Tuning of catalytic activity by thermoelectric materials for carbon dioxide hydrogenation

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dc.contributor.author Achour, Abdenour
dc.contributor.author Chen, Kan
dc.contributor.author Reece, Michael J.
dc.contributor.author Huang, Zhaorong
dc.date.accessioned 2017-10-18T08:52:15Z
dc.date.available 2017-10-18T08:52:15Z
dc.date.issued 2017-10-06
dc.identifier.citation Achour A, Chen K, Reece MJ, Huang Z, Tuning of catalytic activity by thermoelectric materials for carbon dioxide hydrogenation, Advanced Energy Materials, Vol. 8, Issue 5, 15 February 2018, Article number 1701430 en_UK
dc.identifier.issn 1614-6832
dc.identifier.uri http://dx.doi.org/10.1002/aenm.201701430
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/12651
dc.description.abstract An innovative use of a thermoelectric material (BiCuSeO) as a support and promoter of catalysis for CO2 hydrogenation is reported here. It is proposed that the capability of thermoelectric materials to shift the Fermi level and work function of a catalyst lead to an exponential increase of catalytic activity for catalyst particles deposited on its surface. Experimental results show that the CO2 conversion and CO selectivity are increased significantly by a thermoelectric Seebeck voltage. This suggests that the thermoelectric effect can not only increase the reaction rate but also change chemical equilibrium, which leads to the change of thermodynamic equilibrium for the conversion of CO2 in its hydrogenation reactions. It is also shown that this thermoelectric promotion of catalysis enables BiCuSeO oxide itself to have a high catalytic activity for CO2 hydrogenation. The generic nature of the mechanism suggests the possibility that many catalytic chemical reactions can be tuned in situ to achieve much higher reaction rates, or at lower temperatures, or have better desired selectivity through changing the backside temperature of the thermoelectric support. en_UK
dc.language.iso en en_UK
dc.publisher Wiley en_UK
dc.rights Attribution 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.subject Carbon dioxide hydrogenation en_UK
dc.subject Electrochemical energy en_UK
dc.subject Promotion of catalysis en_UK
dc.subject Thermoelectric materials en_UK
dc.subject Work function en_UK
dc.title Tuning of catalytic activity by thermoelectric materials for carbon dioxide hydrogenation en_UK
dc.type Article en_UK

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