Initial stages of benzotriazole adsorption on the Cu(111) surface
Initial stages of benzotriazole adsorption on the Cu(111) surface
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DOI：
10.1039/c3nr00724c
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发表时间：
2013-01-01
期刊：
影响因子：
6.7
通讯作者：
Richardson, Neville V.
中科院分区：
文献类型：
--
作者：
Grillo, Federico;Tee, Daniel W.;Richardson, Neville V.
自20世纪50年代以来，苯并三唑(BTAH)一直被用作铜腐蚀缓蚀剂；然而，抑制作用如何发生的分子水平细节仍然存在争议。用扫描隧道显微镜(STM)、振动光谱(RAIRS)和支持密度泛函理论(DFT)模型研究了BTAH在铜(111)单晶上的吸附行为。BTAH以阴离子形式吸附(BTA)，CuBTA是少数物种，而大多数被吸附的物种Cu(BTA)(2)形成链，其截面以协调方式扩散。铜表面似乎以(2×1)的方式重构。
Benzotriazole (BTAH) has been used as a copper corrosion inhibitor since the 1950s; however, the molecular level detail of how inhibition occurs remains a matter of debate. The onset of BTAH adsorption on a Cu(111) single crystal was investigated via scanning tunnelling microscopy (STM), vibrational spectroscopy (RAIRS) and supporting DFT modelling. BTAH adsorbs as anionic (BTA), CuBTA is a minority species, while Cu(BTA)(2), the majority of the adsorbed species, form chains, whose sections appear to diffuse in a concerted manner. The copper surface appears to reconstruct in a (2 x 1) fashion.