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The Second China Energy Scientist Forum (CESF 2010 E-BOOK)

Xuzhou,China,10.18-10.19，2010

ISBN: 978-1-935068-37-2 Scientific Research Publishing, USA

E-Book 2244pp Pub. Date: October 2010

Category: Medicine & Healthcare

Price: $360

Title: Effect of Doping Li Element on Properties of Lithium Zirconate as CO2-Absorbent
Source: The Second China Energy Scientist Forum (CESF 2010 E-BOOK) (pp 1330-1333)
Author(s): Yinjie Wang, School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081
Dongmei Bao, School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081
Lei Zhang, School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081
Abstract: With nanometer-sized monoclinic ZrO2, lithium carbonate as starting materials, Li2XZrO3 (0.8?X?1.5) absorbents were prepared by high-temperature solid-state reaction. The influence of doping potassium on the crystal structure of the prepared absorbents was studied by comparison of their XRD patterns. The microscopic morphologies of absorbents with different X were viewed by a sanning electron microscopy. Their CO2-absorption abilities were measured with a thermogravimetric analyzer. The experimental results showed that doping potassium could significantly improve the CO2-absorption ability of lithium zirconate. It was found that Li2XZrO3 absorbent with X=1.1 possesses the best performance. As much as about 25.87 wt% of CO2 was absorbed by such an absorbent from an atmosphere consisting of 20% of CO2 plus 80% of air at 500?C within 20 h.
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