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1. A Non-Volatile Threshold Sensing System Using a Ferroelectric Hf 0.5 Zr 0.5 O 2 Device and a LiNbO 3 Microacoustic Resonator

   https://doi.org/10.1109/MEMS49605.2023.10052395  

   Kaya, Onurcan ; Colombo, Luca ; Davaji, Benyamin ; Cassella, Cristian ( January 2023 , 2023 IEEE 36th International Conference on Micro Electro Mechanical Systems (MEMS))
2. Structure Effect on Pseudocapacitive Properties of A 2 LaMn 2 O 7 (A = Ca, Sr)

   https://doi.org/10.1002/ente.202201249  

   Kananke-Gamage, Chandana C. W. ; Ramezanipour, Farshid ( January 2023 , Energy Technology)

   Herein, the effect of structure on pseudocapacitive properties in alkaline conditions is demonstrated through the investigation of isoelectronic oxides Ca₂LaMn₂O₇and Sr₂LaMn₂O₇, where the difference in ionic radii of Ca²⁺and Sr²⁺leads to a change in structure and lattice symmetry, resulting in an orthorhombicCmcmstructure for the former and a tetragonalI4/mmmstructure for the latter. While calcium and strontium do not make a direct contribution to the near‐surface faradaic processes that are essential to the pseudocapacitive properties, their effect on the structure leads to a change in the oxygen intercalation process and the associated pseudocapacitive energy storage. It is shown that Sr₂LaMn₂O₇has a significantly greater specific capacitance than Ca₂LaMn₂O₇. In addition, the former shows a considerably higher‐energy density compared to the latter. Furthermore, these materials show highly stable energy‐storage properties, and retain their specific capacitance over 10 000 cycles of charge–discharge in a symmetric pseudocapacitive cell. Importantly, these findings show the structure–property relationships, where a change in the structure and lattice symmetry can result in a significant change in pseudocapacitive charge–discharge properties in isoelectronic systems.

    

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3. Tl 2 Ir 2 O 7 : A Pauli Paramagnetic Metal, Proximal to a Metal Insulator Transition

   https://doi.org/10.1021/acs.inorgchem.0c03124  

   Feng, Hai L. ; Kang, Chang-Jong ; Deng, Zheng ; Croft, Mark ; Liu, Sizhan ; Tyson, Trevor A. ; Lapidus, Saul H. ; Frank, Corey E. ; Shi, Youguo ; Jin, Changqing ; et al ( April 2021 , Inorganic Chemistry)

   null (Ed.)
4. Dielectric properties of disordered A 6 B 2 O 17 (A = Zr; B = Nb, Ta) phases

   https://doi.org/10.1111/jace.19966  

   Spurling, R Jackson ; Almishal, Saeed_S I ; Casamento, Joseph ; Hayden, John ; Spangler, Ryan ; Marakovits, Michael ; Hossain, Arafat ; Lanagan, Michael ; Maria, Jon‐Paul ( October 2024 , Journal of the American Ceramic Society)

   We report on the structure and dielectric properties of ternary A₆B₂O₁₇(A = Zr; B = Nb, Ta) thin films and ceramics. Thin films are produced via sputter deposition from dense, phase‐homogenous bulk ceramic targets, which are synthesized through a reactive sintering process at 1500°C. Crystal structure, microstructure, chemistry, and dielectric properties are characterized by X‐ray diffraction and reflectivity, atomic force microscopy, X‐ray photoelectron spectroscopy, and capacitance analysis, respectively. We observe relative permittivities approaching 60 and loss tangents <1 × 10⁻²across the 10³–10⁵ Hz frequency range in the Zr₆Nb₂O₁₇and Zr₆Ta₂O₁₇phases. These observations create an opportunity space for this novel class of disordered oxide electroceramics.

    

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5. A Na 3 V 2 (PO 4 ) 2 O 1.6 F 1.4 Cathode of Zn‐Ion Battery Enabled by a Water‐in‐Bisalt Electrolyte

   https://doi.org/10.1002/adfm.202003511  

   Ni, Qiao ; Jiang, Heng ; Sandstrom, Sean ; Bai, Ying ; Ren, Haixia ; Wu, Xianyong ; Guo, Qiubo ; Yu, Dongxu ; Wu, Chuan ; Ji, Xiulei ( July 2020 , Advanced Functional Materials)

   Aqueous zinc‐ion batteries are receiving increasing attention; however, the development of high‐voltage cathodes is limited by the narrow voltage window of conventional aqueous electrolytes. Herein, it is reported that Na₃V₂(PO₄)₂O_1.6F_1.4exhibits the excellent performance, optimal to date, among polyanion cathode materials in a novel neutral water‐in‐bisalts electrolyte of 25 m ZnCl₂+ 5 m NH₄Cl. It delivers a reversible capacity of 155 mAh g⁻¹at 50 mA g⁻¹, a high average operating potential of ≈1.46 V, and stable cyclability of 7000 cycles at 2 A g⁻¹.

    

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