Adhesion Energies of Solvent Films to Pt(111) and Ni(111) Surfaces by Adsorption Calorimetry
Adhesion Energies of Solvent Films to Pt(111) and Ni(111) Surfaces by Adsorption Calorimetry
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通过吸附量热法测定溶剂膜对 Pt(111) 和 Ni(111) 表面的粘附能
DOI：
10.1021/acscatal.9b03591
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发表时间：
2019
期刊：
影响因子：
12.9
通讯作者：
Campbell, Charles T.
中科院分区：
文献类型：
--
作者：
Rumptz, John R.;Campbell, Charles T.
溶剂/金属粘附能对于理解溶剂对吸附能的影响至关重要，而吸附能又是理解液相催化、电催化和许多其他技术（如基于吸附的分离和化学传感器）的核心。反应物在不同溶剂中的吸附能的差异主要由它们的溶剂/金属粘附能的差异决定。在这里，五种液体溶剂的清洁Pt（111）和Ni（111）表面的粘附能已估计使用双真空量热测量的吸附热与覆盖集成从零覆盖厚（块状）多层固体膜。吸附能在0.15 ~ 0.60 J/m ~ 2之间变化，其增加趋势为CH_3OH < HCOOH <H_2 O <苯酚.这种趋势表明，在第一吸附层中具有较高单位面积吸附热的溶剂对给定的金属表面具有较高的粘附能。与Ni（111）的粘附能通常大于与Pt（111）的粘附能（平均为0.09 J/m2）。这是由于Ni（111）上每单位面积的金属原子数比Pt（111）上高24%，并且在含氧溶剂中，Ni的亲氧性比Pt的亲氧性更大。
Solvent/metal adhesion energies are crucial for understanding solvent effects on adsorption energies, which are, in turn, central to understanding liquid-phase catalysis, electrocatalysis, and many other technologies such as adsorption-based separations and chemical sensors. Differences in reactant adsorption energies in different solvents are dominated by differences in their solvent/metal adhesion energies. Here, the adhesion energies of five liquid solvents to clean Pt(111) and Ni(111) surfaces have been estimated using ultrahigh vacuum calorimetric measurements of heats of adsorption versus coverage integrated from zero coverage up to thick (bulk-like) multilayer solid films. The adhesion energies are found to vary from 0.15 to 0.60 J/m2, increasing in the trend CH3OH < HCOOH < H2O < benzene ≈ phenol. This trend indicates that solvents with higher heats of adsorption per unit area in the first adsorbed layer have higher adhesion energies to a given metal surface. The adhesion energies to Ni(111) are generally larger than to Pt(111) (on average by 0.09 J/m2). This is due to the 24% higher number of metal atoms per unit area on Ni(111) than on Pt(111) and, with oxygen-containing solvents, the greater oxophilicity of Ni compared to that of Pt.
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影响因子：
3.7
作者：
S. Carey;Wei Zhao;Zhongtian Mao;C. Campbell
通讯作者：
S. Carey;Wei Zhao;Zhongtian Mao;C. Campbell
影响因子：
12.9
作者：
W. Zhao;S. Carey;Zhongtian Mao;C. Campbell
通讯作者：
W. Zhao;S. Carey;Zhongtian Mao;C. Campbell
使用经典和量子方法计算液体溶剂下吸附到 Pt(111) 表面的催化物质的自由能
影响因子：
5.6
作者：
Zhang, Xiaohong;DeFever, Ryan S.;Sarupria, Sapna;Getman, Rachel B.
通讯作者：
Getman, Rachel B.
影响因子：
12.9
作者：
Wei Zhao;S. Carey;S. E. Morgan;C. Campbell
通讯作者：
Wei Zhao;S. Carey;S. E. Morgan;C. Campbell
苯酚、（单、二、三）氯酚、萨洛尔和（邻和间）氯硝基苯的密度和表面张力
DOI：
--
发表时间：
1965
期刊：
影响因子：
--
作者：
R. Badachhape;M. K. Gharpurey;A. Biswas
通讯作者：
A. Biswas