A stable periodic mesoporous organosilica (PMO) with accessible sulfonic acid functionalities is prepared via a one‐pot‐synthesis and is used as solid support for highly active catalysts, consisting of gold(I)‐N‐heterocyclic carbene (NHC) comp...
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https://www.riss.kr/link?id=O120734654
2018년
-
1439-4235
1439-7641
SCI;SCIE;SCOPUS
학술저널
430-436 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
A stable periodic mesoporous organosilica (PMO) with accessible sulfonic acid functionalities is prepared via a one‐pot‐synthesis and is used as solid support for highly active catalysts, consisting of gold(I)‐N‐heterocyclic carbene (NHC) comp...
A stable periodic mesoporous organosilica (PMO) with accessible sulfonic acid functionalities is prepared via a one‐pot‐synthesis and is used as solid support for highly active catalysts, consisting of gold(I)‐N‐heterocyclic carbene (NHC) complexes. The gold complexes are successfully immobilized on the nanoporous hybrid material via a straightforward acid–base reaction with the corresponding [Au(OH)(NHC)] synthon. This catalyst design strategy results in a boomerang‐type catalyst, allowing the active species to detach from the surface to perform the catalysis and then to recombine with the solid after all the starting material is consumed. This boomerang behavior is assessed in the hydration of alkynes. The tested catalysts were found to be active in the latter reaction, and after an acidic work‐up, the IPr*‐based gold catalyst can be recovered and then reused several times without any loss in efficiency.
Boomerang effect: Gold(I)‐N‐heterocyclic carbene (NHC) complexes are successfully immobilized on PMO materials via straightforward acid–base reactions with the corresponding [Au(OH)(NHC)] synthon. This catalyst design strategy results in a boomerang‐type catalyst for the hydration of alkynes. The catalyst can be recovered and then reused several times without any loss in efficiency.
A Kinetic Study of Methane Partial Oxidation over Fe‐ZSM‐5 Using N2O as an Oxidant