Premium
Ultralight Mesoporous Magnetic Frameworks by Interfacial Assembly of Prussian Blue Nanocubes
Author(s) -
Kong Biao,
Tang Jing,
Wu Zhangxiong,
Wei Jing,
Wu Hao,
Wang Yongcheng,
Zheng Gengfeng,
Zhao Dongyuan
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201308625
Subject(s) - prussian blue , mesoporous material , materials science , nanotechnology , superparamagnetism , chemical engineering , adsorption , porosity , iron oxide , oxide , catalysis , chemistry , organic chemistry , composite material , electrode , metallurgy , magnetization , physics , quantum mechanics , magnetic field , engineering , electrochemistry
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.