Abstract
We report for the first time, the role of capping agent and size effect of nickel tungstate (NiWO4) nanomaterials (NTN) in mitigation of copper corrosion in chloride medium. NTN were synthesized firstly, via a simple wet-chemical precipitation route without any capping agents (conventional process) and secondly with citric acid as capping agent, both in the presence of sodium tungstate (Na2WO4). Electrochemical analyses for corrosion protection have been tested and results indicated an improved corrosion protection of copper by the capped particles compared to the uncapped (conventional method) particles. A comparison was also made against Na2WO4 (a commercially available corrosion inhibitor).
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