Zhu Y,
Cao T,
Cao C.
*
Luo J,
Chen W,
Zheng L,
Dong J,
Zhang J,
Han Y,
Li Z,
Chen C,
Peng Q,
Wang D,
Li Y.
* Tsinghua University, Beijing, Beijing Institute of Technology, Institute of High Energy Physics (CAS), Bejing, and Tianjin University of Technology, P. R. of China
One-Pot Pyrolysis to N-Doped Graphene with High-Density Pt Single Atomic Sites as Heterogeneous Catalyst for Alkene Hydrosilylation.
ACS Catal. 2018;
8: 10004-10011
Key words
N-doped graphene - platinum catalysis - hydrosilylation - alkenes - nanostructures
Significance
Single-atom platinum catalyst supported on N-doped graphene (Pt-ISA/NG) was prepared by heating a mixture of an EDTA–Pt complex and Na2CO3 at 850 °C for one hour, followed by removal of the Na2CO3 with dilute HCl (eq. 1). Pt-ISA/NG catalyzed the hydrosilylation of alkenes with triethoxysilane to give the corresponding silylated alkanes in ≤99% conversion and ≤99% selectivity (eq. 2).
Comment
The authors have previously reported the preparation of the EDTA–Pt complex (Nano Res. 2018, 11, 3088). In the hydrosilylation of octan-1-one with triethoxysilane, Pt-ISA/NG was reused four times without significant loss of its catalytic activity. TEM, EDX, HAADF-STEM, and EXAFS studies on the recovered Pt-ISA/NG indicated that the structural and electronic integrity of Pt-ISA/NG was maintained under the reaction conditions.
