Enzyme-assisted Catalysis on black Titania Substrate Electrodes (EnCaSE)
About the Project
The widespread use of fuel cells and water splitting devices for energy generation and storage is restricted by the dependence on noble metal catalysts. There is a tremendous need for the development of efficient electrocatalysts made of Earth-abundant elements, as well as technologies that have a greener footprint and low or no CO2 emissions. Taking example from nature, hydrogenases are metallo-enzymes that catalyze the reaction of H2 to protons and electrons, as well as the reverse one, with an activity comparable to that of Platinum.
In this fascinating project, we grow and attach Hydrogenases on beautiful nanostructures, such as the nanotubes in the picture below (a and b), in order to make novel and cheap electrodes for water electrolysis. It is Hydrogenase that works now and not the expensive and rare Platinum. Moreover, we are very interested in visualizing the 3D structure of these enzymes and observe them on the surface of the nanotubes, and for this reason we will explore the power and possibilities of Transmission Electron Microscopy (TEM, picture c and d). This bioelectrode will be used in a system of artificial photosynthesis and generation of solar fuels by simultaneous water splitting and CO2 capture and utilization. In EnCaSE we are very concerned about the excessive CO2 amounts in our atmosphere and our technology is based on a greener approach for a safer future
The project is funded by Research Council of Norway, other support under NANO2021 program, project number 275058
- Marit Norderhaug Getz; Athanasios Eleftherios Chatzitakis; Xin Liu; Patricia Almeida Carvalho; Tor Svendsen Bjørheim & Truls Eivind Norby (2020). Voids in walls of mesoporous TiO2 anatase nanotubes by controlled formation and annihilation of protonated titanium vacancies. Materials Chemistry and Physics. ISSN 0254-0584. 239, s 121953
- Xin Liu; Patricia Almeida Carvalho; Marit Norderhaug Getz; Truls Eivind Norby & Athanasios Eleftherios Chatzitakis (2019). Black Anatase TiO2 Nanotubes with Tunable Orientation for High Performance Supercapacitors. Journal of Physical Chemistry C. ISSN 1932-7447. 126, s 21391- 21940
- Xinwei Sun; Kaiqi Xu; Christian Fleischer; Xin Liu; Mathieu Grandcolas; Ragnar Strandbakke; Tor Svendsen Bjørheim; Truls Eivind Norby & Athanasios Eleftherios Chatzitakis (2018). Earth-abundant electrocatalysts in proton exchange membrane electrolyzers. Catalysts. ISSN 2073-4344. 8:657, s 1- 41
- Xin Liu; Sanne Risbakk; Patricia Almeida Carvalho; Mingyi Yang; Paul Hoff Backe; Magnar Bjorås; Truls Eivind Norby & Athanasios Eleftherios Chatzitakis (2020). Hydrogenase-assisted catalysis on titania electrode oxides.
- Xin Liu; Athanasios Eleftherios Chatzitakis; Patricia Almeida Carvalho; Sanne Risbakk; Mingyi Yang; Paul Hoff Backe & Truls Eivind Norby (2019). Enzyme-assisted Catalysis on Titania Electrodes.