Measurement techniques for high temp. proton conductors

In summary, the conversation discussed proton conductivity measurement techniques, specifically electrochemical impedance spectroscopy (EIS). Other techniques such as AC impedance and AC conductivity, as well as DC four-probe and three-probe techniques, can also be used. The choice of a dry H2, wet H2, or wet O2 environment for conductivity measurements depends on the material and its intended application, with wet environments being used for water/moisture-rich environments and dry environments for dry environments.
  • #1
MantukasI
1
0
Hi,

my ph.d. thesis is related to high temperature proton conductors. So, I would like to ask about proton conductivity measurement techniques. I know one, electrochemical impedance spectroscopy (EIS). Who knows more?
Another question is about EIS measurements. Why conductivity measurements are carried out in dry H2, wet H2 or wet O2 environment?
 
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  • #2
Thanks in advance.In addition to electrochemical impedance spectroscopy (EIS), electrochemical conductivity measurements can also be performed using other techniques such as AC impedance and AC conductivity, as well as DC four-probe and three-probe techniques.Regarding the environment of the conductivity measurement, the choice of a dry H2, wet H2 or wet O2 environment will depend on the material being tested and the application it is intended for. Generally, a wet environment is used if the material is intended to be used in a water/moisture-rich environment such as fuel cells or batteries. A dry environment is used if the material is intended to be used in a dry environment such as gas sensors or semiconductors.
 

1. What is the purpose of measuring high temperature proton conductors?

The purpose of measuring high temperature proton conductors is to understand their properties and behavior at elevated temperatures, which is essential for the development and optimization of these materials for various applications such as fuel cells, gas separation membranes, and sensors.

2. What are some common measurement techniques used for high temperature proton conductors?

Some common measurement techniques for high temperature proton conductors include impedance spectroscopy, thermal analysis, X-ray diffraction, and nuclear magnetic resonance. These techniques can provide information on the electrical, thermal, structural, and chemical properties of the materials.

3. How do measurement techniques for high temperature proton conductors differ from those used for other materials?

Measurement techniques for high temperature proton conductors often require specialized equipment and procedures due to the extreme conditions at which these materials operate. For example, high temperature furnaces and special gas handling systems may be needed to perform accurate measurements.

4. What parameters can be measured using these techniques?

Measurement techniques for high temperature proton conductors can provide information on parameters such as proton conductivity, thermal conductivity, chemical composition, phase transitions, and oxygen vacancy concentration. These parameters are important for understanding the performance and stability of these materials.

5. How can measurement techniques for high temperature proton conductors contribute to the development of new materials?

Measurement techniques for high temperature proton conductors can provide valuable insights into the structure-property relationships of these materials. This information can help researchers design and develop new materials with improved proton conductivity, stability, and other desirable properties for specific applications.

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