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碳氧甲基纤维素/聚乙烯醇复合气凝支持β分子对CH4的吸附和储存

Jinqiang Sun¹, Jing Zhang¹, Xiaoqian Peng¹

¹Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250014, PR China.

Carbohydrate polymers

|September 22, 2023

概括

一种由β分子,碳氧甲基纤维素和聚乙烯醇制成的新型复合气凝有效吸附甲 (CH4). 这种环保材料对甲储存应用有很大的潜力.

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:

生物质气凝为各种应用提供可再生,可生物降解和环保的优势.
开发高效和成本效益的吸附剂对于气体储存至关重要,特别是甲 (CH4).

研究的目的:

准备一种新型的复合气凝,将β分子入生物质衍生矩阵中,以增强气体吸附.
为了研究复合气凝的结构性质和甲吸附性能.

主要方法:

通过直接混合和定向冷干燥,使用β分子,碳甲基纤维素和聚乙烯醇合成了一种复合气凝 (β/CP).
通过调整β分子载荷来控制层次的多孔度和毛孔大小分布.
甲吸附能力在298K和100bar时被测量.

主要成果:

贝塔分子被均分散在气凝的3D骨架内,防止聚合并改善孔隙利用.
复合气凝 (β/CP-4) 在298K和100bar时达到60.33cm3/g的CH4吸附能力,相当于纯β分子.
层次性孔隙结构之间的协同效应提高了整体吸附性能.

结论:

开发的β分子/碳甲基纤维素/聚乙烯醇复合气凝显示出出色的甲吸附能力.
这种环保材料为甲储存应用提供了一个有希望的,潜在的成本效益高的解决方案.
该研究强调了复合气凝在先进气体吸附技术中的潜力.

关键词:

气凝是一种气凝.贝塔分子. 贝塔分子.CH(4) 的吸附作用.碳甲基纤维素的碳甲基纤维素.层次性的多孔性层次性的多孔性聚乙醇的使用情况.

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