检索结果-内蒙古大学图书馆

Frontispiz: Tailoring the Local Environment of Platinum in Single-Atom Pt1/CeO2Catalysts for Robust Low-Temperature CO Oxidation

引用

Angewandte Chemie 2021年第50期133卷

作者： Dr. Dong Jiang Dr. Yonggang Yao Tangyuan Li Dr. Gang Wan Dr. Xavier Isidro Pereira-Hernández Dr. Yubing Lu Dr. Jinshu Tian Dr. Konstantin Khivantsev Dr. Mark H. Engelhard Dr. Chengjun Sun Carlos E. García-Vargas Dr. Adam S. Hoffman Dr. Simon R. Bare Prof. Abhaya K. Datye Prof. Liangbing Hu Prof. Yong Wang The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99164 USA Department of Materials Science and Engineering University of Maryland College Park MD 20742 USA Current address: State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA X-ray Science Division Advanced Photon Source Argonne National Laboratory Lemont IL 60439 USA Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials University of New Mexico Albuquerque NM 87131 USA

来源：评论

学校读者我要写书评

暂无评论

Tailoring the Local Environment of Platinum in Single-Atom Pt1/CeO2Catalysts for Robust Low-Temperature CO Oxidation

引用

Angewandte Chemie 2021年第50期133卷

A single-atom Pt 1 /CeO 2 catalyst formed by atom trapping (AT, 800 °C in air) shows excellent thermal stability but is inactive for CO oxidation at low temperatures owing to over-stabilization of Pt 2+ in a highly symmetric square-planar Pt 1 O 4 coordination environment. Reductive activation to form Pt nanoparticles (NPs) results in enhanced activity; however, the NPs are easily oxidized, leading to drastic activity loss. Herein we show that tailoring the local environment of isolated Pt 2+ by thermal-shock (TS) synthesis leads to a highly active and thermally stable Pt 1 /CeO 2 catalyst. Ultrafast shockwaves (>1200 °C) in an inert atmosphere induced surface reconstruction of CeO 2 to generate Pt single atoms in an asymmetric Pt 1 O 4 configuration. Owing to this unique coordination, Pt 1 δ+ in a partially reduced state dynamically evolves during CO oxidation, resulting in exceptional low-temperature performance. CO oxidation reactivity on the Pt 1 /CeO 2 _TS catalyst was retained under oxidizing conditions.

关键词： CO oxidation metal–support interactions platinum single-atom catalysis thermal-shock synthesis

来源：评论

学校读者我要写书评

暂无评论

Back Cover: Hierarchical Pt/NiO Hollow Microspheres with Enhanced Catalytic Performance (ChemNanoMat 1/2015)

引用

ChemNanoMat 2015年第1期1卷

作者： Lifang Qi Bei Cheng Wingkei Ho Gang Liu Jiaguo Yu State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Luoshi Road 122 Wuhan 430070 P.R. China Department of Science and Environmental Studies and Centre for Education in Environmental Sustainability The Hong Kong Institute of Education Tai Po N.T. Hong Kong P.R. China National Center for Nanoscience and Technology Beijing 100190 P.R. China Department of Physics Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia

来源：评论

学校读者我要写书评

暂无评论

Blue Energy: Polymeric Nano‐Blue‐Energy Generator Based on Anion‐Selective Ionomers with 3D Pores and pH‐Driving Gating (Adv. Energy Mater. 44/2020)

引用

advanced Energy materials 2020年第44期10卷

作者： Xuanbo Zhu Jundong Zhong Junran Hao Yuzhang Wang Jiajia Zhou Jingwen Liao Yujie Dong Jinhui Pang Haibo Zhang Zizhun Wang Wei Zhang Weitao Zheng Zhenhua Jiang Yahong Zhou Lei Jiang National and Local Joint Engineering Laboratory for Synthetic Technology of High Performance Polymer College of Chemistry Jilin University Changchun Jilin 130012 P. R. China CAS Key Laboratory of Bio‐inspired Materials and Interfacial Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China Beijing Advanced Innovation Center for Biomedical Engineering Beihang University Beijing 100191 P. R. China Guangzhou Institute of Advanced Technology Chinese Academy of Sciences Guangzhou Guangdong 511458 P. R. China State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology College of Chemical Engineering Zhejiang University of Technology Hangzhou Zhejiang 310014 P. R. China State Key Laboratory of Automotive Simulation and Control School of Materials Science and Engineering Electron Microscopy Center International Center of Future Science Jilin University Changchun Jilin 130012 P. R. China

来源：评论

学校读者我要写书评

暂无评论

Lithium/Sodium-Ion Batteries: In Situ, Atomic-Resolution Observation of Lithiation and Sodiation of WS2Nanoflakes: Implications for Lithium-Ion and Sodium-Ion Batteries (Small 24/2021)

