| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-무기재료 |
| 제목 |
Disentangling Synergetic and Antagonistic Effects in the Synthesis of Novel Bifunctional Water Splitting Electrocatalysts |
| 초록 |
Tuning the bifunctional water splitting fingerprints toward H2 and O2 evolution through the design of architectures incorporating multiple functionalities is of increasing attention. Here, Ni- and Ru-based electrocatalysts with increasing Ni/Ru content ratios were designed through a one-step heat treatment at 250°C of ruthenate nanosheets, and NiCl2.6H2O and NaH2PO2.H2O precursors, under Ar. XPS measurements confirmed that incorporated narrow Ni-based moieties on the surface of the ruthenium substrate were swiftly oxidized to NiO, whereas larger Ni-based agglomerates at higher Ni/Ru ratios were less prone to oxidation. This size-dependent propensity of Ni2P to oxidation was shown to directly determine the OER performance of the resulting hybrids. Our results reflect the difficulty in the integration of multiple phases during the synthesis procedure and its effect on resulting catalytic behaviors. |
| 저자 |
Filipe Marques Mota, Chi Hun Choi, Ramireddy Boppella, Ji-Eun Lee, 김동하
|
| 소속 |
Ewha Womans Univ. |
| 키워드 |
Water Splitting; Electrocatalysts
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| E-Mail |
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