Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications
A new solid-state hydrogen storage system of magnesium hydride (MgH 2 ) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr 2 Pd) nanopowder was fabricated using a high-energy ball milling technique. The end-product obtained after 50 h of milling was consolidated into bulk buttons, usin...
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| creator | El-Eskandarany, M. Sherif Banyan, Mohammad Al-Ajmi, Fahad |
| description | A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique. The end-product obtained after 50 h of milling was consolidated into bulk buttons, using a hot-pressing technique at 350 °C. The results have shown that this consolidation step, followed by the repetitive pressing at ambient temperature did not affect the nanocrystalline characteristics of pressed powders. Recycling pressing demonstrated beneficial effects of plastic deformation and lattice imperfections on Mg, leading to its enhanced hydrogenation/dehydrogenation kinetics and cycle-life-time performance compared with untreated samples. The results elucidated that spherical, hard, nanopowder of MG-Zr
2
Pd were forced to penetrate the Mg/MgH
2
matrix to create micro/nanopore structures upon pressing for 50 cycles. These ultrafine spherical metallic glassy particles (∼400 nm in diameter) acted as a micro-milling media for reducing the particle size of MgH
2
powders into submicron particles. In addition, they played a vital role as grain growth inhibitors to prevent the undesired growth of Mg grains upon the application of a moderate temperature in the range of 50 °C to 350 °C. The apparent activation energy for the decomposition of this new consolidated nanocomposite material was measured to be 92.2 kJ mol
−1
, which is far below than the measured value of pure nanocrystalline MgH
2
powders (151.2 kJ mol
−1
) prepared in the present study. This new binary system possessed superior hydrogenation kinetics, indicated by the rather low temperature (200 °C) required to uptake 6.08 wt% H
2
within 7.5 min. More importantly, the system revealed excellent dehydrogenation kinetics at 225 °C as implied by the limited time needed to release 6.1 wt% H
2
in 10 min. The MgH
2
/5 wt% MG-Zr
2
Pd system showed a high performance for cyclability, implied by the achievement of continuous cycles (338 cycles) at 225 °C without degradation over 227 h.
A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique. |
| doi_str_mv | 10.1039/c9ra05121j |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_proquest_miscellaneous_2661484043</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2287881304</sourcerecordid><originalsourceid>FETCH-LOGICAL-c454t-5f85f42b91afdec9f1bef175b6ecfa77d96c43964d748343f986a0064a2b10283</originalsourceid><addsrcrecordid>eNp9kk1rFTEUhoNYbKnduFcibkQYTWYymWRTKJfWWgqC6Dpk8nFvLjPJmMy0jL_DH9xMb3utLswmh_M-eTkfAeAVRh8xqvgnxaNENS7x9hk4KhGhRYkof_4kPgQnKW1RPjRzFL8Ah1VdV4hwfgR-n_sbF4PvjR9l183QRme8zoGXPqg4pyXtvIG9XHuT3NTDzayj0wZqo0KUo9Hw1o0b2Jt7VMF1J1Oai18uquCXB0POS71Ei-kQbrWJCdoQoZ1MB5XpOiiHIb-Vows-vQQHVnbJnDzcx-DHxfn31WVx_fXzl9XZdaFITcaitqy2pGw5ljbXwi1ujcVN3VKjrGwazakiFadEN4RVpLKcUZmnQGTZYlSy6hic7nyHqe2NVnkGUXZiiK6XcRZBOvG34t1GrMON4KhBDNFs8P7BIIafk0mj6F1a2pHehCmJklJMGEGkyui7f9BtmKLP7YmyZA1jOG8kUx92lIohpWjsvhiMxLJvseLfzu73fZXhN0_L36OP283A6x0Qk9qrfz5M1t_-TxeDttUd07PAfQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2287881304</pqid></control><display><type>article</type><title>Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central Open Access</source><source>PubMed Central</source><creator>El-Eskandarany, M. Sherif ; Banyan, Mohammad ; Al-Ajmi, Fahad</creator><creatorcontrib>El-Eskandarany, M. Sherif ; Banyan, Mohammad ; Al-Ajmi, Fahad</creatorcontrib><description>A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique. The end-product obtained after 50 h of milling was consolidated into bulk buttons, using a hot-pressing technique at 350 °C. The results have shown that this consolidation step, followed by the repetitive pressing at ambient temperature did not affect the nanocrystalline characteristics of pressed powders. Recycling pressing demonstrated beneficial effects of plastic deformation and lattice imperfections on Mg, leading to its enhanced hydrogenation/dehydrogenation kinetics and cycle-life-time performance compared with untreated samples. The results elucidated that spherical, hard, nanopowder of MG-Zr
2
Pd were forced to penetrate the Mg/MgH
2
matrix to create micro/nanopore structures upon pressing for 50 cycles. These ultrafine spherical metallic glassy particles (∼400 nm in diameter) acted as a micro-milling media for reducing the particle size of MgH
2
powders into submicron particles. In addition, they played a vital role as grain growth inhibitors to prevent the undesired growth of Mg grains upon the application of a moderate temperature in the range of 50 °C to 350 °C. The apparent activation energy for the decomposition of this new consolidated nanocomposite material was measured to be 92.2 kJ mol
−1
, which is far below than the measured value of pure nanocrystalline MgH
2
powders (151.2 kJ mol
−1
) prepared in the present study. This new binary system possessed superior hydrogenation kinetics, indicated by the rather low temperature (200 °C) required to uptake 6.08 wt% H
2
within 7.5 min. More importantly, the system revealed excellent dehydrogenation kinetics at 225 °C as implied by the limited time needed to release 6.1 wt% H
2
in 10 min. The MgH
2
/5 wt% MG-Zr
2
Pd system showed a high performance for cyclability, implied by the achievement of continuous cycles (338 cycles) at 225 °C without degradation over 227 h.
