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A facile surface passivation of hematite photoanodes with molybdate overlayers for efficient PEC water oxidation
xuesong
Author NameAffiliationE-mail
xuesong Tianjin University of Technology xuesong@ustc.edu.cn 
Abstract:
Hematite (?-Fe2O3) had been studied as photoanodes towards photo-electrochemical (PEC) water splitting for hydrogen. Molybdate was introduced to mediate hematite thin films via two synthesis routes (namely in-situ mediation and ex-situ modification). Through the in-situ mediation process, the morphology and film thickness could be changed significantly due to the addition of MoO42-, while for the ex-situ modification, the PEC performance of the hematite has been greatly improved by simply soaking in Na2MoO4 solution. Various characterizations such as UV-Vis absorption, scanning electronic microscopy, Mott-Schottky, electrochemical impedance spectroscopy were conducted and the PEC performances were investigated.
Key words:  Hematite film  Molybdate  Passivation  Water splitting  Photocurrent
FundProject:
A facile surface passivation of hematite photoanodes with molybdate overlayers for efficient PEC water oxidation
薛松
摘要:
Hematite (?-Fe2O3) had been studied as photoanodes towards photo-electrochemical (PEC) water splitting for hydrogen. Molybdate was introduced to mediate hematite thin films via two synthesis routes (namely in-situ mediation and ex-situ modification). Through the in-situ mediation process, the morphology and film thickness could be changed significantly due to the addition of MoO42-, while for the ex-situ modification, the PEC performance of the hematite has been greatly improved by simply soaking in Na2MoO4 solution. Various characterizations such as UV-Vis absorption, scanning electronic microscopy, Mott-Schottky, electrochemical impedance spectroscopy were conducted and the PEC performances were investigated.
关键词:  Hematite film  Molybdate  Passivation  Water splitting  Photocurrent
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