Carbon-catalyzed oxygen-mediated dehydrogenation of formaldehyde in alkaline solution for efficient hydrogen production

Nan Lu, Xiaoqing Yan*, Hui Ling Tan, Hisayoshi Kobayashi, Xuehan Yu, Yuezhou Li, Jiemei Zhang, Zhengxin Peng, Jing Sui, Ziying Zhang, Wen Liu*, Renhong Li*, Benxia Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report an efficient process to dehydrogenate formaldehyde in alkaline solution, catalyzed by carbon nanotubes (CNTs) via a unique reaction mechanism involving molecular O2. The superior catalytic performance of carbon nanotubes (CNTs) compared to the other carbon-based catalysts is attributed to their sp2-carbon-rich surface, hydrophilicity and abundant surface defects, which are the most plausible active sites. Peroxide species originating from the activation of adsorbed molecular oxygen on the CNTs is found to be a key to C–H activation, leading to efficient hydrogen production. The cost-effective carbon-based dehydrogenation catalysts offer new opportunities to the development of novel liquid organic hydrogen carrier technologies.

Original languageEnglish
Pages (from-to)27877-27886
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume47
Issue number65
DOIs
Publication statusPublished - Jul 30 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC

ASJC Scopus Subject Areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Keywords

  • Carbon catalysts
  • Dehydrogenation
  • Formaldehyde
  • Oxygen-mediated catalysis
  • Surface defects

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