北京大学学报（自然科学版）

锆酸锂的合成及其吸收CO2性能研究

王银杰1, 3), 代克化2), 冯华君2), 朱永双1), 其鲁2)
(1)北京理工大学, 材料科学与工程学院, 北京, 100081; 2)北京大学化学与分子工程学院, 应用化学系, 新能源材料与技术实验室, 北京, 100871; 3)通讯作者, E-mail: wyj@bit.edu.cn)   

  • 收稿日期:2006-09-18 出版日期:2006-12-30 发布日期:2006-12-30

Synthesis and CO2-Absorption Properties of Lithium Zirconate

WANG Yinjie1, 3), DAI Kehua2), FENG Huajun2), ZHU Yongshuang1), Qilu2)
(1) School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081; 2)   

  • Received:2006-09-18 Online:2006-12-30 Published:2006-12-30

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摘要： 以纳米级四方相ZrO2(t)为反应物，采用高温固相法合成了在高温下可直接吸收CO2的Li2ZrO3材料。用扫描电子显微镜（SEM）、X-射线粉末衍射仪（XRD）分别分析了所合成材料的表面与结构特征，使用热重分析仪（TG）研究了Li2ZrO3材料吸收CO2的性能。实验结果表明，吸收温度影响材料吸收CO2的性能，500℃下Li2ZrO3材料具有最佳的CO2吸收性能。此外，CO2气体流量、Li2ZrO3材料样品重量以及升温速率均影响材料吸收CO2的性能。

关键词: Li2ZrO3, 合成, CO2吸收

Abstract: With nanometer-sized tetragonal ZrO2 and lithium carbonate as starting materials, Li2ZrO3 absorbents were prepared by high-temperature solid-state reaction. The crystal structure of the Li2ZrO3 absorbents was studied by comparison of their X-ray diffraction (XRD) patterns. The microscopic morphologies of absorbents were viewed by a scanning electron microscopy(SEM). Their CO2-absorption abilities were measured with a thermogravimetric analyzer (TG). The experimental results show that absorbed temperature influences CO2-absorption properties of Li2ZrO3, which exhibits very good ability to absorb CO2 at 500℃. The CO2 flux, Li2ZrO3 sample weight and calefactive rate also have an influence on the CO2 absorption ability of Li2ZrO3.

Key words: Li2ZrO3, preparation, CO2-absorption

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