Metal-Organic Framework Nanosheet Electrocatalysts for Efficient H-2 Production from Methanol Solution: Methanol-Assisted Water Splitting or Methanol Reforming?

doi:10.1021/acsami.8b06948

	Metal-Organic Framework Nanosheet Electrocatalysts for Efficient H-2 Production from Methanol Solution: Methanol-Assisted Water Splitting or Methanol Reforming?
	Wei, Xinfa ; Wang, Shun ; Hua, Zile 1; Chen, Lisong ; Shi, Jianlin 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2018
卷号	10 期号:30 页码:25422
关键词	hydrogen production electrocatalysts methanol-assisted water splitting metal-organic framework nanosheets isotope labeling
ISSN号	1944-8244
DOI	10.1021/acsami.8b06948
英文摘要	Hydrogen (H-2) is presently one of the most promising clean and renewable energy sources, but the conventional hydrogen production by electrochemical water-splitting, though of great potential and extensively studied, is seriously obstructed especially by the anodic oxygen evolution reaction because of its sluggish kinetics. Herein, we report the efficient hydrogen production from methanol solution using facile-synthesized ultrathin 2D bi-metal-organic framework nanosheets (UMOFNs) as a precious metal-free anodic catalyst. The prepared UMOFNs showed a much lowered anodic potential of 1.365 (V vs reversible hydrogen electrode) at 10 mA cm(-2), which was markedly 232 mV lower than that in conventional water splitting, and moreover, the average turnover frequency reached 19.62 s(-1). Benefiting from nearly 100% Faraday efficiency of H-2 production on the counter graphite carbon electrodes without additional electrocatalysts, high-purity hydrogen was produced with enhanced efficiency. More importantly, the anodic electro-reaction mechanism has been evidenced experimentally: the electrocatalytic hydrogen production from the methanol solution is a methanol-assisted water splitting, rather than a methanol-reforming process as claimed in a number of literature studies, in which methanol is oxidized as a sacrificing agent in place of water oxidization in pure water.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000440956000052
资助机构	This work was supported by National Natural Science Foundation of China (51702099), Shanghai Sailing Program (17YF1403800), China Postdoctoral Science Foundation funded project (2017M611500), the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201702SIC). The authors thank beamline BL14W1 (Shanghai Synchrotron Radiation Facility) for providing the beam time. ; This work was supported by National Natural Science Foundation of China (51702099), Shanghai Sailing Program (17YF1403800), China Postdoctoral Science Foundation funded project (2017M611500), the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201702SIC). The authors thank beamline BL14W1 (Shanghai Synchrotron Radiation Facility) for providing the beam time.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24760]
专题	中国科学院上海硅酸盐研究所
作者单位	1.East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Wei, Xinfa,Wang, Shun,Hua, Zile,et al. Metal-Organic Framework Nanosheet Electrocatalysts for Efficient H-2 Production from Methanol Solution: Methanol-Assisted Water Splitting or Methanol Reforming?[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(30):25422, 25428.
APA	Wei, Xinfa,Wang, Shun,Hua, Zile,Chen, Lisong,&Shi, Jianlin.(2018).Metal-Organic Framework Nanosheet Electrocatalysts for Efficient H-2 Production from Methanol Solution: Methanol-Assisted Water Splitting or Methanol Reforming?.ACS APPLIED MATERIALS & INTERFACES,10(30),25422.
MLA	Wei, Xinfa,et al."Metal-Organic Framework Nanosheet Electrocatalysts for Efficient H-2 Production from Methanol Solution: Methanol-Assisted Water Splitting or Methanol Reforming?".ACS APPLIED MATERIALS & INTERFACES 10.30(2018):25422.