Effect of condensation product of glycyl–glycine and furfural on electrodeposition of zinc from sulphate bath

Bulletin of Materials Science

关键词: Electroplating of zinc;    furfural;    glycyl–glycine;    Hull cell studies;    sulphate bath.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Zinc electrodeposition from sulphate bath was carried out in presence of condensation product formed between glycyl–glycine (GGL) and furfural (FFL). The bath constituents were optimized through Hull cell experiments. Operating parameters such as pH, temperature and current density were also optimized. Current efficiency and throwing power were measured. Polarization study revealed shift of potential towards negative direction in the presence of addition agents. Corrosion resistance test revealed good protection of base metal by zinc coating obtained from developed electrolyte. SEM photomicrographs showed fine-grained deposit in the presence of condensation product. IR spectrum of the deposit showed inclusion of condensation product in the deposit during plating. The consumption of brightener in the lab scale was 7 mLL-1 for 1000 amp-h.

【 授权许可】

CC BY