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

Xu, Shaojun, Chansai, Sarayute, Stere, Cristina, Inceesungvorn, Burapat, Goguet, Alexandre, Wangkawong, Kanlayawat, Taylor, S. F. Rebecca, Al-Janabi, Nadeen, Hardacre, Christopher, Martin, Philip A. and Fan, Xiaolei 2019. Sustaining metal–organic frameworks for water–gas shift catalysis by non-thermal plasma. Nature Catalysis 2 (2) , pp. 142-148. 10.1038/s41929-018-0206-2

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Nature Research
ISSN: 2520-1158
Date of Acceptance: 21 November 2018
Last Modified: 11 Mar 2021 15:15

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