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- W4283734619 endingPage "10586" @default.
- W4283734619 startingPage "10575" @default.
- W4283734619 abstract "The development of an efficient heterogeneous catalyst for storing H2 into CO2 and releasing it from the produced formic acid, when needed, is a crucial target for overcoming some intrinsic criticalities of green hydrogen exploitation, such as high flammability, low density, and handling. Herein, we report an efficient heterogeneous catalyst for both reactions prepared by immobilizing a molecular iridium organometallic catalyst onto a high-surface mesoporous silica, through a sol–gel methodology. The presence of tailored single-metal catalytic sites, derived by a suitable choice of ligands with desired steric and electronic characteristics, in combination with optimized support features, makes the immobilized catalyst highly active. Furthermore, the information derived from multinuclear DNP-enhanced NMR spectroscopy, elemental analysis, and Ir L3-edge XAS indicates the formation of cationic iridium sites. It is quite remarkable to note that the immobilized catalyst shows essentially the same catalytic activity as its molecular analogue in the hydrogenation of CO2. In the reverse reaction of HCOOH dehydrogenation, it is approximately twice less active but has no induction period." @default.
- W4283734619 created "2022-07-01" @default.
- W4283734619 creator A5005979345 @default.
- W4283734619 creator A5017539442 @default.
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- W4283734619 creator A5021154449 @default.
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- W4283734619 creator A5046771754 @default.
- W4283734619 creator A5062509948 @default.
- W4283734619 creator A5069314683 @default.
- W4283734619 date "2022-06-29" @default.
- W4283734619 modified "2023-10-17" @default.
- W4283734619 title "Single-Site Iridium Picolinamide Catalyst Immobilized onto Silica for the Hydrogenation of CO<sub>2</sub> and the Dehydrogenation of Formic Acid" @default.
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