Reactive stability of promising scalable doped ceria materials for thermochemical two-step CO2 dissociation

2018 ◽  
Vol 6 (14) ◽  
pp. 5807-5816 ◽  
Author(s):  
R. Jacot ◽  
J. Madhusudhan Naik ◽  
R. Moré ◽  
R. Michalsky ◽  
A. Steinfeld ◽  
...  
Keyword(s):  
Exchange Capacity ◽  
Oxygen Exchange ◽  
Doped Ceria ◽  
Redox Cycles ◽  
Stable Oxygen

This work reports an improved and stable oxygen exchange capacity (OEC) of optimized doped ceria Ce1−xMxO2−δ (M = Zr, Hf, Nb) materials for two-step thermochemical CO2 splitting over 50 consecutive redox cycles (7 days).

Enhanced oxygen exchange capacity in nano-structured vanadia–ceria multi-phase oxygen carriers for solar thermal fuel production

2019 ◽  
Vol 7 (48) ◽  
pp. 27347-27360 ◽  
Author(s):  
Asim Riaz ◽  
Muhammad Umair Ali ◽  
Wojciech Lipiński ◽  
Adrian Lowe
Keyword(s):  
Solar Energy ◽  
Hydrocarbon Fuel ◽  
Exchange Capacity ◽  
Oxygen Exchange ◽  
Solar Thermal ◽  
Oxygen Carriers ◽  
Fuel Production ◽  
Crucial Step ◽  
Redox Cycles ◽  
Multi Phase

Developing an efficient redox material is a fundamental and crucial step in sustainable hydrocarbon fuel production via solar energy-driven thermochemical redox cycles.

scholarly journals Cyclic oxygen exchange capacity of Ce-doped V2O5 materials for syngas production via high-temperature thermochemical-looping reforming of methane

RSC Advances ◽  
2021 ◽  
Vol 11 (37) ◽  
pp. 23095-23104
Author(s):  
Asim Riaz ◽  
Wojciech Lipiński ◽  
Adrian Lowe
Keyword(s):  
High Temperature ◽  
Partial Oxidation ◽  
Exchange Capacity ◽  
Oxygen Exchange ◽  
High Oxygen ◽  
Methane Partial Oxidation ◽  
Syngas Production ◽  
Redox Pair ◽  
Cerium Doping ◽  
Fast Rates

Cerium doping into the V2O5 lattice forms a reversible V2O3/VO redox pair after sequential methane partial oxidation and CO2/H2O splitting reactions and produces syngas (H2, CO) with fast rates and high oxygen exchange capacity.

Flame-made nanocrystalline ceria/zirconia doped with alumina or silica: structural properties and enhanced oxygen exchange capacity

2003 ◽  
Vol 13 (12) ◽  
pp. 2979 ◽  
Author(s):  
Heiko Schulz ◽  
Wendelin J. Stark ◽  
Marek Maciejewski ◽  
Sotiris E. Pratsinis ◽  
Alfons Baiker
Keyword(s):  
Structural Properties ◽  
Exchange Capacity ◽  
Oxygen Exchange ◽  
Nanocrystalline Ceria

Ceria-based electrospun fibers for renewable fuel production via two-step thermal redox cycles for carbon dioxide splitting

2014 ◽  
Vol 16 (27) ◽  
pp. 14271-14280 ◽  
Author(s):  
William T. Gibbons ◽  
Luke J. Venstrom ◽  
Robert M. De Smith ◽  
Jane H. Davidson ◽  
Gregory S. Jackson
Keyword(s):  
Carbon Dioxide ◽  
Cost Effective ◽  
Electrospinning Process ◽  
Electrospun Fibers ◽  
Doped Ceria ◽  
Fuel Production ◽  
Resistant Material ◽  
Renewable Fuel ◽  
Redox Cycles ◽  
Carbon Dioxide Splitting

Zirconium-doped ceria (Ce1−xZrxO2) was synthesized through a controlled electrospinning process as a promising approach to cost-effective, sinter-resistant material structures for high-temperature, solar-driven thermochemical redox cycles.

scholarly journals Oxygen nonstoichiometry and thermodynamic characterization of Zr doped ceria in the 1573–1773 K temperature range

2015 ◽  
Vol 17 (12) ◽  
pp. 7813-7822 ◽  
Author(s):  
M. Takacs ◽  
J. R. Scheffe ◽  
A. Steinfeld
Keyword(s):  
Defect Chemistry ◽  
Oxygen Nonstoichiometry ◽  
Doped Ceria ◽  
Thermodynamic Characterization ◽  
Temperature Range ◽  
Redox Cycles ◽  
Solar Thermochemical

The thermodynamics and defect chemistry of Zr4+-doped ceria is investigated and discussed in regards to the efficiency of solar thermochemical redox cycles.

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