Nanotubular g-C3N4 confining AuPd particle for the improved catalytic reactivity in hydrogen production from formic acid

J. Ding, L. Wang, S. B. Stone, Y. Zhu, W. Liang, Y. Jiang, J. Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Hydrogen is a promising energy vector that provides an alternative to carbon fuels. Catalytic dehydrogenation of formic acid is an efficient solution to produce hydrogen, as formic acid can store hydrogen economically. In this study, novel AuPd supported by nanotubular T-g-C3N4 was synthesized using a chemical wet impregnation and reduction method. The graphene, bulk B-g-C3N4, and nanosheet-like S-g-C3N4 were also employed as AuPd supports for comparison. It was observed that the AuPd nanoparticles on carbon nitrides have higher dispersion and activity than those on graphene, due to the anchoring and electron donation effects of nitrogen. The reactivity of AuPd nanocatalyst was related to the geometry of g-C3N4 support. The T-g-C3N4 possesses the lowest surface area, which induced the lower dispersion of supported AuPd, as compared to B-g-C3N4 and S-g-C3N4. However, the AuPd/T-g-C3N4 delivered the highest catalytic activity, attributed to the confinement effect of the nanotubular geometry.

Original languageEnglish
Article number101140
Pages (from-to)1-9
Number of pages9
JournalMaterials Today Chemistry
Volume26
DOIs
Publication statusPublished - Dec 2022

Keywords

  • Hydrogenation production
  • Formic acid dehydrogenation
  • AuPd catalyst
  • g-C₃N₄
  • Confinement effect

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