# Physical chemistry of solutions and colloids

Course Code : | 1002WETFEC |

Study domain: | Chemistry |

Academic year: | 2017-2018 |

Semester: | 1st semester |

Sequentiality: | Min. 8/20 for "Fundamentals of Chemistry I", "Fundamentals of chemsitry II, incl. practicum" and "Physics I". |

Contact hours: | 30 |

Credits: | 3 |

Study load (hours): | 84 |

Contract restrictions: | No contract restriction |

Language of instruction: | Dutch |

Exam period: | exam in the 1st semester |

Lecturer(s) | Annemie Bogaerts |

### 1. Prerequisites *

- competences corresponding the final attainment level of secondary school

an active knowledge of

- Dutch

- English

The students needs basic knowledge about mathematics, physics, chemical and statistical thermodyanmics, as taught in bachelor 1 and bachelor 2

### 2. Learning outcomes *

- The student can explain the basic principles of electrochemistry and colloid chemistry.
- The student can explain the Born charging model for ion-solvent interactions, including its limitations.
- The student can explain the Debije-Hückel model for ion-ion interactions, and make the link with the idea of activity coefficient;
- The student can explain the limitations of the Debije-Hückel limiting law for ion-ion interactions, and illustrate how this model can be improved.
- The student can explain how transport of ions in solution occurs, by diffusion and migration.
- The student can construct the first and second diffusion law of Fick, and solve these laws for a specific electrochemical problem.
- The student can make links between viscosity coefficient and molar conductivity of a solution, and diffusion coefficient and mobility of ions in solution.
- The student can explain the different models for the interaction between an electrode and a solution.
- The student can explain why colloid systems are stable or not, based on a model for attraction and repulsion.
- The student can explain how the stability of colloid systems can be measured by electrokinetic phenomena.

### 3. Course contents *

Colloid chemistry is important in almost every aspect of modern technology. It is omnipresent in our daily life, with many applications, in e.g., food, pharmacy, cosmetics, paper, paint and ink, photography,... It also plays an essential role in many biological processes at cell level. Electrochemistry also has many applications, among others in batteries, electrolysis and corrosion.

In this course, we try to better understand the underlying processes in solutions (as used in electrochemistry) and in colloidal systems. We make quantitative links between macroscopic properaties of matter and microscopic properties of molecules/atoms, by means of a number of models.

In physical electrochemistry, we start with the major macroscopic aspects of electrochemistry and some applications (batteries, corrosion, electrolysis). Subsequently, we look at the microscopic aspects of electrochemistry, i.e;, ionic solutions. We look at ion-solvent and ion-ion interaction, and we make the link between the behavior of ions in solution and the activity coefficient, by the Debije-Hückel model. We also discuss transport of ions in solution (diffusion and migration). Finally, we look at the behavior of electrodes in a solution, i.e., the formation of an electric double layer.

in the second part ('colloid chemistry'), we describe the behavior of colloidal systems, i.e., electrical double layer, which determines the stability of a colloidal system, and we describe the many applications.

Besides the theoretical basis, we also spend time to applying the theory for solving numerical examples.

### 4 International dimension*

### 5. Teaching method and planned learning activities

Personal work

### 6. Assessment method and criteria

Continuous assessment

Presentation

### 7. Study material *

#### 7.1 Required reading

Dutch course of the professor, based on English text books, which can be provided to non-Dutch speaking students.

**7.2 Optional reading**

The following study material can be studied voluntarily :The course is based on some English hand books, but they are not needed, as the lecture notes are very complete. Upon requent of the student, the professor can offer some extra material.

### 8. Contact information *

Prof. Dr. Annemie Bogaerts

Research group PLASMANT

Department of Chemistry, University of Antwerp

Campus Drie Eiken, Universiteitsplein 1

BE-2610 Wilrijk-Antwerp, Belgium

Tel: +32-3-265.23.77

Fax: +32-3-265.23.43

E-mail: annemie.bogaerts@uantwerpen.be