterization of dielectric properties

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Chinese Chemical Letters 2017年第5期28卷 1111-1113页

作者： Shu-Wei Lin Wen-Hu Qian Hong-Jing Huo Bao-Zong Li Yi Li Yong-Gang Yang Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and EngineeringState and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

Left and right-handed helical barium titanate nanotubes are prepared with the impregnation of Ba（OH）2 into single-handed helical titania *** angle X-ray diffraction pattern and transmission electron microscopy image indicate that they are constructed by nanoparticles with a partially crystalline *** diffuse reflertance circular dichroism spectra indicate that they exhibit optical activity which was proposed to originate from chiral defects on the inner surfaces of the *** the dielectric constant and tanδ decrease with increasing the *** 10 and 100 Hz,one dielectric constant peak at 9.6℃ and one tanδ peak at 5.0℃ are observed at -120℃ to 180℃.

关键词： Dielectrics Barium titanate Optical materials and properties Templating approach Nanoparticles

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Characterization of a Chiral Low Molecular Weight Gelator in Gel State Using Various Circular Dichroism Methods

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Chemical Research in Chinese Universities 2017年第1期33卷 119-121页

作者： SUN Huayan QIN Jiaming LI Yi LI Baozong YANG Yonggang Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and Engineering State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China

Circular dichroism（CD） is usually used to study supramolecular chirality. With the development of CD methods, diffuse transmission CD（DTCD） and diffuse reflectance CD（DRCD） have been developed. However, the relationship among CD, DTCD and DRCD has not been well-studied. A chiral low molecular weight gelator was synthesized, which can result in a transparent physical gel in deionized water. The field-emission electron microscopy images show that the gel is able to self-assemble into left-handed helical fibers. The CD and DTCD spectra are al- most identical, but they partially differ from the DRCD spectrum. Based on the TD-DFT calculated CD spectrum, the DRCD spectrum is shown to be more accurate.

关键词： Optical activity Circular dichroism Self-assembly

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PT-symmetry-protected Dirac states in strain-induced hidden MoS2 monolayer

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Physical Review B 2019年第23期100卷 235435-235435页

作者： Meiling Xu Guohui Zhan Siyu Liu Dongqin Zhang Xin Zhong Ziyang Qu Yinwei Li Aijun Du Haijun Zhang Yanchao Wang Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 China State Key Laboratory of Superhard Materials & Innovation Center for Computational Physics Methods and Software College of Physics Jilin University Changchun 130012 China National Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing 210093 China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China Department of Physics China Jiliang University Hangzhou Zhejiang 310018 People's Republic of China Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 China School of Chemistry Physics and Mechanical Engineering Queensland University of Technology Gardens Point Campus Brisbane QLD 4001 Australia

Two-dimensional (2D) materials have recently attracted significant interest in condensed-matter physics and materials science due to rich intriguing physics and potential applications. Here, by first-principles calculations, we discover a phase of transition-metal dichalcogenides (MoS2 and its family) named the 1H′ phase. We demonstrate that 1H′MoS2 monolayer has multiple topological phase transitions from a topologically trivial insulator state to a 2D type-II Dirac semimetal state, and then to a 2D ideal type-I semimetal state under a moderate tensile strain. The Dirac points are protected by the coexistence of space-inversion (P) and time-reversal (T) symmetry. Our results highlight a family of nonhoneycomb 2D Dirac semimetals with potential application in nanoelectronics.

关键词： Edge states First-principles calculations Topological materials

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Anion Effects of Terpyridine-Based Metallo-Supramolecular polymers

Anion Effects of Terpyridine-Based Metallo-Supramolecular Po...

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2018年海峡两岸暨港澳高分子液晶态与超分子有序结构学术研讨会（暨第十五届全国高分子液晶态与超分子有序结构学术论文报告会）

作者： Jiabin Wang Zhikai Li 屠迎锋苏州大学材料与化学化工学部 Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials College of Chemistry Chemical Engineering and Materials Science Soochow University Testing and Analysis Center Soochow University

The anion effects have always attracted extensive attention,1-5 since Getman first reported the diversities in the negative viscosity of a variety of saline solutions with different anions in 1908.6 Nevertheless, few ...

