Title of article :
Toward the decoration of Pt nanoparticles supported on carbon nanotubes with Fe oxides and its effect on the catalytic reaction Original Research Article
Author/Authors :
Zhen Guo، نويسنده , , Chunmei Zhou، نويسنده , , Daming Shi، نويسنده , , Yifan Wang، نويسنده , , Xinli Jia، نويسنده , , Jie Chang، نويسنده , , Armando Borgna، نويسنده , , Chuan Wang، نويسنده , , Yanhui Yang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
10
From page :
131
To page :
140
Abstract :
Deposition of metallic oxides on noble metal catalysts improves their catalytic performance dramatically due to the highly active sites formed at the interface of two metals (nano-contact). In this work, Fe oxides were deposited on preformed Pt nanoparticles by using a novel microwave assisted polyol reduction method. The facile synthesis is performed in liquid phase at 438 K, which preserves the growth of large Pt nanoparticles and precludes the formation of Pt–Fe alloy. The Fe promoted Pt catalyst exhibited high activity (6340 h−1 in turnover frequency) and selectivity (89.1% for cinnamal alcohol) in the hydrogenation of cinnamaldehyde, which was attributed to the uniform distribution of Fe promoters on Pt surfaces. The characteristics of Fe oxides on Pt nanoparticles were identified by employing electrochemical analysis and X-ray photoelectron spectroscopy.
Keywords :
FeOx decorated Pt catalyst , Electrochemical measurement , Microwave assisted polyol reduction , Selective hydrogenation , Cinnamaldehyde
Journal title :
Applied Catalysis A:General
Serial Year :
2012
Journal title :
Applied Catalysis A:General
Record number :
1156975
Link To Document :
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