Photoelectrochemical reduction of carbon dioxide to methanol on p-type CuFe2O4 under visible light irradiation
作者： Kaykobad Md Rezaul Karim , Huei Ruey Ong , Hamidah Abdullah , Abu Yousuf , Chin Kui Cheng
DOI: 10.1016/J.IJHYDENE.2018.07.174
关键词: Photocathode 、 Photoelectrochemical reduction of CO2 、 Chronoamperometry 、 Photocatalysis 、 Quantum efficiency 、 Band gap 、 X-ray photoelectron spectroscopy 、 Artificial photosynthesis 、 Photochemistry 、 Materials science
摘要: Abstract Artificial photosynthesis has the potential to produce solar fuels from CO2 and H2O using an efficient photocatalyst. Semiconductor with low band gap high stability is always right candidate be used as Photocatalytic (PC) reduction of suffers slow reaction kinetics poor yield product. in assistance judicious bias a solution increase catalytic activity reduce electron/hole (e−/h+) recombination rate. In present work, p-type CuFe2O4 was synthesized for photoelectrochemical (PEC) reduction. The catalyst characterized by UV-visible spectroscopy (UV-vis), Mott-Schottky (MS), chronoamperometry, X-Ray powder diffraction (XRD), photoelectron (XPS) transmission electron microscopy (TEM). Methanol found only product liquid phase produced at −0.5 V (vs NHE) under light irradiation (at 470 nm). quantum efficiency incident photon current (IPCE) were 14.4% 5.1% respectively revealed that, photocathode PEC
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