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Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods
dc.creator | Krehula, Stjepko | |
dc.creator | Ristić, Mira | |
dc.creator | Mitar, Ivana | |
dc.creator | Wu, Chuchu | |
dc.creator | Li, Xuning | |
dc.creator | Jiang, Luhua | |
dc.creator | Wang, Junhu H. | |
dc.creator | Sun, Gongquan | |
dc.creator | Zhang, Tao | |
dc.creator | Perović, Marija M. | |
dc.creator | Bošković, Marko | |
dc.creator | Antić, Bratislav | |
dc.creator | Musić, Svetozar | |
dc.date.accessioned | 2019-05-07T12:50:24Z | |
dc.date.available | 2019-05-07T12:50:24Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0011-1643 | |
dc.identifier.issn | 1334-417X | |
dc.identifier.uri | https://hrcak.srce.hr/file/309798 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/8100 | |
dc.description.abstract | Ni-doped goethite (α-FeOOH) nanorods were synthesized from mixed Fe(III)-Ni(II) nitrate solutions with various Ni/(Ni+Fe) ratios (0, 5, 10, 20, 33 and 50 mol % Ni) by hydrothermal precipitation in a highly alkaline medium using the strong organic alkali, tetramethylammonium hydroxide (TMAH). Ni-doped hematite (α-Fe2O3) nanorods were obtained by calcination of Ni-doped goethite nanorods at 400 °C. The Ni 2+ -for-Fe 3+ substitution in goethite and hematite was confirmed by determination of the unit cell expansion (due to the difference in the ionic radii of Fe 3+ and Ni 2+ ) using XRPD and determination of the reduction of a hyperfine magnetic field (due to the difference in magnetic moments of Fe 3+ and Ni 2+ ) using Mössbauer spectroscopy. Single-phase goethite nanorods were found in samples containing 0 or 5 mol % Ni. A higher Ni content in the precipitation system (10 mol % or more) resulted in a higher Ni 2+ -for-Fe 3+ substitution in goethite, and larger Ni-doped goethite nanorods, though with the presence of low crystalline Ni-containing ferrihydrite and Ni ferrite (NiFe2O4) as additional phases. Significant changes in FT-IR and UV-Vis-NIR spectra of prepared samples were observed with increasing Ni content. Electrochemical measurements of samples showed a strong increase in oxygen evolution reaction (OER) electrocatalytic activity with increasing Ni content. © 2018 Croatian Chemical Society. All Rights Reserved. | en |
dc.language.iso | en | |
dc.relation | Croatian Science Foundation [IP-2016-06-825] | |
dc.relation | SAFU [KK.01.1.1.01.0001] | |
dc.relation | Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030104] | |
dc.relation | Natural Science Foundation of China [21576258] | |
dc.relation | Natural Science Foundation of China [21476232] | |
dc.relation | Bilateral Croatian-Chinese scientific project “Iron oxide nanostructures for environmental and energy applications” | |
dc.relation | Bilateral Croatian-Serbian scientific project “Nanostructured iron oxides for environmental applications” | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Croatica Chemica Acta | |
dc.subject | alpha-FeOOH | en |
dc.subject | alpha-Fe2O3 | en |
dc.subject | Ni doping | en |
dc.subject | XRPD | en |
dc.subject | Mossbauer spectroscopy | en |
dc.subject | FE-SEM | en |
dc.subject | OER | en |
dc.title | Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods | en |
dc.type | article | en |
dc.rights.license | BY | |
dcterms.abstract | Aнтић, Братислав; Мусић, Светозар; Митар, Ивана; Wу, Цхуцху; Јианг, Лухуа; Wанг, Јунху; Сун, Гонгqуан; Зханг, Тао; Перовић, Марија; Крехула, Стјепко; Ристић, Мира; Ли, Xунинг; Бошковић, Марко; | |
dc.rights.holder | © 2018 Croatian Chemical Society | |
dc.citation.volume | 91 | |
dc.citation.issue | 3 | |
dc.citation.spage | 389 | |
dc.citation.epage | 401 | |
dc.identifier.wos | 000456043500011 | |
dc.identifier.doi | 10.5562/cca3402 | |
dc.citation.rank | M23 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85062707409 | |
dc.identifier.fulltext | https://vinar.vin.bg.ac.rs//bitstream/id/11210/cca3402.pdf |
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