Journal of Solid State Electrochemistry

, Volume 19, Issue 3, pp 907–912 | Cite as

Relationship between electrical conductivities and structure of hybrid materials derived from mixtures of zinc phosphate glasses with different phosphate-chain lengths and benzimidazole

  • Takahiro Oine
  • Hirotaka Maeda
  • Tatsuya Tsuzuki
  • Masanobu Nakayama
  • Toshihiro Kasuga
Original Paper


Here, we report unique anhydrous proton-conducting hybrid materials derived from mixtures of benzimidazole and zinc metaphosphate glass. Benzimidazole, which melts at 170 °C, caused breaking of the phosphate chains in the glasses, resulting in the formation of hybrid materials. In the present work, various hybrid materials were prepared to clarify the effects of parent glass composition on their electrical conductivities. In the case of 53P2O5 · 47ZnO glass, which contains Qp 1 and Qp 2 and Qp 3 groups, the phosphate chains were broken easily to form benzimidazole and Qp 0 groups. Qp n , where n is the number of bridging oxygens to neighboring tetrahedral, describes the bonding of PO4 tetrahedron. Hybrids prepared using benzimidazole and 42P2O5 · 58ZnO glass (which contains many Qp 1 groups) formed the smallest amounts of the Qp 0 group-containing products. The hybrid material prepared with 53P2O5 · 47ZnO glass showed the highest conductivity (e.g., ∼1 mS/cm at 190 °C). The electrical conductivities of the hybrid materials may be related to the amounts of Qp 0 group-containing products and benzimidazole.


Electrical conductivity Hybrid Zinc phosphate glass Benzimidazole Phosphate-chain length 



The authors are indebted to Hiroshi Morikawa and Kei Handa of Nagoya Institute of Technology for their assistance with experiments and helpful discussions.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Takahiro Oine
    • 1
  • Hirotaka Maeda
    • 2
  • Tatsuya Tsuzuki
    • 3
  • Masanobu Nakayama
    • 4
  • Toshihiro Kasuga
    • 1
  1. 1.Department of Frontier MaterialsNagoya Institute of TechnologyNagoyaJapan
  2. 2.Center for Innovative Young ResearchersNagoya Institute of TechnologyNagoyaJapan
  3. 3.Central Glass Co. Ltd.MatsusakaJapan
  4. 4.Department of Materials Science and EngineeringNagoya Institute of TechnologyNagoyaJapan

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