Open HiWi Positions
Student research assistants (HiWi)
Open student research assistant position - We are hiring!
HiWi Position - Li - Ion battery based Photobatteries
Tasks and goals: Our battery research in the DFG Excellence Cluster livMatS focuses on Cathode and Anode Materials for photo rechargeable Li-Ion Battery Systems. You will build Li-Ion Batteries in Coin Cells and Swagelok T-Cell in half cell and full cell setups. Further the preparation of electrode slurries and their casting via doctor blading will be part of your work. The electrochemical characterization will be done with standard measurement protocols and the techniques include Galvanostatic Charge Discharge, Cyclic Voltammetry and Electrochemical Impedance Spectroscopy. You will learn all relevant lab techniques in preparing electrode slurries and electrodes for Li-Ion-Battery Anode and Cathodes. You will learn how to build different lab scale characterization setups for Li-Ion Batteries such as Coin Cells and Swagelok T-Cells and how to characterize Li-Ion Battery half cells and full cells electrochemically. All of the techniques used are scalable to industrial levels and actually used in nowadays battery production processes.
Expectations: We are looking for a motivated student from the field of chemistry or material science (a Bachelor or Master is not needed but of course welcome). Knowledge in electrochemistry and/or experience in synthesis is a plus.
Orga: HiWi positions are remunerated according to the usual rates and working hours can be arranged flexibly by arrangement.
Start: Immediately.
For more details contact anna.fischer@ac.uni-freiburg.de
Please send a short motivation letter (half page) and your CV to the above-mentioned e-mail addresses. We are looking forward to your application!
HiWi Position - Developing Single-Atom Catalysts for Electrochemical H2O2 Synthesis
Tasks and goals: In the project (Photo)electrochemical production of H2O2 for H2O2-fueled adaptive processes within the Cluster of Excellence Living, Adaptive, and Energy-autonomous Materials Systems (livMatS), we concentrate on developing efficient single-atom catalysts (SAC) for H2O2 production. We utilize electrochemical techniques as a clean and sustainable approach, serving as a promising successor to the traditional anthraquinone method, which involves complex chemical processes with environmental drawbacks.
SACs are a class of catalysts where individual metal atoms are dispersed on a support material. These catalysts offer high efficiency and selectivity due to precise control over the active sites, leading to enhanced catalytic performance in various chemical reactions. By leveraging the power of electrochemistry and cutting-edge catalyst design, we aim to produce decentralized H2O2 efficiently and sustainably, with minimal environmental impact, as a fuel for driving adaptive material processes.
As a student research assistant in this project, you will have the opportunity to delve into the synthesis of SAC and acquire fundamental knowledge of electrochemical techniques. You will also gain hands-on experience in several materials characterization techniques such as scanning electron microscopy and Raman spectroscopy.
Recommended prerequisites: While experience in synthesis and knowledge of electrochemistry is preferred, we welcome enthusiastic students who are keen to explore pioneer research. Following a thorough introduction, we anticipate independent work with proactive thinking, precision, and motivation. Proficiency and confidence in laboratory work are essential. Candidates for this student job should possess strong communication skills and the ability to collaborate effectively within a group setting.
Orga: HiWi positions are remunerated according to the usual rates and working hours can be arranged flexibly by arrangement.
Start: Immediately.
Please send a short motivation letter (half page) and your CV to sima.heidari@ac.uni-freiburg.de and anna.fischer@ac.uni-freiburg.de.
HiWi Position - Optimization of Metal Oxide-Coated Carbon Supports for Enhanced Durability and Efficiency in Heavy-Duty Fuel Cells
Tasks and goals: Are you passionate about delving into the cutting-edge realm of fuel cell technology? Join us in tackling the pressing issue of carbon corrosion in Pt/carbon catalysts, pivotal for heavy-duty fuel cell performance. Our research addresses the challenges faced in enhancing the durability and efficiency of Pt/carbon catalysts by metal oxide coatings, a critical aspect in advancing sustainable energy solutions. As a student assistant in this project, you will acquire practical skills in various materials characterization techniques such as electrochemistry, scanning electron microscopy, and surface area measurements that will be valuable for your academic and professional development.
Recommended prerequisites: While we value laboratory experience and proficiency in electrochemistry, we also embrace enthusiastic students who are eager to participate in advanced research. After receiving comprehensive training, we expect students to work independently, demonstrating proactive problem-solving skills, precision, and motivation. Competence and self-assurance in laboratory settings are crucial for success in this role. For this student job, we seek individuals with excellent communication abilities and a knack for collaborative teamwork.
Orga: HiWi positions are remunerated according to the usual rates and working hours can be arranged flexibly by arrangement.
Start: Immediately.
Please submit a half-page letter of interest outlining your academic background and motivation to work on the topic, along with your CV, to sima.heidari@ac.uni-freiburg.de, with anna.fischer@ac.uni-freiburg.de cc’d.
HiWi Position – In-Situ Electrochemical Transmission Electron Microscopy Data Processing
Position Available: Student Assistant for Electron Microscopy Data Analysis
Tasks and Goals: Join our research team focusing on electron microscopy data analysis for cutting-edge materials science projects. As a student assistant, you will work on processing and analyzing the electron microscopy datasets acquired from various in-situ experiments. Your tasks will include:
• Familiarizing yourself with Python libraries such as HyperSpy, PyTEM, pyXem, and Atomap for image processing and analysis.
• Implementing algorithms for image segmentation, feature extraction, and quantitative analysis of nanostructures.
Expectations: We are seeking a motivated student with a background in computer science, computer engineering, physics, chemistry, or materials science with experience in Python programming. While a Bachelor's or Master's degree is not required, it is welcomed. The ideal candidate should have:
• Proficiency in the Python programming language.
• Familiarity with image processing concepts and techniques, including machine learning methods.
• Previous experience with electron microscopy data analysis or a strong willingness to learn.
• Excellent communication skills and the ability to work collaboratively in a research team.
Orga: The position offers between 30 and 40 hours per month. The salary ranges from €370 to €450 per month, depending on the number of working hours and educational background.
Start: Immediate start date.
For more details and to apply, please contact Dr. S. Esmael Balaghi (esmael.balaghi@fit.uni-freiburg.de) and CC Prof. Dr. Anna Fischer (anna.fischer@ac.uni-freiburg.de). Please submit a short motivation letter (half page) and your CV to the provided email address. We look forward to receiving your application!