| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 |
27권 1호, p.693 |
| 발표분야 |
에너지 환경 |
| 제목 |
Co-modified Ni foam by pulse electrodeposition as a structured catalyst for hydrolysis of sodium borohydride |
| 초록 |
Structured cobalt-nickel catalysts for sodium borohydride hydrolysis (SBH) were synthesized by surface modification of a nickel foam with aluminum followed by cobalt electrodeposition. Cobalt electrodeposition was performed via chronoamperometry in an optimal voltage condition (−2.0 VAg/AgCl) to avoid a local cobalt dendritic deposition on the edge side of the substrate. Additionally, the pulsed electrodeposition technique with two voltage conditions where cobalt could be plated and dissolved was applied in an alternating manner to a porous nickel foam. The pulse technique was not only effective in reducing a cobalt particle size but also controlling the deposition amount of cobalt particles while maintaining improved catalytic performance by cobalt incorporation. As a consequence of the cobalt pulse electroplating, cobalt particles of about 147 nm were uniformly deposited on the porous nickel foam. The catalytic performance of the catalyst was increased by about 1.5 times compared to the porous nickel foam due to the effect of introducing cobalt particles even though deposited Co content is 0.57 wt.%. |
| 저자 |
이유진1, 민동수1, 서유나1, 김민규1, 조영석1, 정향수1, 손현태1, 윤창원1, 김광범2, 남석우1, 김용민1
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| 소속 |
1한국과학기술(연), 2연세대 |
| 키워드 |
에너지 |
| E-Mail |
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| 원문파일 |
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