Low Temperature Synthesis of Mesoporous γ-Alumina Supported Nickel Oxides and Their Catalytic Application for CO2 Methanation

DOI

10.2991/isesce-15.2015.24How to use a DOI?

Keywords

Low temperature, mesoporous -alumina, Nickel catalyst, CO2 methanation

Abstract

The mesoporous -alumina supported nickel oxides with different Ni/Al molar ratios (x = 0.05, 0.10, 0.125, 0.25, 0.50) have been prepared by a simple partial hydrolysis of aqueous solution of Al(NO3)3 and Ni(NO3)2 with (NH4)2CO3 without templates or organic surfactants at low calcination temperature of 400 oC. The as-prepared materials possessed wormhole-like mesoporous structures with large specific surface areas of 252–477 m2/g and narrow pore size distributions in the range of 3–4 nm. The specific surface areas and pore volumes of the materials gradually decreased with the increase in the Ni/Al molar ratio and the nickel species were highly dispersed in the materials. Among the catalysts tested for the methanation of CO2, the mesoporous -alumina supported nickel oxides with the Ni/Al molar ratios of 0.25 revealed the best catalytic performance and showed the similar catalyst activity to the counterpart with ordered mesoporous alumina supported nickel oxide synthesized through templating approach.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xingfu Shang
AU  - Digu Deng
AU  - Xueguang Wang
AU  - Xiujing Zou
AU  - Weizhong Ding
AU  - Xionggang Lu
PY  - 2015/12
DA  - 2015/12
TI  - Low Temperature Synthesis of Mesoporous γ-Alumina Supported Nickel Oxides and Their Catalytic Application for CO2 Methanation
BT  - Proceedings of the 2015 International Symposium on Energy Science and Chemical Engineering
PB  - Atlantis Press
SP  - 117
EP  - 123
SN  - 2352-5401
UR  - https://doi.org/10.2991/isesce-15.2015.24
DO  - 10.2991/isesce-15.2015.24
ID  - Shang2015/12
ER  -