PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION

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	PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION
	Zhong Yujie 1; Dai Hongbin 2; Wang Ping 2
刊名	ACTA METALLURGICA SINICA
	2016-04-11
卷号	52 期号:4 页码:505-512
关键词	hydrous hydrazine hydrogen generation catalyst reaction kinetics
ISSN号	0412-1961
通讯作者	Dai Hongbin(mshbdai@scut.edu.cn)
英文摘要	Safe and efficient hydrogen storage remains a grand challenge in the widespread implementation of hydrogen fuel cell technology. Recently, chemical hydrogen storage has emerged as a promising alternative for vehicular and portable applications. A number of hydrogen-rich materials have been experimentally demonstrated to deliver large amounts of hydrogen under mild conditions with controllable kinetics. Among these materials of interest, hydrous hydrazine (N2H4 center dot H2O) is a promising but yet not fully explored candidate. The development of highly efficient catalyst and its reaction kinetics law are the key issues of N2H4 center dot H2O-based hydrogen generation (HG) systems. Herein, a supported Ni-Pt/La2O3 catalyst was prepared by a combination of co-precipitation and galvanic replacement methods. Via optimizing preparing processes, the developed catalyst enabled a complete decomposition of N2H4 center dot H2O to generate H-2 at a reaction rate of 340 h(-1) at 323 K, which outperforms most reported N2H4 center dot H2O decomposition catalysts. Phase/structural analyses by XRD, TEM and XPS were carried out to gain insight into the catalytic performance of the Ni-Pt/La2O3 catalyst. In addition, the effects of temperature, concentration of N2H4 center dot H2O and NaOH, and amount of catalyst on the N2H4 center dot H2O decomposition were investigated over the Ni-Pt/La2O3 catalyst. The kinetic rate equation may be represented by the expression: r = -d[N2H4 center dot H2O]/dt = 2435exp(-51.53/(RT)) [N2H4 center dot H2O](0) (3)[NaOH](0(0 12))[Ni](1 03). The obtained results should lay the experimental and theoretical foundation for developing practical application of N2H4 center dot H2O-based HG system.
资助项目	National Outstanding Youth Science Foundation of China[51125003] ; National Natural Science Foundation of China[51471168]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000374809600015
资助机构	National Outstanding Youth Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/122003]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dai Hongbin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.S China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhong Yujie,Dai Hongbin,Wang Ping. PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION[J]. ACTA METALLURGICA SINICA,2016,52(4):505-512.
APA	Zhong Yujie,Dai Hongbin,&Wang Ping.(2016).PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION.ACTA METALLURGICA SINICA,52(4),505-512.
MLA	Zhong Yujie,et al."PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION".ACTA METALLURGICA SINICA 52.4(2016):505-512.