NDLI: Preparation of Nano-Composited Catalyst from the Bulk Intermetallic Compound AuZr3 with Hydrogen Absorption

Content Provider	Springer Nature Link
Author	Endo, Naruki Kameoka, Satoshi Tsai, An Pang Hirata, Toshiya Nishimura, Chikashi
Copyright Year	2010
Abstract	Calcination-induced catalytic activity of CO oxidation reaction (CO + 1/2O2 → CO2) for an intermetallic, AuZr3 and a hydride, AuZr3Hx (x = 4.8) has been studied. The catalytic activities for both samples were originated from the formation of nano-gold particles and nano-crystalline ZrO2, result by oxidation upon calcination. Oxidation of the AuZr3Hx occurred at lower temperature than the AuZr3, gave rise to the formation of more homogenous distribution and smaller sizes of nano-gold particles (~5 nm) on ZrO2, which were responsible for relatively high catalytic performance. This study provides the possibility of hydrogen absorption treatment being a beneficial process for obtaining nano-composite from intermetallic compounds for catalysts.Oxidation of the hydrogen absorbed AuZr3Hx (x = 4.8) occurred at much lower temperature than that of the AuZr3. The calcined AuZr3Hx exhibited more homogenous distribution of nano-gold particles with smaller sizes (~5 nm) on the ZrO2, which were responsible for relatively high performance of CO oxidation.
Starting Page	67
Ending Page	71
Page Count	5
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	139
Issue Number	1-2
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2010-06-22
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogen absorption Preparation Nano-composited catalyst Intermetallic compound AuZr3 CO oxidation Physical Chemistry Organometallic Chemistry Industrial Chemistry/Chemical Engineering Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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