title: A systematic study on the stability of porous coordination polymers against ammonia.
abstract: 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 °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.
authors.affiliation: Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, 507 ACT Kyoto, 105 Jibucho, Fushimi-ku, Kyoto 612-8374 (Japan), Fax: (+81) 75-634-8441; Advanced Materials Research Laboratory, Sumitomo Chemical Co., Ltd. 6 Kitahara, Tsukuba, Ibaraki 300-3294 (Japan). tkajiwara@icems.kyoto-u.ac.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kajiwara
authors.forename: Masakazu
authors.initials: M
authors.lastname: Higuchi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Watanabe
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Higashimura
authors.forename: Teppei
authors.initials: T
authors.lastname: Yamada
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kitagawa
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry; D000327:Adsorption; D000641:Ammonia / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D016062:Porosity
chemical_list: D056831:Coordination Complexes; D009942:Organometallic Compounds; D011108:Polymers; D015082:2,2'-Dipyridyl; D000641:Ammonia; D003300:Copper; D010100:Oxygen
keywords: adsorption; ammonia; chemical stability; metal-organic frameworks; polymers