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Shape selective adsorption of linear and branched alkanes in the Cu_3(BTC)_2 metal-organic framework

机译:Cu_3(BTC)_2金属-有机骨架中线性和支链烷烃的形状选择吸附

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摘要

Low coverage adsorption properties of C2-C7 linear and C5-C7 iso-alkanes are measured. Shape selective properties of the Cu_3(BTC)_2 MOF are determined using the pulse chromatographic technique. Preferential adsorption of linear over methylbranched alkanes is observed. Linear alkanes fit better in the pores resulting in stronger interaction with the framework atoms, and thus longer retention.
机译:测量了C2-C7线性和C5-C7异烷烃的低覆盖吸附性能。使用脉冲色谱技术确定Cu_3(BTC)_2 MOF的形状选择特性。观察到线性优先吸附在甲基支链烷烃上。直链烷烃更好地适合孔,导致与骨架原子的相互作用更强,因此保留时间更长。

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