Electron-Induced Decomposition of Condensed Acetone Studied by Quantifying Desorption and Retention of Volatile Products
Electron-Induced Decomposition of Condensed Acetone Studied by Quantifying Desorption and Retention of Volatile Products
复制标题
通过量化挥发性产物的解吸和保留来研究缩合丙酮的电子诱导分解
DOI:
10.1021/acs.jpcc.5b01167
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发表时间:
2015
影响因子:
3.7
通讯作者:
P. Swiderek
中科院分区:
文献类型:
--
作者:
J. Warneke;P. Swiderek
The electron-induced decomposition of thin condensed layers of acetone was studied by a combination of electron-stimulated desorption (ESD) experiments and thermal desorption spectrometry (TDS) monitoring both the decay of acetone and the formation of volatile products. A reaction mechanism for the decay is proposed and its validity verified by modeling the TDS and ESD data on the basis of a set of resulting elementary rate equations. The results show that ESD data as a function of electron exposure also give indirect evidence of the presence of nonvolatile species. In particular, formation and desorption of CO is delayed because part of the carbonyl groups become incorporated in larger nonvolatile compounds. These, in turn, decompose upon further electron exposure to release CO. ESD curves obtained below the desorption temperature of the small volatile products CO and CH4have also been reproduced well assuming that acetone layers have a limited capacity for uptake of volatile species and become saturated with these products during decomposition. Finally, we show that the quantitative evaluation of ESD data obtained above and below the desorption temperature of small volatile products in principle offers an approach to a quantitative comparison of product amounts desorbing in ESD and postirradiation TDS.
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DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
M. Huels;L. Parenteau;A. Bass;L. Sanche
通讯作者:
L. Sanche
影响因子:
3.7
作者:
Boehler, E.;Bredehoeft, J. H.;Swiderek, P.
通讯作者:
Swiderek, P.
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
J. Campbell;C. Bater;W. Durrer;J. H. Craig
通讯作者:
J. H. Craig
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
T. Madey;Robert E. Johnson;T. Orlando
通讯作者:
T. Orlando
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
E. Burean;P. Swiderek
通讯作者:
P. Swiderek