DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bak, Chang Hong | ko |
dc.contributor.author | Kim, Kwanghyun | ko |
dc.contributor.author | Jung, Kyoungok | ko |
dc.contributor.author | Kim, Jin-Baek | ko |
dc.contributor.author | Jang, Ji-Hyun | ko |
dc.date.accessioned | 2015-07-22T05:04:43Z | - |
dc.date.available | 2015-07-22T05:04:43Z | - |
dc.date.created | 2015-07-02 | - |
dc.date.created | 2015-07-02 | - |
dc.date.issued | 2014-11 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.41, pp.17249 - 17252 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | http://hdl.handle.net/10203/200047 | - |
dc.description.abstract | We report great enhancement in photoelectrochemical water splitting efficiency of hematite assisted by fast and easy transfer of electrons/holes via a 3D-nanoporous gold (3D-NG) electrode. 3D-nanostructured alpha-Fe2O3/NG electrodes were fabricated in three subsequent procedures, de-alloying Au/Ag to produce a conductive 3D-NG electrode, decorating nanocrystalline beta-FeOOH onto the nanopores of 3D-NG via a hydrothermal method, and converting beta-FeOOH into alpha-Fe2O3. alpha-Fe2O3/3D-NG exhibits a maximum photocurrent density of 1.6 mA cm(-2) at 1.5 V vs. RHE under AM 1.5 G simulated sunlight illumination via a photocatalytic hydrogen generation reaction, which is 2 times greater than that of the unmodified alpha-Fe2O3 photoanode. Incident photon-to-electron conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS) data confirm that alpha-Fe2O3/3D-NG suppresses electron-hole recombination. The excellent performance of nanostructured hematites on 3D-nanoporous metal electrodes makes them promising candidates as electrodes with maximum efficiency in water splitting. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HYDROGEN GENERATION | - |
dc.subject | GOLD | - |
dc.subject | ALPHA-FE2O3 | - |
dc.subject | PHOTOANODES | - |
dc.subject | OPTIMIZATION | - |
dc.subject | CATALYSIS | - |
dc.subject | OXIDATION | - |
dc.subject | OXIDE | - |
dc.title | Efficient photoelectrochemical water splitting of nanostructured hematite on a three-dimensional nanoporous metal electrode | - |
dc.type | Article | - |
dc.identifier.wosid | 000342763300003 | - |
dc.identifier.scopusid | 2-s2.0-84907658451 | - |
dc.type.rims | ART | - |
dc.citation.volume | 2 | - |
dc.citation.issue | 41 | - |
dc.citation.beginningpage | 17249 | - |
dc.citation.endingpage | 17252 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/c4ta03578j | - |
dc.contributor.localauthor | Kim, Jin-Baek | - |
dc.contributor.nonIdAuthor | Kim, Kwanghyun | - |
dc.contributor.nonIdAuthor | Jang, Ji-Hyun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | HYDROGEN GENERATION | - |
dc.subject.keywordPlus | GOLD | - |
dc.subject.keywordPlus | ALPHA-FE2O3 | - |
dc.subject.keywordPlus | PHOTOANODES | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | CATALYSIS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | OXIDE | - |
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