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

doi:10.1038/s41929-018-0206-2

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

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Abstract

The limited thermal and water stability of metal-organic frameworks (MOFs) often restricts their applications in conventional catalysis involving 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 NTP-activated water-gas shift reaction (WGSR) over a MOF (HKUST-1). Significantly, the exceptional stability of HKUST-1 has been sustained under NTP activation and in the presence of water, leading to a high specific rate of 8.8 h⁻¹. We found that NTP-induced water dissociation has a two-fold promotion effect in WGSR, facilitating WGSR by supplying OH, and sustaining the stability and hence activity of HKUST-1. In situ characterisation of HKUST-1 revealed the critical role of open Cu sites in the binding of substrate molecules. This study paves the way for utilising MOFs for a wider range of catalysis.

Original language	English
Pages (from-to)	142-148
Journal	Nature Catalysis
Volume	2
Early online date	14 Jan 2019
DOIs	https://doi.org/10.1038/s41929-018-0206-2
Publication status	Published - 14 Feb 2019

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Photon Science Institute
Dalton Nuclear Institute
Manchester Environmental Research Institute

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title = "Sustaining metal-organic frameworks for water-gas shift catalysis by non-thermal plasma",

abstract = "The limited thermal and water stability of metal-organic frameworks (MOFs) often restricts their applications in conventional catalysis involving 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 NTP-activated water-gas shift reaction (WGSR) over a MOF (HKUST-1). Significantly, the exceptional stability of HKUST-1 has been sustained under NTP activation and in the presence of water, leading to a high specific rate of 8.8 h−1. We found that NTP-induced water dissociation has a two-fold promotion effect in WGSR, facilitating WGSR by supplying OH, and sustaining the stability and hence activity of HKUST-1. In situ characterisation of HKUST-1 revealed the critical role of open Cu sites in the binding of substrate molecules. This study paves the way for utilising MOFs for a wider range of catalysis.",

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

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AU - Xu, Shaojun

AU - Chansai, Sarayute

AU - Stere, Cristina

AU - Inceesungvorn, Burapat

AU - Goguet, Alexandre

AU - Wangkawong, Kanlayawat

AU - Taylor, S. F. Rebecca

AU - Al-Janabi, Nadeen

AU - Hardacre, Christopher

AU - Martin, Philip A.

AU - Fan, Xiaolei

PY - 2019/2/14

Y1 - 2019/2/14

N2 - The limited thermal and water stability of metal-organic frameworks (MOFs) often restricts their applications in conventional catalysis involving 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 NTP-activated water-gas shift reaction (WGSR) over a MOF (HKUST-1). Significantly, the exceptional stability of HKUST-1 has been sustained under NTP activation and in the presence of water, leading to a high specific rate of 8.8 h−1. We found that NTP-induced water dissociation has a two-fold promotion effect in WGSR, facilitating WGSR by supplying OH, and sustaining the stability and hence activity of HKUST-1. In situ characterisation of HKUST-1 revealed the critical role of open Cu sites in the binding of substrate molecules. This study paves the way for utilising MOFs for a wider range of catalysis.

AB - The limited thermal and water stability of metal-organic frameworks (MOFs) often restricts their applications in conventional catalysis involving 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 NTP-activated water-gas shift reaction (WGSR) over a MOF (HKUST-1). Significantly, the exceptional stability of HKUST-1 has been sustained under NTP activation and in the presence of water, leading to a high specific rate of 8.8 h−1. We found that NTP-induced water dissociation has a two-fold promotion effect in WGSR, facilitating WGSR by supplying OH, and sustaining the stability and hence activity of HKUST-1. In situ characterisation of HKUST-1 revealed the critical role of open Cu sites in the binding of substrate molecules. This study paves the way for utilising MOFs for a wider range of catalysis.

U2 - 10.1038/s41929-018-0206-2

DO - 10.1038/s41929-018-0206-2

M3 - Article

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VL - 2

SP - 142

EP - 148

JO - Nature Catalysis

JF - Nature Catalysis

ER -

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

Abstract

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