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WFRF:(Ghamgosar Pedram 1979 )
 

Sökning: WFRF:(Ghamgosar Pedram 1979 ) > Electronically-Coup...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004369naa a2200541 4500
001oai:DiVA.org:ltu-73139
003SwePub
008190308s2019 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-731392 URI
0247 a https://doi.org/10.1021/acsanm.8b019362 DOI
040 a (SwePub)ltu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Leduc, Jenniferu University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germany4 aut
2451 0a Electronically-Coupled Phase Boundaries in α‑Fe2O3/Fe3O4 Nanocomposite Photoanodes for Enhanced Water Oxidation
264 c 2019-01-07
264 1b American Chemical Society (ACS),c 2019
338 a print2 rdacarrier
500 a Validerad;2019;Nivå 2;2019-03-13 (oliekm)
520 a Photoelectrochemical (PEC) water splittingreactions are promising for sustainable hydrogen productionfrom renewable sources. We report here, the preparation of α-Fe2O3/Fe3O4 composite films via a single-step chemical vapordeposition of [Fe(OtBu)3]2 and their use as efficient photoanode materials in PEC setups. Film thickness and phase segregation was controlled by varying the deposition time and corroborated through cross-section Raman spectroscopy and scanning electron microscopy. The highest water oxidationactivity (0.48 mA/cm2 at 1.23 V vs RHE) using intermittent AM 1.5 G (100 mW/cm2) standard illumination was found forhybrid films with a thickness of 11 μm. This phenomenon is attributed to an improved electron transport resulting from ahigher magnetite content toward the substrate interface and an increased light absorption due to the hematite layer mainly located at the top surface of the film. The observed high efficiency of α-Fe2O3/Fe3O4 nanocomposite photoanodes is attributed to the close proximity and establishment of 3D interfaces between the weakly ferro- (Fe2O3) and ferrimagnetic (Fe3O4) oxides, which in view of their differential chemical constitution andvalence states of Fe ions (Fe2+/Fe3+) can enhance the charge separation and thus the overall electrical conductivity of the layer.
650 7a TEKNIK OCH TEKNOLOGIERx Materialteknikx Kompositmaterial och -teknik0 (SwePub)205022 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Composite Science and Engineering0 (SwePub)205022 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Kemiteknikx Kemiska processer0 (SwePub)204012 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Chemical Engineeringx Chemical Process Engineering0 (SwePub)204012 hsv//eng
653 a solar water splitting
653 a valence dynamics
653 a magnetite
653 a Raman
653 a single-source CVD
653 a heterostructures
653 a Experimentell fysik
653 a Experimental Physics
653 a Chemical Technology
653 a Kemisk teknologi
7001 a Goenuellue, Yakupu University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germany4 aut
7001 a Ghamgosar, Pedram,d 1979-u Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)pedgha
7001 a You, Shujieu Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)youshu
7001 a Mouzon, Johanneu Luleå tekniska universitet,Kemiteknik4 aut0 (Swepub:ltu)johmou
7001 a Choi, Heechaeu University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germany4 aut
7001 a Vomiero, Albertou Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)albvom
7001 a Grosch, Matthiasu University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germany4 aut
7001 a Mathur, Sanjayu University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germany4 aut
7102 a University of Cologne, Institute of Inorganic Chemistry, University of Cologne, 50939, Cologne, Germanyb Materialvetenskap4 org
7730 t ACS APPLIED NANO MATERIALSd : American Chemical Society (ACS)g 2:1, s. 334-342q 2:1<334-342x 2574-0970
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73139
8564 8u https://doi.org/10.1021/acsanm.8b01936

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