| DOI | Resolve DOI: https://doi.org/10.1021/ac050076jS0003-2700(05)00076-4 |
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| Author | Search for: Zhang, Wandong1; Search for: Ratcliffe, Christopher2; Search for: Moudrakovski, Igor2; Search for: Mou, C-Y; Search for: Ripmeester, John2 |
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| Affiliation | - National Research Council Canada. NRC Institute for Biological Sciences
- National Research Council Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Abstract | The distribution of gallium nanocrystals in mesoporous MCM-41 host were analyzed by continuous-flow hyperpolarized 129Xe NMR spectroscopy. In contrast to unclear TEM images for the high metal contents, laser-polarized 129Xe probe can detect the whole distribution of gallium in the MCM-41 host. It is found that gallium nanocrystals are included in the mesochannels of MCM-41; a part of them also remains in the interparticle voids. The distribution of gallium metal in MCM-41 is heterogeneous. Not all the mesochannels host metallic gallium even at a high gallium loading of 65.1 wt %. Variable temperature measurements can provide information on the xenon adsorption parameters. This approach opens a sensitive way to probe the distribution of high content species in porous host materials. |
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| Publication date | 2005-05-15 |
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| In | |
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| NPARC number | 12338345 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5d02d2b4-57d1-4b6a-a202-cb82b2d522fe |
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| Record created | 2009-09-10 |
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| Record modified | 2020-04-07 |
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