State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.
Department of Chemistry, Chongqing Normal University, Chongqing, 401331, China.
Angew Chem Int Ed Engl. 2017 Sep 11;56(38):11426-11430. doi: 10.1002/anie.201704974. Epub 2017 Aug 9.
We present a crystal engineering strategy to fine tune the pore chemistry and CH -storage performance of a family of isomorphic MOFs based upon PCN-14. These MOFs exhibit similar pore size, pore surface, and surface area (around 3000 m g ) and were prepared with the goal to enhance CH working capacity. [Cu (L2)(H O) ] (NJU-Bai 41: NJU-Bai for Nanjing University Bai's group), [Cu (L3)(H O) ] (NJU-Bai 42), and [Cu (L4)(DMF) ] (NJU-Bai 43) were prepared and we observed that the CH volumetric working capacity and volumetric uptake values are influenced by subtle changes in structure and chemistry. In particular, the CH working capacity of NJU-Bai 43 reaches 198 cm (STP: 273.15 K, 1 atm) cm at 298 K and 65 bar, which is amongst the highest reported for MOFs under these conditions and is much higher than the corresponding value for PCN-14 (157 cm (STP) cm ).
我们提出了一种晶体工程策略，以微调基于 PCN-14 的同构 MOF 家族的孔化学和 CH 存储性能。这些 MOF 具有相似的孔径、孔表面积和表面面积（约 3000 m 2 /g），并通过提高 CH 工作容量的目标来制备。[Cu（L2）（H 2 O）]（NJU-Bai 41：NJU-Bai 代表南京大学白教授的团队）、[Cu（L3）（H 2 O）]（NJU-Bai 42）和[Cu（L4）（DMF）]（NJU-Bai 43）被制备出来，我们观察到 CH 体积工作容量和体积吸附值受到结构和化学细微变化的影响。特别是，NJU-Bai 43 在 298 K 和 65 巴下的 CH 工作容量达到 198 cm 3 （STP：273.15 K，1 atm），这在这些条件下是 MOF 中报道的最高值之一，远高于相应的 PCN-14 值（157 cm 3 （STP）cm 3 ）。
