| Autor: |
Zohreh Masoumi, Mahdi Tayebi, S. Ahmad Masoumi Lari, Bongkuk Seo, Choong-Sun Lim, Hyeon-Gook Kim, Daeseung Kyung, Meysam Tayebi |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Inorganics, Vol 11, Iss 4, p 147 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2304-6740 |
| DOI: |
10.3390/inorganics11040147 |
| Popis: |
Photoelectrochemical (PEC) water splitting is an eco-friendly method for producing clean and sustainable hydrogen fuels. Compared with the fabrication of solar hydrogen using n-type metal oxide semiconductor photoanodes, that of solar hydrogen using p-type metal oxide semiconductor photocathodes has not been researched as thoroughly. Therefore, this study investigated the effect of drop casting time on the PEC performance of a prepared CuBi2O4 photocathode. XPS, HRTEM, UV-DRS, Raman spectroscopy, XRD, and SEM analyses were used to characterize the prepared CuBi2O4 photocathode. Owing to the high charge separation and transfer, the photocurrent density of the CuBi2O4 photocathode was ~0.6 mA cm−2 at 0.3 V vs. RHE. The nanoporous CuBi2O4 photocathode exhibited a high photocurrent density of up to 1.2 mA cm−2 at 0.3 V vs. RHE with H2O2 as a sacrificial agent. Mott–Schottky and impedance measurements were also performed on the CuBi2O4 photocathode to estimate its acceptor density and charge-transfer resistance. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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