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Isothermal Water Splitting

Roeb, Martin and Sattler, Christian (2013) Isothermal Water Splitting. Science, 341 (6145), pp. 470-471. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.1241311 ISSN 0036-8075

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Official URL: http://www.sciencemag.org/content/341/6145/470.summary

Abstract

The potential of solar radiation as an infinite resource of renewable energy is widely recognized. The challenge is to convert it as efficiently as possible into useful energy forms such as hydrogen or liquid carbonaceous fuels. Thermochemical cycles are a number of consecutive chemical reactions (≥2) that lower the maximum temperature compared to a single chemical reaction. Typical temperatures for these cycles to reach full conversion range from 800°C to 2000°C. The necessary solar heat can be generated by concentrating optics that direct the solar radiation on a single point—in solar towers or central receiver systems. To use the solar power efficiently and economically, losses must be minimized, with major factors being the minimization of re-radiation and the reduction of gases that are used to transport the reactant. As pointed out by Muhich et al. (1) on page 540 of this issue, a particularly important factor in this respect is the minimization of temperature differences between reaction steps. However, the necessary temperatures are high, and it has yet to be proven that the materials and components are stable over a long time to make the processes economically attractive.

Item URL in elib:https://elib.dlr.de/83695/
Document Type:Article
Title:Isothermal Water Splitting
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Roeb, MartinMartin.roeb (at) dlr.deUNSPECIFIED
Sattler, Christianchristian.sattler (at) dlr.deUNSPECIFIED
Date:2 August 2013
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:341
DOI :10.1126/science.1241311
Page Range:pp. 470-471
Publisher:American Association for the Advancement of Science (AAAS)
ISSN:0036-8075
Status:Published
Keywords:thermochemical cycles, isothermal, water splitting, hydrogen, CO2 splitting, solar fuels
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Verfahrenstechnik (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:05 Aug 2013 14:46
Last Modified:08 Mar 2018 18:50

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