An iron phosphate hydroxide hydrate electrocatalyst: synergistic effects of Fe<sup>2+</sup> and Fe<sup>3+</sup> for enhanced hydrogen evolution reaction stability
Jeygeerthika ReddyDepartment of Electrical and Electronics Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of KoreaVivekanandan RamanSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, South KoreaK. K. ViswanathanDepartment of Mathematical Modeling, Faculty of Mathematics, Samarkand State University, Samarkand, 140104, UzbekistanKandasamy PrabakarDepartment of Electrical and Electronics Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea
ABI
Аннотация
Synthesized via unique electrodeposition, Fe 3 (PO 4 )(OH) 6 ·3H 2 O HER catalyst, with varied ratios, boasts enriched Fe 3+ /Fe 2+ sites. In 1 M KOH, it excels with a low 130 mV overpotential, 87 mV dec −1 Tafel value, and 80 hour durability at 100 mA cm −2 .
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