Abstract In the present work, new CaO-based adsorbents were obtained by a fast solution combustion method and high-energy ball-milling process to study their CO 2 capture behavior under different moderate pressure and temperature conditions. The as-prepared CaO products were characterized systematically using different analytical techniques such as X-ray diffraction, scanning electron microscopy and N 2 physisorption measurements. The results showed that the CaO prepared by solution combustion and ball-milled during 2.5 h showed the maximum CO 2 adsorption capacity of 9.31 mmol/g at 25 °C and 1 atm mainly via chemisorption with CaCO 3 formation, which was corroborated by infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy studies. In general, the obtained results revealed that the synthesized CaO nanopowders from solution combustion that were treated by high-energy ball-milling enhanced their CO 2 adsorption capacity due to improved structural and textural properties, and this CaO-based adsorbent can be used as a promising material for CO 2 capture in post-combustion CO 2 capture technologies on a large scale, under atmospheric pressure and temperature conditions.

中文翻译：

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通过溶液燃烧和高能球磨工艺制备用于 CO 2 吸附的新型 CaO 基吸附剂：结构和结构影响

摘要 在目前的工作中，通过快速溶液燃烧法和高能球磨工艺获得了新型CaO 基吸附剂，以研究其在不同中等压力和温度条件下的CO 2 捕获行为。使用不同的分析技术，如 X 射线衍射、扫描电子显微镜和 N 2 物理吸附测量，系统地表征了制备的 CaO 产品。结果表明，通过溶液燃烧和球磨 2.5 h 制备的 CaO 在 25 °C 和 1 atm 下的最大 CO 2 吸附容量为 9.31 mmol/g，主要通过化学吸附形成 CaCO 3 ，红外光谱证实了这一点。 、X 射线衍射和 X 射线光电子能谱研究。一般来说，