Sol-gel Synthesis and Properties of Ce1-xGdxO2-x/2 Solid Solutions

Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (8): 1279.

• Articles • Previous Articles Next Articles

Sol-gel Synthesis and Properties of Ce_1-xGd_xO_2-x/2 Solid Solutions

JIANG Kai¹, PENG Cheng¹, LI Wu-Ju¹, WANG Lin-WANG Hong-Yan², LIANG Hong-Wei², MENG Jian²

1. College of Chemistryand Environmental Science, Henan Normal University, The Key Laboratoryof Environmental Scienceand Technology of High Education of Henan Province, Xingxiang 453002, China;
2. Key Laboratory of Rare Earth Chemistryand Physics, Changchun Instituteof Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:2000-08-23 Online:2001-08-24 Published:2001-08-24

Abstract

Abstract: Aseries of solid electrolytes Ce_1-x Gd_x O_2-x/2 ( x=0-0.6) was prepared by sol-gelmethod. The structure, thermal expansion coefficient and electrical properties of the solid solutions were systematically studied. XRDdata showed that a complete cubic fluorite structure was formed at 160 ℃. The purity of the product prepared by the sol gel methoDIs higher, the grain size is uniformly smaller. They were easily sintereDInto highly dense ceramic pellets at 1300 ℃. The sintering temperature was significantly lower than that by traditionally high temperature solid phase reaction method. The thermal expansion coefficient of Ce_0.8 Gd_0.2 O_1.9 , determined from high-temperature XRDdata, is 8.125×10^-6 K^-1 . Impedance spectra analyses showed that the grain boundary resistance of the solid electrolyte prepared by sol-gel method was reduced or even eliminated. The conductivity of Ce_0.8 Gd_0.2 O_1.9 is 5.26×10^-3 S/cm at 600 ℃. The activation energy ( E_a) is 0.82 eV.

Key words: Solid electrolyte, Sol-gel method, Oxide ionic conductor, Ceria

CLC Number:

O614.33

TrendMD:

JIANG Kai, PENG Cheng, LI Wu-Ju, WANG Lin-WANG Hong-Yan, LIANG Hong-Wei, MENG Jian . Sol-gel Synthesis and Properties of Ce_1-xGd_xO_2-x/2 Solid Solutions[J]. Chem. J. Chinese Universities, 2001, 22(8): 1279.

References

Related Articles 15

[1]	LUO Xinyan, JIA Ruonan, XIANG Yong, ZHANG Xiaokun. Progress on the Stretchable Composite Solid Polymer Electrolytes [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220149.
[2]	JIANG Xiaokang, ZHOU Qi, ZHOU Hengwei. Synthesis and Luminescence Properties of Gd₂ZnTiO₆∶Dy³⁺， Eu³⁺ Single Phase White Light-emitting Phosphors [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220029.
[3]	LI Yishan, GUO Liang, PENG Sifan, ZHANG Qingmao, ZHANG Yuhao, XU Shiqi. Cobalt Substitutions in Lanthanum Manganate Photocatalyst： First-principles and Visible-light Photocatalytic Ability Investigation [J]. Chem. J. Chinese Universities, 2021, 42(6): 1881.
[4]	WANG Zengqiang, SUN Yiling, QIAN Zhengfang, WANG Renheng. Advances in Lithium Metal Batteries Based on Surface Interface Reaction and Optimization [J]. Chem. J. Chinese Universities, 2021, 42(4): 1017.
[5]	HAN Yandong, HAN Mingyong, YANG Wensheng. Sol-gel Construction of Mesoporous Silica Nanomicrostructures [J]. Chem. J. Chinese Universities, 2021, 42(4): 965.
[6]	ZHOU Molin, JIANG Xin, YI Ting, YANG Xiangguang, ZHANG Yibo. Improvement of Interface Stability Between Sulfide Solid Electrolyte Li₁₀GeP₂S₁₂ and Lithium Metal [J]. Chem. J. Chinese Universities, 2020, 41(8): 1810.
[7]	HAN Hongjing,GE Qin,CHEN Yanguang,WANG Haiying,ZHAO Hongzhi,WANG Yizhen,ZHANG Yanan,DENG Jitong,SONG Hua,ZHANG Mei. Production of Phenolic Compounds from Bagasse Lignin via Catalytic Pyrolysis of Ca₁_-xPr_xFe $O 3 †$ [J]. Chem. J. Chinese Universities, 2020, 41(2): 331.
[8]	ZHANG Shuming, LUO Jianhui, XIA Bibo, LI Yuanyang, HE Meiying, JIANG Bo. Sol-gel Preparation of Superhydrophilic Silica Coating-materials with Low Refractive Index^† [J]. Chem. J. Chinese Universities, 2018, 39(6): 1342.
[9]	AI Shujuan, ZONG Chengxing, WU Wei, FENG Jingjing, JIN Can, FU Fengzhi, LIU Jing, SUN Donglan, ZHENG Qin, GUO Yeping. Effect of Derivatives of Glycerol Sulfite as Electrolyte Additive on Electrochemical Performance of Lithium Ion Battery^† [J]. Chem. J. Chinese Universities, 2018, 39(11): 2520.
[10]	LUO Jianhui,YANG Jie,LI Yuanyang,HE Lipeng,JIANG Bo. Synthesis of Amphiphilic Silica Nanoparticles with Double-sphere Morphology^† [J]. Chem. J. Chinese Universities, 2018, 39(10): 2170.
[11]	YANG Tao, CHENG Tiexin, ZHOU Guangdong. Effects of Ag or Yb Doping on Thermoelectric Properties of Ca₃Co_3.9Cu_0.1 $O 9 - δ †$ [J]. Chem. J. Chinese Universities, 2017, 38(3): 335.
[12]	HE Meiying, LUO Jianhui, YANG Bowen, XIA Bibo, LI Yuanyang, ZHANG Shuming, JIANG Bo. Sol-gel Preparation of Hydrophobic Silica Coating-materials with Ultralow Refractive Index^† [J]. Chem. J. Chinese Universities, 2017, 38(11): 2077.
[13]	GUO Mengya, ZONG Chengxing, AI Shujuan, FU Fengzhi, WANG Qi, LIU Jing, SUN Donglan, GUO Yanling, GUO Yeping. Synthesis and Application of New Types of Electrolyte Additives for Lithium Ion Battery^† [J]. Chem. J. Chinese Universities, 2017, 38(10): 1857.
[14]	PAN Yizhen, LI Yujie, CHEN Yimin, ZHENG Chunman. Performance of Nano-porous β-Li₃PS₄ Prepared by Solvent Removing Method^† [J]. Chem. J. Chinese Universities, 2016, 37(7): 1232.
[15]	HONG Yongfei, ZHU Chengfei, HUANG Pan, JI Guanghui. Preparation of NiO Doped Beta-Al₂O₃ Solid Electrolyte via a Low Temperature Combustion Method^† [J]. Chem. J. Chinese Universities, 2016, 37(6): 1030.

Sol-gel Synthesis and Properties of Ce_1-xGd_xO_2-x/2 Solid Solutions

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments