Au@Cu2O core@shell nanocrystals as sustainable catalysts for efficient hydrogen production from ammonia borane

Mei Jing Fang, Yu Chang Lin, Jen Yu Jan, Ting Hsuan Lai, Ping Yen Hsieh, Ming Yu Kuo, Yi Hsuan Chiu, Chun Wen Tsao, Yi An Chen, Yu Ting Wang, Yi Jia Hong, Jhen Yang Wu, Yew Chung Sermon Wu, Yan Gu Lin, Tso Fu Mark Chang, Chun Yi Chen, Masato Sone, Sue Min Chang, Chung Liang Chang, Yung Jung Hsu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The use of Au@Cu2O core@shell nanocrystals as sustainable catalysts for efficient hydrogen (H2) production from ammonia borane (AB) is demonstrated. By combining the attributes associated with core@shell structural features and electronic interactions, Au@Cu2O exhibited remarkable performance toward AB hydrolysis. The effect of shell thickness on H2 production performance was systematically investigated. Results showed that H2 production rate increased monotonically with shell thickness, while degree of dehydrogenation of AB was subject to optimization by shell thickness. A maximal 3.0 equivalents of H2 production can be achieved by Au@Cu2O with an optimal Cu2O shell thickness. The H2 produced from AB hydrolysis on Au@Cu2O was introduced to power a fuel cell for lightening light emitting diodes. The findings from the work not only enrich the family of metal/metal oxide composite catalysts for AB hydrolysis, but also deepen the fundamental understanding of implications of core@shell structural features and electronic interactions in dehydrogenation of AB.

Original languageEnglish
Article number122198
JournalApplied Catalysis B: Environmental
Volume324
DOIs
StatePublished - 5 May 2023

Keywords

  • Ammonia borane
  • Au@CuO
  • Core@shell
  • Hydrogen production
  • Hydrolysis
  • Light emitting diodes

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