Impedance spectroscopy of KBr

Team members

Laphas Precmcharoen, Song Runlin, Gao Jia

Idea

This project aims to study the electrical properties of Potassium Bromide (KBr) using impedance spectroscopy.

Materials

1. Electrochemical Impedance Spectroscopy (EIS) System

2. KBr samples

3. Two-electrode system

4. Frequency generator

5. Other compound samples (optional)

Procedure

1. Sample Preparation: Prepare the KBr samples for testing. This may involve grinding KBr into a fine powder and pressing it into a pellet.

2. Electrode Setup: Set up the two-electrode system. One electrode is placed on either side of the KBr sample.

3. Impedance Measurement: Connect the KBr sample to the EIS system. Apply a small perturbation signal, and measure the impedance over a range of frequencies.

4. Data Collection: Record the impedance data at each frequency.

5. Data Analysis: Analyze the collected data using appropriate software or mathematical models. This includes creating Nyquist or Bode plots to visualize the data and fitting the data to an equivalent circuit model.