03 Fakultät Chemie
Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/4
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Item Open Access Cuttlebone-like V2O5 nanofibre scaffolds - advances in structuring cellular solids(2017) Knöller, Andrea; Runčevski, Tomče; Dinnebier, Robert E.; Bill, Joachim; Burghard, ZaklinaItem Open Access Differences in electrochemistry between fibrous SPAN and fibrous S/C cathodes relevant to cycle stability and capacity(2017) Warneke, Sven; Eusterholz, Michael; Zenn, Roland K.; Hintennach, Andreas; Dinnebier, Robert E.; Buchmeiser, Michael R.Two different Li/S cathodes are compared in terms of capacity (mA.h.gsulfur-1) and intermediates during discharge and charge. One cathode material is based on fibrous SPAN, a sulfur-containing material obtained via the thermal conversion of poly(acrylonitrile), PAN, in the presence of sulfur. In this material, sulfur is covalently bound to the polymeric backbone. The second cathode material is based on porous activated carbon fibers (ACFs) with elemental sulfur embedded inside the ACFs’ micropores. Cyclic voltammetry clearly indicates different discharge and charge chemistry of the two materials. While S-containing ACFs show the expected redox-chemistry of sulfur, SPAN does not form long-chain polysulfides during discharge; instead, sulfide is chopped off the polymer-bound sulfur chains to directly form Li2S. The high reversibility of this process accounts for both the high cycle stability and capacity of SPAN-based cathode materials.Item Open Access Shape control in wafer-based aperiodic 3D nanostructures(2014) Jeong, Hyeon-Ho; Mark, Andrew G.; Gibbs, John G.; Reindl, Thomas; Waizmann, Ulrike; Weis, Jürgen; Fischer, PeerControlled local fabrication of three-dimensional (3D) nanostructures is important to explore and enhance the function of single nanodevices, but is experimentally challenging. We present a scheme based on e-beam lithography (EBL) written seeds, and glancing angle deposition (GLAD) grown structures to create nanoscale objects with defined shapes but in aperiodic arrangements. By using a continuous sacrificial corral surrounding the features of interest we grow isolated 3D nanostructures that have complex cross-sections and sidewall morphology that are surrounded by zones of clean substrate.Item Open Access Crystal structure of 3-O-benzy 1-6,8-di-O-benzylidene-5,7-dideoxy-1,2-di-O-isopropylidene-5-nitro-L-glycero-D-galacto-octitol, (C6H5)(C4H6O2)[C3H3(NO2)(0H)(OCH2C6H5)][(C3H3O2)(CH3)2](2014) Peters, K.; Peters, E.-M.; Raczko, Jerzy; Jäger, VolkerC25H31NO8, orthorhombic, P212121 (No. 19), a = 10.137(2) Å, b = 28.990(4) Å, c = 8.190(2) Å, V= 2406.8 Å3, Ζ = 4, Rgt(F) = 0.071, Rw(F) = 0.046, T= 293 K.Item Open Access Crystal structure of trichloro(3,3’)-trimethylene- 2,2’-biquinoline)gold(III) chloroform hemisolvate, [(C9H5N)(CH3)][(C9H6N)(CH3)]AuCl3 · 0.5 CHCl3 and of tribromo(3,3’)-trimethylene-2,2’-biquinoline)gold(III) chloroform hemisolvate, [(C9H5N)(CH3)] [(C9H6N)(CH3)]AuBr3 · 0.5CHCl3(2014) Peters, K.; Peters, E.-M.; Schnering, H. G. von; Hönle, W.; Schmidt, R.; Binder, HerbertC21.5H16.5AuCl4.5N2, monoclinic, P12i/nl (No. 14), a = 9.777(2) Å, b = 18.734(4) Å, c = 12.339(2) Å, β = 101.87(3)°, V= 2211.7 Å3, Z = 4, Rgt(F) = 0.034, wR(F) = 0.031, T = 293 Κ.Item Open Access Crystal structure of pyridinogold(III) bromide, [AuBr2(C5H5N)2]+[AuBr4[AuBr3(C5H5N)]2, a frozen-in autoionization system(2014) Peters, K.; Peters, E.-M.; Schnering, H. G. von; Hönle, W.; Schmidt, R.; Binder, HerbertC10H10Au2Br6N2, monoclinic, Pl2/nl (No. 14), a = 11.395(2) A, b = 15.437(2) Å, c = 11.091(2) Å, β = 99.44(1)°, V= 1924.5 Å3 ,Z = 4, Rgt(F) = 0.063, wR(F) = 0.050, Τ = 293 Κ.Item Open Access Crystal structure of (1'S)-4,6-di-O-benzylidene-2,5-dideoxy-2-nitro-L-ribo-hexose diethyl acetal,(C6H5)(C4H6O2)[C3H3(OH)(NO2)](OC2H5)2(2014) Peters, Κ.; Peters, E.-M.; Raczko, Jerzy; Jäger, VolkerC17H25NO7, monoclinic, P1211 (No. 4), a = 12.296(9) Å, b = 8.866(3) A,c = 8.782(4) Å, β = 103.48(5)°, V= 930.9 Å3, Ζ = 2, Rgt(F) = 0.041, Rw(F) = 0.040, T = 293 K.Item Open Access Crystal structure of bis(3,3’-trimethylene-2,2’-biquinolinium)(1+) dibromoaurate(I)(1-) tetrabromoaurate(III)(1-), (C21H16N2H)2[AuBr2][AuBr4], a mixed valence Au(I)/Au(III) salt(2014) Hönle, W.; Peters, Κ.; Peters, E.-M.; Schnering, H. G. von; Schmidt, R.; Moya, S. A.; Gullpi, M.; Binder, HerbertC21H17AuBr3N2, triclinic, P-1 (No. 2), a = 10.296(2) Å, b = 12.875(3) Å,c = 8.901(2) Å, α = 105.84(2)°, β = 109.52(1)°, γ = 74.66(2)°, V = 1050.1 Κ , Ζ = 2, Rgt(F) = 0.046, wR(F) = 0.042, Τ = 293 Κ.Item Open Access Crystal structure of tribromo(3,3’-dimethyl-2,2’-biquinoline)gold(III) hemiglycolate, (C9H5CH3N)2AuBr3 · 0.5(CH2OH)2(2014) Peters, K.; Peters, E.-M.; Schnering, H. G. von; Hönle, W.; Schmidt, R.; Moya, S. A.; Gullpi, M.; Binder, HerbertC22H22AuBr3N202, monoclinic, P121/nl (No. 14), a = 13.071(2) Å ,b= 18.345(4) Å, c = 9.670(2) Å, β = 102.14(1)°, V = 2266.9 Å3, Ζ = 4, Rgt(F) = 0.044, wR(F) = 0.037, Τ =293 Κ.Item Open Access Crystal structure of 3,3’-trimethylene-2,2’-biquinolinium tetrabromoaurate(III), [C21H16N2H]+[AuBr4]-(2014) Hönle, W.; Peters, Κ.; Peters, E.-M.; Schnering, H. G. von; Schmidt, R.; Moya, S. A.; Pastene, R.; Gullpi, M.; Binder, HerbertC21H17AuBr4N2,monoclinic, P121/n1 (No. 14), a = 13.718(1) Å, b = 16.262(2) Å, c = 10.132(1) Å, β = 93.80(1)°, V = 2255.3 Å3, Ζ = 4, Rgt(F) = 0.055, wR(F) = 0.028, T = 293 Κ.