Article
Materials Science, Ceramics
Juan Luis Pantoja-Pertegal, Antonio Diaz-Parralejo, Antonio Macias-Garcia, J. Sanchez-Gonzalez, Eduardo M. Cuerda-Correa
Summary: This work focuses on the design, preparation, and characterization of YSZ coatings using the EPD technique. The study optimized the electrophoretic characteristics of YSZ suspensions, analyzed the correlation between experimental results and theoretical values, and achieved optimal coating results by thermal treatment of stainless steel substrates.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
J. L. Vazquez-Arce, H. Tiznado, R. Kirchheim
Summary: Electrochemical cells fabricated on a silicon wafer demonstrate stable currents and open circuit voltage. The existence of virtual electrodes and unreacted material contributes to the generation of steady currents through reactions with the electrodes and internal reactions within the electrolyte. The calculated time to reach a steady state is inversely proportional to the incubation time, the second power of electric field strength, and the diffusion coefficient of oxygen vacancies.
Article
Materials Science, Multidisciplinary
Nandang Mufti, Eprilia Trikusuma Sari, M. Tommy Hasan Abadi, Atika Sari Puspita Dewi, Markus Diantoro, Muhammad Safwan Aziz, Zulhadjri, Henry Setiyanto, Sunaryono, Poppy Puspitasari
Summary: This study investigated the use of solid electrolytes in photoelectrochemical technology to improve stability and efficiency of PEC cells. Activation of YSZ powder at different temperatures was found to be crucial for enhancing the performance of PEC devices.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Nathaniel S. Olson, Frances I. Hurwitz, Haiquan Guo, Nathan J. Madden, Jamesa L. Stokes, Richard B. Rogers, Jessica A. Krogstad
Summary: Investigating doped metal oxide systems can lead to stabilization of porous structures at high temperatures, improving thermal stability. Increasing yttria content can enhance the thermal stability of aerogels by reducing densification, suppressing crystallite growth, and maintaining the mesoporous structure up to 1200 degrees Celsius.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Shen J. Dillon, Yu-Feng Shen, Gregory S. Rohrer
Summary: By investigating the variation of grain boundary energy, the characteristics of grain boundaries in 8% yttria-stabilized zirconia were identified, with a focus on the impact of [100] orientation and [100] twist boundaries. The study results indicate that by manipulating the microstructure to increase the relative areas of [100] twist boundaries, the oxygen ion conductivity of the material can be enhanced.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Green & Sustainable Science & Technology
Sofia Saffirio, Sergii Pylypko, Sabina Fiorot, Ilaria Schiavi, Silvia Fiore, Massimo Santarelli, Domenico Ferrero, Federico Smeacetto, Sonia Fiorilli
Summary: In this study, an optimized recycling process was developed to recover YSZ from EoL SOC components. The multi-step procedure involved milling, hydrothermal treatment, and acid-assisted leaching, which resulted in YSZ powders with defined specifications. The hydrothermal treatment step played a crucial role in promoting the disaggregation of sintered powders and increasing the specific surface area. Acid-assisted leaching allowed for the full extraction of nickel while retaining the crystallinity of YSZ.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Crystallography
Daini Wang, Wenxia Wu, Xiaojun Tan, Bernard A. Goodman, Shoulei Xu, Wen Deng
Summary: This study reports the preparation and optical properties of Yb/Pr co-doped YSZ single crystals with different Yb2O3 concentrations, showing potential use for laser and fluorescence output. Results revealed a cubic phase structure, high transmission, and upconversion emission under laser excitation, highlighting the crystals' promising characteristics.
Article
Multidisciplinary Sciences
Pushpak Banerjee, Avinava Roy, Soumyadeep Sen, Arkajit Ghosh, Gourab Saha, Asiful H. Seikh, Ibrahim A. Alnaser, Manojit Ghosh
Summary: The research aimed to accurately determine the relationship between the endurance of thermal barrier coatings (TBCs) and tribological investigations. Various methods were utilized to estimate the maximum durability of TBCs and found the optimized Yttrium doping concentration to be 3.5 wt %. The results were reliable and accurate, suggesting future research directions.