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Frontispiece: Fabricating Dual-Atom Iron Catalysts for Efficient Oxygen Evolution Reaction: A Heteroatom Modulator Approach

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Angewandte Chemie International Edition 2020年第37期59卷

作者： Dr. Yong-Sheng Wei Dr. Liming Sun Miao Wang Dr. Jinhua Hong Dr. Lianli Zou Hongwen Liu Dr. Yu Wang Dr. Mei Zhang Dr. Zheng Liu Prof. Yinwei Li Prof. Satoshi Horike Prof. Kazu Suenaga Prof. Qiang Xu AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL) National Institute of Advanced Industrial Science and Technology (AIST) Sakyo-ku Kyoto 606-8501 Japan Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora Shimoshidami Moriyamaku Nagoya Aichi 463-8560 Japan Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 P. R. China Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Institute for Advanced Study Kyoto University Sakyo-ku Kyoto 606-8501 Japan Research Institute of Electrochemical Energy National Institute of Advanced Industrial Science and Technology (AIST) Ikeda Osaka 563-8577 Japan

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Frontispiz: Fabricating Dual‐Atom Iron Catalysts for Efficient Oxygen Evolution Reaction: A Heteroatom Modulator Approach

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Angewandte Chemie 2020年第37期132卷

作者： Yong‐Sheng Wei Liming Sun Miao Wang Jinhua Hong Lianli Zou Hongwen Liu Yu Wang Mei Zhang Zheng Liu Yinwei Li Satoshi Horike Kazu Suenaga Qiang Xu AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL) National Institute of Advanced Industrial Science and Technology (AIST) Sakyo-ku Kyoto 606-8501 Japan Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora Shimoshidami Moriyamaku Nagoya Aichi 463-8560 Japan Laboratory of Quantum Materials Design and Application School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 P. R. China Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Institute for Advanced Study Kyoto University Sakyo-ku Kyoto 606-8501 Japan Research Institute of Electrochemical Energy National Institute of Advanced Industrial Science and Technology (AIST) Ikeda Osaka 563-8577 Japan

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Preface: The Fourth Symposium on Innovative polymers for Controlled Delivery, September 23-26, 2016, Suzhou, China

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Journal of controlled release : official journal of the Controlled Release Society 2017年 259卷 1-2页

作者： Zhiyuan Zhong Jan Feijen Biomedical Polymers Laboratory Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China. Electronic address: zyzhong@***. Biomedical Polymers Laboratory Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China. Electronic address: j.feijen@utwente.nl.

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Preparation and Characterization of Singlehanded Helical Carbonaceous Nanofibers using 1,4-Phenylene Bridged Polybissilsesquioxanes

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Journal of Wuhan University of Technology(Materials Science) 2016年第5期31卷 1149-1154页

作者：肖泽丽 GUO Yongmin 李宝宗 LI Yi Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and Engineering College of Chemistry Chemical Engineering and Materials Science Sooehow University Suzhou 215123 China

Single-handed helical carbonaceous materials attracted much attention for varieties of potential applications. Herein, single-handed helical 1, 4-phenylene bridged polybissilsesquioxane nanofibers were prepared through a supramolecular templating approach using a pair of enantiomers. After carbonization at 700 ℃ for 2.0 h and removal of silica using HF aqueous solution, single-handed helical carbonaceous nanofibers were obtained. The obtained samples were characterized using the field-emission scanning electron microscopy, transmission electron microscopy, N_2 sorptions, X-ray diffraction, Raman spectroscopy and diffuse reflectance circular dichroism（DRCD）. The Raman spectrum indicated that the carbon was amorphous. The DRCD spectra indicated that the carbonaceous nanofibers exhibited optical activity. The surface area of the left-handed helical carbonaceous nanofibers was 907 m^2/g. Such material has potential applications as chirality sensor and supercapacitor electrode.

关键词： helicity carbon optical activity nanofibers

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