Hydroxyapatite-Supported Nickel(0) Nanoparticles: A Cost-Effective and Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Media
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, cilt.172, sa.4, 2025 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 172 Sayı: 4
- Basım Tarihi: 2025
- Doi Numarası: 10.1149/1945-7111/adcda0
- Dergi Adı: JOURNAL OF THE ELECTROCHEMICAL SOCIETY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Analytical Abstracts, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, Computer & Applied Sciences, INSPEC
- Anahtar Kelimeler: electrocatalyst, hydroxyapatite, nanoparticles, nickel, oxygen evolution reaction
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
Water splitting for hydrogen production is a crucial technology for sustainable energy alternatives. The oxygen evolution process (OER) poses a considerable problem owing to its sluggish kinetics. This study examines the electrocatalytic characteristics of hydroxyapatite-supported nickel nanoparticles (Ni/HAp) as a promising catalyst for OER in alkaline environments. Ni/HAp nanoparticles were made via a straightforward impregnation-reduction procedure, and their structural and electrochemical characteristics are analyzed using a combination of analytical techniques including X-ray diffraction, field-effect scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and electrochemical methods. The Ni/HAp electrocatalyst exhibits an onset potential of 1.61 V (vs RHE), an overpotential of 521 mV at a current density of 5 mA