伪-Mn₂O₃-catalyzed adsorption reaction of benzotriazole for 鈥渟mart鈥?corrosion protection of copper

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• 作者：Wen Sun ; Lida Wang ; ^{ldwang@dlut.edu.cn" class="auth_mail} ; Tingting Wu ; Guichang Liu ; ^{gchliu@dlut.edu.cn" class="auth_mail}
• 关键词：A. Copper ; A. Organic coatings ; B. EIS ; B. SEM ; C. Oxygen reduction
• 刊名：Corrosion Science
• 出版年：May, 2014
• 年：2014
• 卷：82
• 期：Complete
• 页码：1-6
• 全文大小：1175 K

文摘

Nanostructured 伪-Mn₂O₃ was synthesized via a facile one-pot solvothermal method. The synthesized 伪-Mn₂O₃ was then added to epoxy coating to serve as a catalyst, which could promote the reaction between benzotriazole (BTA) and copper. Comparative experiments showed that the formation rate of protective film on copper substrate tripled when 伪-Mn₂O₃ was added. Such an improvement was supposed to be associated with the oxygen reduction reaction (ORR) catalytic activity of 伪-Mn₂O₃ and the Schottky contact fabricated at the metal/semiconductor interface. A possible mechanism was also presented to interpret the observed catalytic property of 伪-Mn₂O₃. Adding catalysts to the coating matrix might be a meaningful strategy for developing fast response, high efficient and long lifetime feedback active coatings (FACs).