Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 한성환 | - |
dc.date.accessioned | 2018-07-27T02:21:42Z | - |
dc.date.available | 2018-07-27T02:21:42Z | - |
dc.date.issued | 2012-10 | - |
dc.identifier.citation | RSC Advances, 7 December 2012, 2(31), p.11808-11812 | en_US |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | http://pubs.rsc.org/en/Content/ArticleLanding/2012/RA/c2ra20828h#!divAbstract | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/73383 | - |
dc.description.abstract | We report a coordination chemistry approach for shape-controlled synthesis of α-Fe2O3 (hematite) nanostructures. Three distinct morphologies viz. nanoparticles, nanoparticle-chains and nanorods were synthesized from inorganic iron precursor sources of nitrate, sulfate and chloride, respectively, in the presence of urea as a pH regulating agent and were characterized by X-ray diffraction, scanning electron microscopy and Raman spectroscopy. The responsible growth mechanism and possible factors controlling the morphologies are explored. Photoelectrochemical cells constructed by utilizing these nanostructures produced stable photocurrents in iodide electrolyte. The nanoparticle-chains morphology of α-Fe2O3 revealed the highest photocurrent density of 0.36 mA cm−2 at 0 V bias conditions under 1 Sun illumination. The reason for the high performance is investigated with the help of impedance spectroscopy analysis, wherein the electrode composed of nanoparticle-chains affords the lowest charge transfer resistance and thereby the highest photoconversion yield, as compared to those of the nanoparticle and nanorod electrodes. | en_US |
dc.description.sponsorship | This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2008-314-D00107). This work was also supported by the KIST internal projects under contracts 2E20980. | en_US |
dc.language.iso | en | en_US |
dc.publisher | RSC Publishing | en_US |
dc.title | Photoelectrochemistry of solution processed hematite nanoparticles, nanoparticle-chains and nanorods | en_US |
dc.type | Article | en_US |
dc.relation.no | 31 | - |
dc.relation.volume | 2 | - |
dc.identifier.doi | 10.1039/C2RA20828H | - |
dc.relation.page | 11808-11812 | - |
dc.relation.journal | RSC ADVANCES | - |
dc.contributor.googleauthor | Patil, S. | - |
dc.contributor.googleauthor | Shinde, D. | - |
dc.contributor.googleauthor | Kim, E. k. | - |
dc.contributor.googleauthor | Lee, J. | - |
dc.contributor.googleauthor | Mane, R. | - |
dc.contributor.googleauthor | Han, S. H. | - |
dc.relation.code | 2012247462 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | shhan | - |
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