Nitridation-free preparation of bimetallic oxide-nitride bifunctional electrocatalysts for overall water splitting

Sulakshana Shenoy; Chitiphon Chuaicham; Keiko Sasaki; Sungkyun Park; Muthuchamy Nallal; Kang Hyun Park; Karthikeyan Sekar

doi:10.1039/d3cc03452f

Nitridation-free preparation of bimetallic oxide-nitride bifunctional electrocatalysts for overall water splitting

Chem Commun (Camb). 2023 Oct 17;59(83):12451-12454. doi: 10.1039/d3cc03452f.

Authors

Sulakshana Shenoy¹, Chitiphon Chuaicham¹, Keiko Sasaki¹, Sungkyun Park², Muthuchamy Nallal^{2

3}, Kang Hyun Park³, Karthikeyan Sekar⁴

Affiliations

¹ Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan. keikos@mine.kyushu-u.ac.jp.
² Department of Physics, Pusan National University, Busan 46241, Republic of Korea. muthuchamyn89@gmail.com.
³ Department of Chemistry, Pusan National University, Busan 46241, Republic of Korea. chemistry@pusan.ac.kr.
⁴ Sustainable Energy and Environmental Research Laboratory, Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India. karthiks13@srmist.edu.in.

PMID: 37781773
DOI: 10.1039/d3cc03452f

Abstract

A novel one-pot surfactant-free synthesis is presented for designing bimetallic oxide-nitride electrocatalysts with tunable morphologies using metal salts and nitrogen-rich precursors. This innovative approach eliminates the need for a distinct nitridation process. Bifunctional electrode Co₃O₄/MoO₃/Mo_xN_y achieved a current density of 10 mA cm^-2 while maintaining a cell voltage of 1.52 V, outperforming many bimetallic oxide-nitride catalysts in the scientific literature.