Alkene Hydrosilylation on Oxide‐Supported Pt‐Ligand Single‐Site Catalysts
作者:Linxiao Chen、Iyad S. Ali、George E. Sterbinsky、Jocelyn T. L. Gamler、Sara E. Skrabalak、Steven L. Tait
DOI:10.1002/cctc.201900530
日期:2019.6.19
widely regarded as promising next‐generation catalysts, blend the easy recovery of traditional heterogeneous catalysts with desired features of homogeneous catalysts: high fraction of active sites and uniform metal centers. We previously reported the synthesis of Pt‐ligand SSCs through a novel metal‐ligand self‐assembly method on MgO, CeO2, and Al2O3 supports (J. Catal. 2018, 365, 303–312). Here, we present
PDO OR BMTZ LIGAND FOR SUPPORTED COORDINATED PT HYDROSILYLATION CATALYSTS
申请人:THE TRUSTEES OF INDIANA UNIVERSITY
公开号:US20210069687A1
公开(公告)日:2021-03-11
The invention describes single-site metal catalysts such as Pt single-site centers on powdered oxide supports with a 1,10-phenanthroline-5,6-dione (PDO) or bis-pyrimidyltetrazine (BMTZ) ligand on powdered MgO, Al
2
O
3
, or CeO
2
.
involve a bi‐functional approach to ligand design, which considers interaction to the support and a well‐defined coordination environment for the metal active site. Three strategies are reported: modifying ligands for stronger interaction with oxide surfaces, mixing ligands, and pre‐depositing an “anchoring ligand” to the support before loading the metal‐ligandcatalyst. Each of these is successful in