Channel-Rich RuCu Nanosheets for pH-Universal Overall Water Splitting Electrocatalysis

被引：383
作者：
Yao, Qing [1 ]
Huang, Bolong [2 ]
Zhang, Nan [1 ]
Sun, Mingzi [1 ,2 ]
Shao, Qi [1 ]
Huang, Xiaoqing [1 ]
机构：
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Renai Rd 199, Suzhou 215123, Peoples R China
[2] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hung Hom, Kowloon, Hong Kong, Peoples R China
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 39期
基金：
中国国家自然科学基金;
关键词：
channels; electrocatalysis; nanosheets; overall water splitting; ruthenium; HYDROGEN-EVOLUTION; OXYGEN; HETEROSTRUCTURES; CATALYST; CARBON; RUO2; PD;
D O I：
10.1002/anie.201908092
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Channel-rich RuCu snowflake-like nanosheets (NSs) composed of crystallized Ru and amorphous Cu were used as efficient electrocatalysts for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and overall water splitting in pH-universal electrolytes. The optimized RuCu NSs/C-350 degrees C and RuCu NSs/C-250 degrees C show attractive activities of OER and HER with low overpotentials and small Tafel slopes, respectively. When applied to overall water splitting, the optimized RuCu NSs/C can reach 10 mA cm(-2) at cell voltages of only 1.49, 1.55, 1.49 and 1.50 V in 1 m KOH, 0.1 m KOH, 0.5 m H2SO4 and 0.05 m H2SO4, respectively, much lower than those of commercial Ir/C parallel to Pt/C. The optimized electrolyzer exhibits superior durability with small potential change after up to 45 h in 1 m KOH, showing a class of efficient functional electrocatalysts for overall water splitting.
引用
收藏
页码：13983 / 13988
页数：6
相关论文
共 38 条
  • [1] Iridium As Catalyst and Cocatalyst for Oxygen Evolution/Reduction in Acidic Polymer Electrolyte Membrane Electrolyzers and Fuel Cells
    Antolini, Ermete
    [J]. ACS CATALYSIS, 2014, 4 (05): : 1426 - 1440
  • [2] Highly selective hydrogenation of arenes using nanostructured ruthenium catalysts modified with a carbon-nitrogen matrix
    Cui, Xinjiang
    Surkus, Annette-Enrica
    Junge, Kathrin
    Topf, Christoph
    Radnik, Joerg
    Kreyenschulte, Carsten
    Beller, Matthias
    [J]. NATURE COMMUNICATIONS, 2016, 7
  • [3] Atomically isolated nickel species anchored on graphitized carbon for efficient hydrogen evolution electrocatalysis
    Fan, Lili
    Liu, Peng Fei
    Yan, Xuecheng
    Gu, Lin
    Yang, Zhen Zhong
    Yang, Hua Gui
    Qiu, Shilun
    Yao, Xiangdong
    [J]. NATURE COMMUNICATIONS, 2016, 7
  • [4] Hierarchical NiCo2O4 Hollow Microcuboids as Bifunctional Electrocatalysts for Overall Water-Splitting
    Gao, Xuehui
    Zhang, Hongxiu
    Li, Quanguo
    Yu, Xuegong
    Hong, Zhanglian
    Zhang, Xingwang
    Liang, Chengdu
    Lin, Zhan
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (21) : 6290 - 6294
  • [5] Achieving a Record-High Yield Rate of 120.9 μgNH3 mgcat-1. h-1 for N2 Electrochemical Reduction over Ru Single-Atom Catalysts
    Geng, Zhigang
    Liu, Yan
    Kong, Xiangdong
    Li, Pai
    Li, Kan
    Liu, Zhongyu
    Du, Junjie
    Shu, Miao
    Si, Rui
    Zeng, Jie
    [J]. ADVANCED MATERIALS, 2018, 30 (40)
  • [6] GLOAG L, 2018, ANGEW CHEM, V130, P10398, DOI DOI 10.1002/ANGE.201806300
  • [7] Three-Dimensional Branched and Faceted Gold-Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis
    Gloag, Lucy
    Benedetti, Tania M.
    Cheong, Soshan
    Li, Yibing
    Chan, Xuan-Hao
    Lacroix, Lise-Marie
    Chang, Shery L. Y.
    Arenal, Raul
    Florea, Ileana
    Barron, Hector
    Barnard, Amanda S.
    Henning, Anna M.
    Zhao, Chuan
    Schuhmann, Wolfgang
    Gooding, J. Justin
    Tilley, Richard D.
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (32) : 10241 - 10245
  • [8] Nanoscale nickel oxide/nickel heterostructures for active hydrogen evolution electrocatalysis
    Gong, Ming
    Zhou, Wu
    Tsai, Mon-Che
    Zhou, Jigang
    Guan, Mingyun
    Lin, Meng-Chang
    Zhang, Bo
    Hu, Yongfeng
    Wang, Di-Yan
    Yang, Jiang
    Pennycook, Stephen J.
    Hwang, Bing-Joe
    Dai, Hongjie
    [J]. NATURE COMMUNICATIONS, 2014, 5
  • [9] Synthesis, properties and applications of one- and two-dimensional gold nanostructures
    Hong, Xun
    Tan, Chaoliang
    Chen, Junze
    Xu, Zhichuan
    Zhang, Hua
    [J]. NANO RESEARCH, 2015, 8 (01) : 40 - 55
  • [10] Vertically Aligned Oxygenated-CoS2-MoS2 Heteronanosheet Architecture from Polyoxometalate for Efficient and Stable Overall Water Splitting
    Hou, Jungang
    Zhang, Bo
    Li, Zhuwei
    Cao, Shuyan
    Sun, Yiqing
    Wu, Yunzhen
    Gao, Zhanming
    Sun, Licheng
    [J]. ACS CATALYSIS, 2018, 8 (05): : 4612 - 4621
1234