화학공학소재연구정보센터
학회 한국재료학회
학술대회 2015년 가을 (11/25 ~ 11/27, 부산 해운대그랜드호텔)
권호 21권 2호
발표분야 C. 에너지 재료
제목 ZnO:WO3 composite as photoanode for photoelectrochemical water splitting
초록 We report ZnO:WO3 composite material as a photoelectrode for photoelectrochemical (PEC) water splitting. The ZnO and WO3 powder were mixed with 70:30 ratio in weight percent and heat-treated at 450 oC for 2 h in air. The UV-visible spectra measurements showed that ZnO:WO3 composite can improve light absorption in comparison to the pristine ZnO and WO3 powder. The morphology and properties of samples were characterized by SEM and XRD. The ZnO:WO3 composite materials produced a photocurrent density of ∼ 3 mA/cm2 at -0.87 V (vs SCE) in 0.5 M Na2SO4 solution under the illumination of simulated solar light (100 mW/cm2 from 150 W Xenon arc lamp source coupled with an AM 1.5G air mass filter). The solar-to-hydrogen efficiency was ∼ 2 %
저자 Nguyen Minh Hieu1, Dahye Kim2, Daae Ko3, Huyndong Lee4, Nguyen Duc Chinh5, Nguyen Duc Quang6, DoJinKim1, Truong Thi Hien2
소속 1Department of Materials Science and Engineering, 2Chungnam National Univ., 399 Daehang-no, 4Yuseong-gu, 5Daejeon, 6305-764 Republic of Korea
키워드 composite materials; photoelectrochemical(PEC); water splitting
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