Sustaining metal–organic frameworks for water–gas shift catalysis by non-thermal plasma

Shaojun Xu, Sarayute Chansai, Cristina Stere, Burapat Inceesungvorn, Alexandre Goguet, Kanlayawat Wangkawong, S. F.Rebecca Taylor, Nadeen Al-Janabi, Christopher Hardacre, Philip A. Martin, Xiaolei Fan

Research output: Journal PublicationArticlepeer-review

70 Citations (Scopus)

Abstract

The limited thermal and water stability of metal–organic frameworks (MOFs) often restricts their applications in conventional catalysis that involve thermal treatment and/or use of water. Non-thermal plasma (NTP) is a promising technique that can overcome barriers in conventional catalysis. Here we report an example of an NTP-activated water–gas shift reaction (WGSR) over a MOF (HKUST-1). Significantly, the exceptional stability of HKUST-1 was sustained under NTP activation and in the presence of water, which led to a high specific rate of 8.8 h −1 . We found that NTP-induced water dissociation has a twofold promotion effect in WGSR, as it facilitates WGSR by supplying OH and sustains the stability and hence activity of HKUST-1. In situ characterization of HKUST-1 revealed the critical role of open Cu sites in the binding of substrate molecules. This study paves the way to utilize MOFs for a wider range of catalysis.

Original languageEnglish
Pages (from-to)142-148
Number of pages7
JournalNature Catalysis
Volume2
Issue number2
DOIs
Publication statusPublished - 1 Feb 2019
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Bioengineering
  • Biochemistry
  • Process Chemistry and Technology

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