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Title: Questioning the catalytic effect of Ni nanoparticles on CO2 hydration and the very need of such catalysis for CO2 capture by mineralization from aqueous solution
Authors: Ramsden, J.J.
Sokolov, Ilya J.
Malik, Danish J.
Issue Date: 2018
Publisher: ELSEVIER
Citation: RAMSDEN, J.J., SOKOLOV, I.J. and MALIK, D.J., 2018. Questioning the catalytic effect of Ni nanoparticles on CO2 hydration and the very need of such catalysis for CO2 capture by mineralization from aqueous solution. Chemical Engineering Science, 175, pp. 162-167.
Abstract: © 2017 Elsevier Ltd Recent publications claimed a significant catalytic effect of nickel nanoparticles on the hydration of CO 2 to carbonic acid. Others have claimed that such catalysis can significantly accelerate the overall process of CO 2 capture by mineralization to CaCO 3 from aqueous solution. Having repeated the experiments as closely as possible, we observed no catalytic effect of Ni nanoparticles. Numerical modelling revealed that hydration is not the slowest reaction in the chain ending with mineralization; hence its catalysis cannot have a significant effect on CaCO 3 formation.
Description: This paper is in closed access until 21st September 2018.
Sponsor: This work was supported by the financial support of VN Carbon Capture (Gas & Coal) Ltd, London.
Version: Accepted for publication
DOI: 10.1016/j.ces.2017.09.042
URI: https://dspace.lboro.ac.uk/2134/27200
Publisher Link: https://doi.org/10.1016/j.ces.2017.09.042
ISSN: 0009-2509
Appears in Collections:Closed Access (Chemical Engineering)

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