Hydrolytically Stable Phosphorylated Hybrid Silicas for Proton Conduction
作者： YG Jin , SZ Qiao , JC Diniz da Costa , Barry J Wood , Bradley P Ladewig
关键词: Electrochemistry 、 Molecule 、 Materials science 、 X-ray photoelectron spectroscopy 、 Conductivity 、 Thermogravimetric analysis 、 Proton 、 Infrared spectroscopy 、 Inorganic chemistry 、 Grotthuss mechanism
摘要: A new approach to the synthesis of fully immobilized phosphorus functionalized hybrid proton conductive gels based on phosphonic acid grafting is presented in this paper. The silicas with different amounts have been prepared and characterized using Fourier-transform infrared spectroscopy, X-ray photoelectron Brunauer-Emmett-Teller surface area analysis, thermogravimetric electrochemical techniques. conductivity materials depend strongly hydration, which increases by four orders magnitude over relative humidity (RH) range 20 100 %, up a maximum 0.027 S cm(-1) at degrees C % RE For reported samples, conduction believed occur within dynamic hydrogen-bond network formed P-OH groups water molecules Grotthuss mechanism. However, sites (P-OH) are likely be partially strong protonic receptors (N atoms amines), reduces free restricts transfer. Hydration may cause bonding structural rearrangement, results more as active and, therefore, greatly increased observed.
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core.ac.uk参考文章(41)
Atsunori Matsuda, Takao Kanzaki, Yoshinori Kotani, Masahiro Tatsumisago, Tsutomu Minami, Proton conductivity and structure of phosphosilicate gels derived from tetraethoxysilane and phosphoric acid or triethylphosphate Solid State Ionics. ,vol. 139, pp. 113- 119 ,(2001) , 10.1016/S0167-2738(00)00819-5
Hirokazu Munakata, Hiroto Chiba, Kiyoshi Kanamura, Enhancement on proton conductivity of inorganic–organic composite electrolyte membrane by addition of sulfonic acid group Solid State Ionics. ,vol. 176, pp. 2445- 2450 ,(2005) , 10.1016/J.SSI.2005.03.027
N.J. Clayden, A. Aronne, S. Esposito, P. Pernice, Solid state NMR study of phosphosilicate gels Journal of Non-crystalline Solids. ,vol. 345, pp. 601- 604 ,(2004) , 10.1016/J.JNONCRYSOL.2004.08.105
Atsunori Matsuda, Takao Kanzaki, Kiyoharu Tadanaga, Masahiro Tatsumisago, Tsutomu Minami, Medium temperature range characterization as a proton conductor for phosphosilicate dry gels containing large amounts of phosphorus Electrochimica Acta. ,vol. 47, pp. 939- 944 ,(2001) , 10.1016/S0013-4686(01)00810-6
D. Margolese, J. A. Melero, S. C. Christiansen, B. F. Chmelka, G. D. Stucky, Direct Syntheses of Ordered SBA-15 Mesoporous Silica Containing Sulfonic Acid Groups Chemistry of Materials. ,vol. 12, pp. 2448- 2459 ,(2000) , 10.1021/CM0010304
Ph. Colomban, A. Novak, Proton transfer and superionic conductivity in solids and gels Journal of Molecular Structure. ,vol. 177, pp. 277- 308 ,(1988) , 10.1016/0022-2860(88)80094-2
Atsunori Matsuda, Takao Kanzaki, Masahiro Tatsumisago, Tsutomu Minami, Comparison of structure and proton conductivity of phosphosilicate gels derived from several kinds of phosphorus-containing compounds Solid State Ionics. ,vol. 145, pp. 161- 166 ,(2001) , 10.1016/S0167-2738(01)00945-6
Klaus-Dieter Kreuer, Proton Conductivity: Materials and Applications Chemistry of Materials. ,vol. 8, pp. 610- 641 ,(1996) , 10.1021/CM950192A
L.D. White, C.P. Tripp, Reaction of (3-Aminopropyl)dimethylethoxysilane with Amine Catalysts on Silica Surfaces Journal of Colloid and Interface Science. ,vol. 232, pp. 400- 407 ,(2000) , 10.1006/JCIS.2000.7224
H STEININGER, M SCHUSTER, K KREUER, J MAIER, Intermediate temperature proton conductors based on phosphonic acid functionalized oligosiloxanes Solid State Ionics. ,vol. 177, pp. 2457- 2462 ,(2006) , 10.1016/J.SSI.2006.04.005