Nanoporous networks as caging supports for uniform, surfactant-free Co3O4 nanocrystals and their applications in energy storage and conversion
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- Nanoporous networks as caging supports for uniform, surfactant-free Co3O4 nanocrystals and their applications in energy storage and conversion
- Byun J.; Patel H.A.; Kim D.J.; Chan-Ho Jung; Jeong Young Park; Choi J.W.; Yavuz C.T.
- JOURNAL OF MATERIALS CHEMISTRY A, v.3, no.30, pp.15489 - 15497
- ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
- We report a new, surfactant-free method to produce Co3O4 nanocrystals with controlled sizes and high
dispersity by caging templation of nanoporous networks. The morphologies of Co3O4 nanoparticles
differ from wires to particulates by simply varying solvents. The composites of nanoparticles within
network polymers are highly porous and are promising for many applications where accessible surface
and aggregation prevention are important. The electrochemical performance of the composites
demonstrates superior capacity and cyclic stability at a high current density (980 mA h g1 at the 60th
cycle at a current density of 1000 mA g1). In a catalytic oxidation reaction of carbon monoxide, the
composites exhibit a remarkable stability (in excess of 35 hours) and catalytic performance (T100 ¼ 100 C). © 2015 The Royal Society of Chemistry
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