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In this work, we demonstrate that the introduction of pyrene and alkyne groups into a highly conjugated microporous polymer (LKK-CMP-1) can be achieved via oxidative homocoupling of 1,3,6,8-tetraethynylpyrene (L). The 1,3-diyne-linked conjugated microporous polymer not only has good thermal stability but also has small pore sizes. These small pores within LKK-CMP-1 facilitate the interactions between CO2and its pore walls, evidenced by the high isosteric heats of adsorption of CO2and also confirmed by ideal-adsorption-solution-theory (IAST) calculations based on single-component-isotherm data. Therefore, despite moderate CO2adsorption uptake (9.78 wt %, 273 K, and 1 bar) and isosteric heat of adsorption (35.0 kJ mol–1) for CO2, LKK-CMP-1 still exhibits excellent selectivities of CO2/N2(44.2) and CO2/CH4(8.2) at molar ratios of 15:85 and 20:80 respectively. In addition, breakthrough experiments have also shown that LKK-CMP-1 is an effective material for CO2/N2and CO2/CH4separations under flowing conditions.

In this work, the constructing of different carbon nanostructures materials were studied, and the single-structure and pure surface of carbon nanostructures were employed to as catalyst support and the morphology and structure of different carbon nanostructures-based catalysts were investigated. NO catalytic reduction was used as a probe reaction to investigate the catalytic properties of different carbon nanostructures materials and how the controlling of carbon nanostructures would affect its catalytic functions. The results show that vanadium was molecularly anchored on the surface of carbon nanostructures and the mesh-carbon nanotubes as a support show a high catalytic activity.