title: Metal-Organic Framework with Aromatic Rings Tentacles: High Sulfur Storage in Li-S Batteries and Efficient Benzene Homologues Distinction.
abstract: We designed and fabricated a fluorophore-containing tetradentate carboxylate ligand-based metal-organic framework (MOF) material with open and semiopen channels, which acted as the host for sulfur trapped in Li-S batteries and sensor of benzene homologues. These channels efficiently provide a π-π* conjugated matrix for the charge transfer and guest molecule trapping. The open channel ensured a much higher loading quantitative of sulfur (S content-active material, 72 wt %; electrode, 50.4 wt %) than most of the MOF/sulfur composites, while the semiopen channel possessing aromatic rings tentacles guaranteed an outstanding specific discharge capacity (1092 mA h g-1at 0.1 C) accompanied by good cycling stability. To our surprise, benefiting from special π-π* conjugated conditions, compound 1 could be a chemical sensor for benzene homologues, especially for 1,2,4-trimethylbenzene (1,2,4-TMB). This is the first example of MOFs materials serving as a sensor of 1,2,4-TMB among benzene homologues. Our works may be worthy of use for references in other porous materials systems to manufacture more long-acting Li-S batteries and sensitive chemical sensors.
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Meng-Ting
authors.initials: MT
authors.lastname: Li
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Kai-Sen
authors.initials: KS
authors.lastname: Zhao
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Xin-Long
authors.initials: XL
authors.lastname: Wang
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Zhong-Min
authors.initials: ZM
authors.lastname: Su
authors.affiliation: Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University , Changchun, 130024 Jilin, People's Republic of China.
authors.forename: Hai-Ming
authors.initials: HM
authors.lastname: Xie
keywords: Li−S batteries; aromatic rings tentacles; benzene homologues; chemical sensor; metal−organic framework (MOF)