TY - JOUR
T1 - Corrosion inhibition of copper particles on ITO with 1,2,4-triazole-3-carboxylic acid
AU - Chang, Feng Hao
AU - Chen, Tai You
AU - Lee, Szu Han
AU - Chen, Yun Hsien
AU - Chen, You Jyun
AU - Lin, Jong Liang
N1 - Funding Information:
This research was financially supported by the Ministry of Science and Technology of the Republic of China (MOST 105-2113-M-006-002 ).
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/3
Y1 - 2018/3
N2 - Copper particles electrodeposited on ITO/glass (Cu/ITO) have been prepared and used to explore the inhibitory capability of 1,2,4-triazole-3-carboxylic acid (TCA) against the copper oxidation. The protective effect of TCA for the Cu/ITO is demonstrated in CH3OH solution with NaOH and in H2O solution with NaCl, using cyclic voltammetry. The surface species responsible for the corrosion inhibition are analyzed using X-ray photoelectron and infrared spectroscopies. The spectroscopic results strongly suggest that the doubly dehydrogenated TCA (TCA-2H), from the N–H and O–H bond scission, plays an important role for the copper protection. The density-functional-theory calculations of the TCA-2H on Cu(100) and Cu(111) model surfaces show that it is adsorbed with a perpendicular orientation, via the 1N, 2N and one of the carboxylate oxygens. Moreover, the calculated vibrational frequencies of the TCA-2H on Cu(100) agree with the observed ones from the species exerting the inhibitory effect.
AB - Copper particles electrodeposited on ITO/glass (Cu/ITO) have been prepared and used to explore the inhibitory capability of 1,2,4-triazole-3-carboxylic acid (TCA) against the copper oxidation. The protective effect of TCA for the Cu/ITO is demonstrated in CH3OH solution with NaOH and in H2O solution with NaCl, using cyclic voltammetry. The surface species responsible for the corrosion inhibition are analyzed using X-ray photoelectron and infrared spectroscopies. The spectroscopic results strongly suggest that the doubly dehydrogenated TCA (TCA-2H), from the N–H and O–H bond scission, plays an important role for the copper protection. The density-functional-theory calculations of the TCA-2H on Cu(100) and Cu(111) model surfaces show that it is adsorbed with a perpendicular orientation, via the 1N, 2N and one of the carboxylate oxygens. Moreover, the calculated vibrational frequencies of the TCA-2H on Cu(100) agree with the observed ones from the species exerting the inhibitory effect.
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U2 - 10.1016/j.surfin.2018.01.004
DO - 10.1016/j.surfin.2018.01.004
M3 - Article
AN - SCOPUS:85044860481
SN - 2468-0230
VL - 10
SP - 162
EP - 169
JO - Surfaces and Interfaces
JF - Surfaces and Interfaces
ER -