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One-step synthesis of bimetallic Pt-Pd/MCM-41 mesoporous materials with superior catalytic performance for toluene oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
49685 46760 2016 5 PDF Available
Title
One-step synthesis of bimetallic Pt-Pd/MCM-41 mesoporous materials with superior catalytic performance for toluene oxidation
Abstract

•Bimetallic Pt-Pd/MCM-41 catalysts were prepared by one-step synthesis method.•Co-doping of Pt and Pd induced smaller metal size and higher surface Pt(0) content.•The synergistic effect enhanced oxygen adsorption capacity and the reducibility.

The catalytic performances of Pt-Pd/MCM-41 bimetallic catalysts prepared by one-step synthesis method were investigated for total toluene oxidation in this paper. The experimental results demonstrated that Pt-Pd/MCM-41 was of superior catalytic activity comparing to the monometallic Pt/MCM-41 or Pd/MCM-41 catalysts with the same metallic content, yielding an almost 100% conversion at 180 °C. The following characterization results indicated that the bimetallic catalyst possessed a higher surface Pt(0) content and smaller doped metal size owing to the synergistic effect of the two noble metals, resulting in the improvement of oxygen adsorption capacity and the reducibility.

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Keywords
Pt-Pd/MCM-41; Noble metal; One-step synthesis method; Total toluene oxidation
First Page Preview
One-step synthesis of bimetallic Pt-Pd/MCM-41 mesoporous materials with superior catalytic performance for toluene oxidation
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 83, 5 August 2016, Pages 22–26
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis