Article
Chemistry, Analytical
Fangming Chen, Qiaoyu Yang, MingRui Jiang, Yao Meng, Jian Wang
Summary: This study proposes a simple device that combines light-addressable potentiometric sensor (LAPS) imaging and microelectrodes for label-free sensing and imaging of electrochemical reactions. The device allows qualitative and quantitative observation and visualization of electrochemical reactions occurring on the microelectrodes.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Physical
Iraida N. Demchenko, Kostiantyn Nikiforow, Maryna Chernyshova, Yevgen Melikhov, Yevgen Syryanyy, Nadiia Korsunska, Larysa Khomenkova, Yehor Brodnikovskyi, Dmytro Brodnikovskyi
Summary: This work investigates the electronic structure modification of scandia-ceria stabilized zirconia (10Sc1CeSZ) ceramics sintered at different temperatures. Through XRD, SEM, impedance spectroscopy, and XPS analysis, it was found that the increase in sintering temperature led to higher grain ionic conductivity, accompanied by reduced porosity, increased grain size, and a shift from rhombohedral to cubic phase. XPS also revealed a surface modification in the ceramic, with the lower sintering temperature showing more Zr-OH bonds.
Article
Electrochemistry
Hongqian Sun, Yunpeng Li, Zhiyu Zhang, Jing Song, Liangliang Tian, Zhenqian Cheng, Mingjun Zhou, Tao Qi
Summary: This study developed a NO2 gas sensor based on yttrium-stabilized zirconia (YSZ) using a hard-template method and evaporation self-assembly technology. The sensor showed efficient gas-sensing performance due to the use of a nickel oxide sensing electrode and a three-dimensional ordered macroporous (3DOM) structure as the three-phase boundary. By changing the three-phase reaction boundary, the sensitivity of the sensor was significantly improved, with a response value 1.91 times higher than that of the untreated YSZ-based sensor at 450 degrees C and 100 ppm NO2. The 3D-ordered structure also exhibited good selectivity and long-term stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
E. Pikalova, N. Bogdanovich, A. Kolchugin, L. Ermakova, A. Khrustov, A. Farlenkov, D. Bronin
Summary: The methods to increase electrochemical activity and stability of air electrodes based on LNF and SDC have been developed. The optimized electrodes exhibit good electrode performance and low degradation rate, maintaining a low polarization resistance level even after long-term testing.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Analytical
Jiali Zhai, Yaqun Zhang, Dongmei Zhao, Lijuan Kou, Guangtao Zhao
Summary: An all-solid-state ion-selective microelectrode (IS mu E) was developed using acupuncture needles as the base, allowing for in vivo monitoring of calcium ion concentration changes in rat cerebrospinal fluid after spinal cord injury.
ANALYTICA CHIMICA ACTA
(2022)
Article
Materials Science, Ceramics
Zongqiang Cao, Qiong Gao, Mincong Zhou, Xu Li, Qingji Wang
Summary: In this study, a mixed potential gas sensor based on YSZ solid electrolyte and LaNiTiO3 sensing electrode was developed. The sensor exhibited high sensitivity to low-level concentration of SO2, and demonstrated good selectivity, repeatability, and stability.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Scott R. Burge, Kiril D. Hristovski, Russell G. Burge, Daniel Saboe, David A. Hoffman, Steven S. Koenigsberg
Summary: This study demonstrates a novel technology for monitoring changes in electrical potential of unsaturated soils using biofilm-populated electrodes. Using biofilm-populated electrodes as references in stable environments can successfully assess and monitor the electrochemical potential generated by plants and microorganisms. The findings suggest that long-term and real-time measurements of open-circuit potential in unsaturated soils are possible.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Keke Hu, Emily Relton, Nicolas Locker, Nhu T. N. Phan, Andrew G. Ewing
Summary: SGs encapsulate ROS, predominantly H2O2, and may act as communicators of cellular stress, regulating cellular metabolism and stress responses to provide cytoprotection in pathological conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Ceramics
Bo -Ram Won, Yo Han Kim, Seungyeon Jo, Jae -ha Myung
Summary: This study reports a phase-controlled, bendable, ultra-thin 3YSZ electrolyte with high flexural strength and improved ohmic resistance. The highest cell performance among reported flexible SOFCs is achieved using conventional electrodes, with a maximum power density of 0.86 W cm(-2) at 900 degrees C. This study provides a framework for developing flexible SOFCs as next-generation power sources for mobile devices with high volumetric power.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Analytical
Regina Belugina, Elena Puchkova, Ekaterina Yuskina, Arsen Khalatov, Vladimir Podberezskiy, Sergey Savinov, Andrey Legin, Vitaly Panchuk, Dmitry Kirsanov
Summary: This paper presents a potentiometric multisensor measurement method that eliminates the need for a reference electrode by using cross-voltages for chemometric processing of data. Experimental results show that this method achieves at least the same accuracy as the traditional approach, and in some cases, it improves accuracy by two times, demonstrating the potential of the proposed measuring protocol.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Biochemistry & Molecular Biology
Dmitrii Agarkov, Mikhail Borik, Boris Komarov, Galina Korableva, Alexey Kulebyakin, Irina Kuritsyna, Elena Lomonova, Filipp Milovich, Valentina Myzina, Nataliya Tabachkova
Summary: The crystal structure and conductivity of (ZrO2)(0.90)(Sc2O3)(0.09)(Yb2O3)(0.01) and (ZrO2)(0.90)(Sc2O3)(0.08)(Yb2O3)(0.02) single-crystal membranes were studied after high-temperature aging. The study is important for the performance of solid oxide fuel cells (SOFCs). The conductivity stability and phase transformation were observed, demonstrating a correlation between conductivity and phase composition. The (ZrO2)(0.90)(Sc2O3)(0.09)(Yb2O3)(0.01) composition was identified as a promising material for practical use in SOFCs.
