Controllable Synthesis of Ruthenium Phosphides (RuP and RuP2) for pH-Universal Hydrogen Evolution Reaction

Qingbo Chang, Jingwen Ma, Yuanzhi Zhu, Zhen Li, Danyun Xu, Xuezhi Duan, Wenchao Peng, Yang Li, Guoliang Zhang, Fengbao Zhang, Xiaobin Fan

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

Metal phosphides are promising efficient non-Pt electrocatalysts for hydrogen evolution reaction (HER). Herein, we report a simple strategy to controllably synthesize pure RuP and RuP2 and evaluate their HER performances in all pH range. Different from other transition metal phosphides, the HER performance of the RuPx in all pH range obviously improves as the phosphorus content decreases. By systematic research, it has been found that the RuP-475 with more Ru had much better conductivity and more catalytically active sites than the P rich RuP2-550. In addition, the RuP-475 exhibits excellent HER performance with small overpotential at a current density of 10 mA cm-2 (46, 47, 22 mV in pH 0, 7, and 14, respectively).
Original languageEnglish (US)
Pages (from-to)6388-6394
Number of pages7
JournalACS Sustainable Chemistry and Engineering
Volume6
Issue number5
DOIs
StatePublished - May 7 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-20

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • General Chemical Engineering
  • General Chemistry

Fingerprint

Dive into the research topics of 'Controllable Synthesis of Ruthenium Phosphides (RuP and RuP2) for pH-Universal Hydrogen Evolution Reaction'. Together they form a unique fingerprint.

Cite this