Heat of Adsorption of Propyne on Cu(111) from Isotherms Measured by Reflection Absorption Infrared Spectroscopy
Heat of Adsorption of Propyne on Cu(111) from Isotherms Measured by Reflection Absorption Infrared Spectroscopy
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反射吸收红外光谱测定等温线中丙炔对 Cu(111) 的吸附热
DOI:
10.1021/acs.jpcc.1c06750
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Trenary, Michael
中科院分区:
文献类型:
--
作者:
Islam, Arephin;Abdel-Rahman, Mohammed K.;Trenary, Michael
Reflection absorption infrared spectroscopy (RAIRS) has been used to show that under pressures of 5–100 nTorr, propyne adsorbs reversibly at room temperature on the Cu(111) surface. The pressure dependence of the propyne coverage, based on RAIRS peak areas, was found to follow a Langmuir isotherm. From fits of the isotherms, the equilibrium constants for the adsorption were determined at temperatures from 300.0 to 307.5 K. From van’t Hoff plots of the temperature dependence of the equilibrium constant, a heat of adsorption of −120 ± 27 kJ mol–1and an entropy change of adsorption of −171 ± 88 J mol–1K–1were determined. These values are consistent with the corresponding literature values of similar systems.
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DOI:
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发表时间:
2004
期刊:
影响因子:
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作者:
A. Valcárcel;J. Ricart;F. Illas;A. Clotet
通讯作者:
A. Clotet
影响因子:
12.9
作者:
Abdel-Rahman, Mohammed K.;Trenary, Michael
通讯作者:
Trenary, Michael
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发表时间:
2000
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R. M. Lambert
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发表时间:
2009
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A. Clotet
DOI:
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发表时间:
2000
期刊:
影响因子:
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作者:
A. Clotet;J. Ricart;F. Illas;G. Pacchioni;R. M. Lambert
通讯作者:
R. M. Lambert