Plasma-modified graphitic C3N4@Cobalt hydroxide nanowires as a highly efficient electrocatalyst for oxygen evolution reaction

Heliyon. 2022 Nov 12;8(11):e11573. doi: 10.1016/j.heliyon.2022.e11573. eCollection 2022 Nov.

ABSTRACT

The key to electrocatalytic water splitting is the discovery of efficient, low-cost electrocatalysts for oxygen evolution reaction (OER). g-C3N4@Co(OH)2 + PA/X nanowire materials were prepared by a combined strategy of thermo-hydraulic and DBD plasma modification. The morphological structure of the plasma modification for 60 s was then characterised by SEM and TEM patterns. In alkaline media, the g-C3N4@Co(OH)2 catalyst subjected to 60-s plasma treatment had excellent durability and exhibited outstanding electrochemical performance, displaying a low overpotential (329 mV). The number of Co3+ active sites, high conductivity, and large surface area of the g-C3N4@Co(OH)2 + PA/60s catalyst contribute to the remarkable OER activity. This research offers a novel approach to rationally designing effective electrocatalysts for water splitting.

PMID:36411906 | PMC:PMC9674508 | DOI:10.1016/j.heliyon.2022.e11573

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