扫描隧道显微镜
电解质
碳酸盐
电极
吸附
化学
结晶学
电极电位
电化学
分子
氢
分析化学(期刊)
材料科学
无机化学
物理化学
纳米技术
有机化学
色谱法
作者
Reihaneh Amirbeigiarab,Jing Tian,Alexander Bagger,Jan Rossmeisl,Olaf M. Magnussen
标识
DOI:10.1002/anie.202211360
摘要
(Bi)carbonate adsorption on Cu(100) in 0.1 M KHCO3 has been studied by in situ scanning tunneling microscopy. Coexistence of different ordered adlayer phases with ( 2${\sqrt{2}}$ ×6 2${\sqrt{2}}$ )R45° and (4×4) unit cells was observed in the double layer potential regime. The adlayer is rather dynamic and undergoes a reversible order-disorder phase transition at 0 V vs. the reversible hydrogen electrode. Density functional calculations indicate that the adlayer consists of coadsorbed carbonate and water molecules and is strongly stabilized by liquid water in the adjacent electrolyte.
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