2D graphdiyne loading ruthenium atoms for high efficiency water splitting

Huidi Yu, Lan Hui, Yurui Xue, Yuxin Liu, Yan Fang, Chengyu Xing, Chao Zhang, Danyan Zhang, Xi Chen, Yuncheng Du, Zhongqiang Wang, Yang Gao, Bolong Huang (Corresponding Author), Yuliang Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

The theoretical simulation indicates that the strong coupling between the Ru atoms and neighboring C atoms in GDY makes the Ru to be a unique electron-mediating-vehicle (EMV) for fast reversible redox-switching endowing the catalyst with excellent catalytic performances. Our experimental study is fully in accordance with the theoretical simulation, which shows that the high-activity and ultra-high selectivity of the Ru atomic catalyst. For example, Ru/GDY can deliver 10 mA cm−2 at a low overpotential of 44 mV and exhibits a very small Tafel slope of 30 mV dec−1, comparable to commercial Pt/C, in hydrogen evolution reaction (HER) in acidic conditions. We also found that Ru/GDY has higher catalytic activity and stability for oxygen evolution reaction (OER) than RuO2 in 0.5 M H2SO4 solutions.

Original languageEnglish
Article number104667
JournalNano Energy
Volume72
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Acidic oxygen evolution reaction
  • Atom catalyst
  • Graphdiyne
  • Hydrogen production
  • Water splitting

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this