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CO preferential oxidation in a novel Au@ZrO₂ flow-through catalytic membrane reactor with high stability and efficiency

Zhu, Feng; Zhang, Yuting; Gu, Xuehong; Chen, Changlin; Jin, Wanqin; Ke, Xuebin

Authors

Feng Zhu

Yuting Zhang

Xuehong Gu

Changlin Chen

Wanqin Jin



Abstract

CO preferential oxidation (CO-PROX) achieves much interest as a strategy to remove trace CO in reformed gases for hydrogen utilization. Herein, we reported a novel Au@ZrO₂ catalytic membrane reactor by embedding gold nano-particles in ZrO₂ hollow fiber membrane for CO-PROX. The flow-through catalytic membrane exhibited high catalytic activity and oxygen selectivity, which gave a turnover frequency of 4.73 s⁻¹ at 60 °C, 2–3 times higher than conventional catalyst pellets. CO conversion of >95% was achieved over the catalytic membrane, which maintained great operational stability during 500-h operation even CO₂ and H₂O were added in the feed stream. The excellent catalytic performance of the flow-through catalytic membrane makes gold catalyst possible for practical application in the removal of CO from hydrogen.

Journal Article Type Article
Publication Date Aug 17, 2016
Journal International journal of hydrogen energy
Print ISSN 0360-3199
Electronic ISSN 0360-3199
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 41
Issue 31
Pages 13513-13520
APA6 Citation Zhu, F., Zhang, Y., Gu, X., Chen, C., Jin, W., & Ke, X. (2016). CO preferential oxidation in a novel Au@ZrO₂ flow-through catalytic membrane reactor with high stability and efficiency. International Journal of Hydrogen Energy, 41(31), 13513-13520. https://doi.org/10.1016/j.ijhydene.2016.05.210
DOI https://doi.org/10.1016/j.ijhydene.2016.05.210
Keywords Catalytic membrane reactor, Gold nano-particle, Hollow fiber, CO preferential oxidation, H₂ purification
Publisher URL http://www.sciencedirect.com/science/article/pii/S0360319916307662
Copyright Statement © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Additional Information Authors' accepted manuscript of article published in: International journal of hydrogen energy, 2016, v.41, issue 31.

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Copyright Statement
© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/



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