Beyond hydrogen production: Solar−driven H2S−donating value−added chemical production over MnxCd1−xS/CdyMn1−yS catalyst

Research output: Contribution to journalArticle

Abstract

Simultaneous hydrogen (H2) evolution and value−added chemicals production are highly attractive but have not drawn enough attention. Here, we demonstrate a hydrogen sulphide (H2S)−induced product−targeting (HIPT) strategy for the coproduction of H2 and valuable chemical feedstocks from Na2S/Na2SO3 via overall H2S splitting using a MnxCd1−xS/CdyMn1−yS catalyst driven by visible light excitation. With this chemistry, 113 mmol g−1 h−1 of hydrogen evolution rate is achieved, surpassing most of the previously reported state-of-the-art photocatalyst, together with the production of value−added Na2S2O3 with nearly 100% selectivity. This work not only provides a good example for solar energy conversion via overall H2S splitting, but also offers new insights into the resource utilization of sacrificial donor (Na2S/Na2SO3) in various catalytic fields such as H2O splitting and CO2 reduction.

Details

Authors
  • Meng Dan
  • Jianglai Xiang
  • Jian Yang
  • Fan Wu
  • Chunqiu Han
  • Yunqian Zhong
  • Kaibo Zheng
  • Shan Yu
  • Ying Zhou
Organisations
External organisations
  • Southwest Petroleum University
  • Technical University of Denmark
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Energy Engineering

Keywords

  • Hydrogen evolution, Overall HS splitting, Sacrificial reagent conversion, Value−added chemical, “Dual−Solid−Solution” heterostructure
Original languageEnglish
Article number119706
JournalApplied Catalysis B: Environmental
Volume284
Publication statusPublished - 2021
Publication categoryResearch
Peer-reviewedYes