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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b01780
|2 doi
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|a pubmed24n0842.xml
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|a (DE-627)NLM252770196
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|a DE-627
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|a eng
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|a Nam, Ki Min
|e verfasserin
|4 aut
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|a Improved photoelectrochemical water oxidation by the WO3/CuWO4 composite with a manganese phosphate electrocatalyst
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 28.12.2015
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|a Date Revised 03.10.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We describe a composite of the n-type semiconductors for the photoelectrochemical oxygen evolution reaction (OER). A simple drop-casting technique of mixed precursors and a one-step annealing process were used in the synthesis of the WO3/CuWO4 composite. The composite showed improved photocurrent for water oxidation compared to either of the two compounds individually. We discuss possible electron-hole separation mechanisms in two semiconductors comprising a primary photon-absorbing semiconductor of CuWO4 with a secondary semiconductor of WO3. When the WO3/CuWO4 composite is simultaneously irradiated, the photogenerated hole from the WO3 valence band transfers to CuWO4, which results in an enhanced charge separation of CuWO4. Furthermore, the OER catalytic activity of manganese phosphate (MnPO) was compared to manganese oxide nanoparticles (Mn2O3) by electrochemical measurements, showing that the manganese phosphate was more efficient for the OER reaction. To investigate the effect of catalysts on semiconductors, manganese phosphate was deposited on the WO3/CuWO4 composite. The result demonstrates the promise of manganese phosphate for improving the photocurrent as well as the stability of the WO3/CuWO4 composite
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|a Journal Article
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|a Cheon, Eun Ah
|e verfasserin
|4 aut
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|a Shin, Won Jung
|e verfasserin
|4 aut
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| 700 |
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|a Bard, Allen J
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 31(2015), 39 vom: 06. Okt., Seite 10897-903
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:31
|g year:2015
|g number:39
|g day:06
|g month:10
|g pages:10897-903
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|u http://dx.doi.org/10.1021/acs.langmuir.5b01780
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