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水共同吸收对微孔聚合物吸附剂中二氧化碳捕获的影响

Robert Dawson¹, Lee A Stevens, Trevor C Drage

¹Department of Chemistry and Centre for Materials Discovery, University of Liverpool, Liverpool L69 7ZD, United Kingdom.

Journal of the American Chemical Society

|June 13, 2012

概括

新的含有酒精的聚合物网络显示了用于捕获二氧化碳的高表面积. 然而,在水蒸气存在时,它们的性能会下降,这表明现实世界的应用将面临挑战.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

开发用于碳捕获的先进材料对于缓解气候变化至关重要.
聚合物网络为气体吸附应用提供可调节的特性.
弗里德尔-克拉夫特化是一种用于合成功能性聚合物网络的多功能方法.

研究的目的:

合成具有高表面积的新型含酒精聚合物网络.
为了研究二氧化碳捕获性能的racemic和奇拉双 (BINOL) 网络.
评估水蒸气对这些材料二氧化碳吸附能力的影响.

主要方法:

通过Friedel-Crafts化合成聚合物网络.
使用BET分析表征表面积 (高达1015 m2/g).
在干燥和潮湿条件下进行气体吸附实验,以评估二氧化碳捕获能力.

主要成果:

在含有酒精的聚合物网络中达到较高的表面积.
在干燥条件下,BINOL网络的二氧化碳捕获量在干燥条件下比纳醇类似物更高.
在水蒸气存在的情况下,在BINOL网络中观察到二氧化碳吸附的减少.

结论:

合成的BINOL聚合物网络显示出有前途的二氧化碳捕获潜力.
水蒸气显著影响这些材料的二氧化碳吸附性能.
理想化的干燥条件测量可能无法准确预测现实世界的碳捕获效率.

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