EFFECT OF SiO2 COATING ON ANTI-POISONING PROPERTIES OF La-Ni-Al-Mn HYDROGEN STORAGE ALLOYS

Shi Hongqiang; Guo Xiumei; Li Zhinian; Wang Shumao; Yuan Baolong; Jiang Lijun

doi:10.19912/j.0254-0096.tynxb.2022-0535

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (6) : 355-361. DOI: 10.19912/j.0254-0096.tynxb.2022-0535

EFFECT OF SiO₂ COATING ON ANTI-POISONING PROPERTIES OF La-Ni-Al-Mn HYDROGEN STORAGE ALLOYS

Shi Hongqiang^1-3, Guo Xiumei^1,2, Li Zhinian^1,2, Wang Shumao^1,2, Yuan Baolong^1,2, Jiang Lijun^1,2,4

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Abstract

Using LaNi_3.7Al_0.75Mn_0.55（La-Ni-Al-Mn） hydrogen storage alloys as the matrix, a low-cost fumed silica sol coating method was used to study the anti-poisoning modification of hydrogen storage alloy. The La-Ni-Al-Mn/SiO₂composites show good anti-poisoning performance and cycle stability. After 50 cycles, the hydrogen absorption rate of the composites remains unchanged, and the hydrogen absorption capacity reaches 1.060%. The anti-poisoning mechanism of the composite material is as follows： the amorphous SiO₂ coating layer forms a hydrogen permeation point with a short-range orderly arrangement of atoms during the heat treatment process, which effectively blocks the permeation of macromolecular gases such as O₂, N₂. Through the optimization of the heat treatment process of the composites, the optimal heat treatment process is finally obtained at 200 ℃ for 2 h.

Key words

SiO₂ / coating / hydrogen storage alloy / La-Ni-Al-Mn/SiO₂composites / anti-poisoning resistance

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Shi Hongqiang, Guo Xiumei, Li Zhinian, Wang Shumao, Yuan Baolong, Jiang Lijun. EFFECT OF SiO₂ COATING ON ANTI-POISONING PROPERTIES OF La-Ni-Al-Mn HYDROGEN STORAGE ALLOYS[J]. Acta Energiae Solaris Sinica. 2022, 43(6): 355-361 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0535

