The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption
Sorption and subsequent desorption of hydrogen by graphene oxide powder which was thermally redu-ced at temperatures of 200, 300, 500, 700 and 900 °С were investigated in 9-290 K temperature interval. The resulting dependence of the quantity of adsorbed hydrogen on the reduction temperature had a no...
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Sumy State University
2015-06-01
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| Series: | Журнал нано- та електронної фізики |
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| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2015/2/articles/jnep_2015_V7_02008.pdf |
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| author | A.V. Dolbin V.B. Esel’son V.G. Gavrilko N.A. Vinnikov R.M. Basnukaeva M.V. Khlistuck W. Maser A. Benito |
| author_facet | A.V. Dolbin V.B. Esel’son V.G. Gavrilko N.A. Vinnikov R.M. Basnukaeva M.V. Khlistuck W. Maser A. Benito |
| author_sort | A.V. Dolbin |
| collection | DOAJ |
| description | Sorption and subsequent desorption of hydrogen by graphene oxide powder which was thermally redu-ced at temperatures of 200, 300, 500, 700 and 900 °С were investigated in 9-290 K temperature interval. The resulting dependence of the quantity of adsorbed hydrogen on the reduction temperature had a nonmonotonic character. The maximum values of the quantity of sorbed hydrogen were observed for the samples reduced at temperatures of 300 and 900 °С. It was assumed that the increase in the sorption ability of the samples reduced at 300 °C is due to the disordering of the layered structure of graphene oxide by removing the intercalated water. Heat treatment at 900 °C also increased the sorption capacity of the sample due to the formation of multiple defects of carbon surfaces by removing oxygen-containing groups. |
| format | Article |
| id | doaj-art-c853900c2dfb40e894c5736d01d1a5fd |
| institution | OA Journals |
| issn | 2077-6772 |
| language | English |
| publishDate | 2015-06-01 |
| publisher | Sumy State University |
| record_format | Article |
| series | Журнал нано- та електронної фізики |
| spelling | doaj-art-c853900c2dfb40e894c5736d01d1a5fd2025-08-20T02:19:44ZengSumy State UniversityЖурнал нано- та електронної фізики2077-67722015-06-017202008-102008-4The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen SorptionA.V. Dolbin0V.B. Esel’son1V.G. Gavrilko2N.A. Vinnikov3R.M. Basnukaeva4M.V. Khlistuck5W. Maser6A. Benito7B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineB. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineB. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineB. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineB. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineB. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47, Lenin Ave., 61103 Kharkov, UkraineInstituto de Carboquímica, 4 Miguel Luesma Castán, E-50018 Zaragoza, SpainInstituto de Carboquímica, 4 Miguel Luesma Castán, E-50018 Zaragoza, SpainSorption and subsequent desorption of hydrogen by graphene oxide powder which was thermally redu-ced at temperatures of 200, 300, 500, 700 and 900 °С were investigated in 9-290 K temperature interval. The resulting dependence of the quantity of adsorbed hydrogen on the reduction temperature had a nonmonotonic character. The maximum values of the quantity of sorbed hydrogen were observed for the samples reduced at temperatures of 300 and 900 °С. It was assumed that the increase in the sorption ability of the samples reduced at 300 °C is due to the disordering of the layered structure of graphene oxide by removing the intercalated water. Heat treatment at 900 °C also increased the sorption capacity of the sample due to the formation of multiple defects of carbon surfaces by removing oxygen-containing groups.http://jnep.sumdu.edu.ua/download/numbers/2015/2/articles/jnep_2015_V7_02008.pdfGraphene oxideThermal reductionHydrogen sorptio |
| spellingShingle | A.V. Dolbin V.B. Esel’son V.G. Gavrilko N.A. Vinnikov R.M. Basnukaeva M.V. Khlistuck W. Maser A. Benito The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption Журнал нано- та електронної фізики Graphene oxide Thermal reduction Hydrogen sorptio |
| title | The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption |
| title_full | The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption |
| title_fullStr | The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption |
| title_full_unstemmed | The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption |
| title_short | The Effect of Reduction Temperature of Graphene Oxide on Low Temperature Hydrogen Sorption |
| title_sort | effect of reduction temperature of graphene oxide on low temperature hydrogen sorption |
| topic | Graphene oxide Thermal reduction Hydrogen sorptio |
| url | http://jnep.sumdu.edu.ua/download/numbers/2015/2/articles/jnep_2015_V7_02008.pdf |
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