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.
| Original language | English |
|---|---|
| Pages (from-to) | 138-144 |
| Number of pages | 7 |
| Journal | Adsorption |
| Volume | 15 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 2009 |
Funding
Acknowledgements This work was conducted at the Oak Ridge National Laboratory and supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy, under contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. This research was supported in part by an appointment for X.W. to the Oak Ridge National Laboratory Postdoctoral Research Associates Program, administered jointly by the Oak Ridge Institute for Science and Education and Oak Ridge National Laboratory.
| Funders | Funder number |
|---|---|
| Division of Chemical Sciences | |
| Office of Basic Energy Sciences | |
| U.S. Department of Energy | |
| Oak Ridge National Laboratory | |
| Oak Ridge Institute for Science and Education |
Keywords
- Adsorbent
- Magnetic
- Nickel
- Ordered mesoporous carbon
- Synthesis