Elucidating the Role of Mass Transfer in Electrochemical Redox Reactions on Electrospun Fibers

Abstract

Mass transfer can tune the surface concentration of reactants and products and subsequently influence the catalytic performance. The morphology of nanomaterials plays an important role in the mass transfer of reaction microdomains, but related studies are lacking. Herein, a facile electrospinning technique utilizing cellulose was employed to fabricate a series of carbon nanofibers with different diameters, which exhibited excellent electrochemical nitrate reduction reaction and oxygen evolution reaction activities. Furthermore, the microstructure of electrocatalysts could influence the gas–liquid–solid interfacial mass transfer, resulting in different electrochemical performances.

Graphical abstract

Keywords

Mass transfer / Electrospinning / Electrochemical nitrate reduction reaction / Oxygen evolution reaction

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