Metallic Co4N Porous Nanowire Arrays Activated by Surface Oxidation as Electrocatalysts for the Oxygen Evolution Reaction

被引:617
作者
Chen, Pengzuo [1 ,2 ]
Xu, Kun [1 ,2 ]
Fang, Zhiwei [1 ,2 ]
Tong, Yun [1 ,2 ]
Wu, Junchi [1 ,2 ]
Lu, Xiuli [1 ,2 ]
Peng, Xu [1 ,2 ]
Ding, Hui [1 ,2 ]
Wu, Changzheng [1 ,2 ]
Xie, Yi [1 ,2 ]
机构
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, IChEM Collaborat Innovat Ctr Chem Energy Mat, Hefei Sci Ctr CAS, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
3D electrode configuration; cobalt nitride; electrocatalysts; oxygen evolution reaction; porous nanowire arrays; WATER; NITRIDE; PEROVSKITE; NANOSHEETS; CATALYST; HYDROGEN; STORAGE; CLOTH; FILMS;
D O I
10.1002/anie.201506480
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Designing highly efficient electrocatalysts for oxygen evolution reaction (OER) plays a key role in the development of various renewable energy storage and conversion devices. In this work, we developed metallic Co4N porous nanowire arrays directly grown on flexible substrates as highly active OER electrocatalysts for the first time. Benefiting from the collaborative advantages of metallic character, 1D porous nanowire arrays, and unique 3D electrode configuration, surface oxidation activated Co4N porous nanowire arrays/carbon cloth achieved an extremely small overpotential of 257 mV at a current density of 10 mA cm(-2), and a low Tafel slope of 44 mV dec(-1) in an alkaline medium, which is the best OER performance among reported Co-based electrocatalysts to date. Moreover, in-depth mechanistic investigations demonstrate the active phases are the metallic Co4N core inside with a thin cobalt oxides/hydroxides shell during the OER process. Our finding introduces a new concept to explore the design of high-efficiency OER electrocatalysts.
引用
收藏
页码:14710 / 14714
页数:5
相关论文
共 30 条
[1]  
[Anonymous], 2015, Angew. Chem, DOI DOI 10.1002/ANGE.201408998
[2]  
[Anonymous], 2015, ANGEW CHEM INT EDN, DOI DOI 10.1002/ANGE.201410792
[3]  
[Anonymous], 2015, ANGEW CHEM INT EDIT
[4]   Electrochemical sensing of glucose by carbon cloth-supported Co3O4/PbO2 core-shell nanorod arrays [J].
Chen, Ting ;
Li, Xiaowei ;
Qiu, Cuicui ;
Zhu, Wencai ;
Ma, Houyi ;
Chen, Shenhao ;
Meng, Oliver .
BIOSENSORS & BIOELECTRONICS, 2014, 53 :200-206
[5]   Opportunities and challenges for a sustainable energy future [J].
Chu, Steven ;
Majumdar, Arun .
NATURE, 2012, 488 (7411) :294-303
[6]   Tantalum Cobalt Nitride Photocatalysts for Water Oxidation under Visible Light [J].
Cong, Yanqing ;
Park, Hyun S. ;
Dang, Hoang X. ;
Fan, Fu-Ren F. ;
Bard, Allen J. ;
Mullins, C. Buddie .
CHEMISTRY OF MATERIALS, 2012, 24 (03) :579-586
[7]   Solar Energy Supply and Storage for the Legacy and Non legacy Worlds [J].
Cook, Timothy R. ;
Dogutan, Dilek K. ;
Reece, Steven Y. ;
Surendranath, Yogesh ;
Teets, Thomas S. ;
Nocera, Daniel G. .
CHEMICAL REVIEWS, 2010, 110 (11) :6474-6502
[8]   Room-Temperature Ferromagnetism in Antiferromagnetic Cobalt Oxide Nanooctahedra [J].
Fontaina-Troitino, Nerio ;
Liebana-Vinas, Sara ;
Rodriguez-Gonzalez, Benito ;
Li, Zi-An ;
Spasova, Marina ;
Farle, Michael ;
Salgueirino, Veronica .
NANO LETTERS, 2014, 14 (02) :640-647
[9]   Electrodeposited Cobalt-Phosphorous-Derived Films as Competent Bifunctional Catalysts for Overall Water Splitting [J].
Jiang, Nan ;
You, Bo ;
Sheng, Meili ;
Sun, Yujie .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (21) :6251-6254
[10]   A Bifunctional Perovskite Catalyst for Oxygen Reduction and Evolution [J].
Jung, Jae-Il ;
Jeong, Hu Young ;
Lee, Jang-Soo ;
Kim, Min Gyu ;
Cho, Jaephil .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (18) :4582-4586