Mg(AlH4)2是一种理想的储氢材料,理论储氢容量高达7.5％(质量分数).然而较高的起始放氢温度在很大程度上制约了Mg(AlH4)2的应用.正交试验设计方法能够在较少的试验次数中掌握可靠的实验数据以及各因素之间的内在联系从而确定最优的实验方案,特别适用与多因素多水平的实验条件研究.利用高能球磨法成功地制备了Mg(AlH4)2,并将NaAlHa和TiF3引入到该体系中.利用傅里叶红外转换测试仪(FTIR)对产物的结构进行表征,程序控温脱附(TPD)对产物的放氢温度和放氢量进行测定.此外,采用三因素三水平的L9(33)正交试验法,以Mg(AlH4)2的起始放氢温度为指标,以NaAlH4的添加量、TiF3的添加量和球磨间隔时间为因素,同时考察以上3项重要因素对降低Mg(AlH4)2起始放氢温度的影响.通过对正交试验的系统分析发现,NaAlH4的添加量对降低Mg(AlH4)2的起始放氢温度影响最显著,其次为TiF3的添加量,最后为球磨间隔时间.得到最佳试验条件,在最佳条件下Mg(AlH4)2的起始放氢温度仅为72℃,与未添加的相比放氢温度降低了67 q℃,放氢性能明显提高.
参考文献
| [1] | Pukazhselvan, D.;Kumar, V.;Singh, S.K. .High capacity hydrogen storage: Basic aspects, new developments and milestones (Review)[J].Nano Energy,2012(4):566-589. |
| [2] | 马志鸿,李波,赵栋梁,李霞,张国芳,张羊换.快淬纳米晶/非晶Mg2-xLaxNi （x=0～0.6）合金的贮氢动力学[J].稀有金属,2012(01):67-73. |
| [3] | 倪成员,周怀营,王仲民,欧气局,马宇飞.宽温型AB5储氢合金结构及其电化学性能研究[J].稀有金属,2012(02):229-235. |
| [4] | Shin-ichi Orimo;Yuko Nakamori;Jennifer R.Eliseo .Complex Hydrides for Hydrogen Storage[J].Chemical Reviews,2007(10):4111-4132. |
| [5] | Jason Graetz;James Wegrzyn;James J. Reilly .Regeneration of Lithium Aluminum Hydride[J].Journal of the American Chemical Society,2008(52):17790-17794. |
| [6] | Xiong, R.;Sang, G.;Yan, X.;Zhang, G.;Xu, Q.;Zhang, H. .Separation and characterization of the active species in Ti-doped NaAlH4[J].Chemical communications,2013(20):2046-2048. |
| [7] | 廖骞,张静,丁德军,张立华,尹泓卜.新型轻质储氢材料-金属铝氢化物的研究进展[J].稀有金属,2012(03):483-490. |
| [8] | Yanjing Yang;Mingxia Gao;Yongfeng Liu;Jianhui Wang;Jian Gu;Hongge Pan;Zhengxiao Guo .Multi-hydride systems with enhanced hydrogen storage properties derived from Mg(BH_4)_2 and LiAlH_4[J].International journal of hydrogen energy,2012(14):10733-10742. |
| [9] | Yongfeng Liu;Yuepeng Pang;Xin Zhang;Yifan Zhou;Mingxia Gao;Hongge Pan .Synthesis and hydrogen storage thermodynamics and kinetics of Mg(AlH_4)_2 submicron rods[J].International journal of hydrogen energy,2012(23):18148-18154. |
| [10] | M. Sterlin Leo Hudson;D. Pukazhselvan;G. Irene Sheeja;O.N. Srivastava .Studies on synthesis and dehydrogenation behavior of magnesium alanate and magnesium-sodium alanate mixture[J].International journal of hydrogen energy,2007(18):4933-4938. |
| [11] | Liu, D.;Liu, Q.;Si, T.;Zhang, Q.;Fang, F.;Sun, D.;Ouyang, L.;Zhu, M. .Superior hydrogen storage properties of LiBH_4 catalyzed by Mg(AlH_4)_2[J].Chemical communications,2011(20):5741-5743. |
| [12] | Li Li;Fangyuan Qiu;Yijing Wang .TiN catalyst for the reversible hydrogen storage performance of sodium alanate system[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2012(27):13782-13787. |
| [13] | Li Li;Fangyuan Qiu;Yaping Wang .Crystalline TiB2: an efficient catalyst for synthesis and hydrogen desorption/absorption performances of NaAlH4 system[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2012(7):3127-3132. |
| [14] | 付卫国,刘晓鹏,叶建华,闫敏艳,王树茂,蒋利军.KF掺杂量对MgH2-2LiNH2体系储氢性能影响的研究[J].稀有金属,2013(04):526-530. |
| [15] | 常国峰,倪淮生,许恩传,李友才,林凡,宁可望.高压质子交换膜燃料电池正交试验研究[J].机械工程学报,2009(07):204-209. |
| [16] | Fichtner M.;Engel J.;Fuhr O.;Gloss A.;Rubner O.;Ahlrichs R. .The structure of magnesium alanate[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2003(22):7060-7066. |
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