Study on Reduction Behavior of Two-Component Fe-Mg-O Oxide System Prepared via a Sol-Gel Technique Full article
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487 |
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| Output data | Year: 2017, Volume: 42, Number: 52, Pages: 30543-30549 Pages count : 7 DOI: 10.1016/j.ijhydene.2017.11.036 | ||||||
| Tags | Characterization, Doping, Iron oxide, Nanostructured MgO, Reduction behavior | ||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0014 |
| 2 | Federal Agency for Scientific Organizations | 0303-2016-0002 |
| 3 | The Ministry of Education and Science of the Russian Federation | VIU-TOVPM-316/2017 |
Abstract:
Two-component Fesingle bondMgsingle bondO oxide system was prepared via sol-gel technique. An aqueous solution of iron nitrate was used to hydrolyze the magnesium methoxide instead of distilled water. The iron loading in a final sample was 15 wt% with respect to Fe2O3. The method was shown to provide a uniform distribution of iron oxide within MgO matrix. The sample was characterized by means of a low-temperature nitrogen adsorption and scanning electron microscopy. Reduction behavior of the sample was studied in a temperature-programmed regime using hydrogen as a reducing agent. In order to follow the possible phase transformations, the sample was examined by an in situ X-ray diffraction analysis in both reductive and oxidative atmospheres within the temperature range of 25–700 °C. It was found that after the first cycle of reduction/re-oxidation, the sample stabilizes in a novel state, and hydrogen uptake profiles of further cycles of reductive/oxidative treatment become completely reproducible. According to X-ray diffraction data, the sample consists of small particles (9 nm) of Fe3O4 phase well-dispersed within the structure of nanocrystalline MgO.
Cite:
Karnaukhov T.M.
, Vedyagin A.A.
, Cherepanova S.V.
, Rogov V.A.
, Stoyanovskii V.O.
, Mishakov I.V.
Study on Reduction Behavior of Two-Component Fe-Mg-O Oxide System Prepared via a Sol-Gel Technique
International Journal of Hydrogen Energy. 2017. V.42. N52. P.30543-30549. DOI: 10.1016/j.ijhydene.2017.11.036 WOS Scopus РИНЦ AN OpenAlex
Study on Reduction Behavior of Two-Component Fe-Mg-O Oxide System Prepared via a Sol-Gel Technique
International Journal of Hydrogen Energy. 2017. V.42. N52. P.30543-30549. DOI: 10.1016/j.ijhydene.2017.11.036 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Sep 1, 2017 |
| Accepted: | Nov 4, 2017 |
| Published online: | Nov 22, 2017 |
| Published print: | Dec 1, 2017 |
Identifiers:
| Web of science: | WOS:000418987800007 |
| Scopus: | 2-s2.0-85034740141 |
| Elibrary: | 31051920 |
| Chemical Abstracts: | 2017:1833925 |
| OpenAlex: | W2769901089 |