High pressure structural investigation on alluaudites   Na2Fe3(PO4)(3)-Na2FeMn2(PO4)(3) system

doi:10.1016/j.jssc.2017.01.007

CORC > 北京大学 > 地球与空间科学学院

	High pressure structural investigation on alluaudites Na2Fe3(PO4)(3)-Na2FeMn2(PO4)(3) system
	Gao, Jing ; Huang, Weifeng ; Qin, Shan ; Wu, Xiang
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2017
关键词	Alluaudite Diamond anvil cell Chemical pressure Ion substitution Electrochemical performances 1ST EXPERIMENTAL-EVIDENCE POSITIVE ELECTRODE ELECTROCHEMICAL PROPERTIES CRYSTAL-CHEMISTRY SODIUM BATTERIES ENERGY-STORAGE ION BATTERIES PHASE GARNET SPECTROSCOPY
DOI	10.1016/j.jssc.2017.01.007
英文摘要	Alluaudites are promising electrochemical materials benefited from the open structure. Structural variations of alluaudites Na2M3(PO4)(3) (M-3=Fe-3, Fe2Mn and FeMn2) system have been studied by synchrotron radiation X-ray diffraction combined with diamond anvil cell technique up to similar to 10 GPa at room temperature. No phase transition is observed. The excellent structural stability is mainly due to the flexible framework plus strong covalent P-O bond. Mn2+ instead of Fe can be described as Na+-2Fe(2+)-> Mn2++Fe3+o where o represents a lattice vacancy. The replacement of Fe with larger Mn2+ is equivalent to applying negative chemical pressure to the material. And it causes a more compressible b-axis, lattice expansion, structural compressibility and intensifies the core/electron-electron interactions of Fe. External pressure effect produces anisotropic lattice shrinkage. Structural considerations related to these variations and promising application prospects are discussed.; Natural Science Foundation of China [U1232204, 41473056]; SCI(E); ARTICLE; 156-160; 247
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474925]
专题	地球与空间科学学院工学院
推荐引用方式 GB/T 7714	Gao, Jing,Huang, Weifeng,Qin, Shan,et al. High pressure structural investigation on alluaudites Na2Fe3(PO4)(3)-Na2FeMn2(PO4)(3) system[J]. JOURNAL OF SOLID STATE CHEMISTRY,2017.
APA	Gao, Jing,Huang, Weifeng,Qin, Shan,&Wu, Xiang.(2017).High pressure structural investigation on alluaudites Na2Fe3(PO4)(3)-Na2FeMn2(PO4)(3) system.JOURNAL OF SOLID STATE CHEMISTRY.
MLA	Gao, Jing,et al."High pressure structural investigation on alluaudites Na2Fe3(PO4)(3)-Na2FeMn2(PO4)(3) system".JOURNAL OF SOLID STATE CHEMISTRY (2017).