Article
Materials Science, Ceramics
Yazhou Kong, Youfang Liu, Guang Hu
Summary: A perovskite-structured sodium ion conductor, Na0.25La0.25NbO3 (NLNO), was developed and studied for its microstructure, phase structure, density, and sodium ionic conductivity. Higher sintering temperature leads to improved conductivity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Haoran Wang, Ze Lei, Weiwei Jiang, Xiang Xu, Junmeng Jing, Ziwei Zheng, Zhibin Yang, Suping Peng
Summary: Bismuth oxide and scandia co-doped zirconia powders were prepared via a citrate sol-gel method. The addition of Bi2O3 promoted the sintering process and increased the electrical conductivity of scandia stabilized zirconia. The resulting material exhibited high power density in electrolyte-supported cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Ken-ichi Okazaki, Hirofumi Nakamoto, Toshiro Yamanaka, Toshiharu Fukunaga, Zempachi Ogumi, Takeshi Abe
Summary: This study demonstrates the potential of fluoride shuttle batteries (FSB) with fluoride anions as carriers, highlighting their high capacity and energy density. By using bismuth (Bi) and lead (Pb) as positive and negative active materials and alkylammonium fluoride and an ionic liquid as the electrolyte solution, the specific fluorination/defluorination mechanisms at each electrode were examined using in situ electrochemical atomic force microscopy (EC-AFM). The research provides insights into the morphological changes and cycling performance of active materials in FSB.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Grazia Accardo, Ander Orue, Dimitrios Chatzogiannakis, Pawel Gluchowski, Montserrat Casas-Cabanas, Pedro Lopez-Aranguren
Summary: In this study, a two-step process to fabricate LLZO electrolytes with a high relative density under low temperature was proposed. The high-pressure low-temperature method was used to achieve high ionic conductivity, and the practical application was demonstrated through experiments on lithium stripping and plating. This research provides guidelines for controlling the microstructure of LLZO and contributes to the understanding of the correlations between microstructure and conductivity.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Ian A. Brummel, Kevin Wynne, William A. Lanford, Jon F. Ihlefeld
Summary: A combustion synthesis methodology was used to prepare perovskite Li3xLa1/3-xTaO3 lithium-ion conductors. Different lithium vapor overpressure conditions were achieved by sintering under different burial powder and cover crucible combinations. The ion conductivity was found to be influenced by the lithium content and secondary phase content in the samples.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Nataly Carolina Rosero-Navarro, Haruna Watanabe, Akira Miura, Kiyoharu Tadanaga
Summary: The study utilized solution-process-derived sintering additives for the densification of garnet-type solid ceramic electrolytes, achieving high relative density and properties at 1000 degrees Celsius. It was found that control of liquid phase formation during sintering is crucial, and specific additives were used to effectively enhance the material's performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Thomas Herisson de Beauvoir, Pierre-Louis Taberna, Patrice Simon, Claude Estournes
Summary: This paper presents the application of in situ impedance analysis in the Cold Sintering Process (CSP), specifically focusing on the influence of acetic acid on the sintering of ZnO and the resulting ceramics. The results demonstrate that this in situ characterization technique has the potential to be applied to a wide range of materials.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Chemical
Ruiqiang Yang, Yulong Yang, Yongqing Wang, Qibing Chang, Jianer Zhou
Summary: The high cost of ceramic membranes is caused by the high sintering temperatures. Choosing sintering aids can reduce the sintering temperature but results in low corrosion resistance. Using MgO-Al2O3-SiO2-ZrO2 ceramic glass as sintering aids increases the bending strength of alumina membrane, and MgAl2O4, Mg2SiO4, and ZrO2 crystals enhance its mechanical properties and corrosion resistance. The acid corrosion also promotes the permeability of the membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Chengcai Ye, Yunxia Zhao, Yanrui Li, Xing Zhao, Min Li, Jing Shi, Xiao Liu
Summary: This work investigates the influence of the preparation process on the structure and conduction mechanisms of Bi0.5Na0.5TiO3 (BNT)-based complexes. It is found that the ceramics prepared by tape-casting exhibit a rutile titanium dioxide phase, while the ceramics prepared by conventional solid-state reaction show a pure perovskite phase. The ac impedance spectra reveal different conductive behaviors in the two preparation routes. This study highlights the importance of the preparation route in the structure and conduction mechanisms of BNT-based oxide ionic conductive materials.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Wenhao Yu, Jiqing Lv, Feng Shi, Kaixin Song, Wen Lei, Huanfu Zhou, Ze-Ming Qi, Jing Wang
Summary: Sr(Mg1/2Mo1/2)O-3 (SMM) microwave dielectric ceramic was successfully prepared by solid-state sintering method, showing excellent dielectric properties. Analysis of Raman scattering and FTIR spectra revealed the vibration characteristics of the lattice, with stretching vibration of Mg/MoO6 having the greatest influence on dielectric properties in the SMM sample.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Jiahao Chen, Hong Zhang, Lin Yang, Hongzhu Chen, Junming Shao, Zhicheng Li
