Catalytic wet oxidation of aqueous methylamine: comparative study on the catalytic performance of platinum-ruthenium, platinum, and ruthenium catalysts supported on titania

被引：4
作者：
Song, Aiying [1 ,2 ,3 ]
Lu, Gongxuan [1 ]
机构：
[1] Univ Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
[2] Gansu Inst Polit Sci & Law, Coll Publ Secur Technol, Lanzhou 730070, Peoples R China
[3] Phys Chem Lab Gansu Prov Ctr Dis Control & Preven, Lanzhou 730020, Peoples R China
来源：
ENVIRONMENTAL TECHNOLOGY | 2015年 / 36卷 / 09期
基金：
美国国家科学基金会;
关键词：
methylamine; Pt-Ru; CWAO; dispersion; TiO2; NOBLE-METAL CATALYSTS; AIR OXIDATION; SELECTIVE OXIDATION; AMMONIA; NITROGEN; RU; PT/TIO2; WATER; DEGRADATION; TIO2;
D O I：
10.1080/09593330.2014.982721
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Promotion of the dispersion of Ru species supported on TiO2 was achieved by introduction of Pt component and the role of Pt in enhancing the catalytic performances of Pt-Ru was investigated with catalytic wet air oxidation of methylamine used as a probing reaction. It was found that Pt-Ru/TiO2 displayed a much better catalytic performance compared with Pt/TiO2 and Ru/TiO2 catalysts due to having the highest dispersion of active species. Both high total organic carbon conversion and nitrogen selectivity (similar to 100%) over Pt-Ru/TiO2 catalyst were achieved at low temperature (200 degrees C). X-ray photoelectron spectroscopy characterization indicated that there were strong interactions between metal particles and the support, which may increase the catalytic performance of catalysts.
引用
收藏
页码：1160 / 1166
页数：7
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