Citation: Wang Zhumei, Ma Zhenguo, Li Yueming, Gao Yiqun, Song Fusheng, Shen Zongyang, Li Zhike. Effect of Eu-Doping on Synthesis Temperature and Oxidation Resistance of γ-Ce₂S₃[J]. Chemistry, ;2019, 82(5): 441-445. shu

Effect of Eu-Doping on Synthesis Temperature and Oxidation Resistance of γ-Ce₂S₃

School of Materials Science and Engineering, Jingdezhen Ceramic Institute; China National Light Industry Key Laboratory of Functional Ceramic Materials; Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi Province, Jingdezhen 333403

Corresponding author: Li Yueming, lym6329@163.com
Received Date: 16 November 2018
Accepted Date: 6 January 2019

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In this paper, CeCl₃·7H₂O, Eu₂O₃ and C₂H₂O₄·2H₂O were used as raw materials to prepare europium-doped cerium oxalate by oxalate coprecipitation process. The europium-doped cerium oxalate was calcined into europium-doped cerium oxide precursor. This precursor was vulcanized into europium-doped γ-Ce₂S₃ by CS₂ with Ar as the carrier gas. The results showed that using Eu²⁺ ion doping can lower the synthesis temperature and improve the temperature stability of europium-doped γ-Ce₂S₃. When the ratio of Eu²⁺ and Ce³⁺ was 0.03, the pure phase of γ-Ce₂S₃ can be obtained by vulcanized at 900℃ for 150 min. The synthesis temperature of γ-Ce₂S₃ had decreased by 300℃ than that of pure γ-Ce₂S₃, and the oxidation exothermic peak of europium-doped γ-Ce₂S₃ increases from 490.6℃ to 553.3℃.
- Rare earth sesquisulfide,
- γ-Ce₂S₃,
- Ion-doping,
- Synthesis temperature,
- Temperature stability
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通讯作者: 陈斌, bchen63@163.com

Effect of Eu-Doping on Synthesis Temperature and Oxidation Resistance of γ-Ce₂S₃