| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-환경·에너지 |
| 제목 |
Solar hydrogen peroxide production on carbon nanotubes wired to titania nanorod arrays catalyzing As(III) oxidation |
| 초록 |
We present an off-grid, standalone electrocatalytic H2O2 production reaction (HPR) using carbon nanotubes (CNT) wired to hydrogen-treated TiO2 nanorod (h-TNR) arrays catalyzing the oxidation of As(III) to As(V) under simulated solar light (AM 1.5; 100 mW cm−2). Loading CNT onto acid-treated carbon paper (a-CP) significantly enhances the catalytic 2-electron transfer to O2, leading to a Faradaic efficiency (FE) of ∼100% for the HPR. To drive the HPR, the 2-electron oxidation of toxic As(III) to less toxic As(V) that accompanies the production of the proton/electron couples is achieved at an FE of ＞ 80% using the h-TNR arrays. The coupling of a mono-Si photovoltaic array was successfully drives the standalone operation of both reactions at the high FEs (＞ 90%). |
| 저자 |
최승요, 박현웅
|
| 소속 |
경북대 |
| 키워드 |
Artificial photosynthesis; Oxygen reduction reaction; Arsenic oxidation; Carbon electrode
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| E-Mail |
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