Article
Materials Science, Ceramics
Lukas Theis, Frank Kern
Summary: Partially stabilized zirconia ceramics with different gadolinia content were prepared by co-milling, spray granulation, axial pressing, and pressureless sintering. The redistribution of stabilizers at high sintering temperatures was observed by XRD. Substituting gadolinia for yttria reduced the stabilizer content in the tetragonal phase and increased the tetragonality, transformability, and toughness of the materials, while decreasing the hardness. The cubic content increased with increasing gadolinia content, as predicted by thermodynamic considerations.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Yigithan Tufan, Jongee Park, Abdullah Ozturk, Batur Ercan
Summary: In this study, YSZ/clay composites were produced to improve the osseointegration and low temperature degradation of YSZ implants. The addition of 4 wt% clay significantly enhanced bone cell proliferation, spreading, and functions. The composites have the potential to be used as an alternative material in dental applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Batuhan Bal, Aligul Buyukaksoy
Summary: The study focuses on using yttria doped bismuth oxide ceramics as electrolyte supports and applying zirconia coatings to prevent reduction upon contact with hydrogen. However, the reaction between Zr source and YDB substrate as well as the choice of polymerization extent play crucial roles in crack formation and film conductivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Qaisar Khushi Muhammad, Michael Scherer, Alexander Karl Opitz, Stefanie Taibl, Christin Boehme, Marcus Rohnke, Juergen Janek, Shuang Gao, Juergen Fleig, Till Froemling
Summary: This study investigates the influence of mechanically induced dislocations on the electrical conductivity and oxygen transport in YSZ. Distinctly aligned regions with abundant and deficient dislocations are generated using advanced mechanical deformation methods. Electrical characterization reveals highly conducting effects of dislocation-induced strain within the material. Targeted oxygen tracer diffusion experiments confirm the enrichment of oxygen incorporation within the dislocation bundles. Therefore, mechanically induced dislocations have the potential to serve as a design element for tuning bulk ionic transport in YSZ.
Article
Chemistry, Physical
Zydrunas Kavaliauskas, Romualdas Kezelis, Mindaugas Milieska, Liutauras Marcinauskas, Vitas Valincius, Mindaugas Aikas, Rolandas Uscila, Arunas Baltusnikas, Audrius Zunda
Summary: Yttria-stabilized zirconia (YSZ) coatings were deposited at different arc currents using atmospheric plasma spraying, and their properties were studied through various tests. The results showed that increasing arc current enhanced surface oxidation of YSZ coatings, while YSZ coatings deposited on rotating substrates exhibited better performance compared to those on immobile substrates.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Ceramics
Deborah Hagen, Joseph J. Beaman, Desiderio Kovar
Summary: The influence of interparticle neck radius to particle size ratio (X/R) on selective laser flash sintering (SLFS) in 8-YSZ was investigated. Experiment and finite element modeling provided valuable insights into the initiation mechanisms of SLFS.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Applied
Rebecca C. Walker, Jamesa L. Stokes, Frances Hurwitz, Haiquan Guo, James K. Ferri
Summary: Aerogels are used as thermal insulators in spaceflight applications, but their thermal stability needs to be optimized. By adding the surfactant CTAB, this study increased the surface area and pore volume of YSZ aerogels, enhancing their thermal stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Environmental Sciences
Salah Eddine Sbai, Chunlin Li, Antoinette Boreave, Nicolas Charbonnel, Sebastien Perrier, Philippe Vernoux, Farida Bentayeb, Christian George, Sonia Gil
Summary: Through an atmospheric experiment conducted in Lyon, it was found that urban air has a high potential to form secondary organic aerosol (SOA), primarily influenced by OH radical photochemical oxidation rather than ozonolysis. The correlation between SOA formation and ambient environment conditions was also observed during the study.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Chemistry, Physical
K. Beliaeva, N. Grimaldos-Osorio, E. Ruiz-Lopez, L. Burel, P. Vernoux, A. Caravaca
Summary: The production of H-2 via electrolysis is considered the best alternative to traditional catalytic reforming processes. Research aims to gain deeper insights into the cleavage of main chemical bonds in the complex lignin structure across different Ni oxidation states.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Multidisciplinary Sciences
