Fine Tuning of MOF‐505 Analogues To Reduce Low‐Pressure Methane Uptake and Enhance Methane Working Capacity

作者：Dr. Mingxing Zhang; Dr. Wei Zhou; Dr. Tony Pham; Katherine A. Forrest; Prof. Dr. Wenlong Liu; Dr. Yabing He; Dr. Hui Wu; Dr. Taner Yildirim; Prof. Dr. Banglin Chen; Prof. Dr. Brian Space; Prof. Dr. Yi Pan; Prof. Dr. Michael J. Zaworotko; Prof. Dr. Junfeng Bai

来源：Angewandte Chemie, 2017, 129(38): 11584-11588.

DOI：10.1002/ange.201704974

• Amidliganden
• Kupfer
• Metall-organische Gerüste
• Methanspeicherung
• MOF-505-Analoga

We present a crystal engineering strategy to fine tune the pore chemistry and CH\u003csub\u003e4\u003c/sub\u003e‐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\u003csup\u003e2\u003c/sup\u003e g\u003csup\u003e?1\u003c/sup\u003e) and were prepared with the goal to enhance CH\u003csub\u003e4\u003c/sub\u003e working capacity. [Cu\u003csub\u003e2\u003c/sub\u003e(L2)(H\u003csub\u003e2\u003c/sub\u003eO)\u003csub\u003e2\u003c/sub\u003e]\u003csub\u003e n \u003c/sub\u003e (NJU‐Bai 41: NJU‐Bai for Nanjing University Bai's group), [Cu\u003csub\u003e2\u003c/sub\u003e(L3)(H\u003csub\u003e2\u003c/sub\u003eO)\u003csub\u003e2\u003c/sub\u003e]\u003csub\u003e n \u003c/sub\u003e (NJU‐Bai 42), and [Cu\u003csub\u003e2\u003c/sub\u003e(L4)(DMF)\u003csub\u003e2\u003c/sub\u003e]\u003csub\u003e n \u003c/sub\u003e (NJU‐Bai 43) were prepared and we observed that the CH\u003csub\u003e4\u003c/sub\u003e volumetric working capacity and volumetric uptake values are influenced by subtle changes in structure and chemistry. In particular, the CH\u003csub\u003e4\u003c/sub\u003e working capacity of NJU‐Bai 43 reaches 198 cm\u003csup\u003e3\u003c/sup\u003e (STP: 273.15 K, 1 atm) cm\u003csup\u003e?3\u003c/sup\u003e 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\u003csup\u003e3\u003c/sup\u003e (STP) cm\u003csup\u003e?3\u003c/sup\u003e).

• 单位
  陕西师范大学; 南京大学; 现代配位化学国家重点实验室