Preparation of Fast Proton-Conducting Phosphate Glass-Derived Hydrogels and their Electrochemical Properties

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When fine-sized 45ZnO·55P2O5 glass powders were mixed with water, hydration immediately occurred, resulting in the formation of a viscous hydrogel. 31P MAS-NMR spectra showed that the hydrogel contains orthophosphates and long polyphosphates. 45ZnO·55P2O5 glass-derived hydrogel (45ZP gel) showed high conductivities of 9.9 mS/cm at 30 °C. The conductivities were related to the proton amount in the hydrogel. The electric double-layer capacitor (EDC) cell for the 45ZP gel showed no oxidation-reduction processes in the range of 0~1 V and the specific capacities of 2.40 F/g. The possibility as an EDC electrolyte may be related to the conductivities of the hydrogels.

Info:

Periodical:

Advanced Materials Research (Volumes 15-17)

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer and C. Ravindran

Pages:

327-332

Citation:

T. Akamatsu et al., "Preparation of Fast Proton-Conducting Phosphate Glass-Derived Hydrogels and their Electrochemical Properties", Advanced Materials Research, Vols. 15-17, pp. 327-332, 2007

Online since:

February 2006

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$38.00

[1] K. Yamashita, N. Oikawa and T. Umegaki: Chem. Mater. Vol. 8 (1996), p.2697.

[2] K. Yamashita and S. Nakamura: J. Ceram. Soc. Japan Vol. 113 (2005), p.1.

[3] T. Akamatsu, T. Kasuga and M. Nogami: J. Non-Cryst. Solids Vol. 351 (2005), p.691.

[4] T. Akamatsu, T. Kasuga and M. Nogami: J. Ceram. Soc. Japan Vol. 114 (2006), p.92.

[5] B. E. Conway: J. Electrochem. Soc. Vol. 138 (1991), p.1539.

[6] M. Nogami and Y. Abe: Phys. Rev. Vol. B55 (1997), p.12108.

[7] E. Lippmaa, M. Magi, A. Samoson, G. Englehardt and A. R. Grimmer: J. Am. Chem. Soc. Vol. 102 (1980), p.4889.

[8] J. R. Van Wazer: Phosphorus and Its Compounds (Interscience, New York 1958).

[9] M. Nogami, K. Miyamura and Y. Abe: J. Electrochem. Soc. Vol. 144 (1997), p.2175.

[10] M. Nogami, Y. Goto, Y. Tsurita and T. Kasuga: J. Am. Ceram. Soc. Vol. 84 (2001), p.2553.

[11] Y. Abe and M. Takahashi: Chem. Phys. Lett. Vol. 411 (2005), p.302.

[12] A. Lewandowski and M. Galiński: J. Phys. Chem. Solids Vol. 65 (2004), p.281.

[13] M. Ishikawa, M. Ihara, M. Morita and Y. Matsuda: Electrochim. Acta Vol. 40 (1995), p.2217.

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