Article
Biochemistry & Molecular Biology
Dmitrii Agarkov, Mikhail Borik, Galina Korableva, Alexey Kulebyakin, Irina Kuritsyna, Nataliya Larina, Elena Lomonova, Filipp Milovich, Valentina Myzina, Polina Ryabochkina, Nataliya Tabachkova, Tatyana Volkova, Denis Zakharov
Summary: The effect of long-term high-temperature annealing on the phase composition, local crystal structure, and oxygen-ion conductivity of SOFC membranes based on zirconium dioxide solid solutions was investigated. Crystals with different rare earth cations were obtained and their conductivity was analyzed. It was found that the conductivity of the crystals decreased with an increase in the ionic radius of the rare earth cation. The high-temperature degradation of conductivity was also discussed.
Article
Biochemistry & Molecular Biology
Dmitrii Agarkov, Mikhail Borik, Ekaterina Buzaeva, Galina Korableva, Alexey Kulebyakin, Irina Kuritsyna, Nataliya Larina, Vladimir Kyashkin, Elena Lomonova, Filipp Milovich, Valentina Myzina, Polina Ryabochkina, Nataliya Tabachkova, Denis Zakharov
Summary: This paper presents the results of studying the phase composition, luminescent characteristics, and ionic conductivity of ceramic scandium-stabilized solid solutions of zirconium dioxide containing 9 and 10 mol% Sc2O3. The ceramic samples were prepared by sintering powders obtained by grinding melted solid solutions of the same composition. A comparative analysis with similar characteristics of single crystals was conducted, and differences in the phase composition of ceramics and initial single crystals were found. The effect of grain boundary structure and properties on the ionic conductivity of ceramic samples was discussed, showing that the differences in ionic conductivity are mainly due to changes in structure and phase composition.
Article
Biotechnology & Applied Microbiology
Jiali Zhai, Wenting Wang, Shuang Wu, Tianxi Yu, Chongjun Xiang, Yue Li, Chunhua Lin, Guangtao Zhao
Summary: In addition to various cellular processes, Ca2+ also plays a role in tumor initiation, progression, angiogenesis, and metastasis. A new all-solid-state calcium ion-selective microelectrode (Ca2+-IS mu E) based on carbon fiber modified with PEDOT (PSS) as a solid-contact was developed in this study. The Ca2+-IS mu E showed a stable Nernstian response in CaCl2 solutions and can be used for in vivo calcium monitoring of a single renal carcinoma cell.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Jung-Chuan Chou, Kun-Tse Lee, Po-Hui Yang, Po-Yu Kuo, Yu-Hsun Nien, Chih-Hsien Lai, Ying-Sheng Chang
Summary: We developed a potentiometric nonenzymatic ascorbic acid (AA) sensor using molybdenum trioxide (MoO3) film and copper oxide nanoparticles (CuO NPs) as the main sensing materials. The sensors and sensing materials were fabricated using screen printing technique, radio frequency sputtering system, and green synthesis method. We examined the average sensitivity, linearity, and interference effects of the AA sensor under static measurements, and performed experiments using a microfluidic system to analyze the best sensing characteristic under dynamic measurements. The AA sensor achieved better stability and accuracy with the help of a unity-gain frequency and low power consumption instrumentation amplifier (UGFPCIA).
