title: Highly selective and sensitive trimethylamine gas sensor based on cobalt imidazolate framework material.
abstract: A cobalt imidazolate (im) framework material [Co(im)2]n was employed to use as a trimethylamine (TMA) gas sensor and the [Co(im)2]n sensor can be easily fabricated by using Ag-Pd interdigitated electrodes. Gas sensing measurement indicated that the [Co(im)2]n sensor shows excellent selectivity, high gas response and a low detection limit level of 2 ppm to TMA at 75 °C. The good selectivity and high response to TMA of the sensor based on [Co(im)2]n may be attributed to the weak interaction between the TMA molecules and the [Co(im)2]n framework. That may provide an ideal candidate for detecting freshness of fish and seafood.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, People's Republic of China.
authors.forename: Er-Xia
authors.initials: EX
authors.lastname: Chen
authors.forename: Hong-Ru
authors.initials: HR
authors.lastname: Fu
authors.forename: Rui
authors.initials: R
authors.lastname: Lin
authors.forename: Yan-Xi
authors.initials: YX
authors.lastname: Tan
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D003217:Conductometry / Q000295:instrumentation*; D004566:Electrodes; D005504:Food Analysis / Q000295:instrumentation*; D005506:Food Contamination / Q000032:analysis*; D005740:Gases / Q000032:analysis / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry*; D008744:Methylamines / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D005740:Gases; D007093:Imidazoles; D008744:Methylamines; D003035:Cobalt; C023336:trimethylamine
keywords: cobalt imidazolate framework; gas sensor; selectivity; trimethylamine