Noble-Metal-Free Hybrid Membranes for Highly Efficient Hydrogen Evolution

Xuyang Wang; Xin Gan; Tao Hu; Kazunori Fujisawa; Yu Lei; Zhong Lin; Ben Xu; Zheng-Hong Huang; Feiyu Kang; Mauricio Terrones; Ruitao Lv

doi:10.1002/adma.201603617

Noble-Metal-Free Hybrid Membranes for Highly Efficient Hydrogen Evolution

Adv Mater. 2017 Jan;29(4). doi: 10.1002/adma.201603617. Epub 2016 Nov 28.

Authors

Xuyang Wang¹, Xin Gan^{1

2}, Tao Hu¹, Kazunori Fujisawa³, Yu Lei⁴, Zhong Lin³, Ben Xu¹, Zheng-Hong Huang¹, Feiyu Kang^{1

2}, Mauricio Terrones^{3

4

5

6}, Ruitao Lv¹

Affiliations

¹ Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
² Graduate School at Shenzhen of Tsinghua University, Shenzhen, 518055, China.
³ Department of Physics, The Pennsylvania State University, University Park, PA, 16802, USA.
⁴ Department of Materials Science and Engineering and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802, USA.
⁵ Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA.
⁶ Institute of Carbon Science and Technology, Shinshu University, Wakasato 4-17-1, Nagano, 380-8553, Japan.

PMID: 27893175
DOI: 10.1002/adma.201603617

Abstract

Free-standing and flexible WS₂ /WO_2.9 /C hybrid membranes are synthesized and used as catalytic electrodes for electrochemical hydrogen evolution, exhibiting a high and stable catalytic activity. By virtue of the synergetic effect, a low onset overpotential of 20 mV and a Tafel slope of 36 mV dec^-1 are achieved.

Keywords: electrocatalysis; free-standing; hydrogen evolution reaction; tungsten disulfide; tungsten suboxide.