수산화인회석 기반 전기화학적 산소 발생을 위한 루테늄-코발트-칼슘 인산염 복합체 개발

초록

In this study, a ruthenium–cobalt–calcium phosphate composite (Ru-CCPC) film was electrochemically synthesized by utilizing the solid phase of hydroxyapatite (HAP) as a phosphate source. X-ray diffraction (XRD) analysis indicated that the diffraction patterns of HAP disappeared for both CCPC and Ru-CCPC, indicating their conversion into amorphous structures. Scanning electron microscopy (SEM) also confirmed that the original hexagonal morphology of HAP particles vanished and that uniform amorphous films were formed on the electrode surface in both samples. The Ru-CCPC film exhibited an approximately 21% higher current density than CCPC under neutral conditions. In addition, Ru-CCPC film showed durable OER stability for 20 h. These results demonstrate that the incorporation of ruthenium cation on HAP can enhance the OER activity of CCPC film without causing noticeable changes in its crystal structure or morphology. © 2026 The Korean Society of Industrial and Engineering Chemistry. All rights reserved.

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