Hierarchical Ni-Mo-S nanosheets on carbon fiber cloth : A flexible electrode for efficient hydrogen generation in neutral electrolyte

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

436 Scopus Citations
View graph of relations

Author(s)

  • Jianwei Miao
  • Fang-Xing Xiao
  • Hong Bin Yang
  • Si Yun Khoo
  • Jiazang Chen
  • Ying-Ya Hsu
  • Hao Ming Chen

Detail(s)

Original languageEnglish
Article numbere1500259
Journal / PublicationScience Advances
Volume1
Issue number7
Publication statusPublished - 7 Aug 2015
Externally publishedYes

Link(s)

Abstract

A unique functional electrode made of hierarchal Ni-Mo-S nanosheets with abundant exposed edges anchored on conductive and flexible carbon fiber cloth, referred to as Ni-Mo-S/C, has been developed through a facile biomolecule-assisted hydrothermal method. The incorporation of Ni atoms in Mo-S plays a crucial role in tuning its intrinsic catalytic property by creating substantial defect sites as well as modifying the morphology of Ni-Mo-S network at atomic scale, resulting in an impressive enhancement in the catalytic activity. The Ni-Mo-S/C electrode exhibits a large cathodic current and a low onset potential for hydrogen evolution reaction in neutral electrolyte (pH ∼7), for example, current density of 10 mA/cm2 at a very small overpotential of 200 mV. Furthermore, the Ni-Mo-S/C electrode has excellent electrocatalytic stability over an extended period, much better than those of MoS2/C and Pt plate electrodes. Scanning and transmission electron microscopy, Raman spectroscopy, x-ray diffraction, x-ray photoelectron spectroscopy, and x-ray absorption spectroscopy were used to understand the formation process and electrocatalytic properties of Ni-Mo-S/C. The intuitive comparison test was designed to reveal the superior gas-evolving profile of Ni-Mo-S/C over that of MoS2/C, and a laboratory-scale hydrogen generator was further assembled to demonstrate its potential application in practical appliances. 2015 © The Authors, some rights reserved; exclusive licensee American Association forthe Advancement of Science.

Citation Format(s)

Hierarchical Ni-Mo-S nanosheets on carbon fiber cloth: A flexible electrode for efficient hydrogen generation in neutral electrolyte. / Miao, Jianwei; Xiao, Fang-Xing; Bin Yang, Hong et al.
In: Science Advances, Vol. 1, No. 7, e1500259, 07.08.2015.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Download Statistics

No data available