A comprehensive structural and magnetic study of Ni nanoparticles prepared by the borohydride reduction of NiCl2 solution of different concentrations
作者： Aparna Roy , V. Srinivas , S. Ram , J. A. De Toro , J. P. Goff
DOI: 10.1063/1.2361013
关键词: Crystal structure 、 Magnetic moment 、 Magnetic anisotropy 、 Materials science 、 Analytical chemistry 、 Crystallography 、 Tetragonal crystal system 、 Ferromagnetism 、 Magnetic nanoparticles 、 Cubic crystal system 、 Molar concentration
摘要: A comparative study of the structure and magnetic properties Ni nanoparticles (20–80nm) prepared by chemical reduction NiCl2 solution four different concentrations is reported. The concentration has a profound influence on room temperature (300K) state resulting nanoparticles, even though all samples show same x-ray diffraction (XRD) pattern, i.e., have crystal (tetragonal, as proposed us). It found that obtained from lower solutions (0.1 0.5M) linear response with field while those higher ones (1 2M) ferromagnetic component at 300K. This difference in behavior been attributed to possible presence fcc (face centered cubic) cores particles molarity samples, which therefore leads strong interparticle dipolar interactions them. interactions, together magnetocrystalline anis...
scitation.org
harvard.edu
aip.org
sci-hub.se 参考文章(19)
J. L. Dormann, D. Fiorani, E. Tronc, Magnetic Relaxation in Fine‐Particle Systems John Wiley & Sons, Ltd. pp. 283- 494 ,(2007) , 10.1002/9780470141571.CH4
David C. Jiles, Introduction to Magnetism and Magnetic Materials ,(1990)
J Legrand, A Taleb, S Gota, M-J Guittet, C Petit, Synthesis and XPS Characterization of Nickel Boride Nanoparticles Langmuir. ,vol. 18, pp. 4131- 4137 ,(2002) , 10.1021/LA0117247
I. Lisiecki, M. P. Pileni, Synthesis of copper metallic clusters using reverse micelles as microreactors Journal of the American Chemical Society. ,vol. 115, pp. 3887- 3896 ,(1993) , 10.1021/JA00063A006
Jwa-Min Nam, C Shad Thaxton, Chad A Mirkin, Nanoparticle-based bio-bar codes for the ultrasensitive detection of proteins. Science. ,vol. 301, pp. 1884- 1886 ,(2003) , 10.1126/SCIENCE.1088755
E. De Biasi, C. A. Ramos, R. D. Zysler, H. Romero, Large surface magnetic contribution in amorphous ferromagnetic nanoparticles Physical Review B. ,vol. 65, pp. 144416- ,(2002) , 10.1103/PHYSREVB.65.144416
Shiqiang Wei, Hiroyuki Oyanagi, Zhongrui Li, Xinyi Zhang, Wenhan Liu, Shilong Yin, Xiaoguang Wang, X-ray-absorption fine structure study on devitrification of ultrafine amorphous Ni-B alloys Physical Review B. ,vol. 63, pp. 224201- ,(2001) , 10.1103/PHYSREVB.63.224201
Aparna Roy, V. Srinivas, S. Ram, J. A. De Toro, J. M. Riveiro, Effect of interstitial oxygen on the crystal structure and magnetic properties of Ni nanoparticles Journal of Applied Physics. ,vol. 96, pp. 6782- 6788 ,(2004) , 10.1063/1.1792809
H. I. Schlesinger, Herbert C. Brown, A. E. Finholt, James R. Gilbreath, Henry R. Hoekstra, Earl K. Hyde, Sodium Borohydride, Its Hydrolysis and its Use as a Reducing Agent and in the Generation of Hydrogen1 Journal of the American Chemical Society. ,vol. 75, pp. 215- 219 ,(1953) , 10.1021/JA01097A057
C. N. Chinnasamy, B. Jeyadevan, K. Shinoda, K. Tohji, A. Narayanasamy, K. Sato, S. Hisano, Synthesis and magnetic properties of face-centered-cubic and hexagonal-close-packed Ni nanoparticles through polyol process Journal of Applied Physics. ,vol. 97, pp. 10J309- ,(2005) , 10.1063/1.1851951