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Chemistry, Multidisciplinary
Guillaume Gouget, Fabrice Mauvy, U-Chan Chung, Sebastien Fourcade, Mathieu Duttine, Marc-David Braida, Thierry Le Mercier, Alain Demourgues
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Materials Science, Ceramics
Louise Sevin, Volatiana Razafindramanana, Aurelie Julian-Jankowiak, Jean-Francois Justin, Fabrice Mauvy, F. Rebillat
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Physical
Giulio Cordaro, Aurelien Flura, Alessandro Donazzi, Renato Pelosato, Fabrice Mauvy, Cinzia Cristiani, Giovanni Dotelli, Jean-Claude Grenier
SOLID STATE IONICS
(2020)
Article
Energy & Fuels
Giovanni Carollo, Alberto Garbujo, Fabrice Mauvy, Antonella Glisenti
Article
Chemistry, Inorganic & Nuclear
R. Essalim, A. Ammar, M. Zamama, F. Mauvy
JOURNAL OF SOLID STATE CHEMISTRY
(2020)
Article
Chemistry, Applied
Vaibhav Vibhu, Aurelien Flura, Aline Rougier, Clement Nicollet, Sebastien Fourcade, Teresa Hungria, Jean-Claude Grenier, Jean-Marc Bassat
JOURNAL OF ENERGY CHEMISTRY
(2020)
Article
Chemistry, Physical
L. Castro, E. Petit, A. Benayad, F. Mauvy, B. Pecquenard, F. Le Cras, C. Barchasz
SOLID STATE IONICS
(2020)
Article
Materials Science, Ceramics
L. Guesnet, J. M. Bassat, J. C. Grenier, T. Chartier, P-M Geffroy
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Inorganic & Nuclear
Khalifa Souiwa, Eric Lebraud, Marion Gayot, Francois Weill, Fabrice Mauvy, Maxim Avdeev, Radhouane Chtourou, Mourad Hidouri, Olivier Toulemonde
Summary: The study reports on the structural characteristics of a new synthesized copper/chromium phosphate crystal, and investigates the oxidation states of copper and chromium, as well as their effects on the crystal phase transition.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
M. Legree, V Charbonnier, S. Al Bacha, K. Asano, K. Sakaki, I Aubert, F. Mauvy, J-L Bobet
Summary: In this study, the hydrogen generation performance of LPSO compounds and LPSO + Mg alloys in simulated seawater solution was investigated. Results showed that LPSO compounds, especially the single phase LPSO Mg(87.6N)i(5.5)Y(6.9), exhibited improved H2 generation features compared to pure Mg. Alloys containing both Mg and LPSO benefited from galvanic coupling between the two phases, leading to higher reactivity and lower activation energies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
E. Bonnet, J. C. Grenier, J. M. Bassat, A. Jacob, B. Delatouche, S. Bourdais
Summary: This study investigates the impact of high entropy on the anionic conductivity of oxides by designing and preparing multi-cation oxides with fluorite-type structures. The experimental results show that the ionic conductivity of the newly designed compositions is slightly improved compared to previous data, but still lower than expected.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Thomas Herisson de Beauvoir, Zakaria Ghomari, Geoffroy Chevallier, Andreas Flaureau, Alicia Weibel, Catherine Elissalde, Fabrice Mauvy, Rachman Chaim, Claude Estournes
Summary: Yttria stabilized zirconia ceramics prepared by Flash-SPS exhibit rapid densification and high hardness, providing new opportunities for the fabrication of porous lightweight ceramics with good mechanical properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Electrochemistry
L. Guesnet, E. Bonnet, J. -m. Heintz, E. Chadourne, J. -c. Grenier, T. Chartier, P. -m. Geffroy, J. -m. Bassat
Summary: This study successfully sintered Pr6O11, a recently developed promising oxygen electrode for Solid Oxide Cells (SOCs). Dense pellets or thin films were used to accurately measure the ionic transport properties via the isotopic oxygen exchange method. Dilatometry experiments and sintering tests with different thermal cycles resulted in overcoming phase changes and achieving a sintered relative density of 95% for Pr6O11. The ionic transport properties of Pr6O11 were determined through Isotopic Exchange Depth Profiling (IEDP) measurements in the temperature range of 400 < T degrees C < 800.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
L. Guesnet, G. Aubert, S. Hubert, P. M. Geffroy, C. Aymonier, J. M. Bassat
Summary: This study presents an original method for shaping composite solid oxide fuel cell (SOFC) anodes using nickel or copper as metal. It compares the traditional infiltration method with the supercritical infiltration method and explains how the latter can improve the electrochemical performance of the cells.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Jia Song, De Ning, Bernard Boukamp, Jean-Marc Bassat, Henny J. M. Bouwmeester
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
