Hydrothermal synthesis of Co3O4 nanosheets and its application in photoelectrochemical water splitting

作者：Bazrafshan Hamed^*; Touba Razieh Shajareh; Tesieh Zahra Alipour; Dabirnia Saeideh; Nasernejad Bahram

来源：Chemical Engineering Communications, 2017, 204(10): 1105-1112.

DOI：10.1080/00986445.2017.1344651

• Co3O4
• nanosheet
• photoelectrochemical

In this study, Co3O4 nanosheets were synthesized through hydrothermal method using cobalt nitrate hexahydrate. X-ray diffraction, diffuse reflectance spectra, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and field emission scanning electron microscopy were applied to investigate the properties of as-synthesized samples. Ultimately, the electrochemical and photoelectrochemical properties were evaluated by Mott-Schottky analysis and measuring photoconversion efficiency of Co3O4 nanosheets. The results indicated that Co3O4 nanosheets exhibited a maximum efficiency of 0.92% for water electrolysis under simulated 1.5 global sunlight air mass, which further suggests the excellent potential of Co3O4 nanosheets for application in hydrogen generation through photocatalytic water splitting.

• 出版日期2017