Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 28, Issue 2, Pages 242-245Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2018.01.015
Keywords
Mesoporous silica nanospheres; Nanoengineering; Nanoreactors; Catalysis
Funding
- National Natural Science Foundation of China [21577010, 21677022]
- Fund of State Key Laboratory of Catalysis in DICP [N-13-04]
- State Key Laboratory of Fine Chemicals [KF1406]
- Fundamental Research Funds for the Central Universities [DUT15LAB02]
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Selective functionalization of mesoporous silica nanospheres (MSNs) is crucial for nanoengineering of MSNs. Herein, we have combined surface-protected etching strategy and cationic surfactant assisted etching strategy to prepare functionalized MSNs with externally attached amino groups. The externally attached NH2 groups endow the catalysts with excellent catalytic performance for nitroaldol reaction between nitromethane and benzaldehyde. In addition, those NH2-MSNs can also be used to support gold nanoparticles, which display very good catalytic performance for reduction of 4-nitrophenol. It can be envisioned that the synthesis protocol developed in this work could also be extended to nanoengineered MSNs, which provides opportunities for nanoreactors design.
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