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Yolk-Shell structured NiCo@SiO₂ nanoreactor for CO₂ upgrading via reverse water-gas shift reaction

Price, Cameron Alexander Hurd, Pastor-Perez, Laura, Ramirez Reina, Tomas and Liu, Jian (2020) Yolk-Shell structured NiCo@SiO₂ nanoreactor for CO₂ upgrading via reverse water-gas shift reaction Catalysis Today.

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Abstract

This work reports the successful and simplistic synthesis of highly uniform NiCo@SiO₂ yolk@shell catalysts, with their effectiveness towards CO₂ recycling investigated within the RWGS reaction. The engineered microstructure catalysts display high CO₂ conversion levels and a remarkable selectivity for CO as main reaction product across the whole examined temperatures. Interestingly, the selectivity is affected by Ni loading reflecting a close correlation catalytic performance/material structure-composition. Further to this behaviour, the designed nanoreactor exhibits considerable deactivation resistance and performance under reaction cycling conditions and appears to demonstrate the production of larger organic molecules after qualitative analysis of the product gas by mass spectrometry. These results demonstrate the effectiveness of the spatial confinement effect, imbued to the material from its advanced morphology, through its influence of deactivation resistance and control of reactive selectivity.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Price, Cameron Alexander Hurdc.a.price@surrey.ac.uk
Pastor-Perez, Laural.pastorperez@surrey.ac.uk
Ramirez Reina, Tomast.ramirezreina@surrey.ac.uk
Liu, Jianjian.liu@surrey.ac.uk
Date : 28 September 2020
Funders : University of Surrey, Engineering and Physical Sciences Research Council (EPSRC), Royal Society
DOI : 10.1016/j.cattod.2020.09.018
Copyright Disclaimer : © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Yolk@shell; Encapsulation; Low temperature RWGS; Spatial confinement; Coking/sintering resistant
Depositing User : Clive Harris
Date Deposited : 07 Oct 2020 14:13
Last Modified : 07 Oct 2020 14:13
URI: http://epubs.surrey.ac.uk/id/eprint/858701

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