| 학회 | 한국화학공학회 |
| 학술대회 | 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 | 24권 1호, p.811 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Effect of tetravalent dopants on hematite nanostructure for enhanced photoelectrochemical water splitting |
| 초록 | Improvement of the electrical conductivity of semiconductor metal oxides is one of the most profound challenges in the development of high performance photoanodes for photoelectrochemical (PEC) water splitting. Hematite (α-Fe 2 O 3 ) is considered an ideal metal-oxide semiconductor photoanode for PEC applications, owing to its stability, suitable band gap (2.2 eV), low cost and non-toxic nature. However, pristine α-Fe 2 O 3 exhibits poor performance due to short hole diffusion lengths (2–4 nm) and low electron mobility. Doping of α-Fe 2 O 3 photoanodes has been extensively investigated to improve its photoelectrochemical properties. In this work, the influence of tetravalent dopants such as Si4+, Sn4+, Ti4+, and Zr4+ on the hematite (α-Fe 2 O 3 ) nanostructure for enhanced photoelectrochemical (PEC) water splitting are reported. The tetravalent doping was performed on hydrothermally grown akaganeite (β-FeOOH) nanorods on FTO (fluorine-doped tin-oxide) substrates via a simple dipping method for which the respective metal-precursor solution was used, followed by a high-temperature (800◦ C) sintering in a box furnace. |
| 저자 | 장점석 |
| 소속 | 전북대 |
| 키워드 | 촉매 및 반응공학 |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
