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Crystallization mechanism analysis of noncrystalline Ni-P nanoparticles through XRD, HRTEM and XAFS
Tan, YY; Sun, DB; Yu, HY; Yang, B; Gong, Y; Yan, S; Chen, ZJ; Cai, Q; Wu, ZH;宫宇; Chen ZJ(陈中军); Cai Q(蔡泉); Wu ZH(吴忠华)
2014
发表期刊CRYSTENGCOMM
卷号16期号:41页码:9657-9668
摘要The crystallization behavior of noncrystalline Ni-P nanoparticles prepared by a liquid-phase pulsed-discharge method was studied through XRD, HRTEM, and X-ray absorption fine structure (XAFS) spectra from both Ni K-edge and P K-edge. A competitive growth between Ni3P and Ni crystalline phases was found. The main phases within the particles are crystalline Ni3P and Ni, while the metastable phase Ni-5(P, Ni)(2) is presented as a coated shell outside the particles. The appearance of feature D in the P K-edge XANES spectrum could be used as a characteristic for the formation of long-range ordered Ni3P. The standard deviation (Delta R/R) of the fitting P-Ni bond length from the theoretical value of a Ni3P crystal could be used to define the crystallization process. Although the nanoparticles were observed as XRD amorphous at 250 degrees C, their magnetic properties can be attributed to the formation of FCC-Ni clusters. A crystallization mechanism has been proposed to describe the crystallization process of the as-prepared noncrystalline Ni-P nanoparticles.
学科领域Chemistry; Crystallography
DOI10.1039/c4ce01130a
收录类别SCI
WOS记录号WOS:000343035400013
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224984
专题多学科研究中心
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GB/T 7714
Tan, YY,Sun, DB,Yu, HY,et al. Crystallization mechanism analysis of noncrystalline Ni-P nanoparticles through XRD, HRTEM and XAFS[J]. CRYSTENGCOMM,2014,16(41):9657-9668.
APA Tan, YY.,Sun, DB.,Yu, HY.,Yang, B.,Gong, Y.,...&吴忠华.(2014).Crystallization mechanism analysis of noncrystalline Ni-P nanoparticles through XRD, HRTEM and XAFS.CRYSTENGCOMM,16(41),9657-9668.
MLA Tan, YY,et al."Crystallization mechanism analysis of noncrystalline Ni-P nanoparticles through XRD, HRTEM and XAFS".CRYSTENGCOMM 16.41(2014):9657-9668.
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