Synthesis of Bimetallic Nanocompositions AuxPd1-x/γ-Al2O3 for Catalytic CO Oxidation Научная публикация
| Журнал |
Journal of Nanoparticle Research
ISSN: 1388-0764 , E-ISSN: 1572-896X |
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| Вых. Данные | Год: 2017, Том: 19, Номер: 11, Номер статьи : 367, Страниц : 9 DOI: 10.1007/s11051-017-4061-x | ||||||
| Ключевые слова | Gold, Nanoalloys, Nanoparticles, Nanostructured catalysts, Palladium | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 16-13-10192 |
Реферат:
Colloidal suspensions of AuxPd1-x nanoalloys were prepared via hydrazine co-reduction of [AuCl4]− and [PdCl4]2− complex anions in aqueous solution. High molecular weight polymeric compounds polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and cryptoionic surfactants (AF-6 and AF-12 neonols, Triton X-100) were used as surface capping agents. Nanoparticles prepared under different experimental conditions were immobilized on γ-Al2O3 supports. The removal of the capping agents from the surface of the active particles was achieved through calcination of samples in oxidative atmosphere (air, 500 °C). This pretreatment of the catalysts significantly enhances their performance. Powder XRD, TEM, and EDX were employed to characterize the structure, size, and composition of the AuxPd1-x/γ-Al2O3 catalysts. The immobilized particles consist of uniformly mixed alloys having multi-domain face-centered cubic structure with typical crystallite size of 3–6 nm. The activity of the prepared samples was examined with temperature-programmed CO oxidation reaction (TP-CO+O2). Triton X-100 surfactant is superior in a number of parameters. Among all AuxPd1-x/γ-Al2O3 catalysts tested, the one stabilized with Triton X-100 (0.4%Au-0.2%Pd@Triton X-100) was found to have the highest activity for conversion of CO into CO2.
Библиографическая ссылка:
Zaytsev S.Y.
, Plyusnin P.E.
, Slavinskaya E.M.
, Shubin Y.V.
Synthesis of Bimetallic Nanocompositions AuxPd1-x/γ-Al2O3 for Catalytic CO Oxidation
Journal of Nanoparticle Research. 2017. V.19. N11. 367 :1-9. DOI: 10.1007/s11051-017-4061-x WOS Scopus РИНЦ CAPlus OpenAlex
Synthesis of Bimetallic Nanocompositions AuxPd1-x/γ-Al2O3 for Catalytic CO Oxidation
Journal of Nanoparticle Research. 2017. V.19. N11. 367 :1-9. DOI: 10.1007/s11051-017-4061-x WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 7 июн. 2017 г. |
| Принята к публикации: | 24 окт. 2017 г. |
| Опубликована в печати: | 1 нояб. 2017 г. |
| Опубликована online: | 4 нояб. 2017 г. |
Идентификаторы БД:
| Web of science: | WOS:000414473400001 |
| Scopus: | 2-s2.0-85032981570 |
| РИНЦ: | 31049929 |
| Chemical Abstracts: | 2017:1759235 |
| OpenAlex: | W2767056535 |