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dc.contributor.authorSun, Zixuen_US
dc.contributor.authorWang, Guangjinen_US
dc.contributor.authorKoh, See Weeen_US
dc.contributor.authorGe, Junyuen_US
dc.contributor.authorZhao, Huen_US
dc.contributor.authorHong, Weien_US
dc.contributor.authorFei, Jipengen_US
dc.contributor.authorZhao, Yunxingen_US
dc.contributor.authorGao, Pingqien_US
dc.contributor.authorMiao, Heen_US
dc.contributor.authorLi, Hongen_US
dc.identifier.citationSun, Z., Wang, G., Koh, S. W., Ge, J., Zhao, H., Hong, W., . . . Li, H. (2020). Solar‐driven alkaline water electrolysis with multifunctional catalysts. Advanced Functional Materials, 30(27), 2002138-. doi:10.1002/adfm.202002138en_US
dc.description.abstractAlkaline water electrolysis (AWE) holds great promise for a truly sustainable energy future if it can be driven by renewable energy sources such as solar and wind. The main challenge arises from the serious partial loading issue when intermittent and unstable renewable energy is coupled to water electrolyzers. An energy storage device can mitigate this incompatibility between water electrolyzer and renewable energy sources. Herein, an AWE device driven by solar photovoltaic (PV) through a full cell of lithium-ion battery (LIB) as an energy reservoir is demonstrated (PV−LIB−AWE). Stable power output from LIB drives the water electrolyzer for steady hydrogen production, and thus overcomes the partial loading issue of AWE. Moreover, a multifunctional hierarchical material, porous nickel oxide decorated nitrogen-doped carbon (NC) support, with excellent electrochemical performances for LIBs, oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) for the PV−LIB−AWE system is developed. Density functional theory calculations show that the strong interaction between metal oxide and NC tailors the electronic structure and then optimizes activation energy of OER process. PV−LIB−AWE integrated system demonstrated here offers an alternative approach to drive water electrolysis with intermittent renewable energy for a truly sustainable energy future.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.relation.ispartofAdvanced Functional Materialsen_US
dc.rightsThis is the accepted version of the following article: Sun, Z., Wang, G., Koh, S. W., Ge, J., Zhao, H., Hong, W., . . . Li, H. (2020). Solar‐driven alkaline water electrolysis with multifunctional catalysts. Advanced Functional Materials, 30(27), 2002138-. doi:10.1002/adfm.202002138, which has been published in final form at This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [].en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleSolar-driven alkaline water electrolysis with multifunctional catalystsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.organizationCentre for Micro-/Nano-electronics (NOVITAS)en_US
dc.contributor.organizationCINTRA CNRS/NTU/THALESen_US
dc.description.versionAccepted versionen_US
dc.subject.keywordsIntegrated Systemen_US
dc.subject.keywordsMultifunctional Catalysten_US
dc.description.acknowledgementThis work was supported by Nanyang Technological University under NAP award (M408050000) and Singapore Ministry of Education Tier 1 program (2018-T1-001-051).en_US
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