Construction of hollow mesoporous silica nanoreactors for enhanced photo-oxidations over Au-Pt catalysts-Reference-Cited by-同舟云学术

Construction of hollow mesoporous silica nanoreactors for enhanced photo-oxidations over Au-Pt catalysts

Published:2020-04-24 Issue:11 Volume:7 Page:1647-1655
ISSN:2095-5138
Container-title:National Science Review
language:en
Short-container-title:

Author:

Tian Hao¹²,Zhao Jinhui³,Wang Xinyao¹,Wang Lizhuo³,Liu Hao²,Wang Guoxiu²,Huang Jun³,Liu Jian¹⁴^ORCID,Lu G Q (Max)⁵

Affiliation:

1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China

2. Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia

3. Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia

4. DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering and Advanced Technology Institute, University of Surrey, Guildford, Surrey GU2 7XH, UK

5. University of Surrey, Guildford, Surrey GU2 7XH, UK

Abstract

Abstract It is highly desirable to design hollow structures with multi-scale functions by mimicking cells for the construction of micro/nanoreactors. Herein, we report the construction of hollow-structured submicrometer-photoreactors with bimetallic catalysts loaded within mesoporous silicas. The synthesis parameters are optimized to study the evolution of hollow structure through hydrothermal treatment and an ‘adhesive-contraction’ formation mechanism is proposed. AuPt@HMZS catalysts exhibited a broader absorbance region under visible light and the adsorption edge displayed a red-shift, indicating the strong metal–metal interactions at the alloy interface. The reaction performance of the coupled Au-Pt catalysts can be tuned to achieve excellent catalytic activity in cinnamyl alcohol oxidation to cinnamic acid for 3.1 mmol g−1 with 99% selectivity. The proposed strategy to build hollow structures as multifunctional micro/nanoreactors is promising for the design of high-performance and sustainable catalysts for chemical synthesis.

Funder

Dalian National Laboratory for Clean Energy

Chinese Academy of Sciences

Australian Research Council

Publisher

Oxford University Press (OUP)

Subject

Multidisciplinary

Link

http://academic.oup.com/nsr/advance-article-pdf/doi/10.1093/nsr/nwaa080/33552876/nwaa080.pdf

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