Advertise
Advertise
4 Ph.D. Positions in electrochemistry are available at Risø National
Laboratory/Technica l University of Denmark
http://www.career.edu/index.php?post_id=3271&what=&where=
PhD. position 1
In-situ characterization of electrodes using novel SPM methods
In-situ, high temperature scanning probe microscope (SPM)
measurements on solid oxide fuel cell electrodes is a new method with
many perspectives for a more profound understanding of the details of
the fuel cell processes, including identifying the obstacles for the
ion transfer. The CAHT-SPM (controlled atmosphere high temperature
scanning probe microscope, working from 20 C to 750 C) will be
regularly upgraded to meet the demands occurring during the SERC
project. DME Danish Micro Engineering A/S, which constructed the
innovative CAHT-SPM at Risø, will co-supervise the study of the
effects of contact pressure and radius of curvature of single
particle electrode materials on the electrochemical reaction
resistance.
Ph.D. position 2:
Inexpensive electrocatalysts for O2 reduction
The objective is to search for new materials with good
electrocatalytical activities using DFT (density functional theory)
combined with experiments of synthesizing and testing identified
candidates; such materials may replace noble metals like Pt for use
in fuel cell electrodes. The work will involve both low and high
temperature fuel cells. The materials will be characterized by
conductivity relaxation and electrochemical impedance spectroscopy
(EIS) and tested practically at IRD A/S.
Ph.D. position 3
New inexpensive materials for robust oxygen sensor electrodes
Many potential applications of special O2 sensors may suffer from
short lifetime (evaporation, poisoning) and high costs of electrode
materials (e.g. Pt). Therefore, a study of perovskite structured
oxides of the types SrTiO3, LaCrO3 and LaMnO3 with suitable dopant
type and level will be performed, and the most promising compositions
will be tested by electrochemical impedance spectroscopy over time in
harsh realistic conditions. The materials will be characterized using
electrical and structural characterization tools such impedance
spectroscopy and high resolution electron microscopy. Also, the best
suited materials will be tested in various sensor configurations such
as the classical potentiometric oxygen zirconia sensor and in real
applications. PBI-Dansensor A/S will perform practical tests on the
best performing materials.
PhD. position 4:
Surface compositions and structures of clean materials for solid
oxide electrochemical cells
It is well known that surfaces and interfaces usually do not have the
same structure and composition as the bulk, and impurities tend to
accumulate on them. It is also well known that variation of surface
impurity levels may change the reaction rate by at least a factor of
10 even in cases where the best performing surfaces are not totally
clean. This study focuses on fabricating extremely clean surfaces in
order to see how fast the electrochemical processes may proceed when
such impurities are eliminated. The materials will be prepared and
cleaned under UHV conditions where also characterization with surface
sensitive methods is available. The efficiency of the well defined
oxides will be characterized by electrochemical impedance
spectroscopy.
More on: http://risoe-staged.risoe.dk/Job_career.aspx
All are 3-year positions.
The salary is app. 3000 Euro/month
Please send an application containing:
a formal application stating why you are interested and qualified for
this position
CV incl. references
University diplomas and grade transcripts
to: karin.vels@risoe.dk
Requirements:
- Education as an engineer, physicist or chemist
- Ability to work independently, to plan and carry out complicated
tasks, and to be a part of a large, dynamical group
- Good communication skills in English, both written and spoken
For position 4 :
- preferably experience with UHV and surface science
Contact:
Karin Hansen
P.O.Box 49
Roskilde, Denmark 4000
Phone: +45 4677 5796
http://www.career.edu/index.php?post_id=3271&what=&where=
Laboratory/Technica l University of Denmark
http://www.career.edu/index.php?post_id=3271&what=&where=
PhD. position 1
In-situ characterization of electrodes using novel SPM methods
In-situ, high temperature scanning probe microscope (SPM)
measurements on solid oxide fuel cell electrodes is a new method with
many perspectives for a more profound understanding of the details of
the fuel cell processes, including identifying the obstacles for the
ion transfer. The CAHT-SPM (controlled atmosphere high temperature
scanning probe microscope, working from 20 C to 750 C) will be
regularly upgraded to meet the demands occurring during the SERC
project. DME Danish Micro Engineering A/S, which constructed the
innovative CAHT-SPM at Risø, will co-supervise the study of the
effects of contact pressure and radius of curvature of single
particle electrode materials on the electrochemical reaction
resistance.
Ph.D. position 2:
Inexpensive electrocatalysts for O2 reduction
The objective is to search for new materials with good
electrocatalytical activities using DFT (density functional theory)
combined with experiments of synthesizing and testing identified
candidates; such materials may replace noble metals like Pt for use
in fuel cell electrodes. The work will involve both low and high
temperature fuel cells. The materials will be characterized by
conductivity relaxation and electrochemical impedance spectroscopy
(EIS) and tested practically at IRD A/S.
Ph.D. position 3
New inexpensive materials for robust oxygen sensor electrodes
Many potential applications of special O2 sensors may suffer from
short lifetime (evaporation, poisoning) and high costs of electrode
materials (e.g. Pt). Therefore, a study of perovskite structured
oxides of the types SrTiO3, LaCrO3 and LaMnO3 with suitable dopant
type and level will be performed, and the most promising compositions
will be tested by electrochemical impedance spectroscopy over time in
harsh realistic conditions. The materials will be characterized using
electrical and structural characterization tools such impedance
spectroscopy and high resolution electron microscopy. Also, the best
suited materials will be tested in various sensor configurations such
as the classical potentiometric oxygen zirconia sensor and in real
applications. PBI-Dansensor A/S will perform practical tests on the
best performing materials.
PhD. position 4:
Surface compositions and structures of clean materials for solid
oxide electrochemical cells
It is well known that surfaces and interfaces usually do not have the
same structure and composition as the bulk, and impurities tend to
accumulate on them. It is also well known that variation of surface
impurity levels may change the reaction rate by at least a factor of
10 even in cases where the best performing surfaces are not totally
clean. This study focuses on fabricating extremely clean surfaces in
order to see how fast the electrochemical processes may proceed when
such impurities are eliminated. The materials will be prepared and
cleaned under UHV conditions where also characterization with surface
sensitive methods is available. The efficiency of the well defined
oxides will be characterized by electrochemical impedance
spectroscopy.
More on: http://risoe-staged.risoe.dk/Job_career.aspx
All are 3-year positions.
The salary is app. 3000 Euro/month
Please send an application containing:
a formal application stating why you are interested and qualified for
this position
CV incl. references
University diplomas and grade transcripts
to: karin.vels@risoe.dk
Requirements:
- Education as an engineer, physicist or chemist
- Ability to work independently, to plan and carry out complicated
tasks, and to be a part of a large, dynamical group
- Good communication skills in English, both written and spoken
For position 4 :
- preferably experience with UHV and surface science
Contact:
Karin Hansen
P.O.Box 49
Roskilde, Denmark 4000
Phone: +45 4677 5796
http://www.career.edu/index.php?post_id=3271&what=&where=