Plasmon-enhanced hydrogen evolution on Pt-anchored titanium nitride nanowire arrays

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

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Author(s)

  • Jintao Zhang
  • Abebe Reda Woldu
  • Xia Zhao
  • Yibing Song
  • Hong Xia
  • Fushen Lu
  • Liangsheng Hu

Detail(s)

Original languageEnglish
Article number153745
Journal / PublicationApplied Surface Science
Volume598
Online published20 May 2022
Publication statusPublished - 1 Oct 2022

Abstract

Plasmonic materials integrated with electrochemical catalysts produce hot carriers that improve the catalytic activity of the hydrogen evolution reaction (HER). Previous studies have mainly focused on noble metal-based plasmonic materials. Herein, an efficient catalyst comprising non-noble TiN as the plasmonic booster and Pt nanoparticles (NPs) as the cocatalyst is prepared on carbon cloth (CC) (Pt/TiN/CC) by nitridation of TiO2 in NH3 and electrodeposition. The HER properties are improved significantly as manifested by a small overpotential of 16 mV at a current density of 10 mA cm−210) as well as 2-fold decay in η10 compared to the control experiment conducted in darkness (33 mV). To investigate the role of light-excited hot electrons in the reduction of protons to H2, Pt/TiOx/CC is irradiated with UV–visible light in the control experiment and the superior characteristics of Pt/TiN/CC corroborate the surface plasmon resonance (SPR) enhancement rendered from the TiN nanowire arrays. This study provides a fundamental understanding of hot electronics generated by SPR and insights into the design of non-noble electrocatalysts for HER and other applications.

Research Area(s)

  • Hot electrons, Hydrogen evolution reaction, Surface plasmon resonance, TiN

Citation Format(s)

Plasmon-enhanced hydrogen evolution on Pt-anchored titanium nitride nanowire arrays. / Zhang, Jintao; Reda Woldu, Abebe; Zhao, Xia; Peng, Xiang; Song, Yibing; Xia, Hong; Lu, Fushen; Chu, Paul K.; Hu, Liangsheng.

In: Applied Surface Science, Vol. 598, 153745, 01.10.2022.

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