Summary: This study prepared Li29Zr9Nb3O40 ceramics with good ionic conductivity using a sol-gel method, and found that the oxygen vacancy has a significant impact on their performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yuan Cheng, Yutong Wu, Mingyue Mo, Xu Li, Lixu Xie, Hao Chen, Jie Xing, Zhi Tan, Jianguo Zhu
Summary: In this study, a simple method is presented to broaden the sintering temperature range of KNN-based ceramics by adding appropriate sintering aid Fe2O3, which decreases the sintering temperature sensitivity. The prepared ceramics exhibit a much wider sintering temperature range (-100 degrees C) compared to previous KNN-based ceramics (20-30 degrees C). The ceramics sintered at Ts = 1040 degrees C achieve optimal properties (d33 = 370 pC/N, d3*3 = 447 pm/V, kp = 0.47, TC = 323 degrees C). Impedance characterization shows the origin of enhanced electric and sintering properties is defect-dependent grain growth mechanism. This work provides a feasible and effective method for widening the sintering temperature and obtaining high piezoelectricity in KNN-based material system at the same time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Joao V. Campos, Isabela R. Lavagnini, Vinicius M. Zallocco, Lilian M. Jesus, Ana C. M. Rodrigues
Summary: Flash sinter-crystallization (FSC), derived from flash sintering, is explored as a processing method for producing Li1.3Al0.3Ti1.7(PO4)(3) (LATP) glass ceramics for the first time. FSC allows the production of LATP with NaSICON structure at a low temperature of 460°C and a short processing time of 5 min. FSC significantly improves the densification and total ionic conductivity of LATP glass ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Jasmine Thomas, P. K. Anitha, Tony Thomas, Nygil Thomas
Summary: BaZrO3 perovskite crystallites were synthesized in a single step using a calcination free room temperature co precipitation method. The material was used for the modification of a carbon paste electrode (CPE) to fabricate an advanced sensor with lower resistance and better charge transfer. The modified electrode showed high current sensitivity towards the detection of dopamine (DA), achieving a remarkable low detection limit of 5 pM.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Hamed Salimkhani, Lovro Fulanovic, Till Froemling
Summary: The demand for robust multilayer ceramic capacitors with high-temperature and high-power capabilities is increasing rapidly. However, cost-effective production is a challenge. This study investigates the use of Na0.5Bi0.5TiO3-based materials as promising lead-free options. By adding sintering aids, the sintering temperature of Na0.5Bi0.5TiO3-BaTiO3-CaZrO3-BiAlO3 solid solutions was successfully reduced to 975 degrees C, suitable for co-sintering with Cu electrodes without adverse effects on capacitor properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Chemistry, Physical
Grazia Accardo, Gianfranco Dell'Agli, Luca Spiridigliozzi, Sung Pil Yoon, Domenico Frattini
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Engineering, Chemical
Domenico Frattini, Grazia Accardo, Yongchai Kwon
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Chemistry, Physical
Domenico Frattini, Alessio Occhicone, Claudio Ferone, Raffaele Cioffi
Summary: This study investigated the temperature distribution and thermal performance of novel solid media for SHTES through finite element method (FEM) modeling. The results showed that localized reinforcement with fibers can increase thermal storage performance, and a Multi-Criteria Decision Making (MCDM) approach was used to select the most suitable material. More investigations are needed to optimize the coupling of fiber material and solid medium for high thermal performance and low environmental impacts.
Review
Engineering, Chemical
Domenico Frattini, Gopalu Karunakaran, Eun-Bum Cho, Yongchai Kwon
Summary: Studies focus on finding green synthesis routes and cheap sources for the most common nanoparticles used in microbial fuel cells (MFCs) and microbial electrolysis cells (MECs), in order to replace commercial nanoparticles; the detailed showcase of naturally occurring, recycled, and alternative raw materials for nanoparticle synthesis; cases of effectively utilizing naturally derived or sustainable nanoparticles in microbial devices demonstrate the value of this approach as a solid alternative.
Article
Chemistry, Physical
Grazia Accardo, Emilio Audasso, Sung Pil Yoon
Summary: Microstructural and electrochemical investigations were conducted on tri-doped cerium oxide with Gd, Li, and Bi. The combination of lithium and bismuth effectively reduced the sintering temperature. The doping-induced complex network of defects improved the ionic transport and increased the total conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Emilio Audasso, Kab In Kim, Grazia Accardo, Han Sung Kim, Sung Pil Yoon
Summary: Molten carbonate electrolysis cells have the potential to sustainably produce H2 or syngas as alternatives to fossil fuels, as well as sequester CO2. The performance of the cell is influenced by various factors such as operating temperature and fuel electrode gas composition. Understanding these factors can help improve electrolyte loss and increase CO2 capture rate.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Applied
Luca Spiridigliozzi, Mauro Bortolotti, Grazia Accardo, Alessandro Vergara, Domenico Frattini, Claudio Ferone, Raffaele Ciof, Gianfranco Dell'Agli
Summary: This study provides a complete structural characterization of rare earth carbonates and reveals their relationship with the tengerite-(Y) structure. The influence of different ionic radii of rare earth cations on lattice parameters is analyzed. In addition, structural features are validated through FT-IR and Raman spectra. The findings are important for understanding the structure and properties of rare earth carbonates.
