Journal Article10.1126/SCIENCE.AAM7092
Perovskites in catalysis and electrocatalysis
Jonathan Hwang,Reshma R. Rao,Livia Giordano,Livia Giordano,Yu Katayama,Yu Katayama,Yang Yu,Yang Shao-Horn +7 more
TL;DR: The perovskite oxide family is presented as a basis for developing such catalysts for (electro)chemical conversions spanning carbon, nitrogen, and oxygen chemistries and how these insights open experimental and computational opportunities to expand the compositional and chemical reaction space for next-generation perovkite catalysts.
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Abstract: Catalysts for chemical and electrochemical reactions underpin many aspects of modern technology and industry, from energy storage and conversion to toxic emissions abatement to chemical and materials synthesis. This role necessitates the design of highly active, stable, yet earth-abundant heterogeneous catalysts. In this Review, we present the perovskite oxide family as a basis for developing such catalysts for (electro)chemical conversions spanning carbon, nitrogen, and oxygen chemistries. A framework for rationalizing activity trends and guiding perovskite oxide catalyst design is described, followed by illustrations of how a robust understanding of perovskite electronic structure provides fundamental insights into activity, stability, and mechanism in oxygen electrocatalysis. We conclude by outlining how these insights open experimental and computational opportunities to expand the compositional and chemical reaction space for next-generation perovskite catalysts.
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Citations
Ammonia synthesis on BaTiO<sub>2.5</sub>H<sub>0.5</sub>: computational insights into the role of hydrides
01 Jan 2022
TL;DR: In this article , the role of lattice hydrides and surface vacancies in hydrogenation reactions over perovskite oxyhydrides was investigated, and it was shown that the subsurface hydride vacancy formed after reaction of *N2 with the lattice hydrate is key to the distal pathway, leading to surface nitride formation after breaking the *N-NH3 bond, while the neighboring surface Ti sites are key to bridging and stabilizing the *NNH intermediate in the alternating pathway.
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TL;DR: Researchers experimentally validate the Sabatier plot by customizing the microenvironment of cobalt porphyrin-based catalysts, demonstrating that electron-withdrawing substituents enhance catalytic efficiency by mitigating strong *OH intermediate adsorption and promoting charge migration kinetics.
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Magnetic Field-Enhanced Oxygen Evolution in YMn1–xCrxO3 (x = 0, 0.05, and 0.1) Perovskite Oxides
TL;DR: YMnCrO3 perovskite oxide nanostructures exhibit enhanced ferromagnetic exchange interaction and improved oxygen evolution reaction (OER) activity under a magnetic field, particularly with 10% Cr doping, suggesting a promising route for boosting catalytic efficiency in magnetic materials.
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First principal insights on mechanical, electronic and optical properties of direct bandgap material Cs2KScX6 (X=Cl, Br and I) for optoelectronic applications
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TL;DR: In this article , the structural, mechanical, electronic and optical properties of Cs2KScX6 (X = Cl, Br, and I) double perovskite material were investigated.
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A Porous Perovskite Nanofiber with Reinforced Aerophobicity for High-Performance Anion Exchange Membrane Water Splitting.
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