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Meng Zhao Hong‐Jie Peng Bo‐Quan Li Xiao Chen Jin Xie Xinyan Liu Qiang Zhang Jia‐Qi Huang 《Angewandte Chemie (International ed. in English)》2020,59(23):9011-9017
In situ evolution of electrocatalysts is of paramount importance in defining catalytic reactions. Catalysts for aprotic electrochemistry such as lithium–sulfur (Li‐S) batteries are the cornerstone to enhance intrinsically sluggish reaction kinetics but the true active phases are often controversial. Herein, we reveal the electrochemical phase evolution of metal‐based pre‐catalysts (Co4N) in working Li‐S batteries that renders highly active electrocatalysts (CoSx). Electrochemical cycling induces the transformation from single‐crystalline Co4N to polycrystalline CoSx that are rich in active sites. This transformation propels all‐phase polysulfide‐involving reactions. Consequently, Co4N enables stable operation of high‐rate (10 C, 16.7 mA cm?2) and electrolyte‐starved (4.7 μL mgS?1) Li‐S batteries. The general concept of electrochemically induced sulfurization is verified by thermodynamic energetics for most of low‐valence metal compounds. 相似文献
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Meng Zhao Dr. Hong-Jie Peng Bo-Quan Li Dr. Xiao Chen Jin Xie Dr. Xinyan Liu Prof. Qiang Zhang Prof. Jia-Qi Huang 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(23):9096-9102
In situ evolution of electrocatalysts is of paramount importance in defining catalytic reactions. Catalysts for aprotic electrochemistry such as lithium–sulfur (Li-S) batteries are the cornerstone to enhance intrinsically sluggish reaction kinetics but the true active phases are often controversial. Herein, we reveal the electrochemical phase evolution of metal-based pre-catalysts (Co4N) in working Li-S batteries that renders highly active electrocatalysts (CoSx). Electrochemical cycling induces the transformation from single-crystalline Co4N to polycrystalline CoSx that are rich in active sites. This transformation propels all-phase polysulfide-involving reactions. Consequently, Co4N enables stable operation of high-rate (10 C, 16.7 mA cm−2) and electrolyte-starved (4.7 μL mgS−1) Li-S batteries. The general concept of electrochemically induced sulfurization is verified by thermodynamic energetics for most of low-valence metal compounds. 相似文献
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Cover Picture: Building Organic/Inorganic Hybrid Interphases for Fast Interfacial Transport in Rechargeable Metal Batteries (Angew. Chem. Int. Ed. 4/2018) 下载免费PDF全文
Qing Zhao Zhengyuan Tu Shuya Wei Kaihang Zhang Snehashis Choudhury Xiaotun Liu Prof. Lynden A. Archer 《Angewandte Chemie (International ed. in English)》2018,57(4):853-853
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Inside Back Cover: Self‐Supporting Metal–Organic Layers as Single‐Site Solid Catalysts (Angew. Chem. Int. Ed. 16/2016) 下载免费PDF全文
Lingyun Cao Zekai Lin Fei Peng Weiwei Wang Ruiyun Huang Prof. Cheng Wang Prof. Jiawei Yan Jie Liang Prof. Zhiming Zhang Teng Zhang Prof. Lasheng Long Prof. Junliang Sun Prof. Wenbin Lin 《Angewandte Chemie (International ed. in English)》2016,55(16):5097-5097
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Back Cover: Size‐Dependent Phase Transformation of Catalytically Active Nanoparticles Captured In Situ (Angew. Chem. Int. Ed. 5/2014) 下载免费PDF全文
Dr. Nico Fischer Brett Clapham Dr. Theresa Feltes Prof. Dr. Eric van Steen Prof. Dr. Michael Claeys 《Angewandte Chemie (International ed. in English)》2014,53(5):1450-1450
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Inside Cover: Electronic Metal–Support Interactions in Single‐Atom Catalysts (Angew. Chem. Int. Ed. 13/2014) 下载免费PDF全文
Pingping Hu Zhiwei Huang Dr. Zakariae Amghouz Prof. Michiel Makkee Fei Xu Prof. Freek Kapteijn Dr. Alla Dikhtiarenko Yaxin Chen Dr. Xiao Gu Prof. Xingfu Tang 《Angewandte Chemie (International ed. in English)》2014,53(13):3284-3284
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Inside Back Cover: Programmable Polymer‐Based Supramolecular Temperature Sensor with a Memory Function (Angew. Chem. Int. Ed. 20/2014) 下载免费PDF全文
Léna Sambe Victor R. de La Rosa Khaled Belal Dr. François Stoffelbach Dr. Joel Lyskawa Dr. François Delattre Marc Bria Prof. Graeme Cooke Prof. Richard Hoogenboom Prof. Patrice Woisel 《Angewandte Chemie (International ed. in English)》2014,53(20):5215-5215
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