A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c9ra05121j</identifier><identifier>PMID: 35530499</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Ambient temperature ; Ball milling ; Chemistry ; Consolidation ; Deformation effects ; Dehydrogenation ; Fuel cells ; Grain growth ; Hydrides ; Hydrogen storage ; Hydrogenation ; Magnesium ; Nanocomposites ; Nanocrystals ; Palladium ; Plastic deformation ; Porosity ; Pressing ; Ultrafines ; Zirconium</subject><ispartof>RSC advances, 2019-09, Vol.9 (48), p.27987-27995</ispartof><rights>This journal is © The Royal Society of Chemistry.</rights><rights>Copyright Royal Society of Chemistry 2019</rights><rights>This journal is © The Royal Society of Chemistry 2019 The Royal Society of Chemistry</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c454t-5f85f42b91afdec9f1bef175b6ecfa77d96c43964d748343f986a0064a2b10283</citedby><cites>FETCH-LOGICAL-c454t-5f85f42b91afdec9f1bef175b6ecfa77d96c43964d748343f986a0064a2b10283</cites><orcidid>0000-0003-1851-7553 ; 0000-0002-5513-3260</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070806/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070806/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35530499$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>El-Eskandarany, M. Sherif</creatorcontrib><creatorcontrib>Banyan, Mohammad</creatorcontrib><creatorcontrib>Al-Ajmi, Fahad</creatorcontrib><title>Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications</title><title>RSC advances</title><addtitle>RSC Adv</addtitle><description>A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique. The end-product obtained after 50 h of milling was consolidated into bulk buttons, using a hot-pressing technique at 350 °C. The results have shown that this consolidation step, followed by the repetitive pressing at ambient temperature did not affect the nanocrystalline characteristics of pressed powders. Recycling pressing demonstrated beneficial effects of plastic deformation and lattice imperfections on Mg, leading to its enhanced hydrogenation/dehydrogenation kinetics and cycle-life-time performance compared with untreated samples. The results elucidated that spherical, hard, nanopowder of MG-Zr
2
Pd were forced to penetrate the Mg/MgH
2
matrix to create micro/nanopore structures upon pressing for 50 cycles. These ultrafine spherical metallic glassy particles (∼400 nm in diameter) acted as a micro-milling media for reducing the particle size of MgH
2
powders into submicron particles. In addition, they played a vital role as grain growth inhibitors to prevent the undesired growth of Mg grains upon the application of a moderate temperature in the range of 50 °C to 350 °C. The apparent activation energy for the decomposition of this new consolidated nanocomposite material was measured to be 92.2 kJ mol
−1
, which is far below than the measured value of pure nanocrystalline MgH
2
powders (151.2 kJ mol
−1
) prepared in the present study. This new binary system possessed superior hydrogenation kinetics, indicated by the rather low temperature (200 °C) required to uptake 6.08 wt% H
2
within 7.5 min. More importantly, the system revealed excellent dehydrogenation kinetics at 225 °C as implied by the limited time needed to release 6.1 wt% H
2
in 10 min. The MgH
2
/5 wt% MG-Zr
2
Pd system showed a high performance for cyclability, implied by the achievement of continuous cycles (338 cycles) at 225 °C without degradation over 227 h.
