Hydrogen storage and hydrogen generation properties of CaMg2-based alloys

被引：142

作者：

Ma, Miaolian ^{[1
,2
,3
]}

Duan, Ruoming ^{[1
,2
,3
]}

Ouyang, Liuzhang ^{[1
,2
,3
,4
]}

Zhu, Xiaoke ^{[1
,2
]}

Chen, Zhiling ^{[1
,2
]}

Peng, Chenghong ^{[1
,2
]}

Zhu, Min ^{[1
,2
,3
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China

[2] South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China

[3] South China Univ Technol, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Guangdong, Peoples R China

[4] South China Univ Technol, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 691卷

基金：

中国国家自然科学基金; 对外科技合作项目（国际科技项目）;

关键词：

Hydrogen storage; CaMg2-based alloys; Hydrogen absorption; Kinetics; Hydrolysis; CHEMICAL HYDRIDES; HYDROLYSIS; KINETICS; NI; DECOMPOSITION; MGH2;

D O I：

10.1016/j.jallcom.2016.08.307

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hydrogen storage and hydrogen generation of CaMg2 and CaMg1.9Ni0.1 alloys were investigated by X-ray diffraction (XRD) and pressure-composition-isotherm (PCI) measurements. The results confirmed that the CaMg2 alloy cannot absorb hydrogen at room temperature. While the addition of Ni to the CaMg2-based alloys resulted in room-temperature hydrogen absorption without an activation process, and a maximum hydrogen-absorption capacity of 5.65 wt%. The hydrolysis performance of hydrogenated CaMg2 and hydrogenated CaMg1.9Ni0.1 (abbreviated as H-CaMg2 and H-CaMg1.9Ni0.1 hereafter) was also evaluated. The hydrolysis reaction of H-CaMg2 occurred rapidly in water and resulted in a hydrogen yield of 800 mL/g. Furthermore, the hydrolysis properties of H-CaMg1.9Ni0.1 were significantly enhanced with the addition of Ni, as evidenced by a hydrogen yield of 1053 mL/g in 12 min, this yield is 94.7% of the theoretical hydrogen yield of H-CaMg1.9Ni0.1. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：929 / 935

页数：7

共 31 条

[1] Production of hydrogen from chemical hydrides via hydrolysis with steam [J].

Aiello, R ;

Sharp, JH ;

Matthews, MA .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1999, 24 (12) :1123-1130

[2] In situ synthesized one-dimensional porous Ni@C nanorods as catalysts for hydrogen storage properties of MgH2 [J].

An, Cuihua ;

Liu, Guang ;

Li, Li ;

Wang, Ying ;

Chen, Chengcheng ;

Wang, Yijing ;

Jiao, Lifang ;

Yuan, Huatang .

NANOSCALE, 2014, 6 (06) :3223-3230

[3]

Chiotti P., 1964, J LESS-COMMON MET, V7, P120

[4]

Christian J.W., 2003, Materials Today, V6, P53, DOI [10.1016/S1369-7021(03)00335-3, DOI 10.1016/S1369-7021(03)00335-3]

[5] Prediction of hydrogen desorption performance of Mg2Ni hydride reactors [J].

Chung, C. A. ;

Lin, Ci-Siang .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (23) :9409-9423

[6] Hydrogen production from highly corroding Mg-based materials elaborated by ball milling [J].

Grosjean, MH ;

Zidoune, M ;

Roué, L .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 404 :712-715

[7] Distribution and dynamics of hydrogen in the low-temperature phase of Mg2NiH4 studied by solid-state NMR [J].

Hayashi, S .

INORGANIC CHEMISTRY, 2002, 41 (08) :2238-2242

[8]

Hu LX, 2005, T NONFERR METAL SOC, V15, P965

[9] Magnesium-based nanocomposites chemical hydrides [J].

Huot, J ;

Liang, G ;

Schulz, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 353 (1-2) :L12-L15

[10] Analysis of crystallization kinetics [J].

Kelton, KF .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 :142-150

← 1 2 3 4 →