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Nano Research 2016, 9(9): 2681-2686 https://doi.org/10.1007/s12274-016-1155-1
Research Article | Issue | Published: 27 June 2016

Au/CuSiO3 nanotubes: High-performance robust catalysts for selective oxidation of ethanol to acetaldehyde

Show Author's Information Xianjun Du,  Ninghua Fu,  Shaolong Zhang,  Chen Chen( ),  Dingsheng Wang,  Yadong Li
Department of Chemistry & Collaborative Innovation Center for Nanomaterial Science and EngineeringTsinghua UniversityBeijing100084China
Keywords:
nanowires, ultrathin, AuPd alloy, catalysts
Cite this article:
Du X, Fu N, Zhang S, et al. Au/CuSiO3 nanotubes: High-performance robust catalysts for selective oxidation of ethanol to acetaldehyde. Nano Research, 2016, 9(9): 2681-2686. https://doi.org/10.1007/s12274-016-1155-1
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Abstract Full text Electronic supplementary material About this article

Novel gold-supporting silicate nanotubes are synthesized via a hydrothermal method followed by colloid deposition. Their catalytic performance for the selective oxidation of ethanol to acetaldehyde is assessed. The results show that Au/CuSiO3 nanotubes exhibit both high activity and selectivity at high gas hourly space velocity (GHSV). Ethanol conversion can reach up to ~98%, and the selectivity for acetaldehyde is ~93% at 250 ℃ and ~100, 000 mL·gcat–1·h–1. In comparison, the catalytic activity of Au/MgSiO3 nanotubes is relatively low, and ethanol conversion reaches only ~25% at 250 ℃. However, when Cu species are added to Au/MgSiO3, the catalytic activity improves significantly, indicating that the interactions between Au nanoparticles and Cu species are responsible for the high performance for selective oxidation of ethanol to acetaldehyde.


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About this article

Au/CuSiO3 nanotubes: High-performance robust catalysts for selective oxidation of ethanol to acetaldehyde

Show Author's information Xianjun Du, Ninghua Fu, Shaolong Zhang, Chen Chen( ), Dingsheng Wang, Yadong Li
Department of Chemistry & Collaborative Innovation Center for Nanomaterial Science and EngineeringTsinghua UniversityBeijing100084China

Abstract

Novel gold-supporting silicate nanotubes are synthesized via a hydrothermal method followed by colloid deposition. Their catalytic performance for the selective oxidation of ethanol to acetaldehyde is assessed. The results show that Au/CuSiO3 nanotubes exhibit both high activity and selectivity at high gas hourly space velocity (GHSV). Ethanol conversion can reach up to ~98%, and the selectivity for acetaldehyde is ~93% at 250 ℃ and ~100, 000 mL·gcat–1·h–1. In comparison, the catalytic activity of Au/MgSiO3 nanotubes is relatively low, and ethanol conversion reaches only ~25% at 250 ℃. However, when Cu species are added to Au/MgSiO3, the catalytic activity improves significantly, indicating that the interactions between Au nanoparticles and Cu species are responsible for the high performance for selective oxidation of ethanol to acetaldehyde.

Keywords: nanowires, ultrathin, AuPd alloy, catalysts

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Publication history
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Acknowledgements

Publication history

Received: 08 May 2016
Revised: 15 May 2016
Accepted: 16 May 2016
Published: 27 June 2016
Issue date: September 2016

Copyright

© Tsinghua University Press and Springer‐Verlag Berlin Heidelberg 2016

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 21573119, 21590792, 21521091, 21131004, 21390393, and U1463202).

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