Catalytic enhancement of production of solar thermochemical fuels: opportunities and limitations

Coronado, Juan M.; Bayón, Alicia

doi:10.1039/d3cp00609c

Cited by 5 publications

(1 citation statement)

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“…14–16 To date, various novel materials with promising intrinsic thermodynamics and kinetics have been reported, 17–19 where most research on thermochemical kinetic modeling is based on the first-order model or Arrhenius expression. 20–22 By fitting this type of expression with the experimental reaction rate curves, the optimal kinetic expressions are obtained for predicting the reaction rates at different temperatures and oxygen partial pressures. However, employing these models is challenging due to the lack of information on product and charge carrier concentrations to determine the rate-determining step.…”

Section: Introductionmentioning

confidence: 99%

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Zhao,

Deng,

Lin

2023

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Zhao,

Deng,

Lin

2023

J. Mater. Chem. A

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Boosted Solar Thermochemical Low‐Temperature CO₂ Splitting On Pt/CeO₂ by Interface Catalysis

Zong,

Shen,

Han

et al. 2024

ChemSusChem

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Solar thermochemical CO2 splitting using metal oxides is considered as a promising approach to produce solar fuels since it is capable to tap abundant sunlight directly and store solar energy in the renewable fuel. It remains a grand challenge to achieve highly efficient CO2 splitting at low temperature (<800 oC) due to insufficient activation of metal oxides for CO2.Herein, the introduction of a small amount of Pt was found to be able to greatly increase the performance of CO2 splitting with the highest peak CO production rate of about 65 mL min‐1 g‐1, CO productivity of about 53 mL g‐1, nearly 100% CO2 conversion and long‐term stability for 0.5Pt/CeO2 which exceeded most of the state‐of‐the‐art transition metals‐based oxides even at lower temperature (700 oC). This could be attributed to the addition of Pt leading to the formation of an interface (Pt0‐Ov‐Ce3+) after CH4 reduction, which improved CO2 activation and dissociation due to beneficial breakage of C=O bond by the cooperation of Pt0 and oxygen vacancies in the interface.

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An updated review and perspective on efficient hydrogen generation via solar thermal water splitting

Tran,

Warren,

Wilson

et al. 2024

WIREs Energy & Environment

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Solar thermal water splitting (STWS) produces renewable (or green) hydrogen from water using concentrated sunlight. Because STWS utilizes energy from the entire solar spectrum to drive the reduction–oxidation (redox) reactions that split water, it can achieve high theoretical solar‐to‐hydrogen efficiencies. In a two‐step STWS process, a metal oxide that serves as a redox mediator is first heated with concentrated sunlight to high temperatures (T >1000°C) to reduce it and evolve oxygen. In the second step, the reduced material is exposed to steam to reoxidize it to its original oxidation state and produce hydrogen. Various aspects of this process are comprehensively reviewed in this work, including the reduction and oxidation chemistries of active materials considered to date, the solar reactors developed to facilitate the STWS reactions, and the effects of operating conditions—including the recent innovation of elevated oxidant pressure—on efficiency. To conclude the review, a perspective on the future optimization of STWS is provided.This article is categorized under: Sustainable Energy > Solar Energy Emerging Technologies > Hydrogen and Fuel Cells Emerging Technologies > New Fuels

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Catalytic enhancement of production of solar thermochemical fuels: opportunities and limitations

Abstract: Solar thermochemical fuels are a promising low-carbon alternative to conventional fossil fuels, which must be swiftly phased out to mitigate the consequences of climate change. Thermochemical cycles powered by concentrating...

Cited by 5 publications

References 104 publications

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Boosted Solar Thermochemical Low‐Temperature CO₂ Splitting On Pt/CeO₂ by Interface Catalysis

An updated review and perspective on efficient hydrogen generation via solar thermal water splitting

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Catalytic enhancement of production of solar thermochemical fuels: opportunities and limitations

Abstract: Solar thermochemical fuels are a promising low-carbon alternative to conventional fossil fuels, which must be swiftly phased out to mitigate the consequences of climate change. Thermochemical cycles powered by concentrating...

Cited by 5 publications

References 104 publications

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model

Boosted Solar Thermochemical Low‐Temperature CO2 Splitting On Pt/CeO2 by Interface Catalysis

An updated review and perspective on efficient hydrogen generation via solar thermal water splitting

Contact Info

Product

Resources

About

Boosted Solar Thermochemical Low‐Temperature CO₂ Splitting On Pt/CeO₂ by Interface Catalysis