Journal
ADVANCED MATERIALS
Volume 31, Issue 2, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201804763
Keywords
confined catalysis; electrocatalysis; glycerol oxidation; graphene; platinum nanosheets
Categories
Funding
- National Research Foundation, Singapore [NRF-NRF12015-01]
- National Natural Science Foundation of China [51772110]
- NGS Scholarship
Ask authors/readers for more resources
Confined catalysis in a 2D system is of particular interest owing to the facet control of the catalysts and the anisotropic kinetics of reactants, which suppress side reactions and improve selectivity. Here, a 2D-confined system consisting of intercalated Pt nanosheets within few-layered graphene is demonstrated. The strong metal-substrate interaction between the Pt nanosheets and the graphene leads to the quasi-2D growth of Pt with a unique (100)/(111)/(100) faceted structure, thus providing excellent catalytic activity and selectivity toward one-carbon (C1) products for the glycerol oxidation reaction. A hierarchically porous graphene architecture, grown on carbon cloth, is used to fabricate the confined catalyst bed in order to enhance the mass-diffusion limitation in interface-confined reactions. Owing to its unique 3D porous structure, this graphene-confined Pt catalyst exhibits an extraordinary mass activity of 2910 mA mg(Pt)(-1) together with a formate selectivity of 79% at 60 degrees C. This paves the way toward rational designs of heterogeneous catalysts for energy-related applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available