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PREPARATION OF Ni-Pt/La2O3 CATALYST AND ITS KINETICS STUDY OF HYDROUS HYDRAZINE FOR HYDROGEN GENERATION
Zhong Yujie1; Dai Hongbin2; Wang Ping2
Corresponding AuthorDai Hongbin(mshbdai@scut.edu.cn)
2016-04-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume52Issue:4Pages:505-512
AbstractSafe 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.
Keywordhydrous hydrazine hydrogen generation catalyst reaction kinetics
Funding OrganizationNational Outstanding Youth Science Foundation of China ; National Natural Science Foundation of China
Indexed BySCI
Language英语
Funding ProjectNational Outstanding Youth Science Foundation of China[51125003] ; National Natural Science Foundation of China[51471168]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000374809600015
PublisherSCIENCE PRESS
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/122001
Collection中国科学院金属研究所
Corresponding AuthorDai Hongbin
Affiliation1.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
Recommended Citation
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.
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