Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+delta double perovskite by sol-gel combustion

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 特种无机涂层重点实验室 > 期刊论文

	Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+delta double perovskite by sol-gel combustion
	Zhang, Rong 1; Lu, Yi 1; Wei, Ling 1; Fang, Zhenggang 1; Lu, Chunhua 1; Ni, Yaru 1; Xu, Zhongzi 1; Tao, Shunyan 2; Li, Peiwen 3
刊名	JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
	2015-12-01
卷号	26 期号:12 页码:9941-9948
英文摘要	Double perovskite oxides Gd0.8Ca0.2BaCo2O5+delta have been successfully prepared by EDTA-citrate complexation process. The prepared samples were characterized by means of thermogravimetry-differential analysis, X-ray diffraction, Fourier transform infrared spectroscopy techniques. These analyses suggested that pure Gd0.8Ca0.2BaCo2O5+delta phase could be formed when the pH value was maintained above three and calcination temperature was higher than 850 A degrees C. The conductivity properties analyzed by means of four probes method, scanning electron microscopy and X-ray photoelectron spectroscopy indicated an improvement in conductivity with a high value of nearly 1200 S/cm, which was due to an increase in the number of small polaron hopping conduction units, Co3+-O-Co4+. Interestingly, the Gd0.8Ca0.2BaCo2O5+delta samples exhibited a semiconducting behavior through a wide range of temperature below 100 A degrees C and a metallic behavior at 100-500 A degrees C, thereby demonstrating that Gd0.8Ca0.2BaCo2O5+delta could meet the requirements of a smart material.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]	Engineering ; Materials Science ; Physics
关键词[WOS]	TRANSITION-METAL OXIDE ; LITHIUM-ION BATTERIES ; ELECTRICAL-PROPERTIES ; IT-SOFCS ; GDBACO2O5+DELTA CATHODE ; LAYERED PEROVSKITE ; MICROSTRUCTURE ; SENSOR ; PH
收录类别	SCI
语种	英语
WOS记录号	WOS:000365525900088
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23389]
专题	上海硅酸盐研究所_特种无机涂层重点实验室_期刊论文
作者单位	1.Nanjing Tech Univ, Coll Mat Sci & Engn, State Key Lab Mat Orient Chem Engn, Nanjing 210009, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China 3.Univ Arizona, Dept Aerosp & Mech Engn, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Zhang, Rong,Lu, Yi,Wei, Ling,et al. Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+delta double perovskite by sol-gel combustion[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2015,26(12):9941-9948.
APA	Zhang, Rong.,Lu, Yi.,Wei, Ling.,Fang, Zhenggang.,Lu, Chunhua.,...&Li, Peiwen.(2015).Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+delta double perovskite by sol-gel combustion.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,26(12),9941-9948.
MLA	Zhang, Rong,et al."Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+delta double perovskite by sol-gel combustion".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 26.12(2015):9941-9948.