Sample preparation and electrochemical data of Co3O4 working electrode for seawater splitting

Abstract

In this data article, we presented the electrochemical data of the working electrode made of Co3O4 semi-transparent film. Electrochemically stable, porous nature of Kirkendall-diffusion grown Co3O4 films were applied to generate hydrogen from the seawater splitting (Patel et al., 2017) [1]. The data presented in this article includes the photograph of prepared samples, polarization curves for water oxidation and Tafel plot, linear sweep voltammetry measurements under the pulsed light condition in 0.1 M Na2S2O3 electrolyte, and transient photoresponses with natural sea water. Moreover, seawater splitting using the Co3O4 working electrode is demonstrated.

A brush-like Cu2O–CoO core–shell nanoarray: an efficient bifunctional electrocatalyst for overall seawater splitting

“…[15][16][17] In particular, Co-based oxides, as one of the TMOs, have been widely studied because of their high OER performance and easy preparation. [18][19][20][21][22][23] Nevertheless, further optimizing the Co-based oxides to improve the catalytic activity and achieve the bifunctional features of the HER and OER is also necessary. As reported, the structure of an electrocatalyst material is crucial for regulating the catalytic performance, and electrocatalysts with hierarchical structures exhibit significantly improved catalytic activity in electrocatalysis when compared with single parts.…”