Cascade Reactions in Nanozymes: Spatially Separated Active Sites inside Ag-Core–Porous-Cu-Shell Nanoparticles for Multistep Carbon Dioxide Reduction to Higher Organic Molecules
Year: 2019
Type: article
Abstract: Enzymes can perform complex multistep cascade reactions by linking multiple distinct catalytic sites via substrate channeling. We mimic this feature in a generalized approach with an electrocatalytic nanoparticle for the carbon dioxide reduction reaction comprising a Ag core surrounded by a porous Cu shell, providing different active sites in nanoconfined volumes. The architecture of the nanozyme provides the basis for a cascade reaction, which promotes C–C coupling reactions. The first step occurs on the Ag core, and the subsequent steps on the porous copper shell, where a sufficiently high CO concentration due to the nanoconfinement facilitates C–C bond formation. The architecture yields the formation of n-propanol and propionaldehyde at potentials as low as −0.6 V vs RHE.
DOI: 10.1021/jacs.9b07310
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,000
Awards: EXC 2033: RESOLV (Ruhr Explores Solvation), G199205490, Nanoparticles with structures that mimic enzymes for electrocatalysis, The first generation of single entity measurement tools for analysis, Catalytic cascade reactions. From fundamentals of nanozymes to applications based on gas-diffusion electrodes, G4963350894, G7097889896, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
OpenAlex ID: W2969350875