Advances in Electronic Ceramics, 2nd Edition

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Precision Acousto-Optic Instrument Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
Interests: ferroelectric; piezoelectric; dielectric; electroceramics; MLCC; LTCC
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Department of Physics, Garden Campus, Abdul Wali Khan University Mardan, Mardan 23200, KP, Pakistan
Interests: microwave dielectrics; capacitors; thermoelectrics; energy storage; energy harvesting; electromagnetic wave absorption
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School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
Interests: thermoelectrics; electrical conductivity; ferroelectrics; capacitors
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College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China
Interests: ferroelectric; piezoelectric; capacitors

Special Issue Information

Dear Colleagues,

Building upon the groundbreaking research and innovations presented in the first edition, we are delighted to announce second edition of this Special Issue, in which we will be continuing our exploration of the advances in electronic ceramics.

Electronic ceramics are characterized by their unique properties, making them indispensable in various applications, including integrated circuits, microwave communication, packaging ceramics, energy storage, energy generation, and optoelectronics. In recent years, electronic ceramics have undergone significant developments driven by the increasing demands of modern technology.

These advances have profoundly impacted various industries, as electronic ceramics have become fundamental components of a wide range of electronic devices.

These advancements are underpinned by a comprehensive understanding of the relationship between processing, structure, microstructure, and properties. By intentionally introducing dopants into pristine materials, researchers can precisely manipulate the band structure of electronic ceramics, enabling fine-tuned control and customization of their properties. To further foster the growth of electronic ceramics and address current and future challenges in the field, a Special Issue titled "Advances in Electronic Ceramics" has been launched. This dedicated platform focuses on topics such as synthesis procedures, crystal structures, and the functional characteristics of electronic ceramics. It aims to facilitate the progression of electronic ceramics and their pivotal role in the ever-evolving landscape of technology.

Prof. Dr. Dawei Wang
Dr. Raz Muhammad
Dr. Zhilun Lu
Dr. Fangfang Zeng
Guest Editors

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Keywords

  • powder synthesis
  • ceramic processing
  • electronic ceramics
  • piezoelectric ceramics
  • ferroelectric ceramics
  • dielectric ceramics
  • thermoelectric ceramics
  • multiferroic ceramics
  • ceramics for energy storage
  • ceramics for energy harvesting

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Related Special Issue

Published Papers (2 papers)

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Research

19 pages, 6066 KiB  
Article
Pseudocapacitive Behavior of Protonic Niobate Nanowires in Aqueous Acidic Electrolyte
by Adilar Gonçalves dos Santos Júnior, Jessica Gotardi, Edna Jerusa Pacheco Sampaio, Cristiano Campos Araújo, Gabriel Luiz Rasch, Antonio Marcos Helgueira de Andrade, Roberto Hübler, Andrés Cuña Suárez and Célia de Fraga Malfatti
Ceramics 2025, 8(2), 59; https://doi.org/10.3390/ceramics8020059 - 20 May 2025
Viewed by 64
Abstract
Niobium-based oxides are being increasingly evaluated as materials for energy storage applications. Additionally, the use of these oxides as cathodes in aqueous electrolytes has shown promise. Based on this, the pseudocapacitive behavior of protonic niobate nanowires in an aqueous acidic electrolyte (1 M [...] Read more.
Niobium-based oxides are being increasingly evaluated as materials for energy storage applications. Additionally, the use of these oxides as cathodes in aqueous electrolytes has shown promise. Based on this, the pseudocapacitive behavior of protonic niobate nanowires in an aqueous acidic electrolyte (1 M H2SO4) was evaluated for the first time. The material was obtained in two simple sequential steps. First, hydrothermal synthesis resulted in sodium niobate; second was ionic exchange (in two concentrations of 2 M and 0.1 M HNO3), where the protonic niobate was obtained. The resulting protonic niobate was characterized by FEG-SEM, the results demonstrated that the morphology of the oxide was concentration-dependent in the ionic exchange step, and EDS analysis was used to validate the procedure. Using DRX, Raman spectroscopy, and FTIR analysis, the transformation of sodium niobate to protonic niobate was evidenced. The electrochemical tests demonstrated that the protonic niobate presented pseudocapacitive behavior when employed as the cathode in 1 M H2SO4, and the ionic exchange in 2 M HNO3 promoted a better specific capacitance, reaching 119.8 mF·cm−2 at a 1 mA·cm−2 current density. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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17 pages, 5229 KiB  
Article
CuNb2O6 Particles Obtained via Solid-State Reaction and Application as Electrocatalyst for Oxygen Evolution Reaction
by Kívia F. G. de Araújo, Cleber S. Lourenço, Vitor M. S. F. Souza, Matheus D. da Silva, Gabriel D. S. Vasconcelos, Maria J. S. Lima, Jakeline R. D. Santos, Kelly C. Gomes, Francisco J. A. Loureiro, Marco A. Morales and Uílame U. Gomes
Ceramics 2025, 8(2), 55; https://doi.org/10.3390/ceramics8020055 - 13 May 2025
Viewed by 259
Abstract
Copper niobate (CuNb2O6) is an important compound due to its low cost and polymorphism, presenting monoclinic and orthorhombic phases, which leads to unique physical–chemical properties. The electrochemical performance of efficient electrocatalysts for the oxygen evolution reaction (OER) is of [...] Read more.
Copper niobate (CuNb2O6) is an important compound due to its low cost and polymorphism, presenting monoclinic and orthorhombic phases, which leads to unique physical–chemical properties. The electrochemical performance of efficient electrocatalysts for the oxygen evolution reaction (OER) is of importance in order to produce hydrogen gas from water. In this context, this work reports the synthesis of CuNb2O6 particles by high-energy milling for 5 and 10 h, and subsequent thermal treatment at 900 °C for 3 h. The samples were characterized by XRD, XRF, FESEM, RAMAN, UV–Vis, and FT-IR techniques, and were applied as electrocatalysts for the OER. The samples had both monoclinic and orthorhombic crystalline phases. The band gaps were in the range of 1.92 to 2.06 eV. In the application for the OER, the particles obtained by 5 and 10 h of milling exhibited overpotentials of 476 and 347 mV vs. RHE at 10 mA cm−2, respectively. In chronopotentiometry experiments for 15 h, the samples exhibited excellent chemical stability. The electrochemical performance of the sample milled for 10 h showed superior performance (347 mV vs. RHE) when compared with electrocatalysts of the same type, demonstrating that the methodology used to synthesize the samples is promising for energy applications. Full article
(This article belongs to the Special Issue Advances in Electronic Ceramics, 2nd Edition)
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