Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan.
ACS Appl Mater Interfaces. 2017 Mar 29;9(12):10349-10354. doi: 10.1021/acsami.6b16319. Epub 2017 Mar 20.
We analyze the effects of microwave applied in the process of photoelectrochemical deposition of cobalt-based cocatalysts, Co-Pi, onto well-orientated flat α-FeO 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-FeO 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.
我们分析了微波在光电化学沉积钴基助催化剂 Co-Pi 过程中的应用效果，该助催化剂沉积在通过脉冲激光沉积制备的取向良好的平面 α-FeO 薄膜上。与传统加热相比，微波显著影响 Co-Pi/α-FeO 复合材料的形貌、化学组成和光催化活性。在微波辐射下制备的 Co-Pi 催化剂显著提高了与光催化水氧化相关的光电流。这一点，以及它的界面电子转移特性，通过电化学阻抗谱进行了研究。
