期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 11, 页码 2888-2892出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201308625
关键词
adsorption; catalysis; magnetic properties; mesoporous materials; ultralight materials
资金
- National Key Basic Research Program of China [2013CB934104, 2012CB224805]
- NSF of China [20890123, 21322311, 21071033]
- Shanghai Leading Academic Discipline Project [B108]
- Science and Technology Commission of Shanghai Municipality [08DZ2270500]
- Program for New Century Excellent Talents in University [NCET-10-0357]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
A facile approach for the synthesis of ultralight iron oxide hierarchical structures with tailorable macro-and mesoporosity is reported. This method entails the growth of porous Prussian blue (PB) single crystals on the surface of a polyurethane sponge, followed by in situ thermal conversion of PB crystals into three-dimensional mesoporous iron oxide (3DMI) architectures. Compared to previously reported ultralight materials, the 3DMI architectures possess hierarchical macro-and mesoporous frameworks with multiple advantageous features, including high surface area (ca. 117 m(2) g(-1)) and ultralow density (6-11 mg cm(-3)). Furthermore, they can be synthesized on a kilogram scale. More importantly, these 3DMI structures exhibit superparamagnetism and tunable hydrophilicity/hydrophobicity, thus allowing for efficient multiphase interfacial adsorption and fast multiphase catalysis.
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