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Diverse morphologies of zinc oxide nanoparticles and their electrocatalytic performance in hydrogen production

Journal of Energy Chemistry 2021年第5期30卷 162-170页

作者： Veronica M.Sofianos Junqiao Lee Debbie S.Silvester pralok k.samanta Mark Paskevicius Niall J.English Craig E.Buckley Department of Physics and Astronomy Fuels and Energy Technology InstituteCurtin UniversityPerthBentley 6102Australia University College Dublin School of Chemical and Bioprocess EngineeringBelfieldDublin 4Ireland Curtin Institute for Functional Moleailes and Interfaces School of Molecular and Life SciencesCurtin UniversityPerthBentley 6102Australia

Hydrogen is considered an attractive alternative to fossil fuels,but only a small amount of it is produced from renewable energy,making it not such a clean energy carrier after *** hydrogen through water electrolysis is promising,but using a cost-effective and high-performing catalyst that has longterm stability is still a *** study exploits,for the first time,the potential of zinc oxide nanoparticles with diverse morphologies as catalysts for the electrocatalytic production of hydrogen from *** morphology of the nanoparticles(wires,cuboids,spheres)was easily regulated by changing the concentration of sodium hydroxide,used as the shape controlling agent,during the *** spherical morphology exhibited the highest electrocatalytic activity at the lowest potential *** spherical nanoparticles had the highest number of oxygen vacancies and lowest particle size compared to the other two morphologies,features directly linked to high catalytic ***,the nanowires were much more stable with repeated ***-functional theory showed that the presence of oxygen vacancies in all three morphologies led to diminished band gaps,which is of catalytic interest.

关键词： ZnO nanoparticles Nanocatalysts Electrocatalysis Hydrogen production Water splitting

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