Hanyu Ma, Rakesh K. Sharma, Stefan Welzel, Mauritius C. M. van de Sanden, Mihalis N. Tsampas, William F. Schneider
Summary: This study investigates the synergy between heterogeneous catalysts and non-thermal plasma. Through experimental evidence and reactor model construction, it is revealed that neither catalyst nor plasma alone is productive, but their combination can generate nitrogen oxides. The study provides clear evidence for the synergy between heterogeneous catalysts and non-thermal plasma, and highlights the importance of their combined use.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
A. Molino, M. Hamandi, R. Grosjean, F. Dappozze, L. Lamaa, L. Peruchon, C. Brochier, K. Dembele, M. El Hajem, P. Vernoux, C. Guilard, H. Kaper
Summary: This study investigates the interaction between a photocatalyst (TiO2) and a catalyst (Pt/TiO2 and Pt/CeO2) in the oxidation of formaldehyde and toluene at room temperature. The presence of the catalyst and photocatalyst enhances the catalytic performance for formaldehyde oxidation but decreases the photocatalytic performance for toluene oxidation. The overall performance of the system can be optimized by selecting the support material for the catalyst, controlling the amount of Pt used, and adjusting the ratio of catalyst to photocatalyst. Different configurations of the photocatalyst and catalyst on the textile are also studied, with the gas stream passing through the textile being the most effective.
Article
Chemistry, Physical
N. Grimaldos-Osorio, F. Sordello, M. Passananti, J. Gonzalez-Cobos, A. Bonhomme, P. Vernoux, A. Caravaca
Summary: Developing sustainable processes for plastic recycling is an important environmental issue. Electro-oxidation of plastic waste in electrolyzers powered by renewable energies is a promising option to produce hydrogen at lower temperatures with reduced energy demand. However, the dissolution strategy of PMMA still has some drawbacks that degrade the electrochemical performance of the electrode.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Simon Fahed, Remy Pointecouteau, Mimoun Aouine, Antoinette Boreave, Sonia Gil, Valerie Meille, Philippe Bazin, Olivier Toulemonde, Alain Demourgues, Marco Daturi, Philippe Vernoux
Summary: This study describes the properties and catalytic activity of Pr-rich cerium-zirconium-praseodymium (CZP) oxides for propane and CO oxidation. The concentration of oxygen vacancies can be controlled by adjusting the quantity of Pr3+ cations. A high-energy grinding step can increase the Pr3+ concentration and enhance the reducibility and catalytic activity. Pr-rich CZP oxides show better performance in diesel oxidation catalyst applications.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Jie Yu, Jesus Gonzalez-Cobos, Frederic Dappozze, Francisco J. Lopez-Tenllado, Jesus Hidalgo-Carrillo, Alberto Marinas, Philippe Vernoux, Angel Caravaca, Chantal Guillard
Summary: Photoelectrocatalytic glycerol oxidation is a promising technology for simultaneous biomass waste utilization and hydrogen production. By applying an external bias, the photo-catalytic activity and stability of monoclinic WO3 catalyst have been enhanced for the selective generation of value-added products under near-neutral conditions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Physics, Applied
V. Guerra, T. Silva, N. Pinhao, O. Guaitella, C. Guerra-Garcia, F. J. J. Peeters, M. N. Tsampas, M. C. M. van de Sanden
Summary: This work discusses the potential of combining non-thermal plasmas and conducting membranes for in situ resource utilization on Mars by converting molecules from the Martian atmosphere to create necessary feedstock and base chemicals. Different plasma sources operate on different principles and mechanisms, allowing for exploration of various energy transfer pathways for CO2 dissociation. The coupling of plasmas with membranes is anticipated to have a synergistic effect for high rates of production of molecules per kilogram of instrumentation sent to space.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Simon Fahed, Remy Pointecouteau, Mimoun Aouine, Antoinette Boreave, Sonia Gil, Philippe Bazin, Alain Demourgues, Marco Daturi, Philippe Vernoux
Summary: Improving the activity of emission control catalysts in urban mode at low temperatures can be achieved by tailoring the metal-support interaction between platinum group metals (PGMs) and ceria. In this study, dispersing a small amount of Pd on Pr-rich cerium-zirconium-praseodymium mixed oxides led to efficient CO oxidation at low temperatures, but required a pre-reduction step to promote propane oxidation. However, the fast re-oxidation and re-dispersion of Pd nanoparticles by the high oxygen mobility of the mixed oxide rapidly deactivated the catalysts in lean conditions.
