TY - JOUR
T1 - Application of cathodic protection method on steel structures using sacrificial anode and sodium polyacrylate-sodium carboxymethyl cellulose (PANa–CMC) hydrogel electrolyte
AU - Xu, Jie
AU - Yang, Muye
AU - Li, Shengyue
AU - Kainuma, Shigenobu
AU - Ji, Bohai
AU - Murayama, Shinichi
N1 - Publisher Copyright:
© 2023 The Authors
PY - 2024/7
Y1 - 2024/7
N2 - An ionically conductive sodium polyacrylate-sodium carboxymethyl cellulose (PANa–CMC) hydrogel electrolyte was developed for the sacrificial anode cathodic protection (SACP) of carbon steel in high-humidity environments. The incorporation of varying ratios of CMC into hydrogel formulation enhanced the water retention capacity, adhesion strength, and electrochemical performance, making it suitable for SACP applications. Particularly, PANa-5% CMC hydrogels demonstrated a current density of approximately 3 μA/cm², inhibited passive corrosion product formation, and sequestered metal ions from anodes, thus minimizing contamination. These findings highlight the substantial potential of PANa–CMC hydrogels as electrolytes, expanding the application of the SACP method to atmospheric environments.
AB - An ionically conductive sodium polyacrylate-sodium carboxymethyl cellulose (PANa–CMC) hydrogel electrolyte was developed for the sacrificial anode cathodic protection (SACP) of carbon steel in high-humidity environments. The incorporation of varying ratios of CMC into hydrogel formulation enhanced the water retention capacity, adhesion strength, and electrochemical performance, making it suitable for SACP applications. Particularly, PANa-5% CMC hydrogels demonstrated a current density of approximately 3 μA/cm², inhibited passive corrosion product formation, and sequestered metal ions from anodes, thus minimizing contamination. These findings highlight the substantial potential of PANa–CMC hydrogels as electrolytes, expanding the application of the SACP method to atmospheric environments.
KW - Carbon steel
KW - Corrosion
KW - High humidity environment
KW - PANa–CMC hydrogels
KW - Sacrificial anode cathodic protection
UR - http://www.scopus.com/inward/record.url?scp=85178499734&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85178499734&partnerID=8YFLogxK
U2 - 10.1016/j.cscm.2023.e02742
DO - 10.1016/j.cscm.2023.e02742
M3 - Article
AN - SCOPUS:85178499734
SN - 2214-5095
VL - 20
JO - Case Studies in Construction Materials
JF - Case Studies in Construction Materials
M1 - e02742
ER -