Effect of the nanometric LiFePO4 on the hydrogen storage properties of MgH2

被引:26
作者
Cheng, Ying [1 ]
Zhang, Wei [2 ]
Liu, Jian [1 ]
Cheng, Kai [1 ]
Zhao, Zhen [1 ]
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China
[2] Yanshan Univ, Hebei Key Lab Appl Chem, Coll Environm & Chem Engn, Qinhuangdao 066004, Peoples R China
基金
北京市自然科学基金; 中国国家自然科学基金;
关键词
Nanometric phosphoric complex salt; Hydrogen storage; Magnesium hydride; Hydrogen kinetics; DESORPTION PROPERTIES; DEHYDROGENATION PROPERTIES; MAGNESIUM; SHELL; NANOPARTICLES; PERFORMANCE; SORPTION; TI; MICROSTRUCTURE; BEHAVIORS;
D O I
10.1016/j.ijhydene.2016.10.084
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
A nanometric phosphoric complex salt additive was synthesized by hydrothermal method. Its catalytic effect on the hydrogen storage properties of MgH2 was investigated. MgH2+20 wt.% LiFePO4 obtained by ball-milling process had an ability of absorbing 2.03 wt.% hydrogen at 423 K in 21 min, and only 0.98 wt.% could be absorbed by MgH2 for the identical condition. 3.61 wt.% hydrogen could be released by the composite at 623 K in 21 min, whereas only 2.23 wt.% was desorbed by as-received MgH2. Doping by nanometric LiFePO4 expressively enhanced the hydrogenation/dehydrogenation properties of MgH2, and changed the rate-controlling steps from three-dimensional interfacial reaction to one-dimensional diffusion process. Meanwhile, the onset dehydrogenation temperature for MgH2+20 wt.% LiFePO4 was 653 K, which was found to be 60 K lower than the as-received MgH2. In addition, the addition of LiFePO4 also lowered the activation energy (Ea) 31 kJ mol(-1). Based on XRD and XPS analysis, the in situ formed phases LiMgPO4 and Fe, which are produced by the reaction between MgH2 and LiFePO4, may be responsible for the remarkable improvement in hydrogen storage properties of MgH2. (C) 2016 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
引用
收藏
页码:356 / 365
页数:10
相关论文
共 58 条
[1]  
Abdessameud S, 2014, SCI WORLD J, V2014, P16
[2]   Hydrogen Sorption Cycling Kinetic Stability and Microstructure of Single-Walled Carbon Nanotube (SWCNT) Magnesium Hydride (MgH2) Nanocomposites [J].
Amirkhiz, Babak Shalchi ;
Danaie, Mohsen ;
Barnes, Michael ;
Simard, Benoit ;
Mitlin, David .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (07) :3265-3275
[3]   A comparative study of magnetic properties of LiFePO4 and LiMnPO4 [J].
Arcon, D ;
Zorko, A ;
Dominko, R ;
Jaglicic, Z .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (30) :5531-5548
[4]   Elastic properties of perovskite-type hydride NaMgH3 for hydrogen storage [J].
Bouhadda, Y. ;
Bououdina, M. ;
Fenineche, N. ;
Boudouma, Y. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (03) :1484-1489
[5]   Raman and FTIR spectroscopic study of LixFePO4 (0 ≤ x ≤ 1) [J].
Burba, CM ;
Frech, R .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (07) :A1032-A1038
[6]   Mg-TM (TM: Ti, Nb, V, Co, Mo or Ni) core-shell like nanostructures: synthesis, hydrogen storage performance and catalytic mechanism [J].
Cui, Jie ;
Liu, Jiangwen ;
Wang, Hui ;
Ouyang, Liuzhang ;
Sun, Dalin ;
Zhu, Min ;
Yao, Xiangdong .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (25) :9645-9655
[7]   The effect of V, VCl3 and VC catalysts on the MgH2 hydrogen sorption properties [J].
da Conceicao, M. O. T. ;
Brum, M. C. ;
dos Santos, D. S. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 586 :S101-S104
[8]   Reaction between LiBH4 and MgH2 induced by high-energy ball milling [J].
Ding, Zhao ;
Zhao, Xuzhe ;
Shaw, Leon L. .
JOURNAL OF POWER SOURCES, 2015, 293 :236-245
[9]   Superior hydrogen storage properties of MgH2-10 wt.% TiC composite [J].
Fan, Mei-Qiang ;
Liu, Shu-sheng ;
Zhang, Yao ;
Zhang, Jian ;
Sun, Li-Xian ;
Xu, Fen .
ENERGY, 2010, 35 (08) :3417-3421
[10]   High catalytic efficiency of amorphous TiB2 and NbB2 nanoparticles for hydrogen storage using the 2LiBH4-MgH2 system [J].
Fan, Xiulin ;
Xiao, Xuezhang ;
Chen, Lixin ;
Wang, Xinhua ;
Li, Shouquan ;
Ge, Hongwei ;
Wang, Qidong .
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (37) :11368-11375