Magnesium Hydride Formation within Carbon Aerogel
Magnesium hydride nanoparticles were synthesized within a carbon aerogel (CA) scaffold using a dibutylmagnesium precursor. The synthesis reaction was tracked using small-angle X-ray scattering (SAXS) to analyze the structural evolution during MgH2 formation. The CA/MgH2 composite was also investigat...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/6077 |
| _version_ | 1848744973123452928 |
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| author | Paskevicius, Mark Tian, Hu-Yong Sheppard, Drew Webb, C. Pitt, Mark Gray, E. Kirby, N. Buckley, Craig |
| author_facet | Paskevicius, Mark Tian, Hu-Yong Sheppard, Drew Webb, C. Pitt, Mark Gray, E. Kirby, N. Buckley, Craig |
| author_sort | Paskevicius, Mark |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Magnesium hydride nanoparticles were synthesized within a carbon aerogel (CA) scaffold using a dibutylmagnesium precursor. The synthesis reaction was tracked using small-angle X-ray scattering (SAXS) to analyze the structural evolution during MgH2 formation. The CA/MgH2 composite was also investigated using X-ray diffraction (XRD) and transmission electron microscopy (TEM) to provide a better representation of the physical system. The CA has a large quantity of 2 nm pores as shown by nitrogen adsorption data. Both SAXS and TEM investigations confirm that MgH2 does form within the 2 nm pores but XRD proves that there is also a significant quantity of larger MgH2 particles within the system. Variations between hydrogen desorption isotherms from the CA/MgH2 composite and bulk MgH2 are detected that are indicative of changes in the decomposition properties of the small fraction of 2 nm MgH2 nanoparticles within the CA/MgH2 composite, changes which match theoretical predictions. |
| first_indexed | 2025-11-14T06:09:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-6077 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:09:58Z |
| publishDate | 2011 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-60772017-09-13T15:54:29Z Magnesium Hydride Formation within Carbon Aerogel Paskevicius, Mark Tian, Hu-Yong Sheppard, Drew Webb, C. Pitt, Mark Gray, E. Kirby, N. Buckley, Craig Magnesium hydride nanoparticles were synthesized within a carbon aerogel (CA) scaffold using a dibutylmagnesium precursor. The synthesis reaction was tracked using small-angle X-ray scattering (SAXS) to analyze the structural evolution during MgH2 formation. The CA/MgH2 composite was also investigated using X-ray diffraction (XRD) and transmission electron microscopy (TEM) to provide a better representation of the physical system. The CA has a large quantity of 2 nm pores as shown by nitrogen adsorption data. Both SAXS and TEM investigations confirm that MgH2 does form within the 2 nm pores but XRD proves that there is also a significant quantity of larger MgH2 particles within the system. Variations between hydrogen desorption isotherms from the CA/MgH2 composite and bulk MgH2 are detected that are indicative of changes in the decomposition properties of the small fraction of 2 nm MgH2 nanoparticles within the CA/MgH2 composite, changes which match theoretical predictions. 2011 Journal Article http://hdl.handle.net/20.500.11937/6077 10.1021/jp1100768 American Chemical Society restricted |
| spellingShingle | Paskevicius, Mark Tian, Hu-Yong Sheppard, Drew Webb, C. Pitt, Mark Gray, E. Kirby, N. Buckley, Craig Magnesium Hydride Formation within Carbon Aerogel |
| title | Magnesium Hydride Formation within Carbon Aerogel |
| title_full | Magnesium Hydride Formation within Carbon Aerogel |
| title_fullStr | Magnesium Hydride Formation within Carbon Aerogel |
| title_full_unstemmed | Magnesium Hydride Formation within Carbon Aerogel |
| title_short | Magnesium Hydride Formation within Carbon Aerogel |
| title_sort | magnesium hydride formation within carbon aerogel |
| url | http://hdl.handle.net/20.500.11937/6077 |