Utveckling av ytor och gränsytor för tillämpningar inom förnybar energi -steg II
Tidsperiod: 2013-01-01 till 2016-12-31
Budget: 3 787 000 SEK
Today the main source of hydrogen is natural gas, a non-renewable, limited resource. The steam-based process for extracting hydrogen from the gas generates carbon dioxide - one of the primary global warming gases. To circumvent these problems, we will explore alternative strategies by developing new materials. A water-splitting material that is simultaneously efficient, inexpensive, and stable is still missing. This project will concentrate on the following areas of fundamental importance:Water hydrolysis for efficient production of hydrogen; (a) direct coupling of the solar spectrum, and (b) use of ?sustainable? electrical energy for water electrolysis. For both of these approaches, a main thrust will be to develop a detailed knowledge about the mechanism underlying water splitting. Hybrid materials (based on diamond) will for this purpose be developed with the aim to maximize the surface area, catalytic activity, in addition to optimized chemical and electrochemical stability. Bioinspired and biomimetic energy conversion; (a) development of diamond/protein bioelectronics systems, and (b) development of artificial (or organic) photosynthesis systems for production of hydrogen. For both of these subprojects, there will be a main focus on the development of nano-structuring and nano-terminations of electrode surfaces, and on the possibility for a fast and efficient electron transfer between the biosystem and the electrode surface.