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dc.contributor.authorDong, Dehua
dc.contributor.authorXu, S.
dc.contributor.authorShao, Xin
dc.contributor.authorHucker, L.
dc.contributor.authorMarin, J.
dc.contributor.authorPham, T.
dc.contributor.authorXie, K.
dc.contributor.authorYe, Z.
dc.contributor.authorYang, P.
dc.contributor.authorYu, L.
dc.contributor.authorParkinson, G.
dc.contributor.authorLi, Chun-Zhu
dc.identifier.citationDong, D. and Xu, S. and Shao, X. and Hucker, L. and Marin, J. and Pham, T. and Xie, K. et al. 2017. Hierarchically ordered porous Ni-based cathode-supported solid oxide electrolysis cells for stable CO2 electrolysis without safe gas. Journal of Materials Chemistry A. 5 (46): pp. 24098-24102.

This study reported a hierarchically ordered porous Ni-based cathode of a solid oxide electrolysis cell to realise stable CO 2 electrolysis without the need of safe gas. The Ni/(Y 2 O 3 ) 0.08 (ZrO 2 ) 0.92 (YSZ) cathode support has a microchannel structure, which enabled efficient catalyst delivery to the reaction zone between the cathode and the electrolyte and resulted in facilitated gas diffusion through straight channels instead of the tortuous pores intrinsic to conventional porous electrodes. A catalyst network covering a Ni/YSZ scaffold reduced electrode polarisation resistance, prevented carbon formation and suppressed Ni oxidation. The facilitated gas diffusion diminished or eliminated concentration polarisation and carbon formation due to CO accumulation in the reaction zone. The novel hierarchical structure enables stable CO 2 electrolysis over conventional Ni-based cathodes with low capital and operational costs.

dc.publisherR S C Publications
dc.titleHierarchically ordered porous Ni-based cathode-supported solid oxide electrolysis cells for stable CO2 electrolysis without safe gas
dc.typeJournal Article
dcterms.source.titleJournal of Materials Chemistry A
curtin.departmentSchool of Electrical Engineering, Computing and Mathematical Science (EECMS)
curtin.accessStatusFulltext not available

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