78964 - Electrochemistry T

Course Unit Page

  • Teacher Catia Arbizzani

  • Credits 6

  • SSD CHIM/02

  • Language Italian

  • Campus of Bologna

  • Degree Programme First cycle degree programme (L) in Chemical and Biochemical Engineering (cod. 8887)

  • Course Timetable from Sep 23, 2021 to Dec 20, 2021

SDGs

This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

Affordable and clean energy

Academic Year 2021/2022

Learning outcomes

At the end of the course the student has acquired basic knowledge of electrochemistry. In particular, the student knows the thermodynamic and kinetic aspects of electrode processes and the fundamentals of transport and interactions of charged species. The student learns how to apply this knowledge in the field of electrochemical energy conversion and storage, as well as about the corrosion of materials.

Course contents

Fundaments:
• Electronic and ionic conductors
• Electrolytes
• Electrochemical Cells
• Faraday's Laws

Electric conduction in the Electrolytes:
• Ionic Mobility
• Conductance
• Conductivity and Kohlrausch law
• Tansport

Interionic Interactions:
• Chemical Potential
• Debye-Hückel theory of the solutions

Electrode Potentials:
• Nernst Equation
• Electrode Potential
• StandardPotential

Mass Transport:
• Flux
• Migration
• Diffusion
•Convection

Electrode-Solution Interface Structure:
• Structure of the Electrode/Solution Interface
• Double electric Layer
• Electrc potential at the Interface
• Polarizable and non-polarizable Interfaces
• Semiconductor electrodes

Elements of chemical and electrodic kinetics:
Review of chemical kinetics
• Reaction Mechanism
• Transition state theory
• Overvoltage
• Kinetics of heterogeneous electronic transfer and Butler-Volmer equation
• Effect of mass transport
• Marcus theory of electronic transfer

Electrochemical Investigation Techniques:
Cottrell law and chronoamperometry
• Linear scanning potential voltammetry
• cyclic voltammetry of species in solution and adsorbed on surface
• Electrochemical Impedance Spectroscopy (EIS)
• Electrochemical techniques coupled with spectroscopic techniques (absorption and emission)
• Electrochemically induced reaction mechanisms

Applications:
Electrochemical energy sources
• Electrocatalysis
• Fuel cells
• Electrochemical sensors
• Corrosion

Readings/Bibliography

• Slides and Notes from the Lessons
CHIMICA FISICA, P. Atkins e J. de Paula, Zanichelli
ELECTROCHEMISTRY, C.H. Hamann, A. Hamnett e W. Vielstich, 2 ed., Wiley-VCH, 2007
Electrochemical Methods - Fundamentals and Applications, A. J. Bard, L. R. Faulkner, Wiley (II edition), 2001

Teaching methods

Frontal Lessons, exercises and computer simulation of selected parts of the course

Possible distance teaching will be given through Microsoft Teams with the support of Microsoft 365 software suite.

Assessment methods

Written examination (three exercises to be solved and two open questions, 3 hours available for the exam) concerning topics discussed during the lessons.

6 maximum points will be awarded for each exercise / question. In addition, 3 additional points will be awarded: 1 for those who have answered both open questions, 1 for the ability to express with appropriate scientific terms and to orient themselves in the context of the course topics, 1 for the orderly and legible execution of the exercises and written text.

Official appeals will be set (see Alma Exams) or, possibly, appeals at the request of a suitable number of students. Requests should be sent by email.

Note: assessment methods could vary in case of extension of the anti-COVID measures. Students will be promptly informed by the teacher in case of variation.

Teaching tools

Slide Projection, blackboard, notebook

Possible distance teaching will be given through Microsoft Teams with the support of Microsoft 365 software suite.

Office hours

See the website of Catia Arbizzani