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Direct ethanol fuel cells are one of the most promising electrochemical energy conversion devices for portable electronics and electric vehicles. Highly efficient and robust electrocatalysts for the ethanol oxidation reaction...

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The self-supported NiP nanosheet array electrode with enriched P vacancies and atomic-level Co doping is achieved by a controlled cation-exchange strategy excluding complicated chemical reactions and post-treatment steps. Such NiP nanoarray electrode exhibits excellent performance and long-term stability (over 500 h) for electrocatalytic water splitting at large current density, outperforming noble-metal catalysts in electrocatalytic hydrogen evolution reaction and oxygen evolution reaction.

Electrochemical CO2 reduction reaction (ECO2RR) driven by renewable electricity holds promise to store intermittent energy in chemical bonds while producing value-added chemicals and fuels sustainably. Unfortunately, it remains a grand...