Study on thermal decomposition of lithium hexafluorophosphate byTG-FT-IR coupling method

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	Study on thermal decomposition of lithium hexafluorophosphate byTG-FT-IR coupling method
	Teng, XG; Li, FQ; Ma, PH; Ren, QD; Li, SY
	2005
发表期刊	THERMOCHIMICA ACTA
ISSN	0040-6031
卷号	436 期号:1-2 页码:30-34
摘要	Using TG-FT-IR coupling method, direct evidences of the decomposition process of lithium hexafluorophosphate had been obtained. Studies showed that LiPF6 is stable under normal temperature when the content of water is very low. When heated, LiPF6 would react with the trace water in the air. HF and OPF3 would be released in the same time which could be detected from the FT-IR spectra collected in situ. The peak temperature of the decomposition of LiPF6 varied from 192.93 degrees C (average heating rate 2.0 degrees C min(-1)) to 223.83 degrees C (average heating rate 20.0 degrees C min(-1)). Based on the on-line FT-IR spectra, the characteristic absorption bands of PF6- in the decomposed substances were detected for the first time which might come from the reaction of trace HF with PF5. (c) 2005 Elsevier B.V. All rights reserved. Using TG-FT-IR coupling method, direct evidences of the decomposition process of lithium hexafluorophosphate had been obtained. Studies showed that LiPF6 is stable under normal temperature when the content of water is very low. When heated, LiPF6 would react with the trace water in the air. HF and OPF3 would be released in the same time which could be detected from the FT-IR spectra collected in situ. The peak temperature of the decomposition of LiPF6 varied from 192.93 degrees C (average heating rate 2.0 degrees C min(-1)) to 223.83 degrees C (average heating rate 20.0 degrees C min(-1)). Based on the on-line FT-IR spectra, the characteristic absorption bands of PF6- in the decomposed substances were detected for the first time which might come from the reaction of trace HF with PF5. (c) 2005 Elsevier B.V. All rights reserved.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2320
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Teng, XG,Li, FQ,Ma, PH,et al. Study on thermal decomposition of lithium hexafluorophosphate byTG-FT-IR coupling method[J]. THERMOCHIMICA ACTA,2005,436(1-2):30-34.
APA	Teng, XG,Li, FQ,Ma, PH,Ren, QD,&Li, SY.(2005).Study on thermal decomposition of lithium hexafluorophosphate byTG-FT-IR coupling method.THERMOCHIMICA ACTA,436(1-2),30-34.
MLA	Teng, XG,et al."Study on thermal decomposition of lithium hexafluorophosphate byTG-FT-IR coupling method".THERMOCHIMICA ACTA 436.1-2(2005):30-34.

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