引用

Small 2021年第24期17卷

作者： Yaobin Xu Ke Wang Zhenpeng Yao Joohoon Kang David Lam Dan Yang Wei Ai Chris Wolverton Mark C. Hersam Ying Huang Wei Huang Vinayak P. Dravid Jinsong Wu Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA NUANCE Center Northwestern University Evanston IL 60208 USA Frontiers Science Center for Flexible Electronics (FSCFE) Institute of Flexible Electronics (IFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA Department of Chemistry and Computer Science University of Toronto Toronto Ontario Canada School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an 710072 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Nanostructure Research Centre Wuhan University of Technology 122 Luoshi Road Wuhan Hubei 430070 China

来源：评论

学校读者我要写书评

暂无评论

Three-dimensionally ordered macroporous materials for photo/electrocatalytic sustainable energy conversion, solar cell and energy storage

引用

EnergyChem 2022年第4期4卷

作者： Yang Ding Chunhua Wang Runtian Zheng Soumyajit Maitra Genwei Zhang Tarek Barakat Subhasis Roy Bao-Lian Su Li-Hua Chen Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles B-5000 Namur Belgium Namur Institute of Structured Matter (NISM) University of Namur 61 rue de Bruxelles B-5000 Namur Belgium Department of Chemistry KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium Department of Chemical Engineering University of Calcutta 92 APC Road Kolkata West Bengal 700009 India Department of Chemistry Fudan University 2005 Songhu Road 200438 Shanghai China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road 430070 Wuhan Hubei China Clare Hall University of Cambridge Cambridge CB2 1EW UK

Three-dimensionally ordered macroporous (3DOM) materials have aroused tremendous interest in solar light to energy conversion, sustainable and renewable products generation, and energy storage fields owing to their convenient mass transfer channels, high surface area, enhanced interaction between matter and light, plentiful reactive sites as well as tunable composition. In this review, the state-of-the-art 3DOM materials as well as their preparation methods and the relevant applications including photo/electrocatalytic sustainable energy conversion, solar cells, Li ion batteries and supercapacitor are thoroughly outlined. Meanwhile, the unique merits and mechanisms for 3DOM materials in various applications are revealed and discussed in depth. Moreover, the strategies for designing 3DOM materials and the enhanced performance for applications are correlated, which can be significantly valuable to help readers to promptly acquire the comprehensive knowledge and to inspire some new ideas in developing 3DOM materials for further improved performances. Finally, the challenges and perspectives of 3DOM materials for sustainable energy conversion/production, solar cells and energy storage fields are outlooked. We sincerely look forward to that this critical review can facilitate the fast developments in designing highly efficient 3DOM materials and the relevant applications.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Smart Robots: Self‐Propelled 3D‐Printed “Aircraft Carrier” of Light‐Powered Smart Micromachines for Large‐Volume Nitroaromatic Explosives Removal (Adv. Funct. Mater. 39/2019)

引用

advanced Functional materials 2019年第39期29卷

作者： Lei Kong Adriano Ambrosi Muhammad Zafir Mohamad Nasir Jianguo Guan Martin Pumera Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi road Wuhan 430070 P. R. China Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 Czech Republic Future Energy and Innovation Lab Central European Institute of Technology Brno University of Technology Purkyňova 656/123 Brno CZ‐616 00 Czech Republic Department of Chemical and Biomolecular Engineering Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea

来源：评论

学校读者我要写书评

暂无评论

Kinetics Controlled Perovskite Crystallization for High Performance Solar Cells

引用

Angewandte Chemie 2024年第14期136卷

作者： Jinghao Ge Ran Chen Yabin Ma Yunfan Wang Yingjie Hu Lu Zhang Fengzhu Li Xiaokang Ma Sai-Wing Tsang Jiaxue You Alex K. Y. Jen Shengzhong Frank Liu Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology International Joint Research Center of Shaanxi Province for Photoelectric Materials Science Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University No. 620 West Chang'an Avenue Xi'an 710119 China These authors contributed equally. School of Materials Science and Engineering Xi'an University of Science and Technology No. 67 Xiaozhai East Road Xi'an Shaanxi 710054 PR China Department of Materials Science and Engineering Hong Kong Institute for Clean Energy City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR China State Key Laboratory of Solidification Processing Northwestern Polytechnical University No. 127 Laodong West Road Xi'an Shaanxi 710072 PR China Dalian National Laboratory for Clean Energy iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences No.457 Zhongshan Road Shahekou District Dalian 116023 China University of the Chinese Academy of Sciences No. 80 Zhongguancun East Road Beijing 100039 China

The power conversion efficiencies (PCEs) of perovskite solar cells have recently developed rapidly compared to crystalline silicon solar cells. To have an effective way to control the crystallization of perovskite thin films is the key for achieving good device performance. However, a paradox in perovskite crystallization is from the mismatch between nucleation and Oswald ripening. Usually, the large numbers of nucleation sites tend to weak Oswald ripening. Here, we proposed a new mechanism to promote the formation of nucleation sites by reducing surface energy from 44.9 mN/m to 36.1 mN/m, to spontaneously accelerate the later Oswald ripening process by improving the grain solubility through the elastic modulus regulation. The ripening rate is increased from 2.37 Åm ⋅ s −1 to 4.61 Åm ⋅ s −1 during annealing. Finally, the solar cells derived from the optimized films showed significantly improved PCE from 23.14 % to 25.32 %. The long-term stability tests show excellent thermal stability (the optimized device without encapsulation maintaining 82 % of its initial PCE after 800 h aging at 85 °C) and an improved light stability under illumination. This work provides a new method, the elastic modulus regulation, to enhance the ripening process.

