Podcast
Questions and Answers
What is the main advantage of using Electrochemical Impedance Spectroscopy (EIS) in studying electrochemical systems?
What is the main advantage of using Electrochemical Impedance Spectroscopy (EIS) in studying electrochemical systems?
- It only focuses on the charge-transfer process at the electrode-electrolyte interface.
- It allows for the exploration of the concentration of electroactive species. (correct)
- It can study material properties but not specific processes.
- It does not provide any information on conductance or resistance.
Which of the following is an element typically characterized in an electrical circuit using EIS?
Which of the following is an element typically characterized in an electrical circuit using EIS?
- Friction between the electrode and the electrolyte
- Chemical bonding at the electrode surface
- Temperature change within the electrolyte
- Mass-transfer from the bulk solution to the electrode surface (correct)
In an electrochemical cell, what does the solution resistance primarily refer to?
In an electrochemical cell, what does the solution resistance primarily refer to?
- Resistance caused by electrode corrosion
- Resistance offered by the electrolyte solution to ion movement (correct)
- Resistance related to free electron movement
- Resistance due to lack of charge transfer at the electrode surface
Which of the following best describes one of the features that can be explored using Electrochemical Impedance Spectroscopy?
Which of the following best describes one of the features that can be explored using Electrochemical Impedance Spectroscopy?
What does EIS focus on in terms of conductance, resistance, or capacitance of an electrochemical system?
What does EIS focus on in terms of conductance, resistance, or capacitance of an electrochemical system?
Which element of an electrochemical system involves charge-transfer, mass-transfer, and resistance of the electrolyte?
Which element of an electrochemical system involves charge-transfer, mass-transfer, and resistance of the electrolyte?
What is the primary purpose of Electrochemical Impedance Spectroscopy (EIS)?
What is the primary purpose of Electrochemical Impedance Spectroscopy (EIS)?
Which elements are typically present in an equivalent circuit used for EIS analysis?
Which elements are typically present in an equivalent circuit used for EIS analysis?
What is the main challenge in conducting EIS measurements?
What is the main challenge in conducting EIS measurements?
Which electrode is responsible for applying the potential in an electrochemical system during EIS?
Which electrode is responsible for applying the potential in an electrochemical system during EIS?
What does E(t) represent in the context of EIS measurements?
What does E(t) represent in the context of EIS measurements?
Which term describes the resistance encountered by ions moving through the electrolyte in an electrochemical system?
Which term describes the resistance encountered by ions moving through the electrolyte in an electrochemical system?
What is the essential prerequisite for the development of amperometric biosensors with high sensitivity and fast response characteristics?
What is the essential prerequisite for the development of amperometric biosensors with high sensitivity and fast response characteristics?
In amperometric biosensors, what happens to the redox species in the sensing layer?
In amperometric biosensors, what happens to the redox species in the sensing layer?
What happens to an element or atom in a compound when it is oxidized?
What happens to an element or atom in a compound when it is oxidized?
Why is a fast electron transfer important in biosensors?
Why is a fast electron transfer important in biosensors?
What role do redox species play in generating a current through the electrode in biosensors?
What role do redox species play in generating a current through the electrode in biosensors?
How does establishing a stable potential impact current flow in biosensors?
How does establishing a stable potential impact current flow in biosensors?
Flashcards are hidden until you start studying
