CO2 reduction to acetate in mixtures of ultrasmall (Cu) n ,(Ag) m bimetallic nanoparticles.
Ying WangDegao WangChristopher J DaresSeth L MarquardMatthew V SheridanThomas J MeyerPublished in: Proceedings of the National Academy of Sciences of the United States of America (2017)
Monodispersed mixtures of 6-nm Cu and Ag nanoparticles were prepared by electrochemical reduction on electrochemically polymerized poly-Fe(vbpy)3(PF6)2 film electrodes on glassy carbon. Conversion of the complex to poly-Fe(vbpy)2(CN)2 followed by surface binding of salts of the cations and electrochemical reduction gave a mixture of chemically distinct clusters on the surface, (Cu) m ,(Ag) n |polymer|glassy carbon electrode (GCE), as shown by X-ray photoelectron spectroscopy (XPS) measurements. A (Cu)2,(Ag)3|(80-monolayer-poly-Fe(vbpy)32+|GCE electrode at -1.33 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO3, with 8 ppm added benzotriazole (BTA) at 0 °C, gave acetate with a faradaic efficiency of 21.2%.
Keyphrases
- ionic liquid
- metal organic framework
- visible light
- aqueous solution
- quantum dots
- solid state
- carbon nanotubes
- room temperature
- gold nanoparticles
- highly efficient
- walled carbon nanotubes
- high resolution
- reduced graphene oxide
- photodynamic therapy
- mass spectrometry
- squamous cell carcinoma
- binding protein
- lymph node metastasis
- liquid chromatography
- magnetic resonance
- simultaneous determination
- tandem mass spectrometry