Towards ambient temperature reversible hydrogen storage in complex hydrides: The 6Mg(NH₂)₂ - 9LiH - xLiBH₄ (x = 1, 6, 12, 18, 24) system

Towards ambient temperature reversible hydrogen storage in complex hydrides: The 6Mg(NH₂)₂ - 9LiH - xLiBH₄ (x = 1, 6, 12, 18, 24) system | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Towards ambient temperature reversible hydrogen storage in complex hydrides: The 6Mg(NH₂)₂ - 9LiH - xLiBH₄ (x = 1, 6, 12, 18, 24) system David Grant, Nicholas Hall, Jacob Prosser, Jamie Ramshaw, Muhammad Salman, and 9 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8223396/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Hydrogen storage remains a key challenge for widescale adoption of hydrogen as an energy vector. Lightweight complex hydrides offer high storage densities but suffer from hydrogen release/cyclability above the temperatures required for practical use. Here, we report on exciting novel discoveries in ternary Reactive Hydride Composites (RHCs). We systematically tuned the LiBH₄ content in the well-established Mg(NH₂)₂ - LiH framework, achieving reversible hydrogen release at temperatures starting as low as 350 K (77 ˚C) and a capacity of 3.1 wt%; a decrease of 100 K compared to the Mg(NH₂)₂ - LiH system. This is a crucial step towards the use of complex hydride-based hydrogen carriers for stationary and onboard hydrogen storage applications at ambient temperatures. These results offer insight into the reaction pathways in these RHCs and new insights for the design of next-generation solid-state hydrogen storage materials. Physical sciences/Energy science and technology/Energy storage/Hydrogen storage/Hydrogen storage materials Physical sciences/Chemistry/Materials chemistry Hydrogen Storage Li-Mg systems complex hydrides hydrides Reactive Hydride Composites hydrogen carriers Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupportinginformationTowardsambienttemperaturereversiblehydrogenstorageincomplexhydrides.pdf Supporting information - Towards ambient temperature reversible hydrogen storage in complex hydrides Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8223396","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":555363327,"identity":"3aee2393-60d6-4723-b4fb-559b5ceebfa6","order_by":0,"name":"David 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