Investigation of Catalytic Effects and Compositional Variations in Desorption Characteristics of LiNH2-nanoMgH2

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dc.contributor.authorSrinivasan, S. S.
dc.contributor.authorDemirocak, Dervis Emre
dc.contributor.authorGoswami, D. Y.
dc.contributor.authorStefanakos, E. K.
dc.date.accessioned2019-10-22T16:25:47Z
dc.date.available2019-10-22T16:25:47Z
dc.date.issued2017
dc.description.abstractLiNH2 and a pre-processed nanoMgH2 with 1:1 and 2:1 molar ratios were mechanochemically milled in a high-energy planetary ball mill under inert atmosphere, and at room temperature and atmospheric pressure. Based on the thermogravimetric analysis (TGA) experiments, 2LiNH2-nanoMgH2 demonstrated superior desorption characteristics when compared to the LiNH2-nanoMgH2. The TGA studies also revealed that doping 2LiNH2-nanoMgH2 base material with 2 wt. % nanoNi catalyst enhances the sorption kinetics at lower temperatures. Additional investigation of different catalysts showed improved reaction kinetics (weight percentage of H2 released per minute) of the order TiF3 > nanoNi > nanoTi > nanoCo > nanoFe > multiwall carbon nanotube (MWCNT), and reduction in the on-set decomposition temperatures of the order nanoCo > TiF3 > nanoTi > nanoFe > nanoNi > MWCNT for the base material 2LiNH2- nanoMgH2. Pristine and catalyst-doped 2LiNH2-nanoMgH2 samples were further probed by X-ray diffraction, Fourier transform infrared spectroscopy, transmission and scanning electron microscopies, thermal programmed desorption and pressure-composition-temperature measurements to better understand the improved performance of the catalyst-doped samples, and the results are discussed.en_US
dc.identifier.citationS Srinivasan, DE Demirocak, Y Goswami & E Stefanakos. Investigation of Catalytic Effects and Compositional Variations in Desorption Characteristics of LiNH2-nanoMgH2. Applied Sciences, 2017, 7, 701.en_US
dc.identifier.urihttps://hdl.handle.net/10657.1/1608
dc.relation.ispartofseriesApplied Sciences;Vol. 7
dc.titleInvestigation of Catalytic Effects and Compositional Variations in Desorption Characteristics of LiNH2-nanoMgH2en_US
dc.typeArticleen_US

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