Research progress on quadruple perovskite oxides

Ding, Jie; Zhu, Xinhua

doi:10.1039/d4tc01467g

J. Mater. Chem. C

2024

DOI: 10.1039/d4tc01467g

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Research progress on quadruple perovskite oxides

Jie Ding,

Xinhua Zhu

Abstract: Recently, the remarkable physical characteristics of AA3B4O12 quadruple perovskite oxides, including their enormous magnetoresistance, gigantic dielectric constants, charge/orbital/magnetic orderings, spin-induced ferroelectricity, and ferrimagnetic half-metallicity, have drawn much attention. Nowadays, a...

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Cited by 2 publications

References 266 publications

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Screening A-site ordered quadruple perovskites for alkaline hydrogen evolution reaction via unifying electronic configuration descriptor

Sun 孙,

Li 李,

Qin 秦

et al. 2024

Chinese Phys. B

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Dynamic adsorption processes of reaction intermediates for alkaline hydrogen evolution (HER) catalysts are still confusing to understand. Here, we report a series of A-site ordered quadruple perovskite ruthenium-based electrocatalysts ACu3Ru4O12 (A = Na, Ca, Nd, and La), with the target sample SrCu3Ru4O12 exhibiting a very low overpotential (46 mV @10mA cm-2) and excellent catalytic stability with little decays after 48 h durability test. Precise tuning A-site cations can change the average valence state of Cu and Ru, thus the plot of HER activity versus the average Ru valence number shows a volcano-type relationship. Density functional theory indicates that the Ru 4d orbitals of SrCu3Ru4O12 possesses the most suitable d-band center position among the five samples, which might be the key parameter to determine the catalytic performance. Our work provides further insight into the discovering advanced, efficient hydrogen evolution catalysts through designing precise descriptor.

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Screening A-site ordered quadruple perovskites for alkaline hydrogen evolution reaction via unifying electronic configuration descriptor

Sun 孙,

Li 李,

Qin 秦

et al. 2024

Chinese Phys. B

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B-Site-Ordered and Disordered Structures in A-Site-Ordered Quadruple Perovskites RMn3Ni2Mn2O12 with R = Nd, Sm, Gd, and Dy

Belik,

Liu,

Tanaka

et al. 2024

Molecules

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ABO3 perovskite materials with small cations at the A site, especially with ordered cation arrangements, have attracted a lot of interest because they show unusual physical properties and deviations from general perovskite tendencies. In this work, A-site-ordered quadruple perovskites, RMn3Ni2Mn2O12 with R = Nd, Sm, Gd, and Dy, were synthesized by a high-pressure, high-temperature method at about 6 GPa. Annealing at about 1500 K produced samples with additional (partial) B-site ordering of Ni2+ and Mn4+ cations, crystallizing in space group Pn–3. Annealing at about 1700 K produced samples with disordering of Ni2+ and Mn4+ cations, crystallizing in space group Im–3. However, magnetic properties were nearly identical for the Pn–3 and Im–3 modifications in comparison with ferromagnetic double perovskites R2NiMnO6, where the degree of Ni2+ and Mn4+ ordering has significant effects on magnetic properties. In RMn3Ni2Mn2O12, one magnetic transition was found at 26 K (for R = Nd), 23 K (for R = Sm), and 22 K (for R = Gd), and two transitions were found at 10 K and 36 K for R = Dy. Curie–Weiss temperatures were close to zero in all compounds, suggesting that antiferromagnetic and ferromagnetic interactions are of the same magnitude.

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Research progress on quadruple perovskite oxides

Cited by 2 publications

References 266 publications

Screening A-site ordered quadruple perovskites for alkaline hydrogen evolution reaction via unifying electronic configuration descriptor

Screening A-site ordered quadruple perovskites for alkaline hydrogen evolution reaction via unifying electronic configuration descriptor

B-Site-Ordered and Disordered Structures in A-Site-Ordered Quadruple Perovskites RMn3Ni2Mn2O12 with R = Nd, Sm, Gd, and Dy

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