Solar thermochemical conversion of CO2 into fuel via two-step redox cycling of non-stoichiometric Mn-containing perovskite oxides

2015 ◽  
Vol 3 (7) ◽  
pp. 3536-3546 ◽  
Author(s):  
Antoine Demont ◽  
Stéphane Abanades
Keyword(s):  
Metal Oxide ◽  
Perovskite Oxides ◽  
Redox Cycling ◽  
Lanthanum Manganite ◽  
Thermochemical Conversion ◽  
Redox Cycles ◽  
Solar Thermochemical ◽  
A Site ◽  
Manganite Perovskites

A-site and B-site substituted lanthanum manganite perovskites were synthesized and characterized for application in two-step metal oxide redox cycles for thermochemical splitting of CO2.

Lanthanum Manganite Perovskites with Ca/Sr A-site and Al B-site Doping as Effective Oxygen Exchange Materials for Solar Thermochemical Fuel Production

2015 ◽  
Vol 3 (11) ◽  
pp. 1130-1142 ◽  
Author(s):  
Thomas Cooper ◽  
Jonathan R. Scheffe ◽  
Maria E. Galvez ◽  
Roger Jacot ◽  
Greta Patzke ◽  
...  
Keyword(s):  
Oxygen Exchange ◽  
Lanthanum Manganite ◽  
Fuel Production ◽  
Solar Thermochemical ◽  
A Site ◽  
Manganite Perovskites

scholarly journals Thermodynamic and kinetic assessments of strontium-doped lanthanum manganite perovskites for two-step thermochemical water splitting

2014 ◽  
Vol 2 (33) ◽  
pp. 13612-13623 ◽  
Author(s):  
Chih-Kai Yang ◽  
Yoshihiro Yamazaki ◽  
Aykut Aydin ◽  
Sossina M. Haile
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Lanthanum Manganite ◽  
Fuel Production ◽  
Solar Thermochemical ◽  
Manganite Perovskites

Hydrogen production increases with increasing Sr content, but at a kinetic penalty; intermediate Sr levels are advantageous for solar thermochemical fuel production.

Influence of A-site substitution on ESR spectra of lanthanum manganite perovskites

2006 ◽  
Vol 303 (2) ◽  
pp. e339-e341 ◽  
Author(s):  
T.L. Phan ◽  
N.D. Tho ◽  
L.V. Bau ◽  
N.X. Phuc ◽  
S.C. Yu
Keyword(s):  
Esr Spectra ◽  
Lanthanum Manganite ◽  
A Site ◽  
Manganite Perovskites

A -site ordered quadruple perovskite oxides

2016 ◽  
Vol 25 (7) ◽  
pp. 078108 ◽  
Author(s):  
Youwen Long
Keyword(s):  
Perovskite Oxides ◽  
A Site

Structural Rearrangement in LSM Perovskites for Enhanced Syngas Production via Solar Thermochemical Redox Cycles

ACS Catalysis ◽  
2020 ◽  
Vol 10 (15) ◽  
pp. 8263-8276
Author(s):  
Asim Riaz ◽  
Takuya Tsuzuki ◽  
Felipe Kremer ◽  
Suchinda Sattayaporn ◽  
Muhammad Umair Ali ◽  
...  
Keyword(s):  
Structural Rearrangement ◽  
Syngas Production ◽  
Redox Cycles ◽  
Solar Thermochemical

scholarly journals An A- and B-Site Substitutional Study of SrFeO3−δ Perovskites for Solar Thermochemical Air Separation

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5123
Author(s):  
Tyler P. Farr ◽  
Nhu Pailes Nguyen ◽  
H. Evan Bush ◽  
Andrea Ambrosini ◽  
Peter G. Loutzenhiser
Keyword(s):  
Pechini Method ◽  
Thermal Reduction ◽  
Air Separation ◽  
Solar Irradiation ◽  
X Ray ◽  
Modified Pechini Method ◽  
Solar Thermochemical ◽  
Pressure Swing ◽  
A Site

An A‑ and B‑site substitutional study of SrFeO3−δ perovskites (A’xA1−xB’yB1−yO3−δ, where A = Sr and B = Fe) was performed for a two‑step solar thermochemical air separation cycle. The cycle steps encompass (1) the thermal reduction of A’xSr1−xB’yFe1−yO3−δ driven by concentrated solar irradiation and (2) the oxidation of A’xSr1−xB’yFe1−yO3−δ in air to remove O2, leaving N2. The oxidized A’xSr1−xB’yFe1−yO3−δ is recycled back to the first step to complete the cycle, resulting in the separation of N2 from air and concentrated solar irradiation. A-site substitution fractions between 0 ≤ x ≤ 0.2 were examined for A’ = Ba, Ca, and La. B-site substitution fractions between 0 ≤ y ≤ 0.2 were examined for B’ = Cr, Cu, Co, and Mn. Samples were prepared with a modified Pechini method and characterized with X-ray diffractometry. The mass changes and deviations from stoichiometry were evaluated with thermogravimetry in three screenings with temperature- and O2 pressure-swings between 573 and 1473 K and 20% O2/Ar and 100% Ar at 1 bar, respectively. A’ = Ba or La and B’ = Co resulted in the most improved redox capacities amongst temperature- and O2 pressure-swing experiments.

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