Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 37, Pages 14542-14545Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja2060512
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Funding
- DOE-funded Center on Energy Efficient Materials (CEEM) at UCSB [DE-SC0001009]
- National Science Foundation [DMR-0805148]
- National Basic Research Program of China [2009CB623502]
- China Scholarship Council [2008620020]
- 863 Research Program of China [2009AA033701]
- Zhejiang Provincial NSFC [Y4110369]
- Chinese Ministry of Education [211066]
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We report a general reaction container effect in the nanocasting synthesis of mesoporous metal oxides. The size and shape of the container body in conjunction with simply modifying the container opening accessibility can be used to control the escape rate of water and other gas-phase byproducts in the calcination process, and subsequently affect the nanocrystal growth of the materials inside the mesopore space of the template. In this way, the particle size, mesostructure ordering, and crystallinity of the final product can be systemically controlled. The container effect also explain some of the problems with reproducibility in previously reported results.
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