Study the corrosion inhibition of mix of caffeine and iodua for CT3 steel in 1M HCl solution by electrochemical methods

Corrosion inhibition of mild carbon steel, CT3, in 1.0 M HCl solution by iodide (with different concentrations, from 0.1g/l to 5.0g/l), mix of caffeine and iodide was investigated by electrochemical methods and micro surface observations (SEM). Experiment result showed that: (1) as the concentration of iodide increases, the inhibition efficiency increases; Iodide acts as a mix – type inhibitor but inhibits anodic reaction is predominant. (2) Mix of 1.0 g/l iodide ang caffeine acts as a typical mix – type inhibitor. the current densities of both of anodic and cathode are decline when concentration of caffeine is 1.0 g/l or more. Inhibition efficiency max is approximately 96% at concentration of 5.0 g/l caffeine, the inhibition efficiency maintained relatively stable within 5 days....

Title:	Study the corrosion inhibition of mix of caffeine and iodua for CT3 steel in 1M HCl solution by electrochemical methods
Authors:	Truong, Thi Thao
Keywords:	Mix of iodide and caffeine;CT3 steel;corrosion inhibitor
Issue Date:	2017
Publisher:	ĐHQGHN
Series/Report no.:	Tập 33;Số 3

Description:	tr. 105-111
URI:	http://repository.vnu.edu.vn/handle/VNU_123/60787
ISSN:	2588-1140
Appears in Collections:	Natural Sciences and Technology