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Project Title:

Modification and characterization of fuel producing photoelectrodes with new organic and inorganic surface layers

Ref.No.: 136

Project Type and Category:

Basic research

Project Duration:

See ref. No. 73

Project Participants:

F. Philipps, E. Feil, E. Mennenkamp, M. Vetter, Institut für Physikalische Elektronik, Universität Stuttgart

Sponsor:

# See ref. No. 73

Project Budget and
Funding:

# See ref. No. 73

Project Description and Objectives:

The research activities in this project are focused on the development of
1. fundamentals of hydrogen production by photoelectrochemical solar cells and
2. hydrogen storage as a liquid fuel by electrochemical CO2-reduction.
In Task 1, the main investigation is carried out to improve the electrocatalytic activity, the efficiency and the stability of a photoelectrochemical cell. The photo-electrodes are covered by different catalysts to decrease the electrochemical losses of the H2 evolution [1,2]. The electrodes covered by chemically inert organic protective layers e.g. polymers and inorganic tunnel layers e.g. EIS contacts, to protect against corrosion are investigated. Additionally, the development of coatings with small values of interface states reduces the recombination of charge carriers at the semiconductor surface and thereby enhance the efficiency of the solar cell.
In Task 2, the work is done to develop efficient and selective catalysts for CO2 reduction. In order to achieve the high current densities for electrochemical CO2 electrolysis, the investigation is done for gas diffusion electrodes, high pressure electrolysis in liquid CO2 and high temperature CO2 reduction.

Technical Goals:

See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm

Project Status

#

Preliminary or Final Results:

See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm

Related Reference Papers and Other Publications:

See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm

Back to list of projects

Project Title: Modification and characterization of fuel producing photoelectrodes with new organic and inorganic surface layers		Ref.No.: 136
Project Type and Category:	Basic research
Project Duration:	See ref. No. 73
Project Participants:	F. Philipps, E. Feil, E. Mennenkamp, M. Vetter, Institut für Physikalische Elektronik, Universität Stuttgart
Sponsor:	# See ref. No. 73
Project Budget and Funding:	# See ref. No. 73
Project Description and Objectives:	The research activities in this project are focused on the development of 1. fundamentals of hydrogen production by photoelectrochemical solar cells and 2. hydrogen storage as a liquid fuel by electrochemical CO2-reduction. In Task 1, the main investigation is carried out to improve the electrocatalytic activity, the efficiency and the stability of a photoelectrochemical cell. The photo-electrodes are covered by different catalysts to decrease the electrochemical losses of the H2 evolution [1,2]. The electrodes covered by chemically inert organic protective layers e.g. polymers and inorganic tunnel layers e.g. EIS contacts, to protect against corrosion are investigated. Additionally, the development of coatings with small values of interface states reduces the recombination of charge carriers at the semiconductor surface and thereby enhance the efficiency of the solar cell. In Task 2, the work is done to develop efficient and selective catalysts for CO2 reduction. In order to achieve the high current densities for electrochemical CO2 electrolysis, the investigation is done for gas diffusion electrodes, high pressure electrolysis in liquid CO2 and high temperature CO2 reduction.
Technical Goals:	See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm
Project Status	#
Preliminary or Final Results:	See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm
Related Reference Papers and Other Publications:	See: www.uni-stuttgart.de/UNIuser/sfb270/A4_1_E.htm