printlogo
http://www.ethz.ch/index_EN
Electrochemical Materials
 
print
  

Bork, Alexander

Alexander Bork

ETH Zürich
Alexander Bork
Professorship Electrochemical Materials
HPP P12
Hönggerbergring 64
8093 Zurich
Switzerland

Phone: +41 44 633 49 56
Fax: +41 44 633 12 49

Education

M.Sc. Elite Fuel Cells and Hydrogen, Technical University of Denmark (DTU), Copenhagen, Denmark, 2013
B.Sc. Physics, University of Copenhagen (KU), Denmark, 2011

Publications

Fellowships, Awards and Honors

Research

Alexander Bork investigates new materials for solar to fuel conversion. State of the art materials for solar to fuel conversion are non-stoichiometric binary metal oxides such as Ceria, CeO(2-δ) with conversion efficiencies of more than 18%. The solar-to-fuel conversion efficiency depends on the materials’ capacity of uptake and release of oxygen through redox reactions steered by changes in temperature through thermal solar energy cycles. Despite the promises of Ceria the possibility of increasing the efficiency seems limited.

In his work, a new strategy is used to optimize the solar to fuel conversion by replacement of binary metal oxides with perovskites for thermochemical splitting of H2O/CO2 to syngas. The perovskite structure allows for wider manipulation of the oxygen non-stoichiometry, defect chemistry, and catalytic activity to enhance uptake capacity and release of oxygen. The strategy involves development of design rules for perovskites for optimized solar to fuel conversion and better fundamental understanding of the thermodynamic and electrochemical properties of the perovskites and their solar to fuel conversion efficiency.

bork_res_4_STF

Thermochemical splitting of H2O and CO2 to syngas with metal oxide.
Ref: Electrochemical Materials, ETH

bork_res_5_STF_reactor

Solar to fuel reactor.
Ref: Romero, Manuel, and Aldo Steinfeld. Concentrating solar thermal power and thermochemical fuels. Energy & Environmental Science 5.11 (2012): 9234-9245.

bork_res_3

Intermediate step in Pechini synthesis of perovskite powder

 

Wichtiger Hinweis:
Diese Website wird in älteren Versionen von Netscape ohne graphische Elemente dargestellt. Die Funktionalität der Website ist aber trotzdem gewährleistet. Wenn Sie diese Website regelmässig benutzen, empfehlen wir Ihnen, auf Ihrem Computer einen aktuellen Browser zu installieren. Weitere Informationen finden Sie auf
folgender Seite.

Important Note:
The content in this site is accessible to any browser or Internet device, however, some graphics will display correctly only in the newer versions of Netscape. To get the most out of our site we suggest you upgrade to a newer browser.
More information

© 2017 ETH Zurich | Disclaimer | 13 September 2016
top