JOURNAL OF RARE EARTHS
(2022)
Article
Electrochemistry
Aroa R. Mainar, J. Alberto Blazquez, Domenico Frattini, Marina Enterria, Nagore Ortiz-Vitoriano, Idoia Urdampilleta, Hans-Jurgen Grande
Summary: Secondary zinc-air batteries (ZABs) show potential as sustainable energy storage, but their current capability is unsatisfactory. The limitations are mainly due to the air electrodes, hindering practical applications and commercialization. This study explores the use of metallic nickel as a conductive additive in the air electrodes, compared to carbon nanotubes (CNT), and demonstrates that the density and interaction of the additive with the active material are crucial for achieving long cycle life. The use of Ni as a conductive agent significantly increased the cycle life of secondary ZABs, delivering more than 2,400 cycles compared to only 88 cycles for carbon-based batteries.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Estibaliz Garcia-Gaitan, Maria Carmen Morant-Minana, Domenico Frattini, Lorenza Maddalena, Alberto Fina, Claudio Gerbaldi, Igor Cantero, Nagore Ortiz-Vitoriano
Summary: This research presents a novel gel polymer electrolyte (GPE) based on pure agarose from seaweed, serving as a smart alternative to liquid and gel electrolytes, with excellent physicochemical and electrochemical properties. The agarose gel with 2 wt% agarose and 8 M KOH electrolyte exhibits outstanding ionic conductivity, water retention, and zinc utilization in primary and secondary zinc-air batteries. It shows high round-trip efficiency and improved cyclability under different cycling conditions, making it a potential benchmark for future GPE-based zinc-air batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Pedram Ghorbanzade, Arianna Pesce, Kerman Gomez, Grazia Accardo, Shanmukaraj Devaraj, Pedro Lopez-Aranguren, Juan Miguel Lopez del Amo
Summary: In this study, the chemical evolution and phase transitions of LLZO during heat treatment were investigated using solid state NMR, Raman, and XRD diffraction techniques. The results showed that the activation energy for Li jumps decreased after heat treatment, indicating improved Li dynamics. Furthermore, the pretreatment of powders was found to be an effective method for obtaining garnet-rich composite electrolytes with better flexibility and garnet-polymer interphases, enhancing the prospects of this material for processing.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
A. G. Sabato, M. Nunez Eroles, S. Anelli, C. D. Sierra, J. C. Gonzalez-Rosillo, M. Torrell, A. Pesce, G. Accardo, M. Casas-Cabanas, P. Lopez-Aranguren, A. Morata, A. Tarancon
Summary: Additive manufacturing techniques with advanced functional materials are gaining attention in the field of all solid-state lithium batteries (ASSBs) for their potential to produce cheaper, safer, and customizable batteries with high energy density. This study explores the use of stereolithography (SLA) to fabricate complex-shaped Li1.5Al0.5Ge1.5P3O12 (LAGP) full-ceramic electrolytes. The printed electrolytes demonstrated comparable ionic conductivity to conventionally fabricated LAGP. Additionally, 3D printed LAGP membranes with increased interfacial area showed reduced area specific resistance. Symmetrical cells with LAGP printed electrolytes coated with a germanium protective interlayer exhibited stable cycling performance. This innovative approach opens up new possibilities for manufacturing full ceramic electrolytes with complex shapes for the next generation of ASSBs based on LAGP.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Lorenzo Fallarino, Uzair Naveed Chishti, Arianna Pesce, Grazia Accardo, Amna Rafique, Montserrat Casas-Cabanas, Pedro Lopez-Aranguren
Summary: This study demonstrates the feasibility of designing nanoscale bilayers to enable the efficient cycling of lithium-free solid-state batteries, by effectively controlling Li deposition on LLZO without the need for extra external pressure.
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Domenico Frattini, Estibaliz Garcia Gaitan, Ainhoa Bustinza Murguialday, Michel Armand, Nagore Ortiz-Vitoriano
Summary: Primary zinc-air batteries currently face challenges in rechargeability and durability of the liquid electrolyte. Substituting the liquid electrolyte with solid or gelled electrolytes, using naturally occurring biopolymers, could be a potential solution. However, further research and assessment are needed to optimize the performance and evaluate the compatibility of these materials.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Pierre Ranque, Jakub Zagorski, Grazia Accardo, Ander Orue Mendizabal, Juan Miguel Lopez del Amo, Nicola Boaretto, Maria Martinez-Ibanez, Hugo Arrou-Vignod, Frederic Aguesse, Michel Armand, Shanmukaraj Devaraj
Summary: Solid-state batteries require efficient electrolytes, and ceramic-rich polymer electrolytes are a promising solution. Surface modification of LLZO is essential for preparing ceramic-rich electrolytes with improved performance.
