Study of electronic state of supported gold nanospecies by IR spectroscopy

Oxana Anatolievna Martynyuk, A. Pestryakov, N. Bogdanchikova, H. Tiznado, T. A. Zepeda, I. Tuzovskaya

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The nature of different Au species supported on hexagonal mesoporous silica has been studied by infrared spectroscopy of adsorbed CO. Experiments revealed existence of the following states of supported gold: neutral metal particles Au°, ions Au+ and a number of partly charged states Au δ+ with different effective charge. Redox pretreatments (vacuum, O2 and H2) of Au/SiO2 at the different temperatures (100, 300 and 500°C) exert a significant effect on the electronic state of supported Au species. The experiments showed high stability of Auδ+ states under all treatments; that may prove their active role in catalytic properties of gold.

Язык оригиналаАнглийский
Название основной публикацииProceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012
DOI
СостояниеОпубликовано - 2012
Событие2012 7th International Forum on Strategic Technology, IFOST 2012 - Tomsk, Российская Федерация
Продолжительность: 18 сен 201221 сен 2012

Другое

Другое2012 7th International Forum on Strategic Technology, IFOST 2012
СтранаРоссийская Федерация
ГородTomsk
Период18.9.1221.9.12

ASJC Scopus subject areas

  • Management of Technology and Innovation

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