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Synthesis of Medium-temperature Protonic Conductor CsHSO4-Al2O3

Synthesis of Medium-temperature Protonic Conductor CsHSO₄-Al₂O₃

College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China

State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China

Corresponding Author Email:

shenhangyan@cjlu.edu.cn

Received:

2 July 2013

| |

Accepted:

15 July 2013

| | Citation

v16n04a05_p273-278.pdf

OPEN ACCESS

Abstract:

In this study, different methods are used to synthesize novel medium-temperature protonic conductors from CsHSO₄ and mesoporous Al₂O₃. X-ray diffraction, scanning electron microscopy, thermogravimetric analysis and differential scanning calorimetry, and nitrogen adsorption-desorption isotherms are performed to investigate the structures and properties of CsHSO₄-Al₂O₃ conductors. Results show that the proton conductivities of the prepared CsHSO₄-Al₂O₃ conductors increase as temperature increases from 100 °C to 200 °C. The optimum method involves mixing the equimolar CsHSO₄ and Al₂O₃ with 5 ml ethanol and subsequently ball milling at a rotating speed of 200 rpm for 2 h. The highest proton conductivity obtained in this study is 1.06×10^-6 S·cm^–1 at 200 °C.

Keywords:

Composite; Proton conductivity; Proton carrier

1. Introduction

2. Experiment

3. Results and Discussion

4. Conclusions

5. Acknowledgements

References

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Synthesis of Medium-temperature Protonic Conductor CsHSO4-Al2O3