IHEP OpenIR
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
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume16Issue:41Pages:9657-9668
AbstractThe 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.
Subject AreaChemistry; Crystallography
DOI10.1039/c4ce01130a
Indexed BySCI
Language英语
WOS IDWOS:000343035400013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/224984
Collection中国科学院高能物理研究所
Recommended Citation
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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