6.ENERGIEFORSCHUNGSPROGRAMM DER BUNDESREGIERUNG PDF

Faezragore Navigation and service Renewable energy sources will replace fossil fuels as part of an ongoing process. Mines, power stations, pipelines, wind farms and solar energy systems, electricity grids, vehicles, heating systems, and also roads, buildings, industrial facilities and information and communications systems must be adapted to work in the new system. These phenomena cause a loss of electrochemically active surface area and a concomitant increase of overpotential. Additional Information Section Catalysis Copyright: Development of cost-effective high-performance gas diffusion electrodes for polymer electrolyte membrane fuel cells PEM-FC with low Pt coverage on the basis of novel, graphitized 6.

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Additional Information Section Catalysis Copyright: Platinum based alloys supported on hollow graphitic spheres While Platinum-Cobalt and Platinum-Nickel based materials supported on carbon are counted as the most active catalyst for the oxygen reduction reaction ORRthey suffer from degradation phenomena like particle migration, particle agglomeration and particle dissolution. Because of the porous matrix, the diffusion of the reaction gas oxygen and the ionic transport of protons to the active centers on the alloy particle surface are unimpeded.

By applying different high resolution electron microscopy techniques, the location and elemental composition of the alloy particles within the hollow graphitic spheres and changes caused by different electrochemical treatments are analyzed.

Also, the effect of the alloy ordering on the activity-stability relationship is investigated. The energy system of the future must guarantee that Germany becomes one of the most energy-efficient and environmentally sound economies in the world while retaining competitive energy prices and high levels of prosperity.

Service Contact and travel information Publications Staff Downloads. In turn, this will cut emissions of carbon dioxide and lessen fossil fuel dependency.

The energy switch will reduce the use of fossil fuels. While Platinum-Cobalt and Platinum-Nickel based materials supported on carbon are counted as the most active catalyst for the oxygen reduction reaction ORR6. Ultimately, byprimary energy demand in Germany is to be halved compared with the figures for In addition, the pioneer role of German business in modern energy technology is to be extended, and technology 6. As part of its climate change policy for the period up tothe German government aims to reduce greenhouse gas emissions by 40 percent compared with Thus, structure-activity relationships are unraveled and prognoses of the long term stability of the catalyst can be made.

Paul Paciok, Marc Heggen. The long-term target is to cut emissions by between 80 and 95 percent by These phenomena cause a loss of electrochemically active surface area and a concomitant increase of overpotential. Byit is planned that renewable energy will cover some 60 percent of gross energy consumption and 80 percent of gross electricity consumption.

Renewable energy sources will replace fossil fuels as part of an ongoing process. Navigation and service Go to: Alongside the expansion of renewable energy sources, energy efficiency forms the second key pillar of the energy switch. Medium and long-term reform of energy supply structures are a prerequisite for a sustainable energy supply. TOP Related Articles.

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