Superparamagnetic nickel nanoparticles were prepared by incorporating nickel ion into AlMCM41 as a nanoreactor and then reduced with sodium borohydride or H2 gas. Products were characterized by elemental analysis, transmission electron microscopy, X-ray powder diffraction, and magnetic susceptibility. The nickel particle size and blocking temperature depend on the reduction method.
Bibliographical noteFunding Information:
This work was supported by Grant No. 1999-2-121-004-5 from the interdisciplinary research program of the KOSEF and by the US Department of Defense (DARPA Grant No. MDA972-97-1-0003) and also Konkuk University (J-H J).
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics