A Systematic Study on the Stability of Porous Coordination Polymers against Ammonia

作者：Kajiwara Takashi^*; Higuchi Masakazu; Watanabe Daisuke; Higashimura Hideyuki; Yamada Teppei; Kitagawa Hiroshi

来源：Chemistry - A European Journal, 2014, 20(47): 15611-15617.

DOI：10.1002/chem.201403542

• adsorption
• ammonia
• chemical stability
• metal-organic frameworks
• polymers

To establish a strategy for designing porous coordination polymers (PCPs) for ammonia capture, the first systematic study on the stability of PCPs against ammonia was conducted. Various types of PCPs were investigated by comparing their powder XRD patterns before and after treatment with ammonia. Among the PCPs tested, ZIF-8, MIL-53(Al), Al-BTB, MOF-76(M) (M=Y or Yb), MIL-101(Cr), and MOF-74(Mg) were stable up to 350 degrees C under an ammonia atmosphere at ambient pressure. The origin of the stability of PCPs is discussed from the viewpoint of their components, metal cations, and organic linkers. Furthermore, adsorption isotherm measurements show that the adsorptive behavior of PCPs is independent of their stability.

• 出版日期2014-11-17