Browsing by Subject "Solar fuels"
Now showing items 1-11 of 11
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A decade of ceria based solar thermochemical H2O/CO2 splitting cycle
( Elsevier Ltd , 2019 , Article)Since 2006, ceria is used as a redox reactive material for production of H2, CO, and syngas via a two-step solar driven thermochemical H2O/CO2 splitting cycle. Different forms of phase pure ceria were studied over a wide ... -
Application of cobalt incorporated Iron oxide catalytic nanoparticles for thermochemical conversion of CO2
( Elsevier B.V. , 2019 , Article)This investigation describes the application of the sol-gel synthesized CoxFe3?xO4 (CF) materials towards the solar thermochemical fuel production. The CF materials were derived by sol-gel method (where x was varied in the ... -
Assessment of CexZryHfzO2 based oxides as potential solar thermochemical CO2 splitting materials
( Elsevier Ltd , 2016 , Article)In this paper, we report the synthesis, characterization, and assessment of CexZryHfzO2 (CZH) materials for solar thermochemical splitting of CO2 in up to 20 consecutive thermochemical cycles. CZH materials with different ... -
Electrocatalytic arsenite oxidation in bicarbonate solutions combined with CO2 reduction to formate
( Elsevier , 2020 , Article)Sunlight-driven water-energy nexus technologies are receiving increasing attention. This study presents a hybrid electrochemical system that catalyzes the oxidation of As(III) to As(V) with a nanoparticulate TiO2 electrocatalyst ... -
Sol-gel synthesized NixFe3−xO4 for thermochemical conversion of CO2
( Elsevier B.V. , 2019 , Article)To identify the best suitable metal oxide (MO) to split H2O/CO2, it is critical to investigate the formation of O2 vacancies during thermal reduction (TR) step and the re-oxidation of the MOs via H2O or CO2 splitting (CS) ... -
Solar driven two-step CH4 reforming and H2O splitting using Al2O3 for Co-production of Al, syngas, and H2
( Elsevier Ltd , 2018 , Article)The thermodynamic equilibrium and efficiency analysis of the solar-driven Al2O3-based CH4 reforming and H2O splitting process is performed in two sections: (1) Al and syngas producing open process (AS), and (2) Al, syngas, ... -
Solar hydrogen production via thermochemical metal oxide - Metal sulfate water splitting cycle
( AIChE , 2015 , Conference Paper)This paper reports the thermodynamic analysis of solar H2 production via two-step thermochemical iron oxide - iron Sulfate (IO-IS) water splitting cycle. The first step belongs to the exothermic oxidation of FeO via SO2 ... -
Solar thermochemical splitting of H2O and CO2 using nonvolatile metal oxides
( AIChE , 2017 , Conference Paper)In this study, a Co ferrite/ZrO2 ceramic nanornixture was synthesized by the propylene-oxide-assisted sol-gel method. Cobalt, iron, and zirconium nitrate salts were used as the metal precursors, and ethanol and propylene ... -
Solar thermochemical ZnO/ZnSO4 water splitting cycle for hydrogen production
( Elsevier Ltd , 2017 , Article)In this paper, solar reactor efficiency analysis of the solar thermochemical two-step zinc oxide-zinc sulfate (ZnO-ZnSO4) water splitting cycle. In step-1, the ZnSO4 is thermally decomposed into ZnO, SO2, and O2 using solar ... -
Thermochemical splitting of CO2 using Co-precipitation synthesized Ce0.75Zr0.2M0.05O2-δ (M = Cr, Mn, Fe, CO, Ni, Zn) materials
( Elsevier Ltd , 2019 , Article)This work reports the investigation of the redox reactivity of Ce0.75Zr0.2M0.05O2-δ (M = Cr, Mn, Fe, Ni, Co, Zn) materials towards thermochemical CO2 splitting (CS) cycle. The Ce0.75Zr0.2M0.05O2-δ materials were prepared ... -
Transition metal doped ceria for solar thermochemical fuel production
( Elsevier Ltd , 2018 , Article)In this paper, the effect of doping of transition metal cations on thermal reduction and CO2 splitting ability of Ce0.9M0.1O2−δ materials (where, M = Ni, Zn, Mn, Fe, Cu, Cr, Co, Zr) is investigated by performing multiple ...