新型溶胶-凝胶法制备CoPd合金纳米颗粒及其磁性能表征

doi:10.11896/j.issn.1005-023X.2018.10.003

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Abstract The present work improved a novel sol-gel process, and made a successful attempt to prepare CoPd alloy nanoparticles by means of this facile one-pot reaction without H₂ reduction. The formation of face-centered cubic (fcc) CoPd nanoalloy nano-particles were confirmed by the examinations of X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). The analyses show that the grain sizes of the synthesized nanoparticles range from 4 nm to 12 nm with average about 9 nm, and the synthesized nanoparticles exhibit typical superparamagnetic behavior at 300 K along with a blocking temperature at 250 K. This novel silica sol-gel strategy is expected to display potential application in preparing other nanoalloy nanoparticles.

Key words： CoPd alloy nanoparticles sol-gel method superparamagnetic

Published: 25 May 2018 Online: 2018-07-06

CLC number:	O482.54
	O482.52+2

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	Articles by authors
	XU Lianqiang
	TANG Zhixiong
	TANG Shaolong
	DU Youwei

Cite this article:

XU Lianqiang,TANG Zhixiong,TANG Shaolong, et al. Characterization of Magnetic Properties of CoPd Alloy Nanoparticles Synthesized via a Novel Sol-Gel Process[J]. Materials Reports, 2018, 32(10): 1587-1591.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.10.003 OR https://www.mater-rep.com/EN/Y2018/V32/I10/1587

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