Patent ID: 11913128
Assignee: CENTRAL SOUTH UNIVERSITY
Field: Surface technology, coating (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A method for compact and flat bismuth metal preparation by electrolysis, comprising:
1) preparing an acidic solution of bismuth methanesulfonate as an electrolyte, and adding an additive which is one or more selected from the group consisting of acacia, sulfonated and vulcanized alkylphenol ethoxy and naphthol ethoxy oxide to the electrolyte to obtain a mixed electrolyte consisting of the acidic solution of bismuth methanesulfonate and the additive; and
2) injecting the mixed electrolyte obtained in step 1) into an electrolytic cell, inserting an anodic plate and a cathodic plate into the electrolytic cell, and applying direct current electrolysis to obtain compact and flat bismuth metal, wherein a concentration of the additive is in a range from 0.2 grams per liter (g/L) to 2.0 g/L.