Issue 30, 2014
From the journal:

RSC Advances

Enhancement of Pt–Ru catalytic activity for catalytic wet air oxidation of methylamine via tuning the Ru surface chemical state and dispersion by Pt addition†

Aiying Songabc  and  Gongxuan Lu*a  

* Corresponding authors

a State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
E-mail: gxlu@lzb.ac.cn
Fax: +86 931 4968178

b Chemical Physics Laboratory of Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, P. R. China

c University of Chinese Academy of Science, Beijing 10080, P. R. China

Abstract

The enhancement of Pt–Ru catalytic activity for catalytic wet air oxidation (CWAO) of methylamine (MA) was achieved by addition of Pt to Ru catalyst. Pt addition improved the catalytic activity of the bimetallic catalyst due to tuning the Ru surface chemical state and the dispersion of active species. MA was totally mineralized at 200 °C over the Pt–Ru catalyst, while the temperatures required for total mineralization of MA over Pt and Ru catalysts were 240 and 210 °C, respectively. XPS results revealed that addition of Pt could promote the formation of metallic Ru meanwhile TEM and CO chemisorption results confirmed that the addition of Pt promoted the dispersion of active species in the bimetallic catalyst.

Graphical abstract: Enhancement of Pt–Ru catalytic activity for catalytic wet air oxidation of methylamine via tuning the Ru surface chemical state and dispersion by Pt addition

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Article information

DOI
https://doi.org/10.1039/C4RA00646A
Article type
Paper
Submitted
22 Jan 2014
Accepted
10 Mar 2014
First published
14 Mar 2014

RSC Adv., 2014,4, 15325-15331

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Enhancement of Pt–Ru catalytic activity for catalytic wet air oxidation of methylamine via tuning the Ru surface chemical state and dispersion by Pt addition

A. Song and G. Lu, RSC Adv., 2014, 4, 15325 DOI: 10.1039/C4RA00646A

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