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- Title
Spherical Mesoporous SBA‐15‐Supported CoP Nanoparticles as Robust Selective CO<sub>2</sub>Reduction and H<sub>2</sub>‐Generating Catalyst under Visible Light.
- Authors
Fu, Zi‐Cheng; Moore, Joshua T.; Yang, Zi‐Xin; Hu, Jia‐Jun; Fu, Wen‐Fu
- Abstract
The highly active spherical hybrid catalysts with diameters of 3–8 μm for robust selective CO2 photoreduction and hydrogen production by switching solvent, CoP/(i)s‐SBA‐15 and CoP/(o)s‐SBA‐15, were in situ synthesized for the first time by incorporating CoP nanoparticles on the interior and outside of the spherical mesoporous Santa Barbara Amorphous (s‐SBA)‐type material s‐SBA‐15. CoP/(i)s‐SBA‐15 has a larger pore diameter of ∼9.5 nm, relative to ∼5.7 nm of CoP/(o)s‐SBA‐15, and a calculated Brunauer‐Emmett‐Teller surface area of ∼214 m2 g−1 compared with ∼336 m2 g−1 for the latter. In comparison with bare CoP, the composites exhibited excellent catalytic CO‐ and H2‐generating performance with product selectivity of up to 76.3 % and 99.9 % through switching solvents containing Ru‐based photosensitizer under ambient conditions, respectively. The influences of various solvents and electron donors, as well as the amounts of H2O, and catalyst on reaction kinetics for CO2 reduction and H2 production, and intrinsic properties of both catalysts were investigated and compared.
- Subjects
CATALYSTS; VISIBLE spectra; CARBON dioxide; CHEMICAL kinetics; NANOPARTICLES; ELECTRON donors; RUTHENIUM catalysts; HYDROGEN evolution reactions
- Publication
ChemCatChem, 2020, Vol 12, Issue 21, p5504
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.202000905