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dc.contributor.authorLiu, Guanyuen_US
dc.contributor.authorWong, William S. Y.en_US
dc.contributor.authorKraft, Markusen_US
dc.contributor.authorAger, Joel W.en_US
dc.contributor.authorVollmer, Dorisen_US
dc.contributor.authorXu, Rongen_US
dc.identifier.citationLiu, G., Wong, W. S. Y., Kraft, M., Ager, J. W., Vollmer, D. & Xu, R. (2021). Wetting-regulated gas-involving (photo)electrocatalysis: biomimetics in energy conversion. Chemical Society Reviews, 50(18), 10674-10699.
dc.description.abstract(Photo)electrolysis of water or gases with water to species serving as industrial feedstocks and energy carriers, such as hydrogen, ammonia, ethylene, propanol, etc., has drawn tremendous attention. Moreover, these processes can often be driven by renewable energy under ambient conditions as a sustainable alternative to traditional high-temperature and high-pressure synthesis methods. In addition to the extensive studies on catalyst development, increasing attention has been paid to the regulation of gas transport/diffusion behaviors during gas-involving (photo)electrocatalytic reactions towards the goal of creating industrially viable catalytic systems with high reaction rates, excellent long-term stabilities and near-unity selectivities. Biomimetic surfaces and systems with special wetting capabilities and structural advantages can shed light on the future design of (photo)electrodes and address long-standing challenges. This article is dedicated to bridging the fields of wetting and catalysis by reviewing the cutting-edge design methodologies of both gas-evolving and gas-consuming (photo)electrocatalytic systems. We first introduce the fundamentals of various in-air/underwater wetting states and their corresponding bioinspired structural properties. The relationship amongst the bubble transport behavior, wettability, and porosity/tortuosity is also discussed. Next, the latest implementations of wetting-related design principles for gas-evolving reactions (i.e. the hydrogen evolution reaction and oxygen evolution reaction) and gas-consuming reactions (i.e. the oxygen reduction reaction and CO2 reduction reaction) are summarized. For photoelectrode designs, additional factors are taken into account, such as light absorption and the separation, transport and recombination of photoinduced electrons and holes. The influences of wettability and 3D structuring of (photo)electrodes on the catalytic activity, stability and selectivity are analyzed to reveal the underlying mechanisms. Finally, remaining questions and related future perspectives are outlined.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofChemical Society Reviewsen_US
dc.rights© 2021 The Royal Society of Chemistry. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleWetting-regulated gas-involving (photo)electrocatalysis: biomimetics in energy conversionen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.subject.keywordsWater Oxidationen_US
dc.subject.keywordsOxygen Evolutionen_US
dc.description.acknowledgementThis work is supported by the eCO2EP programme funded by the Singapore National Research Foundation under its Campus for Research Excellence and Technological Enterprise (CREATE) programme through the Cambridge Centre for Advanced Research and Education in Singapore (CARES) and the Berkeley Educational Alliance for Research in Singapore (BEARS). W. S. Y. W and D. V. acknowledge the European Union’s Horizon 2020 research and innovation program LubISS No. 722497 and the ERC Advanced Grant (883631 DynaMo).en_US
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