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SUMMARY:Energy\, Wealth and the Challenge for the Future
DTSTART:20180322T103000
DTEND:20180322T113000
DTSTAMP:20260510T225824Z
UID:132e67cd46de430ebf8a5a734fc9c0a082f6aae252b7036ef9d2ec97
CATEGORIES:Conferences - Seminars
DESCRIPTION:Andreas ZÜTTEL\nLMER\, ISIC\, SB\nEPFL Valais/Wallis\, Energy
 polis\nSion\nChE-605 - Highlights in Energy Research seminar series\nThe f
 irst publication of the global warming due to the increase of the CO2 conc
 entration in the atmosphere by Svante Arrhenius in 1896 in the Philosophic
 al Magazine was doubted and ignored for almost 100 years. Only at the end 
 of the last century the global consequences of the anthropic CO2 emission 
 became a major concern and science and technology focused on the conversio
 n of renewable energy (solar\, wind\, hydro) in order to reduce the depend
 ency on fossil fuels and reduce the emission of CO2. The recent developmen
 t in installed peak power of wind generators and photovoltaics makes stora
 ge of energy from renewable sources the greatest challenge of the coming 1
 0 years. The population globally is growing and in order to increase the w
 ealth the demand for energy and materials is expected to grow significantl
 y. Therefore\, the materials cycles have to be closed especially energy ma
 terials in order to overcome the negative effects of the fossil fuel combu
 stion on the environment and the limited global resources.\nThe technical 
 solution is to produce hydrogen from renewable electricity. Hydrogen produ
 ction by electrolysis is an established technology\, but currently large s
 cale electrolyzers in the GW range are not yet available. The storage of h
 ydrogen under high pressure\, in liquid form or in hydrides is a material 
 challenge. Hugh progress was made in the development of new hydrogen stora
 ge systems in the last 20 years and the gravimetric hydrogen density was i
 ncreased by an order of magnitude in hydrides. However\, based on todays k
 nowledge we will not be able to double the hydrogen density in materials a
 nymore and\, therefore\, the energy density is limited to approximately 50
 % of the energy density of liquid hydrocarbons.\nThe hydrogen can be used 
 to reduce CO2 from the atmosphere in order to synthesize liquid hydrocarbo
 ns. This requires large scale production of hydrogen from renewable energy
 \, hydrogen storage\, adsorption of CO2 from the atmosphere and finally a 
 well controlled reaction of H2 and CO2 to a specific\, preferably liquid\,
  product\, e.g. octane. The storage of liquid hydrocarbons is an establish
 ed technology.
LOCATION:I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
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