Use of high-temperature gas-tight electrochemical cells to measure electronic transport and thermodynamics in metal oxides
- Argonne National Lab., IL (United States). Energy Technology Div.
By using a gas-tight electrochemical cell, the authors can perform high-temperature coulometric titration and measure electronic transport properties to determine the electronic defect structure of metal oxides. This technique reduces the time and expense required for conventional thermogravimetric measurements. The components of the gas-tight coulometric titration cell are an oxygen sensor, Pt/yttria stabilized zirconia (YSZ)/Pt, and an encapsulated metal oxide sample. Based on cell design, both transport and thermodynamic measurements can be performed over a wide range of oxygen partial pressures (pO{sub 2} = 10{sup {minus}35} to 1 atm). This paper describes the high-temperature gas-tight electrochemical cells used to determine electronic defect structures and transport properties for pure and doped-oxide systems, such as YSZ, doped and pure ceria (Ca-CeO{sub 2} and CeO{sub 2}), copper oxides, and copper-oxide-based ceramic superconductors, transition metal oxides, SrFeCo{sub 0.5}O{sub x}, and BaTiO{sub 3}.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 554850
- Report Number(s):
- ANL/ET/CP-93870; CONF-9709137-; ON: DE98050330; TRN: 98:008767
- Resource Relation:
- Conference: Workshop on defect chemical nature of advanced materials, Seoul (Korea, Republic of), 29 Sep - 1 Oct 1997; Other Information: PBD: [1997]
- Country of Publication:
- United States
- Language:
- English
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