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Citation: Wang Yin-Jie, . The Influencing Factor for CO₂ Absorption of Li₂ZrO₃ at High Temperature[J]. Acta Physico-Chimica Sinica, ;2004, 20(04): 364-367. doi: 10.3866/PKU.WHXB20040406 shu

The Influencing Factor for CO₂ Absorption of Li₂ZrO₃ at High Temperature

Wang Yin-Jie ,

1.
Department of Applied Chemistry, College of Chemistry ＆ Molecular Engineering, Peking University, Beijing　100871

Received Date: 6 October 2003
Available Online: 15 April 2004

Li2ZrO3 materials were synthesized under different conditions for CO2 absorption at high temperature. The crystal structure of the Li2ZrO3 material was analyzed using an X-ray powder diffractometer (XRD), the surface morphologies of all the samples were observed by using scanning electron microscopy (SEM) and the CO2-absorption ability of the Li2ZrO3 material was studied using a thermogravimetric (TG) analyzer. The experimental results show that the synthesis temperature affects both the structure (Fig.3) and the morphology (Fig.4) of the material, and hence its CO2 absorption ability. As a result, Li2ZrO3 materials synthesized at 800 ℃ exhibit superior absorption ability; whereas Li2ZrO3 materials derived under either excessively high or low synthesis temperatures show poorer absorption ability (Fig.2). In addition, the CO2 concentration in the atmosphere also has influence on the CO2 absorption rate of the Li2ZrO3 material. Li2ZrO3 materials display better absorption abilities at higher percentage concentrations of CO2 in the atmosphere (Fig.5). Furthermore, the Li2ZrO3 material in this research, which displayed better absorption ability, was synthesized without doping any elements.
- Lithium zirconate;Absorption;Carbon dioxide;TG;XRD
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The Influencing Factor for CO2 Absorption of Li2ZrO3 at High Temperature

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通讯作者: 陈斌, bchen63@163.com

The Influencing Factor for CO₂ Absorption of Li₂ZrO₃ at High Temperature