High-efficiency hydrogen evolution from seawater using hetero-structured T/Td phase ReS2 nanosheets with cationic vacancies

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

9 Scopus Citations
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Author(s)

  • Gang Zhou
  • Zijing Guo
  • Yun Shan
  • Shuyi Wu
  • Jinlei Zhang
  • Kang Yan
  • Lizhe Liu
  • Xinglong Wu

Detail(s)

Original languageEnglish
Pages (from-to)42-48
Journal / PublicationNano Energy
Volume55
Early online date24 Oct 2018
Publication statusPublished - Jan 2019

Abstract

Hydrogen production by water splitting with electrochemical/photoelectrochemical techniques relies mainly on fresh water which only represents 7% of the total water resource in the world. The difficulty with performing seawater splitting arises from the complex seawater composition and environment, but from the viewpoint of better utilization of natural resources, it is highly desirable to conduct the hydrogen evolution reaction (HER) in seawater. Herein, we design and synthesize few-layer heterostructured ReS2 nanosheets with the lateral metallic T and semiconducting Td phase interface, in which cationic vacancies are intentionally introduced as active sites. The ReS2 nanosheets respond to the whole spectrum of visible light and produce hydrogen from seawater efficiently. Theoretical calculation and experiments indicate that the cationic vacancies are favorable to H+ adsorption because H+ has the lowest adsorption energy compared to other cations. The nanosheets deliver stable HER performance for over 12 h in a wide range of salinity. This effective strategy to produce hydrogen from seawater may be extended to other 2D materials to accomplish highly efficient hydrogen evolution from seawater.

Research Area(s)

  • Cationic vacancy, Hydrogen production, ReS2 heterostructure, Seawater splitting

Citation Format(s)

High-efficiency hydrogen evolution from seawater using hetero-structured T/Td phase ReS2 nanosheets with cationic vacancies. / Zhou, Gang; Guo, Zijing; Shan, Yun; Wu, Shuyi; Zhang, Jinlei; Yan, Kang; Liu, Lizhe; Chu, Paul K.; Wu, Xinglong.

In: Nano Energy, Vol. 55, 01.2019, p. 42-48.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review