Аннотация
Single-atom catalysts with ionic Pd active sites supported on nitrogen-doped carbon nanotubes have been synthesized with a palladium content of 0.2–0.5 wt %. The Pd sites exhibited unexpectedly high stability up to 500 °C in a hydrogen atmosphere which was explained by coordination of the Pd ions by nitrogen-containing fragments of graphene layers. The active sites showed a high rate of gas-phase formic acid decomposition yielding hydrogen. An increase in Pd content was accompanied by the formation of metallic nanoparticles with a size of 1.2–1.4 nm and by a decrease in the catalytic activity. The high stability of the single-atom Pd sites opens possibilities for using such catalysts in high-temperature reactions.
Язык оригинала | английский |
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Страницы (с-по) | 3724-3727 |
Число страниц | 4 |
Журнал | ChemSusChem |
Том | 11 |
Номер выпуска | 21 |
DOI | |
Состояние | Опубликовано - 9 ноя 2018 |