A simple method to ordered mesoporous carbons containing nickel nanoparticles |
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Authors: | Xiqing Wang Sheng Dai |
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Institution: | (1) Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6201, USA |
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Abstract: | A series of ordered mesoporous carbons containing magnetic Ni nanoparticles (Ni-OMCs) with a variety of Ni loadings was made
by a simple one-pot synthetic procedure through carbonization of phenolic resin-Pluronic block copolymer composites containing
various amount of nickel nitrate. Such composite materials were characterized by N2 sorption, XRD, and STEM. Ni-OMCs exhibited high BET surface area, uniform pore size, and large pore volume without obvious
pore blockage with a Ni loading as high as 15 wt%. Ni nanoparticles were crystalline with a face-center-cubic phase and observed
mainly in the carbon matrix and on the outer surface as well. The average particle size of Ni nanoparticles was dependent
on the preparation (carbonization) temperature and Ni loading; the higher the temperature was used and the more the Ni was
incorporated, the larger the Ni nanoparticles were observed. One of the applications of Ni-OMCs was demonstrated as magnetically
separable adsorbents.
Dedicated to Professor Mietek Jaroniec on the occasion of his 60th birthday. |
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Keywords: | Ordered mesoporous carbon Magnetic Adsorbent Nickel Synthesis |
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