Nano Archive

Avoiding Loss of Catalytic Activity of Pd Nanoparticles Partially Embedded in Nanoditches in SiC Nanowires

Guo, Xiao-Ning and Shang, Ru-Jing and Wang, Dong-Hua and Jin, Guo-Qiang and Guo, Xiang-Yun and Tu, K. N. (2009) Avoiding Loss of Catalytic Activity of Pd Nanoparticles Partially Embedded in Nanoditches in SiC Nanowires. Nanoscale Research Letters, 5 (2). pp. 332-337.

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Official URL: http://www.springerlink.com/content/p20562l734446v...

Abstract

Nanoditches from selective etching of periodically twinned SiC nanowires were employed to hinder the migration and coalescence of Pd nanoparticles supported on the nanowires, and thus to improve their catalytic stability for total combustion of methane. The results show that the etched Pd/SiC catalyst can keep the methane conversion of almost 100% while the unetched one has an obvious decline in the catalytic activity from 100 to 82% after ten repeated reaction cycles. The excellent catalytic stability originates from the limitation of the nanoditches to the migration and growth of Pd nanoparticles.

Item Type:Article
Uncontrolled Keywords:SiC nanowires - Selective etching - Pd nanoparticles - High catalytic stability
Subjects:Material Science > Functional and hybrid materials
Physical Science > Nanophysics
Material Science > Nanofabrication processes and tools
Technology > Nanotechnology and energy applications
ID Code:8160
Deposited By:Lesley Tobin
Deposited On:17 Feb 2010 16:08
Last Modified:17 Feb 2010 16:08

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