Research Article

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2016, 9(9): 2681–2686

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https://doi.org/10.1007/s12274-016-1155-1

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

Xianjun Du, Ninghua Fu, Shaolong Zhang, Chen Chen (*), Dingsheng Wang, and Yadong Li

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Department of Chemistry & Collaborative Innovation Center for Nanomaterial Science and Engineering, Tsinghua University, Beijing 100084, China

Keywords: ultrathin,nanowires,AuPd alloy,catalysts
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  • Abstract
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Novel gold-supporting silicate nanotubes are synthesized via a hydrothermalmethod followed by colloid deposition. Their catalytic performance for theselective oxidation of ethanol to acetaldehyde is assessed. The results show thatAu/CuSiO3 nanotubes exhibit both high activity and selectivity at high gashourly space velocity (GHSV). Ethanol conversion can reach up to ~98%, andthe selectivity for acetaldehyde is ~93% at 250 °C and ~100,000 mL·gcat–1·h–1. Incomparison, the catalytic activity of Au/MgSiO3 nanotubes is relatively low, andethanol conversion reaches only ~25% at 250 °C. However, when Cu species areadded to Au/MgSiO3, the catalytic activity improves significantly, indicatingthat the interactions between Au nanoparticles and Cu species are responsiblefor the high performance for selective oxidation of ethanol to acetaldehyde.
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Au/CuSiO3 nanotubes: High-performance robust catalysts for selective oxidation of ethanol to acetaldehyde. Nano Res. 2016, 9(9): 2681–2686 https://doi.org/10.1007/s12274-016-1155-1

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