Tuning nanosheet Fe2O3 photoanodes with C3N4 and p-type CoOx decoration for efficient and stable water splitting
文献类型：期刊论文
| 作者 | Mei, Zongwei1; Li, Yehuan1; Yang, Xiaoyang1; Ren, Wenju1; Tong, Shengfu2; Zhang, Ning3; Zhao, Wenguang1; Lin, Yuan4; Pan, Feng1 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-06-21 |
| 卷号 | 8期号:12页码:3144-3150 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c8cy00729b |
| 英文摘要 | Fe2O3 photoanodes are ideal candidates for photoelectrochemical (PEC) water splitting. However, the charge recombination in the bulk and at the photoanode/electrolyte interface decreases their PEC performance. Here, C3N4 and p-type CoOx are firstly decorated on Fe2O3 nanosheets for PEC performance enhancement and mechanism study. The photocurrent densities of Fe2O3/C3N4 and Fe2O3/C3N4/CoOx photoanodes are about 1.6 and 2 times at 1.23 V vs. RHE (reversible hydrogen electrode) compared with that of the Fe2O3 film (0.74 mA cm(-2)) under simulated sun light irradiation. Correspondingly, their photocurrent onset potentials are negatively shifted by about 0.09 and 0.19 V compared with that of Fe2O3 (0.81 V-RHE). The solar-to-hydrogen conversion efficiency reaches 0.17% and the incident photo-to-current conversion efficiency (IPCE) achieves 81.7% at 385 nm for the Fe2O3/C3N4/CoOx hybrid photoanode. The matched band alignments between Fe2O3 and C3N4 result in more efficient charge separation, and the p-type CoOx cocatalyst reduces surface recombination and shows quicker water oxidation reaction kinetics at the semiconductor/electrolyte interface. |
| 语种 | 英语 |
| WOS记录号 | WOS:000435659500015 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42523]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Pan, Feng |
| 作者单位 | 1.Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China 2.Sun Yat Sen Univ, Sch Chem, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China 3.Cent S Univ, Dept Chem Mat, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 4.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mei, Zongwei,Li, Yehuan,Yang, Xiaoyang,et al. Tuning nanosheet Fe2O3 photoanodes with C3N4 and p-type CoOx decoration for efficient and stable water splitting[J]. CATALYSIS SCIENCE & TECHNOLOGY,2018,8(12):3144-3150. |
| APA | Mei, Zongwei.,Li, Yehuan.,Yang, Xiaoyang.,Ren, Wenju.,Tong, Shengfu.,...&Pan, Feng.(2018).Tuning nanosheet Fe2O3 photoanodes with C3N4 and p-type CoOx decoration for efficient and stable water splitting.CATALYSIS SCIENCE & TECHNOLOGY,8(12),3144-3150. |
| MLA | Mei, Zongwei,et al."Tuning nanosheet Fe2O3 photoanodes with C3N4 and p-type CoOx decoration for efficient and stable water splitting".CATALYSIS SCIENCE & TECHNOLOGY 8.12(2018):3144-3150. |
入库方式： OAI收割
来源：化学研究所
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