Paper
Nanoscale percolation in doped BaZrO3 for high proton mobility
Published Dec 23, 2019 · Fabian M. Draber, C. Ader, J. Arnold
Nature Materials
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69
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0
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Abstract
Abstract hidden due to publisher request; this does not indicate any issues with the research. Click the full text link above to read the abstract and view the original source.
Rigorous JournalStudy Snapshot
Acceptor-doped barium zirconate increases proton mobility and conductivity, making it a promising conductor for electrolysers and fuel cells, with potential for other oxides.
PopulationOlder adults (50-71 years)
Sample size24
MethodsObservational
OutcomesBody Mass Index projections
ResultsSocial networks mitigate obesity in older groups.
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References
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Protons preferentially migrate along a three-dimensional network of Y dopants in highly doped BaZrO3, reducing the strong trapping effect of dense dopants and enhancing proton diffusivity and mobility.
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Sc-doped BaZrO3 shows promising protonic conductivity, but lower conductivities compared to its Y-doped counterpart due to strong proton bonding to Sc clusters and higher energies of Zr-OH-Zr configurations.
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A protonic membrane reformer can produce high-purity hydrogen from steam methane reforming in a single-stage process with near-zero energy loss, potentially becoming a competitive alternative for industrial-scale hydrogen plants integrating CO2 capture.
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Citations
Protons in (Ga,Sc,In,Y)3+-doped BaFeO3 triple conductors — Site energies and migration barriers investigated by density functional theory calculations
Smaller dopants, rather than oversized Y 3+, are recommended for long-range proton transport in BaFeO 3- perovskites due to a proton-repulsive first shell and increased proton barriers.
2025·0citations·A. Chesnokov et al.·Solid State Ionics
Solid State Ionics
Emerging computational and machine learning methodologies for proton-conducting oxides: materials discovery and fundamental understanding
Computational and machine learning methodologies have helped discover three new proton-conducting oxides and provided new insights into their properties and behavior.
2024·1citation·S. Fujii et al.·Science and Technology of Advanced Materials
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Unveiling Negative Differential Resistance and Superionic Conductivity: Water Anchored on Layered Materials.
Negative differential resistance in 2D TMD devices is attributed to the bonding of water molecules to sulfur defect sites, enabling superionic in-plane protonic conduction.
2024·0citations·Litty Thomas Manamel et al.·The journal of physical chemistry letters
The journal of physical chemistry letters
Breaking Barriers: Novel Approaches to Proton-Conducting Oxide Materials
Proton-conducting oxides show promise for revolutionizing electrochemical energy technologies, but challenges like electrode adhesion and cost-effective fabrication methods need to be addressed for widespread adoption.
2024·4citations·Muhammad Tayyab et al.·Ceramics International
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Hydrogen in energy and information sciences
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