NDLI: XANES analysis of tribo-chemical and thermal films generating from some organic polysulfides

Content Provider	Springer Nature Link
Author	Yi, Hongling Zeng, Xiangqiong Cao, Yan Ren, Tianhui Kasrai, M. Bancroft, G. M.
Copyright Year	2006
Abstract	X-ray absorption near edge structure (XANES) spectroscopy has been firstly used to characterize the chemical nature of tribochemical and thermal films generated from alkyl, benzyl and acylcontaining organic polysulfides. It has been found that the thermal films generated from these polysulfides are mainly composed of FeSO$_{4}$, and alkyl disulfides also exist in the subsurface and bulk of thermal films generated from acyl-containing polysulfides. Under tribochemical conditions, the composition of film is dependent on the molecular structure of the additives. Namely, the tribochemical film generated from alkyl polysulfide is composed of alkyl disulfide in the out surface, a mixture of FeSO$_{4}$, FeS$_{2}$ and sulfoxide in the subsurface, and FeSO$_{4}$ in the bulk; the composition of the tribochemical film for benzyl polysulfide consists of FeSO$_{4}$ in the out surface, while the composition in subsurface and bulk is the same as the alkyl polysulfide. For acyl-containing polysulfides, the tribochemical films consist of alkyl disulfide in the out surface, and FeS$_{2}$ in the subsurface and bulk.
Starting Page	2710
Ending Page	2716
Page Count	7
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	51
Issue Number	22
e-ISSN	18619541
Language	English
Publisher	Science in China Press
Publisher Date	2006-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	organic polysulfides XANES tribochemical film thermal film Science Chemistry/Food Science Geosciences Life Sciences Physics Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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