scholarly journals Role of oxide support in Ni based catalysts for CO2 methanation

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17648-17657
Author(s):  
Ye Hwan Lee ◽  
Jeong Yoon Ahn ◽  
Dinh Duc Nguyen ◽  
Soon Woong Chang ◽  
Sung Su Kim ◽  
...  

The effect of metal–support interaction and role of support on catalytic performances during Ni based CO2 methanation reaction were investigated.

2016 ◽  
Vol 344 ◽  
pp. 90-99 ◽  
Author(s):  
E.V. Golubina ◽  
E.S. Lokteva ◽  
A.V. Erokhin ◽  
A.A. Veligzhanin ◽  
Ya.V. Zubavichus ◽  
...  

2017 ◽  
Vol 19 (6) ◽  
pp. 4199-4207 ◽  
Author(s):  
Catherine K. S. Choong ◽  
Luwei Chen ◽  
Yonghua Du ◽  
Martin Schreyer ◽  
S. W. Daniel Ong ◽  
...  

Effect of metal–support interaction on the generation of Rh–FexOy active sites is investigated via various in situ techniques.


2021 ◽  
Vol 16 (3) ◽  
pp. 641-650
Author(s):  
Athirah Ayub ◽  
Hasliza Bahruji ◽  
Abdul Hanif Mahadi

The activity of reducible metal oxide Sm2O3, CeO2, and ZnO as Ni nanoparticles support was investigated for CO2 methanation reaction. CO2 methanation was carried out between 200 °C to 450 °C with the optimum catalytic activity was observed at 450 °C. The reducibility of the catalysts has been comparatively studied using H2-Temperature Reduction Temperature (TPR) method. The H2-TPR analysis also elucidated the formation of surface oxygen vacancies at temperature above 600 °C for 5Ni/Sm2O3 and 5Ni/CeO2. The Sm2O3 showed superior activity than CeO2 presumably due to the transition of the crystalline phases under reducing environment. However, the formation of NiZn alloy in 5Ni/ZnO reduced the ability of Ni to catalyze methanation reaction. A highly dispersed Ni on Sm2O3 created a large metal/support interfacial interaction to give 69% of CO2 conversion with 100% selectivity at 450 °C. The 5Ni/Sm2O3 exhibited superior catalytic performances with an apparent phase transition from cubic to a mixture of cubic and monoclinic phases over a long reaction, presumably responsible for the enhanced conversion after 10 h of reaction. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 


2014 ◽  
Vol 488 ◽  
pp. 138-147 ◽  
Author(s):  
Vesna Havran Mueller ◽  
Milorad P. Duduković ◽  
Cynthia S. Lo

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