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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.121  No.1410 (February) (2013)  >  pp.226-229

Journal of the Ceramic Society of Japan
<<Previous article Vol.121  No.1410 (February) (2013)   pp.226 - 229 Next article>>

Precipitation of Ni nanoparticle on Al2O3 powders by novel rotary chemical vapor deposition

Jianfeng ZHANG1) 3), Rong TU2), Takashi GOTO1)
1) Institute for Materials Research, Tohoku University 2) Wuhan University of Technology 3) International Advanced Research and Education Organization, Tohoku University

Ni nanoparticles were precipitated on Al2O3 support powder by rotary chemical vapor deposition (RCVD). The Ni nanoparticle size increased from 8 to 62 nm in diameter and the content of Ni decreased from 6.6 to 2.4 mass % with increasing Al2O3 powder diameter (DAl2O3) from 80 nm to 150 µm. The catalytic activity of Ni precipitated Al2O3 (Ni/Al2O3) powder was evaluated by the hydrogen production rate (RH2) in a methanol-steam flow. The RH2 decreased with increasing DAl2O3 and increased with increasing specific surface area of Ni/Al2O3 powder. The highest RH2 of Ni/Al2O3 powder was 709 × 10−3 mol kg−1 s−1 at 633 K, DNi = 8 nm and DAl2O3 = 80 nm.


Keyword:
Ni nanoparticles, Rotary chemical vapor deposition, Alumina support, Catalytic activity

Received: October 17, 2012
Accepted: November 30, 2012 , Published online: February 01, 2013
Copyright © 2013 The Ceramic Society of Japan

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