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Updated: Jun 9, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Archipelago-like oxygen-vacancies-enriched amorphous-crystalline heterointerface for enhanced water splitting
Qingcui Liu1, Wenhua Cheng2, Weilu Zhang1
1State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China.
Abstract:
Advancing the development of proficient bifunctional water splitting electrocatalysts and deciphering the underlying drivers of their performance are pivotal for accelerating the sustainable hydrogen energy sector. In this study, a novel Fe and P dual-doped cobalt molybdate electrocatalyst (P-FCMO@NF) is engineered in-situ on a nickel foam substrate that induces an archipelago-like amorphous-crystalline heterointerface as well as abundant oxygen vacancies (VO) on the near-surface, in favor of the electron transport and enhancing the water splitting capability respectively. Consequently, P-FCMO@NF exhibits excellent electrocatalytic performance in 1 M KOH solution. The water splitting device shows an ultra-low work voltage of merely 1.55 V at a current density of 10 mA cm-2 and demonstrates a long-term stability. The correlations between microstructural reconfiguration and sustainable electrocatalytic stability of P-FCMO@NF are deeply explored and verified. The work actually offers valuable insights that form a crucial foundation for the strategic design of innovative bifunctional electrocatalysts.
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