Zr-Modified SBA-15 Supported Ni Catalysts with Excellent Catalytic Performance of CO Selective Methanation in H2-Rich Fuels

被引：17

作者：

Feng, Xiao ^{[1
]}

Dong, Chaojie ^{[1
]}

Ping, Dan ^{[1
]}

Geng, Jianming ^{[1
]}

Zhang, Jun ^{[2
]}

Dong, Xinfa ^{[1
]}

机构：

[1] South China Univ Technol, Sch Chem & Chem Engn, Guangdong Prov Key Lab Green Chem Prod Technol, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangzhou Starriss Tech Ltd, Guangzhou 510663, Guangdong, Peoples R China

来源：

CATALYSIS LETTERS | 2018年 / 148卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Ni catalysts; Zr modification; SBA-15; CO selective methanation; NI/SBA-15; CATALYSTS; ENHANCED ACTIVITY; AL CATALYSTS; NICKEL; GAS; CE;

D O I：

10.1007/s10562-018-2528-8

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：

CO selective methanation is a promising route for the purification of CO in H-2-rich gas for on-board H-2-based fuel cells. Herein, we synthesized a Zr-modified SBA-15 supported Ni catalyst, which exhibits both high catalytic performance, deep-removing CO concentration to below 10ppm with a selectivity higher than 50% in a very low-temperature range (170-220 degrees C), and long-term stability. The results of XRD, XPS, TPR, TPD and TEM characterizations reveal that the doping of Zr not only improves the dispersion of Ni species, enhances the CO adsorption, but also suppresses the CO2 adsorption, resulting in the prominent catalytic performance. [GRAPHICS] .

引用

页码：2967 / 2973

页数：7

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