Ultrathin metal-organic framework array for efficient electrocatalytic water splitting

被引:1157
作者
Duan, Jingjing [1 ]
Chen, Sheng [1 ]
Zhao, Chuan [1 ]
机构
[1] Univ New South Wales, Sch Chem, Fac Sci, Sydney, NSW 2052, Australia
基金
澳大利亚研究理事会;
关键词
OXYGEN-EVOLUTION; CATALYTIC-ACTIVITY; HIGHLY EFFICIENT; NANOWIRE ARRAYS; NANOSHEETS; HYDROGEN; MFI;
D O I
10.1038/ncomms15341
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Two-dimensional metal-organic frameworks represent a family of materials with attractive chemical and structural properties, which are usually prepared in the form of bulk powders. Here we show a generic approach to fabricate ultrathin nanosheet array of metal-organic frameworks on different substrates through a dissolution-crystallization mechanism. These materials exhibit intriguing properties for electrocatalysis including highly exposed active molecular metal sites owning to ultra-small thickness of nanosheets, improved electrical conductivity and a combination of hierarchical porosity. We fabricate a nickel-iron-based metal-organic framework array, which demonstrates superior electrocatalytic performance towards oxygen evolution reaction with a small overpotential of 240 mV at 10 mA cm(-2), and robust operation for 20,000 s with no detectable activity decay. Remarkably, the turnover frequency of the electrode is 3.8 s(-1) at an overpotential of 400 mV. We further demonstrate the promise of these electrodes for other important catalytic reactions including hydrogen evolution reaction and overall water splitting.
引用
收藏
页数:7
相关论文
共 30 条
[1]   Three-Dimensional N-Doped Graphene Hydrogel/NiCo Double Hydroxide Electrocatalysts for Highly Efficient Oxygen Evolution [J].
Chen, Sheng ;
Duan, Jingjing ;
Jaroniec, Mietek ;
Qiao, Shi Zhang .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (51) :13567-13570
[2]   Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts [J].
Choi, Minkee ;
Na, Kyungsu ;
Kim, Jeongnam ;
Sakamoto, Yasuhiro ;
Terasaki, Osamu ;
Ryoo, Ryong .
NATURE, 2009, 461 (7261) :246-U120
[3]   Homonuclear Mixed-Valent Cobalt Imidazolate Framework for Oxygen-Evolution Electrocatalysis [J].
Fluegel, Erik A. ;
Lau, Vincent W-h. ;
Schlomberg, Hendrik ;
Glaum, Robert ;
Lotsch, Bettina V. .
CHEMISTRY-A EUROPEAN JOURNAL, 2016, 22 (11) :3676-3680
[4]   Nanoscale nickel oxide/nickel heterostructures for active hydrogen evolution electrocatalysis [J].
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 .
NATURE COMMUNICATIONS, 2014, 5
[5]  
Gong Y., CRYST GROWTH DES, V14, P649
[6]   A Graphene Oxide and Copper-Centered Metal Organic Framework Composite as a Tri-Functional Catalyst for HER, OER, and ORR [J].
Jahan, Maryam ;
Liu, Zhaolin ;
Loh, Kian Ping .
ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (43) :5363-5372
[7]   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
[8]   In situ Cobalt-Cobalt Oxide/N-Doped Carbon Hybrids As Superior Bifunctional Electrocatalysts for Hydrogen and Oxygen Evolution [J].
Jin, Haiyan ;
Wang, Jing ;
Su, Diefeng ;
Wei, Zhongzhe ;
Pang, Zhenfeng ;
Wang, Yong .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (07) :2688-2694
[9]   Salts of aromatic carboxylates: the crystal structures of nickel(II) and cobalt(II) 2,6-naphthalenedicarboxylate tetrahydrate [J].
Kaduk, JA ;
Hanko, JA .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2001, 34 :710-714
[10]  
Kim HS, 2017, NAT MATER, V16, P454, DOI [10.1038/NMAT4810, 10.1038/nmat4810]