Microwave Effects on Co-Pi Cocatalysts Deposited on α-Fe2O3 for Application to Photocatalytic Oxygen Evolution.
Masato M MaitaniTakuya YamadaHisanori MashikoKohei YoshimatsuTakayoshi OshimaAkira OhtomoYuji WadaPublished in: ACS applied materials & interfaces (2017)
We analyze the effects of microwave applied in the process of photoelectrochemical deposition of cobalt-based cocatalysts, Co-Pi, onto well-orientated flat α-Fe2O3 thin films, which were fabricated by pulsed laser deposition. As compared with conventional heating, microwave significantly affects the morphology, chemical composition, and photocatalytic activity of Co-Pi/α-Fe2O3 composite. A significant enhancement in photocurrent related to photocatalytic water oxidation is achieved by the Co-Pi catalyst prepared under microwave irradiation. This, along with its interfacial electron-transfer properties, is studied by means of electrochemical impedance spectroscopy.
Keyphrases
- visible light
- electron transfer
- reduced graphene oxide
- radiofrequency ablation
- highly efficient
- gold nanoparticles
- ionic liquid
- high resolution
- magnetic resonance
- hydrogen peroxide
- single molecule
- nitric oxide
- metal organic framework
- molecular dynamics simulations
- radiation therapy
- solid state
- simultaneous determination
- molecularly imprinted
- tandem mass spectrometry