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Träfflista för sökning "WFRF:(Tian Chao) ;lar1:(su)"

Sökning: WFRF:(Tian Chao) > Stockholms universitet

  • Resultat 1-6 av 6
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  • 2019
  • Tidskriftsartikel (refereegranskat)
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4.
  • Ma, Chao, et al. (författare)
  • Applications of X-ray and Electron Crystallography in Structural Investigations of Zeolites
  • 2021
  • Ingår i: Gaodeng xuéxiào huàxué xuébào. - 0251-0790. ; 42:1, s. 188-200
  • Tidskriftsartikel (refereegranskat)abstract
    • Zeolites, a class of crystalline microporous materials with unique channels or cavities, have excellent performance in adsorption, separation, and catalysis. In order to correlate the structure-properly relationship, it is essential to determine the crystallographic structures of zeolite at the atomic level. In this review, a series of conventional and emerging techniques regarding X-ray crystallography and electron crystallography for characterizing the crystallographic structures of zeolites through real space and reciprocal space are introduced. Furthermore, 85 recently discovered novel zeolites are systemically summarized based on the structure determination approaches and their chemical compositions. Nine zeolites with different framework type codes(FTCs) are further highlighted due to their unique synthetic methodologies or structural features.
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5.
  • Xu, Chao, et al. (författare)
  • A semiconducting microporous framework of Cd6Ag4(SPh)(16) clusters interlinked using rigid and conjugated bipyridines
  • 2014
  • Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 50:28, s. 3710-3712
  • Tidskriftsartikel (refereegranskat)abstract
    • Ternary supertetrahedral chalcogenolate clusters were interlinked with bipyridines into a microporous semiconducting framework with properties qualitatively different from those of the original clusters. Both the framework and the clusters were effective photocatalysts, and rapidly degraded the dye rhodamine B.
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6.
  • Xu, Chao, et al. (författare)
  • Stepwise assembly of a semiconducting coordination polymer [Cd8S(SPh)(14)(DMF)(bpy)](n) and its photodegradation of organic dyes
  • 2015
  • Ingår i: Dalton Transactions. - : Royal Society of Chemistry (RSC). - 1477-9226 .- 1477-9234. ; 44:14, s. 6400-6405
  • Tidskriftsartikel (refereegranskat)abstract
    • Chalcogenolate clusters can be interlinked with organic linkers into semiconducting coordination polymers with photocatalytic properties. Here, discrete clusters of Cd8S(SPh)(14)(DMF)(3) were interlinked with 4,4'-bipyridine into a one dimensional coordination polymer of [Cd8S(SPh)(14)(DMF)(bpy)](n) with helical chains. A stepwise mechanism for the assembly of the coordination polymer in DMF was revealed by an ex situ dynamic light scattering study. The cluster was electrostatically neutral and showed a penta-supertetrahedral structure. During the assembly each cluster was interlinked with two 4,4'-bipyridine molecules, which replaced the two terminal DMF molecules of the clusters. In their solid-state forms, the cluster and the coordination polymer were semiconductors with wide band gaps of 3.08 and 2.80 ev. They photocatalytically degraded rhodamine B and methylene blue in aqueous solutions. The moderate conditions used for the synthesis could allow for further in situ studies of the reaction-assembly of related clusters and coordination polymers.
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  • Resultat 1-6 av 6

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