Method for preparing cobaltous oxide electrode with nanosheet structure

The invention discloses a method for preparing a cobaltous oxide electrode with a nanosheet structure, relates to a method for preparing an electrode, and aims at solving the problem that an existing cobaltous oxide pseudocapacitor is relatively low in specific capacitance. The method disclosed by the invention comprises the following steps: preparing a Co coating on an Si base, and then putting into a plasma enhanced chemical vapor deposition vacuum device; introducing argon, adjusting the gas flow and the pressure intensity, heating to a certain temperature, introducing oxygen, adjusting the gas flow of argon and oxygen, and adjusting the temperature, the radio frequency power and the pressure intensity; and carrying out deposition, so as to obtain the cobaltous oxide electrode with the nanosheet structure after deposition is ended. The method is used for preparing the cobaltous oxide electrode with the nanosheet structure.