Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys

Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys

The present work investigates structural and hydrogen storage properties of first time synthesized La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloy by arc melting process and ball milled to get it in nano structure form. XRD analysis of as-prepared alloy showed single phased hexagonal LaNi5-type structure wit...

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Main Authors: Priyanka Meena, Mukesh Jangir, Ramvir Singh, Vishnu Kumar Sharma, Indra Prabh Jain
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Journal of Materials Research and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785417301886
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spelling doaj-16661b102e6a4079b23ff6770fc0e2eb2020-11-25T03:53:22ZengElsevierJournal of Materials Research and Technology2238-78542018-04-0172173179Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloysPriyanka Meena0Mukesh Jangir1Ramvir Singh2Vishnu Kumar Sharma3Indra Prabh Jain4Centre for Non-Conventional Energy Resources, University of Rajasthan, Jaipur, India; Metallurgical and Material Engineering Department, MNIT, Jaipur, India; Physics Department, University of Rajasthan, Jaipur, India; Corresponding author.Centre for Non-Conventional Energy Resources, University of Rajasthan, Jaipur, IndiaPhysics Department, University of Rajasthan, Jaipur, IndiaMetallurgical and Material Engineering Department, MNIT, Jaipur, IndiaCentre for Non-Conventional Energy Resources, University of Rajasthan, Jaipur, IndiaThe present work investigates structural and hydrogen storage properties of first time synthesized La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloy by arc melting process and ball milled to get it in nano structure form. XRD analysis of as-prepared alloy showed single phased hexagonal LaNi5-type structure with 52 nm average particle size, which reduces to about 31 nm after hydrogenations. Morphological studies by SEM were undertaken to investigate the effect of hydrogenation of nanostructured alloy. EDX analysis confirmed elemental composition of the as-prepared alloy. Activation energy for hydrogen desorption was studied using TGA analysis and found to be −76.86 kJ/mol. Hydrogenation/dehydrogenation reactions and absorption kinetics were measured at temperature 100 °C. The equilibrium plateau pressure was determined to be 2 bar at 100 °C giving hydrogen storage capacity of about 2.1 wt%. Keywords: Hydrogen storage, La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloy, SEM, EDS, TGA, Hydrogenation/dehydrogenationhttp://www.sciencedirect.com/science/article/pii/S2238785417301886
collection DOAJ
language English
format Article
sources DOAJ
author Priyanka Meena
Mukesh Jangir
Ramvir Singh
Vishnu Kumar Sharma
Indra Prabh Jain
spellingShingle Priyanka Meena
Mukesh Jangir
Ramvir Singh
Vishnu Kumar Sharma
Indra Prabh Jain
Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
Journal of Materials Research and Technology
author_facet Priyanka Meena
Mukesh Jangir
Ramvir Singh
Vishnu Kumar Sharma
Indra Prabh Jain
author_sort Priyanka Meena
title Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
title_short Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
title_full Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
title_fullStr Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
title_full_unstemmed Synthesis and hydrogen storage of La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloys
title_sort synthesis and hydrogen storage of la23nd7.8ti1.1ni33.9co32.9al0.65 alloys
publisher Elsevier
series Journal of Materials Research and Technology
issn 2238-7854
publishDate 2018-04-01
description The present work investigates structural and hydrogen storage properties of first time synthesized La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloy by arc melting process and ball milled to get it in nano structure form. XRD analysis of as-prepared alloy showed single phased hexagonal LaNi5-type structure with 52 nm average particle size, which reduces to about 31 nm after hydrogenations. Morphological studies by SEM were undertaken to investigate the effect of hydrogenation of nanostructured alloy. EDX analysis confirmed elemental composition of the as-prepared alloy. Activation energy for hydrogen desorption was studied using TGA analysis and found to be −76.86 kJ/mol. Hydrogenation/dehydrogenation reactions and absorption kinetics were measured at temperature 100 °C. The equilibrium plateau pressure was determined to be 2 bar at 100 °C giving hydrogen storage capacity of about 2.1 wt%. Keywords: Hydrogen storage, La23Nd7.8Ti1.1Ni33.9Co32.9Al0.65 alloy, SEM, EDS, TGA, Hydrogenation/dehydrogenation
url http://www.sciencedirect.com/science/article/pii/S2238785417301886
work_keys_str_mv AT priyankameena synthesisandhydrogenstorageofla23nd78ti11ni339co329al065alloys
AT mukeshjangir synthesisandhydrogenstorageofla23nd78ti11ni339co329al065alloys
AT ramvirsingh synthesisandhydrogenstorageofla23nd78ti11ni339co329al065alloys
AT vishnukumarsharma synthesisandhydrogenstorageofla23nd78ti11ni339co329al065alloys
AT indraprabhjain synthesisandhydrogenstorageofla23nd78ti11ni339co329al065alloys
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