Electrical conduction of dense Ga3+-doped SnP2O7–SnO2 composite ceramic at intermediate temperatures
Source abstract
Abstract
Abstract A dense Ga3+-doped SnP2O7–SnO2 composite ceramic (9 mol% Ga3+) was prepared by reacting a porous 9 mol% Ga3+-doped SnO2 substrate with an 85% H3PO4 solution at 600 °C. The XRD result confirmed that an SnP2O7 phase grows on the internal surface of the SnO2 substrate. The highest conductivity was observed in dry air atmosphere at 350 °C to be 2.26×10−2 S cm−1 and in wet air atmosphere at 275 °C to be 3.79×10−2 S cm−1,. The lg σ~lg ( p O 2 ) plot result indicated that the composite ceramic was almost a pure ionic conductor under high oxygen partial pressure and a mixed conductor of ion and electron under low oxygen partial pressure.
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Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Gas Sensing Nanomaterials and Sensors · Solid-state spectroscopy and crystallography
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References (23)
Show source-provided references
1. Cathode-supported tubular solid oxide fuel cell technology: a critical review10.1016/j.jpowsour.2013.03.001 ↗
2. Proton conductive YSZ-phosphate composite electrolyte for H2S SOFC10.1016/j.ceramint.2010.06.002 ↗
3. Aqueous tape casting of micro and nano YSZ for SOFC electrolytes10.1016/j.ceramint.2013.03.097 ↗
4. Solid acids as fuel cell electrolytes10.1038/35073536 ↗
5. Electrochemical and structural study of Ce0.8Sm0.2−xLaxO1.9 electrolyte materials for SOFC10.1016/j.ceramint.2013.01.036 ↗
6. Synthesis and electrical properties of co-doping with La3+, Nd3+, Y3+, and Eu3+ citric acid-nitrate prepared samarium-doped ceria ceramics10.1016/j.ceramint.2012.10.230 ↗
7. Ionic conduction in Sn0.9Mg0.1P2O7 at intermediate temperatures10.3866/PKU.WHXB201210101 ↗
8. Ionic conduction in Sn1−xScxP2O7 for intermediate temperature fuel cells10.1016/j.jpowsour.2010.07.067 ↗
9. Structure, water uptake, and electrical conductivity of TiP2O710.1111/j.1551-2916.2010.04281.x ↗
10. Studies on ionic conductivity of Sr2+-doped CeP2O7 electrolyte in humid atmosphere10.1021/jp311547g ↗
11. An oxide ion and proton co-ion conducting Sn0.9In0.1P2O7 electrolyte for intermediate-temperature fuel cells10.1149/1.2988135 ↗
12. Intermediate temperature proton conduction in Al-doped SnP2O710.1149/1.2789296 ↗
13. Direct oxidation of methane to methanol at low temperature and pressure in an electrochemical fuel cell10.1002/anie.200703928 ↗
14. A Sb-doped SnP2O7 solid proton conductor for intermediate temperature fuel cells10.1002/fuce.200800032 ↗
15. Selective electrochemical oxidation of carbon by active oxygen for potential application as a sensor for diesel particulates10.1016/j.snb.2009.04.044 ↗
16. Synthesis and electrical conductivity of bulk tetra-valent cerium pyrophosphate
17. Synthesis and characterization of dense SnP2O7–SnO2 composite ceramics as intermediate-temperature proton conductors10.1039/C0JM02596H ↗
18. Proton conduction in non-doped and acceptor-doped metal pyrophosphate (MP2O7) composite ceramics at intermediate temperatures10.1039/c2jm15335a ↗
19. Electrical conduction in dense Mg2+-doped SnP2O7–SnO2 composite ceramic for intermediate temperature fuel cell10.1016/j.jpowsour.2012.09.001 ↗
20. Intermediate temperature ionic conduction in Sn1−xGaxP2O710.1016/j.jpowsour.2010.03.087 ↗
21. Influence of the additives and processing conditions on the characteristics of dense SnO2-based ceramics10.1023/A:1024459307992 ↗
22. Proton conduction in In-doped SnP2O7 at intermediate temperatures10.1149/1.2210669 ↗
23. Dense 5% Al3+-doped SnP2O7–SnO2 composite ceramic for application in intermediate temperature fuel cell10.3866/PKU.WHXB201302254 ↗