Supported Cobalt Nanorod Catalysts for Carbon Dioxide Hydrogenation

被引：17

作者：

Jimenez, Juan ^{[1
]}

Bird, Ashley ^{[2
]}

Santiago, Maryorie Santos ^{[3
]}

Wen, Cun ^{[1
]}

Lauterbach, Jochen ^{[1
]}

机构：

[1] Univ South Carolina, Dept Chem Engn, 541 Main St, Columbia, SC 29208 USA

[2] Univ Texas Austin, McKetta Dept Chem Engn, 200 E Dean Keeton St, Austin, TX 78712 USA

[3] Univ Puerto Rico, Dept Chem Engn, Pr-108 KM 1-1, Mayagfez, PR 00681 USA

来源：

ENERGY TECHNOLOGY | 2017年 / 5卷 / 06期

基金：

美国国家科学基金会;

关键词：

cobalt; facet control; hydrogenation; interfaces; supported catalysts;

D O I：

10.1002/ente.201600575

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To create new CO2 hydrogenation catalysts, we developed a methodology in which the selective surface faceting of nanorods is combined with the practicality of a supported catalyst. The basic Co catalyst with preferential {110} surface faceting was supported with either SiO2, Al2O3, or TiO2. We grafted charged ligands onto the Co nanorods to attract the support precursors to the surface of the Co to allow a large contact area between the Co and the support. The large contact area promoted the chemical interaction between the Co and the support, which was verified by using Raman spectroscopy, XRD, and temperature-programmed reduction. TiO2- and Al2O3-supported Co nanorods showed an increase in activity at low and high reaction temperatures, respectively, whereas the relatively inert SiO2-supported nanorods possessed the same catalytic performance as unsupported

引用

页码：884 / 891

页数：8

共 90 条

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