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- W4283262012 endingPage "101570" @default.
- W4283262012 startingPage "101570" @default.
- W4283262012 abstract "• The hydrogen storage benefits and challenges of MgH2 were discussed. • The synthesis and physicochemical properties of 2D MXenes have been highlighted. • High-capacity hydrogen storage properties of MXenes at near-ambient conditions were reviewed. • The synthesis of MXene catalysts and MgH2-MXene composites was reported. • Improved hydrogen de/absorption properties of MgH2-MXene composites were reviewed. • Challenges and prospects for future research were presented. Over the last few decades, hydrogen fuel has been considered to be a major alternative source of renewable energy due to increasing environmental pollution and the depletion of nonrenewable energy. The need to efficiently produce and store hydrogen, therefore, has necessitated the development of several technologies and materials for hydrogen storage to achieve the envisaged hydrogen economy. Solid-state hydrogen storage in magnesium hydride (MgH 2 ) has shown a huge potential owing to its impressively high gravimetric and volumetric hydrogen capacities of ca. 7.6 wt% and 111 g/L, respectively. However, the bottleneck to the wide applications of MgH 2 as a commercial source of hydrogen fuel is the delivery temperature requirement of ca. 300-400°C due to thermodynamic stability (ca. 76 kJ/mol-H 2 ), and the slow kinetics of hydrogen de/absorption. Nanostructuring and catalysis are marked as the most promising strategies for modifying the properties of MgH 2 . Doping MgH 2 with nanoscale materials can lower the delivery temperature and bring it nearer to commercial applications. Recently, MXenes, a group of 2D nanomaterials composed of transition metal carbides/nitrides/carbonitrides layers, have demonstrated the dual roles of storing hydrogen and enhancing the hydrogen evolution reactions of lightweight metal hydrides especially MgH 2 . This review article, therefore, provides explicit insights into MXenes, their recent applications as potential materials for storing hydrogen, and as functional additives for enhancing the hydrogen reaction of MgH 2 with an outlook." @default.
- W4283262012 created "2022-06-23" @default.
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- W4283262012 creator A5084550509 @default.
- W4283262012 date "2022-12-01" @default.
- W4283262012 modified "2023-09-27" @default.
- W4283262012 title "MXenes for magnesium-based hydrides: A review" @default.
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