A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique.</description><subject>Ambient temperature</subject><subject>Ball milling</subject><subject>Chemistry</subject><subject>Consolidation</subject><subject>Deformation effects</subject><subject>Dehydrogenation</subject><subject>Fuel cells</subject><subject>Grain growth</subject><subject>Hydrides</subject><subject>Hydrogen storage</subject><subject>Hydrogenation</subject><subject>Magnesium</subject><subject>Nanocomposites</subject><subject>Nanocrystals</subject><subject>Palladium</subject><subject>Plastic deformation</subject><subject>Porosity</subject><subject>Pressing</subject><subject>Ultrafines</subject><subject>Zirconium</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kk1rFTEUhoNYbKnduFcibkQYTWYymWRTKJfWWgqC6Dpk8nFvLjPJmMy0jL_DH9xMb3utLswmh_M-eTkfAeAVRh8xqvgnxaNENS7x9hk4KhGhRYkof_4kPgQnKW1RPjRzFL8Ah1VdV4hwfgR-n_sbF4PvjR9l183QRme8zoGXPqg4pyXtvIG9XHuT3NTDzayj0wZqo0KUo9Hw1o0b2Jt7VMF1J1Oai18uquCXB0POS71Ei-kQbrWJCdoQoZ1MB5XpOiiHIb-Vows-vQQHVnbJnDzcx-DHxfn31WVx_fXzl9XZdaFITcaitqy2pGw5ljbXwi1ujcVN3VKjrGwazakiFadEN4RVpLKcUZmnQGTZYlSy6hic7nyHqe2NVnkGUXZiiK6XcRZBOvG34t1GrMON4KhBDNFs8P7BIIafk0mj6F1a2pHehCmJklJMGEGkyui7f9BtmKLP7YmyZA1jOG8kUx92lIohpWjsvhiMxLJvseLfzu73fZXhN0_L36OP283A6x0Qk9qrfz5M1t_-TxeDttUd07PAfQ</recordid><startdate>20190906</startdate><enddate>20190906</enddate><creator>El-Eskandarany, M. Sherif</creator><creator>Banyan, Mohammad</creator><creator>Al-Ajmi, Fahad</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-1851-7553</orcidid><orcidid>https://orcid.org/0000-0002-5513-3260</orcidid></search><sort><creationdate>20190906</creationdate><title>Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications</title><author>El-Eskandarany, M. Sherif ; Banyan, Mohammad ; Al-Ajmi, Fahad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-5f85f42b91afdec9f1bef175b6ecfa77d96c43964d748343f986a0064a2b10283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Ambient temperature</topic><topic>Ball milling</topic><topic>Chemistry</topic><topic>Consolidation</topic><topic>Deformation effects</topic><topic>Dehydrogenation</topic><topic>Fuel cells</topic><topic>Grain growth</topic><topic>Hydrides</topic><topic>Hydrogen storage</topic><topic>Hydrogenation</topic><topic>Magnesium</topic><topic>Nanocomposites</topic><topic>Nanocrystals</topic><topic>Palladium</topic><topic>Plastic deformation</topic><topic>Porosity</topic><topic>Pressing</topic><topic>Ultrafines</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>El-Eskandarany, M. Sherif</creatorcontrib><creatorcontrib>Banyan, Mohammad</creatorcontrib><creatorcontrib>Al-Ajmi, Fahad</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>El-Eskandarany, M. Sherif</au><au>Banyan, Mohammad</au><au>Al-Ajmi, Fahad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications</atitle><jtitle>RSC advances</jtitle><addtitle>RSC Adv</addtitle><date>2019-09-06</date><risdate>2019</risdate><volume>9</volume><issue>48</issue><spage>27987</spage><epage>27995</epage><pages>27987-27995</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique. The end-product obtained after 50 h of milling was consolidated into bulk buttons, using a hot-pressing technique at 350 °C. The results have shown that this consolidation step, followed by the repetitive pressing at ambient temperature did not affect the nanocrystalline characteristics of pressed powders. Recycling pressing demonstrated beneficial effects of plastic deformation and lattice imperfections on Mg, leading to its enhanced hydrogenation/dehydrogenation kinetics and cycle-life-time performance compared with untreated samples. The results elucidated that spherical, hard, nanopowder of MG-Zr
2
Pd were forced to penetrate the Mg/MgH
2
matrix to create micro/nanopore structures upon pressing for 50 cycles. These ultrafine spherical metallic glassy particles (∼400 nm in diameter) acted as a micro-milling media for reducing the particle size of MgH
2
powders into submicron particles. In addition, they played a vital role as grain growth inhibitors to prevent the undesired growth of Mg grains upon the application of a moderate temperature in the range of 50 °C to 350 °C. The apparent activation energy for the decomposition of this new consolidated nanocomposite material was measured to be 92.2 kJ mol
−1
, which is far below than the measured value of pure nanocrystalline MgH
2
powders (151.2 kJ mol
−1
) prepared in the present study. This new binary system possessed superior hydrogenation kinetics, indicated by the rather low temperature (200 °C) required to uptake 6.08 wt% H
2
within 7.5 min. More importantly, the system revealed excellent dehydrogenation kinetics at 225 °C as implied by the limited time needed to release 6.1 wt% H
2
in 10 min. The MgH
2
/5 wt% MG-Zr
2
Pd system showed a high performance for cyclability, implied by the achievement of continuous cycles (338 cycles) at 225 °C without degradation over 227 h.
A new solid-state hydrogen storage system of magnesium hydride (MgH
2
) doped with 5 wt% of metallic glassy (MG) zirconium palladium (Zr
2
Pd) nanopowder was fabricated using a high-energy ball milling technique.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>35530499</pmid><doi>10.1039/c9ra05121j</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-1851-7553</orcidid><orcidid>https://orcid.org/0000-0002-5513-3260</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; PubMed Central |
| subjects | Ambient temperature Ball milling Chemistry Consolidation Deformation effects Dehydrogenation Fuel cells Grain growth Hydrides Hydrogen storage Hydrogenation Magnesium Nanocomposites Nanocrystals Palladium Plastic deformation Porosity Pressing Ultrafines Zirconium |
| title | Environmentally friendly nanocrystalline magnesium hydride decorated with metallic glassy-zirconium palladium nanopowders for fuel cell applications |
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