Sample interview questions: How do you assess the chemical stability and reactivity of materials in your research?
Sample answer:
Methods to Assess Chemical Stability and Reactivity of Materials:
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Accelerated Aging Tests: Exposing materials to elevated temperatures, moisture, or other aggressive conditions to accelerate deterioration and assess stability over time.
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Electrochemical Techniques: Using electrochemical cells to measure corrosion rates, electrochemical impedance, and other electrochemical properties that indicate reactivity.
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Spectroscopic Techniques: Employing X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy to analyze surface chemistry, identify reactive functional groups, and monitor chemical changes.
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Mass Spectroscopy: Analyzing gas or liquid products of degradation using mass spectrometry to detect volatile species and identify reaction mechanisms.
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Thermal Analysis: Using techniques such as thermogravimetric analysis (TGA)… Read full answer
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