References

[1] CHENG H H, YANG H G, LI S L, et al.Effect of hydrogen absorption/desorption cycling on hydrogen storage performance of LaNi_4.25Al_0.75[J]. Journal alloys compounds, 2006, 453(4): 448-452.
[2] JEU R A M D, WAGNER W, HOLMES T R H, et al. Global soil moisture patterns observed by space borne microwave radiometers and scatterometers[J]. Surveys in geophysics, 2008, 29(4): 399-420.
[3] HAN J I, LEE J Y.The effect of CO impurity on the hydrogenation properties of LaNi₅, LaNi_4.7Al_0.3 and MmNi_4.5Al_0.5 during hydriding-dehydriding cycling[J]. Journal of the less-common metals, 1989, 152: 319-327.
[4] RUSMAN N A A, DAHARI M. A review on the current progress of metal hydrides material for solid-state hydrogen storage applications[J]. International journal of hydrogen energy, 2016, 41(28): 12108-12126.
[5] WANG X L, IWATA K, SUDA S.Hydrogen purification using fluorinated LaNi_4.7Al_0.3 alloy[J]. Journal of alloys and compounds, 1995, 231(1-2): 860-864.
[6] WANG X L, IWATA K, SUDA S.Effects of carbon monoxide on the hydriding reactions of the untreated and fluorinated LaNi_4.7Al_0.3 alloys[J]. Journal of alloys and compounds, 1995, 231(1-2): 829-834.
[7] 向富乐, 郭秀梅, 武媛方, 等. ZrNi基储氢合金表面化学镀钯膜的动力学机制[J]. 稀有金属, 2019, 43(7): 713-718.
XIANG F L, GUO X M, WU Y F, et al.Kinetic mechanism of electroless palladium coating on surface of ZrNi based hydrogen storage alloy[M]. Chinese journal of rare metals, 2019, 43(7): 713-718.
[8] 郭秀梅, 王树茂, 李志念, 等. 氢同位素回收用Zr-Ni合金抗毒化性能研究[C]//中国核学会, 成都, 2015.
GUO X M, WANG S M, LI Z N, et al.Study on the poisoning resistance of Zr-Ni alloy for hydrogen isotope recovery[C]//Chinese Nuclear Society, Chengdu, 2015.
[9] REN J, WILLIAMS M, LOTOTSKYY M, et al.Improved tolerance of Pd/Cu-treated metal hydride alloys towards air impurities[J]. International journal of hydrogen energy, 2010, 35(16): 8626-8630.
[10] 韩兴博, 杨洪广, 陈伟, 等. SiO₂包覆对含微量CO氢环境中LaNi_4.25Al_0.75吸氢动力学性能的影响[J]. 稀有金属材料与工程, 2013, 42(12): 2525-2529.
HAN X B,YANG H G,CHEN W, et al.Effect of SiO₂ encapsulation on hydrogen absorption kinetics of LaNi_4.25Al_0.75 in hydrogen amosphere with tiny amount of CO impurity[J]. Rare metal metals and engineering, 2013, 42(12): 2525-2529.
[11] JIANG Y W, LIU X P, JIANG L J, et al.Effect of Mn substitution on hydrogen storage properties of LaNi_4.25-_x Al_0.75Mn_x alloy[J]. Rare metals, 2006, 25(10): 243-246.
[12] 程宏辉, 杨洪广, 李慎兰, 等. LaNi_4.25Al_0.75/SiO₂复合材料的储氢特性研究[J]. 稀有金属材料与工程, 2008, 37(8): 1427-1430.
CHENG H H, YANG H G, LI S L, et al.Hydrogen storage performance of LaNi_4.25Al_0.75/SiO₂ composite[J]. Rare metal metals and engineering, 2008, 37(8): 1427-1430.
[13] 丁静, 杨晓西, 杨建平, 等. 热处理对多微孔活性硅胶吸附特性的影响[J]. 华南理工大学学报(自然科学版), 1999, 27(2): 44-48.
DING J, YANG X X, YANG J P, et al.The effects of thermal treatment on the adsorption properties of microporous activated silica gel[J]. Journal of South China University of Technology(natural science), 1999, 27(2): 44-48.
[14] 汪秀全, 陈奇, 宋鹂, 等. 热处理对多孔SiO₂块材结构和性能的影响[J]. 华东理工大学学报(自然科学版), 2006, 32(3): 296-299.
WANG X Q, CHEN Q, SONG L, et al.Effect of heating temperature on structure and properties of porous SiO₂ blocks[J]. Journal of East China University of Science and Technology(natural science), 2006, 32(3): 296-299.
[15] 何飞, 赫晓东, 李垚. 二氧化硅干凝胶的制备与结构分析[J]. 材料工程, 2005, 12(4): 14-19.
HE F, HE X D, LI Y.Preparation and structure analysis of silica xerogels[J]. Materials engineering, 2005, 12(4): 14-19.
[16] 何飞, 赫晓东, 李垚,等. 二氧化硅干凝胶孔结构影响因素的分析[C]//第十届全国青年材料科学技术研讨会, 北京, 2005: 1775-1780.
HE F, HE X D, LI Y, et al.Analysis of influencing factors on pore structure of silica xerogels[C]//The 10th National Youth Materials Science and Technology Symposium, Beijing, 2005: 1775-1780.
[17] SANDROCK G D, GOODELL P D.Cyclic life of meta hydrides with impure hydrogen: overview and engineering considerations[J]. Journal of the less common metals, 1984, 104(1): 159-173.
[18] 潘昌盛, 郭秀梅, 王树茂, 等. Pd包覆TiZrNiCo的抗毒化及动力学性能[J]. 中国有色金属学报, 2015, 25(2): 449-457.
PAN C S, GUO X M, WANG S M, et al.Poisoning resistance and kinetics properties of TiZrNiCo coated by Pd[J]. Chinese journal of nonferrous metals, 2015, 25(2): 449-457.