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Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation
นักวิจัย : Xi, Lifei , Tran, Phong D. , Chiam, Sing Yang , Bassi, Prince Saurabh , Mak, Wai Fatt , Mulmudi, Hemant Kumar , Batabyal, Sudip Kumar , Barber, James , Loo, Say Chye Joachim , Wong, Lydia Helena
คำค้น : DRNTU::Engineering::Materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Xi, L., Tran, P. D., Chiam, S. Y., Bassi, P. S., Mak, W. F., Mulmudi, H. K., et al. (2012). Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation. Journal of physical chemistry C, 116(26), 13884-13889. , http://hdl.handle.net/10220/8307 , http://dx.doi.org/10.1021/jp304285r , 167173
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of physical chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this paper, we report a strategy to perform in-situ incorporation of oxygen evolution catalyst (OEC), Co3O4, during hydrothermal growth of Fe2O3 nanorod arrays. It was found that the highest photocurrent increase and onset potential shift was observed with 5% Co2+. The photocurrent density increases from 0.72 for the pristine Fe2O3 nanorod to 1.20 mA/cm2 at 1.23 V vs RHE (i.e. 67 % improvement) with 5 % Co2+ added. Concomitant with this improvement was a shift in the onset potential by about 40 mV and improvements in incident-photo-to-current-efficiencies (IPCE) and oxygen evolution. Hematite photoanodes with in-situ deposition of Co3O4 nanoparticles showed better performance than those prepared by ex-situ procedures because of high surface roughness, larger Co3O4/hematite interfacial area and smaller Co3O4 particle size.

บรรณานุกรม :
Xi, Lifei , Tran, Phong D. , Chiam, Sing Yang , Bassi, Prince Saurabh , Mak, Wai Fatt , Mulmudi, Hemant Kumar , Batabyal, Sudip Kumar , Barber, James , Loo, Say Chye Joachim , Wong, Lydia Helena . (2555). Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xi, Lifei , Tran, Phong D. , Chiam, Sing Yang , Bassi, Prince Saurabh , Mak, Wai Fatt , Mulmudi, Hemant Kumar , Batabyal, Sudip Kumar , Barber, James , Loo, Say Chye Joachim , Wong, Lydia Helena . 2555. "Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xi, Lifei , Tran, Phong D. , Chiam, Sing Yang , Bassi, Prince Saurabh , Mak, Wai Fatt , Mulmudi, Hemant Kumar , Batabyal, Sudip Kumar , Barber, James , Loo, Say Chye Joachim , Wong, Lydia Helena . "Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Xi, Lifei , Tran, Phong D. , Chiam, Sing Yang , Bassi, Prince Saurabh , Mak, Wai Fatt , Mulmudi, Hemant Kumar , Batabyal, Sudip Kumar , Barber, James , Loo, Say Chye Joachim , Wong, Lydia Helena . Co3O4-decorated hematite nanorods as an effective photoanode for solar water oxidation. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.