Project

Electron beam induced degradation in oxide nanomaterials for green energy conversion

Publisher

Supervisor

Location

Greater Copenhagen area

Type of project

Experimental

Purpose

The purpose of the project is to study the effect of an electron beam on gadolinia-doped cerium oxide (CGO).

The experimental work

You will be trained in operating a transmission electron microscope (TEM). The materials you will work with is primarily nanofibers composed of gadolinia-doped cerium oxide (CGO), which has many applications and is for example becoming an important material in solid oxide electrolysis cells (SOEC). If time allows, you can also investigate other oxide nanostructures.

The experimental work will focus on changes in CGO when the material is exposed to the electron beam in the microscope. This can be changes in CGO morphology, crystal structure or Ce oxidation state). In the experiments you can vary the beam dose to determine how large a dose the CGO can tolerate before significant changes are observed. By using a heating stage you can make experiments where the combined effects of the electron beam and elevated temperatures are investigated.

Background

The transition from fossil fuels to renewables hinges on the successful storage of excess solar and wind energy. A promising energy storage method is high-temperature electrolysis via SOECs. In our EU funded project HEIST, we are developing a method to study active electrolysis cells in a TEM.

In a TEM, the high energy electron beam will always influence the investigated materials, sometimes by severely damaging them. When studying active electrolysis cells we need to be able to distinguish between changes in the material induced by the electrochemical environment and those induced by the electron beam. It is therefore necessary for us to know the effects of the beam alone.

Your TEAM

We think team spirit is important. You will be part of the HEIST team, which consists of a handful of researchers primarily from DTU Energy. Your main supervisor will be Søren Bredmose Simonsen who is the principle investigator in HEIST. You will work closely together with the two PhD-students in HEIST, Waynah Dacayan and Zhongtao Ma who will be co-supervising the project.

Competences after the project

·         Hands-on experience with transmission electron microscopy

  • Theoretical knowledge and experience with oxide nanostructures
  • Knowledge about solid oxide electrolysis cells

Prerequisites

Knowledge in solid state physics/chemistry and electron microscopy is an advantage






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Contact

Company / Organization

DTU Energi

Name

Søren Bredmose Simonsen

Position

Seniorforsker

Mail

sobrs@dtu.dk

Supervisor info

MSc Eng in Applied Chemistry

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Sustainable Energy

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Engineering, Photonics Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Physics and Nanotechnology

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

Msc in Earth and Space Physics and Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Chemical and Biochemical Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Engineering, Mechanical Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Materials and Manufacturing Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

MSc in Environmental Engineering

Supervisor

Søren Bredmose Simonsen

Co-supervisors

Waynah Lou Verdin Dacayan, Zhongtao Ma

Type

MSc thesis

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

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Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

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