Probing thermal decomposition mechanism of molten nitrite/nitrates salt by time of flight mass spectrometry

doi:10.1016/j.solener.2019.03.067

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Probing thermal decomposition mechanism of molten nitrite/nitrates salt by time of flight mass spectrometry
	Fei, ZJ ; Zhang, Y ; Ge, M ; Wang, YT ; Li, YL ; Cheng, JH ; Wei, BR ; Hou, HQ ; Liu, HT
刊名	SOLAR ENERGY
	2019
卷号	183 期号:-页码:823—828
关键词	ELECTRON-IMPACT IONIZATION ENERGY STORAGE CROSS-SECTIONS SODIUM-NITRATE STABILITY SYSTEM
ISSN号	0038-092X
DOI	10.1016/j.solener.2019.03.067
文献子类	期刊论文
英文摘要	A time of flight mass spectrometer (TOF-MS) combined with a specially designed in-situ heating furnace was used for analyzing gaseous products evolved during salt decomposition. The thermal decomposition behavior of solar salt (60 wt% NaNO3-40 wt% KNO3) and sodium nitrite at temperature above melting point was investigated. According to mass spectra recorded at different temperature, both solar salt and sodium nitrite thermally decomposed above their melting point and the main products are NO and N-2 respectively. An unusual N2O was also observed in gaseous products by TOF-MS, while no O-2 or NO2 was found at temperature bellow 300 degrees C. The result shows a very different reaction process from the common sense that O-2 or NO2 should exist in the decomposition process. Based on these new evidences, the thermal decomposition mechanism of molten nitrite/nitrates salt is proposed, which suggests that there should be intermediate state such as superoxide and peroxide ions in the molten salt in the initial thermal-chemical reaction process.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31773]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 3.Fudan Univ, Shanghai EBIT Lab, Inst Modern Phys, Shanghai 200433, Peoples R China;
推荐引用方式 GB/T 7714	Fei, ZJ,Zhang, Y,Ge, M,et al. Probing thermal decomposition mechanism of molten nitrite/nitrates salt by time of flight mass spectrometry[J]. SOLAR ENERGY,2019,183(-):823—828.
APA	Fei, ZJ.,Zhang, Y.,Ge, M.,Wang, YT.,Li, YL.,...&Liu, HT.(2019).Probing thermal decomposition mechanism of molten nitrite/nitrates salt by time of flight mass spectrometry.SOLAR ENERGY,183(-),823—828.
MLA	Fei, ZJ,et al."Probing thermal decomposition mechanism of molten nitrite/nitrates salt by time of flight mass spectrometry".SOLAR ENERGY 183.-(2019):823—828.