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多孔的核心膜微结构纳米材料,由深层欧特克溶剂和MOF-808组成,用于CO2捕获₂

Chen Zhang¹, Tingyu Su^1,2, Xinqi Zhang^1,2

¹Institute of Refrigeration and Cryogenics, Key Laboratory of Power Machinery and Engineering of MOE, Shanghai Jiao Tong University, Shanghai, 200240, China.

|August 23, 2023

概括

新的纳米材料结合了深度环氧溶剂 (DES) 和MOF-808来增强二氧化碳的捕获. 这些DES@MOF-120材料比传统的DES具有更好的吸附性能,可以有效地去除二氧化碳.

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:

深度环氧溶剂 (DES) 对二氧化碳捕获具有前景,但由于扩散相互作用和粘度而面临限制.
多孔金属有机框架 (MOF) 为材料增强提供高表面积和可调节性质.

研究的目的:

开发新的核心膜微结构纳米材料,以改善二氧化碳捕获.
研究一个多孔的MOF-808核心和一个DES膜对二氧化碳吸附性能的协同效应.

主要方法:

使用液体表面张力和静电相互作用制造DES@MOF-120核心膜纳米材料.
二氧化碳吸收机制的特征包括扩散,物理吸收和化学吸收.
使用Sips模型进行吸附异热分析以评估性能和预测容量.

主要成果:

与基础DES (MEA-TPAC-7) 相比,DES@MOF-120显示显著提高了二氧化碳吸附能力 (例如,在2.4巴时达到4.78mmol/g).
MOF-808核心改善了DES膜内的扩散,克服了与粘度相关的限制.
Sips 建模预测最大吸附能力超过6.33 mmol/g,相关系数高 (>0.9454).

结论:

开发的DES@MOF-120纳米材料代表了高效的二氧化碳捕获系统,性能优于传统的DES.
核心膜架构成功地整合了MOF和DES的好处,以获得卓越的吸附性能.
这种方法为开发高效碳捕获技术的先进材料提供了有希望的途径.

关键词:

捕获二氧化碳是为了捕获二氧化碳.深层欧性溶剂深层欧性溶剂金属有机框架的框架.离子液体是一种离子液体.吸收吸收吸收吸收

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