화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU))
권호 20권 2호
발표분야 환경에너지_포스터
제목 Effect of Tetravalent Dopants on Hematite Nanostructure for Efficient Solar Water Splitting
초록 Tetravalent doping was performed on hydrothermally grown akaganeite (β-FeOOH) nanorods on FTO (Fluorine doped Tin Oxide) substrates by simple dipping method using respective metal precursor solution, followed by high temperature (800 °C) sintering. Photocurrent density for pristine (α-Fe2O3) photoanode was ~0.81 mA/cm2 at 1.23 VRHE. Si4+ doped photoanode shows slight increment in photocurrent with no change in the onset potential than pristine photoanode. However Sn4+ and Ti4+ doped photoanode shows an anodic shift in onset potential with an increment in photocurrent. Interestingly, Zr4+ doped photoanode exhibit a similar onset potential like pristine.

 This work was supported by the BK21 plus program through the National Research Foundation (NRF) funded by the Ministry of Education of Korea
저자 Arunprabaharan Subramanian1, 박진우1, Eduardo Gracia-Espino2, Alagappan Annamalai2, 이현휘3, 이수영3, 최선희3, 장점석1
소속 1전북대, 2Umea Univ., 3포항가속기(연)
키워드 water splitting; hematite; akaganeite; sintering; nanorods; onset potential
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