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Cu-BTC金属有机骨架是最具潜力的甲烷气体吸附存储材料,然而其具有吸附热高、导热性低的缺陷,制约着材料的实际应用。为了提高Cu-BTC材料的导热性能并保持合理的吸附分离特性,本文制备出了一种Cu-BTC/CuO/Carbon fiber paper多级孔结构材料。实验结果表明,这种多级孔结构材料的导热性是纯Cu-BTC材料的17.64倍;压力为0~100kPa、温度为0℃时,多级孔结构材料的CH_4/H_2分离性能与Cu-BTC接近,CH_4/N_2的吸附分离性能却比纯Cu-BTC材料提高了2.15~2.65倍。
Cu-BTC metal-organic framework is the most potential methane gas storage material, however, it has high adsorption heat, low thermal conductivity, which restricts the practical application of the material. In order to improve the thermal conductivity of Cu-BTC material and maintain a reasonable adsorption and separation characteristics, a Cu-BTC / CuO / Carbon fiber paper multi-level pore structure material was prepared. The experimental results show that the thermal conductivity of this multi-stage porous structure is 17.64 times that of pure Cu-BTC. When the pressure is 0 ~ 100kPa and the temperature is 0 ℃, the separation performance of CH_4 / When BTC is close, the adsorption and separation performance of CH_4 / N_2 is 2.15 ~ 2.65 times higher than pure Cu-BTC material.