*4.3. Electrochemical Synthesis*

The electrochemical technique involves the use of a platinum electrode. A slight voltage is applied between the platinum and BP, so as to generate a flow of free radicals. Because of the resulting oxidative process, this technique can produce thin layers of BP [18]. As previously stated, oxygen favors a quicker degradation of BP; accordingly, it impacts on the overall stability of the crystalline structure, promoting rapid superficial corrosion of BP sheets.
