Mg-Ni-La based small hydrogen storage tank: kinetics, reversibility and reaction mechanisms

Dansirima Palmarin; Ngamwongwan Lappawat; Suthirakun Suwit; Utke Oliver; Utke Rapee

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Mg-Ni-La based small hydrogen storage tank: kinetics, reversibility and reaction mechanisms

机译：基于Mg-Ni-La的小氢储罐：动力学，可逆性和反应机制

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The improvement of de/rehydrogenation kinetics and reversibility of a Mg-Ni-La based small hydrogen storage tank by doping with TiF(4)and MWCNTs is reported for the first time. During sample preparation, MgH(2)milled with 20 wt% LaNi(5)and 5 wt% TiF(4)and MWCNTs produces Mg(2)NiH(4)and LaH3. Two-step dehydrogenation of Mg(2)NiH(4)and MgH(2)is detected at 295 and 350 degrees C, respectively. Hydrogen desorption and absorption of the tank complete within 150 and 16 min, respectively, together with reversible hydrogen storage capacity up to 4.00 wt% H-2(68% of theoretical value) upon 16 de/rehydrogenation cycles. Heat release from exothermic hydrogenation is removed effectively at the end of a double tube heat exchanger, where the reaction heat and heat transfer fluid are first in contact. Co-catalytic effects of Mg(2)NiH(4)and LaH(3)as well as good hydrogen diffusion benefit dehydrogenation kinetics and reversibility of the tank.

机译：首次报道了通过掺杂掺杂TIF（4）和MWCNTs的Mg-Ni-La基小储氢动力学的改善和Mg-Ni-La的小氢储罐的可逆性。在样品制剂期间，用20wt％LANI（5）和5wt％TIF（4）和MWCNT产生Mg（2）NIH（4）和LAH3的样品制剂期间。在295和350℃下检测Mg（2）NiH（4）和MgH（2）的两步脱氢。罐的氢解吸和罐的吸收分别在150和16分钟内完成，在16 de /再氢化循环上，可逆储存能力高达4.00wt％H-2（68％的理论值）。在双管热交换器的末端有效除去从放热氢化的热释放，其中反应热量和传热流体首先接触。 Mg（2）NIH（4）和LAH（3）以及良好的氢气扩散益处理动力学和罐的可逆性的共催化效应。

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《RSC Advances》 |2020年第55期|共7页
作者
Dansirima Palmarin; Ngamwongwan Lappawat; Suthirakun Suwit; Utke Oliver; Utke Rapee;
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Suranaree Univ Technol Inst Sci Sch Chem Nakhon Ratchasima 30000 Thailand;

Suranaree Univ Technol Inst Sci Sch Phys Nakhon Ratchasima 30000 Thailand;

Suranaree Univ Technol Inst Sci Sch Chem Nakhon Ratchasima 30000 Thailand;

Synchrotron Light Res Inst Publ Org Mech Syst Div Nakhon Ratchasima 30000 Thailand;

Suranaree Univ Technol Inst Sci Sch Chem Nakhon Ratchasima 30000 Thailand;

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正文语种 eng
中图分类化学;
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1. Mg-Ni-La based small hydrogen storage tank: kinetics, reversibility and reaction mechanisms [J] . Dansirima Palmarin, Ngamwongwan Lappawat, Suthirakun Suwit, RSC Advances . 2020,第55期

机译：基于Mg-Ni-La的小氢储罐：动力学，可逆性和反应机制
2. Mg–Ni–La based small hydrogen storage tank: kinetics, reversibility and reaction mechanisms [J] . Palmarin Dansirima, Lappawat Ngamwongwan, Suwit Suthirakun, RSC Advances . 2020,第55期

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Mg-Ni-La based small hydrogen storage tank: kinetics, reversibility and reaction mechanisms

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