Journal ArticleDOI
Screening of water-splitting thermochemical cycles potentially attractive for hydrogen production by concentrated solar energy
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TLDR
In this paper, a database of 280 water splitting thermochemical cycles was used to identify potentially attractive water splitting cycles for hydrogen production and evaluated them in the temperature range of 900-2000°C.About:
This article is published in Energy.The article was published on 2006-11-01. It has received 383 citations till now. The article focuses on the topics: Thermochemical cycle & Solar energy.read more
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Sustainable Conversion of Carbon Dioxide: An Integrated Review of Catalysis and Life Cycle Assessment
Jens Artz,Thomas Müller,Katharina Thenert,Johanna Kleinekorte,Raoul Meys,André Dirk Sternberg,André Bardow,Walter Leitner,Walter Leitner +8 more
TL;DR: The motivation to develop CO2-based chemistry does not depend primarily on the absolute amount of CO2 emissions that can be remediated by a single technology and is stimulated by the significance of the relative improvement in carbon balance and other critical factors defining the environmental impact of chemical production in all relevant sectors in accord with the principles of green chemistry.
Journal ArticleDOI
Recycling of carbon dioxide to methanol and derived products – closing the loop
TL;DR: Chemical recycling of CO2 to renewable fuels and materials, primarily methanol, offers a powerful alternative to tackle both issues, that is, global climate change and fossil fuel depletion.
Journal ArticleDOI
Anthropogenic Chemical Carbon Cycle for a Sustainable Future
TL;DR: The present Perspective extends the discussion of the innovative and feasible anthropogenic carbon cycle, which can be the basis of progressively liberating humankind from its dependence on diminishing fossil fuel reserves while also controlling harmful CO(2) emissions to the atmosphere.
Journal ArticleDOI
Sustainable hydrocarbon fuels by recycling CO2 and H2O with renewable or nuclear energy
TL;DR: In this paper, the authors review the many possible technological pathways for recycling CO2 into fuels using renewable or nuclear energy, considering three stages: CO2 capture, H2O and CO2 dissociation, and fuel synthesis.
Journal ArticleDOI
Renewable hydrogen production
John A. Turner,George M. Sverdrup,Margaret K. Mann,Pin-Ching Maness,B. Kroposki,Maria L. Ghirardi,Robert J. Evans,Dan Blake +7 more
TL;DR: The U.S. Department of Energy and the National Renewable Energy Laboratory are developing technologies to produce hydrogen from renewable, sustainable sources as discussed by the authors, and a cost goal of $2.00-$3.00 kg−1 of hydrogen has been identified as the range at which delivered hydrogen becomes cost competitive with gasoline for passenger vehicles.
References
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Journal ArticleDOI
Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions
Aldo Steinfeld,Aldo Steinfeld +1 more
TL;DR: In this article, a 2nd-law analysis performed on the closed cyclic process indicates a maximum exergy conversion efficiency of 29% (ratio of Δ G 298 K °| H 2 + 0.5 O 2 → H 2 O for the H 2 produced to the solar power input), when using a solar cavity-receiver operated at 2300 K and subjected to a solar flux concentration ratio of 5000.
Journal ArticleDOI
Thermochemical hydrogen production: past and present
TL;DR: In this paper, the processes for hydrogen production discussed in this paper are those for which water is the only material input and hydrogen and oxygen are the only source material outputs: H 2 O + X → XO + H 2 XO → X + 1/2 O 2
Journal ArticleDOI
Hydrogen production from water utilizing solar heat at high temperatures
TL;DR: In this paper, the authors investigated the feasibility of producing hydrogen and oxygen from water utilizing solar heat at high temperatures using a conceptual model and showed that the thermodynamic requirements for the direct thermal decomposer are difficult to realize from the structural viewpoint and that existing separation methods are not applicable for such a decomposition process if it is to attain sufficiently high thermal efficiencies.
Journal ArticleDOI
Life cycle assessment of hydrogen fuel production processes
TL;DR: In this paper, a life cycle assessment study has been carried out to investigate the environmental aspects of hydrogen production, and the benefits and drawbacks of competing hydrogen production systems are presented, and a complete and accurate identification and quantification of the environmental emissions has been attempted.
Journal ArticleDOI
Likely near-term solar-thermal water splitting technologies
TL;DR: In this paper, a two-and three-step thermochemical cycle to split water using solar-thermal processing is described. But the problem of high-temperature separation of H2 from O2 at these temperatures is not addressed.
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Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions
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