Kinetic and thermodynamics studies on the decompositions of Ni3C in different atmospheres

doi:10.1016/j.tca.2008.04.003

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	Kinetic and thermodynamics studies on the decompositions of Ni3C in different atmospheres
	Leng, Yonghua 1; Xie, Lei 1; Liao, Fuhui 1; Zheng, Jie 1; Li, Xingguo 1,2
刊名	THERMOCHIMICA ACTA
	2008-07-10
卷号	473 期号:1-2 页码:14-18
关键词	Nickel Carbide Thermal Decomposition Kinetic Metastable
ISSN号	0040-6031
DOI	10.1016/j.tca.2008.04.003
英文摘要	The thermal decompositions (including TG and DSC) of nickel carbide were studied under different atmospheres of Ar, air and H-2. X-ray diffraction combined with element analysis indicated that nickel metal, together with solid amorphous carbon, was formed during Ni3C decomposition in Ar atmosphere, accompanying mass invariant in this process. While in H-2 atmosphere nickel metal was the only residual from reactions. The carbon component of nickel carbide reacted with H-2 to form methane as the main volatile gases. Both the nickel and carbon components of Ni3C reacted with O-2 in the air to form their corresponding oxides. Moreover, we calculated the activation energy for the decomposition process and the molar enthalpy of formation of Ni3C based on the thermal analysis. (C) 2008 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000257903700003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/65579]
专题	中国科学院化学研究所
通讯作者	Li, Xingguo
作者单位	1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, BNLMS, Beijing 100871, Peoples R China 2.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Leng, Yonghua,Xie, Lei,Liao, Fuhui,et al. Kinetic and thermodynamics studies on the decompositions of Ni3C in different atmospheres[J]. THERMOCHIMICA ACTA,2008,473(1-2):14-18.
APA	Leng, Yonghua,Xie, Lei,Liao, Fuhui,Zheng, Jie,&Li, Xingguo.(2008).Kinetic and thermodynamics studies on the decompositions of Ni3C in different atmospheres.THERMOCHIMICA ACTA,473(1-2),14-18.
MLA	Leng, Yonghua,et al."Kinetic and thermodynamics studies on the decompositions of Ni3C in different atmospheres".THERMOCHIMICA ACTA 473.1-2(2008):14-18.