关键词： Perovskite solar cells Oswald ripening crystallization kinetics nucleation surface energy

来源：评论

学校读者我要写书评

暂无评论

Gewinnung reaktiver Fullerene aus Ruß durch exohedrale Derivatisierung

引用

Angewandte Chemie 2018年第41期130卷

作者： Michio Yamada Takeshi Akasaka Shigeru Nagase Department of Chemistry Tokyo Gakugei University Koganei Tokyo 184-8501 Japan Life Science Center of Tsukuba Advanced Research Alliance University of Tsukuba Tsukuba Ibaraki 305-8577 Japan Foundation for Advancement of International Science Tsukuba Ibaraki 305-0821 Japan State Key Laboratory of Materials Processing and Dye and Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Fukui Institute for Fundamental Chemistry Kyoto University Sakyo-ku Kyoto 606-8103 Japan

Die bemerkenswerte Allotropie von Kohlenstoff liefert zahlreiche topologisch mögliche Käfigstrukturen von molekularem Kohlenstoff. Dazu gehören auch die sogenannten endohedralen Metallofullerene, bei denen ein Metallatom im Käfig eingeschlossen ist. Stabile und lösliche leere Fullerene und endohedrale Metallofullerene in reiner Form sind in makroskopischen Mengen durch Erzeugung im Kohlenstofflichtbogen oder andere physikalische Prozesse mit anschließender Extraktion und chromatographischer Trennung verfügbar. Jedoch bleiben viele andere, nicht identifizierte Fulleren‐Spezies, die in ihrer reinen Form offenbar reaktiv und unlöslich sind, im Ruß zurück. Solche “fehlenden” Spezies müssen extrem kleine HOMO‐LUMO‐Aufspaltungen aufweisen und könnten unkonventionelle Käfigstrukturen zeigen. Jüngste Fortschritte in diesem Bereich haben gezeigt, dass sich reaktive Fullerene unter Verwendung einer exohedralen Derivatisierung gewinnen lassen, durch die die reaktiven Kohlenstoffkäfige stabilisiert werden können. Dieses Konzept bietet ein Mittel zur Produktion von makroskopischen Mengen unkonventioneller Fullerene.

关键词： Arylierung Fullerene Halogenierung Hydrierung Trifluormethylierung

来源：评论

学校读者我要写书评

暂无评论

Enhanced Charge-Carrier Dynamics and Efficient Photoelectrochemical Nitrate-to-Ammonia Conversion on Antimony Sulfide-Based Photocathodes

引用

Angewandte Chemie 2024年第48期136卷

作者： Shijie Ren Rui-Ting Gao Jidong Yu Yang Yang Xianhu Liu Limin Wu Lei Wang College of Chemistry and Chemical Engineering College of Energy Material and Chemistry Inner Mongolia University Hohhot 010021 China NanoScience Technology Center Department of Materials Science and Engineering Department of Chemistry Renewable Energy and Chemical Transformation Cluster The Stephen W. Hawking Center for Microgravity Research and Education University of Central Florida Orlando Florida 32826 United States State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial Equipment National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Wenhua Road 97–1 Zhengzhou 450002 China Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 China

The photoelectrochemical reduction of nitrate to ammonia (PEC NO 3 RR) has emerged as a promising pathway for facilitating the natural nitrogen cycle. The PEC NO 3 RR can lower the reduction potential needed for ammonia synthesis through photogenerated voltage, showcasing the significant potential for merging abundant solar energy with sustainable nitrogen fixation. However, it is influenced by the selective photocathodes with poor carrier kinetics, low catalytic selectivity, and ammonia yields. There are few reports on suitable photoelectrodes owning efficient charge transport on PEC NO 3 RR at low overpotentials. Herein, we rationally constructed the CuSn alloy co-catalysts on the antimony sulfides with a highly selective PEC ammonia and an ultra-low onset potential (0.62 V RHE ). CuSn/TiO 2 /Sb 2 S 3 photoelectrodes achieved an ammonia faradic efficiency of 97.82 % at a low applied potential of 0.4 V RHE , and an ammonia yield of 16.96 μmol h −1 cm −2 at 0 V RHE under one sun illumination. Dynamics experiments and theoretical calculations have demonstrated that CuSn/TiO 2 /Sb 2 S 3 has an enhanced charge separation and transfer efficiency, facilitating photogenerated electrons to participate in PEC NO 3 RR quickly. Meanwhile, moderate NO 2 * adsorption on this photocathode optimizes the catalytic activity and increases the NH 4 + yield. This work opens an avenue for designing sulfide-based photocathodes for the efficient route of solar-to-ammonia conversion.

关键词： Photoelectrochemical nitrate reduction reaction Sb2S3 photocathodes CuSn alloyed co-catalysts charge carrier dynamics low onset potential

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：