Transition metal-doped TiO2 nanowire catalysts for the oxidative coupling of methane

被引：43

作者：

Yunarti, Rika Tri ^{[1
,2
]}

Lee, Maro ^{[1
,3
]}

Hwang, Yoon Jeong ^{[1
,2
]}

Choi, Jae-Wook ^{[1
]}

Suh, Dong Jin ^{[1
,4
,5
]}

Lee, Jinwon ^{[6
]}

Kim, Ii Won ^{[3
]}

Ha, Jeong-Myeong ^{[1
,2
,5
]}

机构：

[1] Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul 136791, South Korea

[2] Univ Sci & Technol, Dept Clean Energy & Chem Engn, Taejon 305350, South Korea

[3] Soongsil Univ, Dept Chem Engn, Seoul 156743, South Korea

[4] Univ Sci & Technol, Dept Green Proc & Syst Engn, Taejon 305350, South Korea

[5] Korea Univ, Green Sch, Seoul 136701, South Korea

[6] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2014年 / 50卷

基金：

新加坡国家研究基金会;

关键词：

Oxidative coupling of methane; TiO2; nanowire; Transition metal doping; Ethylene; C-2; HYDROCARBONS; SURFACE BASICITY; MEMBRANE; ETHYLENE; LA2O3; GAS; PERFORMANCE; ACIDITY; ETHANE; OXIDES;

D O I：

10.1016/j.catcom.2014.02.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic oxidative coupling of methane (OCM) on transition metal-doped TiO2 nanowire catalysts was performed and the effects of metal dopants were studied. With transition metal doping, the electric and optical properties of nanowires were adjusted, which seemed to improve the catalytic activity and selectivity of the OCM reaction. A Mn-doped TiO2 nanowire catalyst exhibited the highest C-2 yield with the highest (ethylene)/(ethane) ratio because of its moderate oxidation activity, while a highly active Rh-doped TiO2 nanowire catalyst converted methane into fully oxidized CO and CO2. The electric conductivity assessed by UV-vis absorption represented the oxidation activity of the nanowire catalysts. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：54 / 58

页数：5

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