188js——AG————为mg4h2zp a 是什么版本不是mgh2？

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Feeding farm animals in Australia
Sydney [etc.] : Angus and Robertson
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STACKS ; 299F03
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Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.Hydriding/Dehydriding Properties of an MgH2+20%(w) MgTiO3 Composi...: Ingenta Connect
Volume 30,&Number 12
Authors: ;&;&;&;&
Source: , Volume 30,&Number 12, 15 December 2014, pp. )Publisher:
With the aim of decreasing the dehydriding temperature and improving the hydriding/dehydriding kinetic properties of MgH2, we prepared MgH2+20%(w) MgTiO3 composite via ball-milling, and investigated the hydrogen storage properties of the composite.
X- ray diffraction (XRD) results showed that the MgTiO3 decomposed into Mg2TiO4 and TiO2 during the ball-milling. These two resulting compounds remained stable during the hydriding/dehydriding processes, working as catalysts for the hydriding/dehydriding.
Temperatureprogrammed- desorption (TPD) and hydriding/dehydriding kinetics tests showed that doping MgH2 with MgTiO3 lowered the onset dehydrogenation temperature of MgH2 from 389 to 249 , as well as increasing the hydrogen absorption amount from 0.977%(w)
to 2.902%(w) at 150 , and increasing the desorption amount from 2.319% (w) to 3.653%(w) at 350 . The MgTiO3 additive decreased the dehydriding activation energy of MgH2 from 116 to 95.7 kJ·mol-1. The thermodynamic and kinetic performance
of the MgH2+20%(w) MgTiO3 composite was significantly improved compared with pristine MgH2, which was attributed to the high catalytic activity of the (insitu formed) TiO2 and Mg2TiO4 during the ball-milling and dehydriding
processes.
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