Article
Nanoscience & Nanotechnology
Usman Mushtaq, Stefan Welzel, Rakesh K. Sharma, M. C. M. van de Sanden, Mihalis N. Tsampas
Summary: A method to overcome fabrication challenges for the development of efficient and robust electrode-supported P-SOCs (protonic ceramic solid oxide cells) was discussed. The study optimized material synthesis and fabrication procedures and evaluated the performance and stability of the cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Mariana C. N. Bessa, Azahara Luna-Triguero, Jose M. Vicent-Luna, Paulo M. O. C. Carmo, Mihalis N. Tsampas, Ana Mafalda Ribeiro, Aliirio E. Rodrigues, Sofia Calero, Alexandre F. P. Ferreira
Summary: Two industrial dual-step pressure swing adsorption (PSA) processes were designed and simulated to obtain high-purity methane, CO2, and syngas from a gas effluent of a CO2 electroreduction reactor using different design configurations. NaX and MFI zeolites were selected from the investigated set for simulation. Case study 1 achieved 90.5% methane purity with a 95.2% recovery, whereas case study 2 obtained methane with a 97.5% purity and 95.3% recovery. Both case studies produced high-purity CO2 (>97%) and syngas with a H-2/CO ratio above 4. However, case study 2 had a significantly higher energy consumption compared to case study 1 (64.9 vs 29.8 W h mol(CH4) (-1)).
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Materials Science, Coatings & Films
Renee T. M. van Limpt, Marek Lavorenti, Marcel A. Verheijen, Mihalis N. Tsampas, Mariadriana Creatore
Summary: In this study, a plasma-enhanced atomic layer deposition (ALD) process was developed to fabricate nickel cobalt oxide thin films with excellent catalytic activity for the oxygen evolution reaction (OER). The crystal structure and chemical composition of the films were found to significantly influence electrical conductivity and electrocatalytic performance. Therefore, controlling the composition and structure of nickel cobalt oxide using ALD offers a promising approach to enhance its electrocatalytic performance.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Review
Chemistry, Physical
Jesus Gonzalez-Cobos, Mathieu S. Prevot, Philippe Vernoux
Summary: Lignin electrolysis offers the possibility of co-generating valuable aromatic compounds and green H2 with lower energy cost than traditional water electrolysis. This review provides an overview of anode materials and cells investigated in different conditions and summarizes the remaining challenges. Low-temperature electrolyzers can be integrated in biorefineries for lignin conversion and hydrogen co-generation.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Pramod Patil Kunturu, Marek Lavorenti, Susanta Bera, Hannah Johnson, Sachin Kinge, Mauritius C. M. Van de Sanden, Mihalis N. Tsampas
Summary: The commercialization of photoelectrochemical water-splitting devices faces challenges such as large-area, low-cost photoanodes with high efficiency and photostability. This study addresses these challenges by using scalable fabrication techniques and porous transport layer electrode supports. The results show that it is possible to scale up the photoanodes while maintaining high efficiency and stability, and integrate them with polycrystalline Si PV cells for stable water splitting.
Article
Chemistry, Multidisciplinary
Ameya Ranade, Mengmeng Lao, Remco H. M. Timmer, Erwin Zoethout, Hans J. N. van Eck, Mihalis N. Tsampas
Summary: Helium plasma irradiation is used to grow self-supported nanostructures on planar NiFe substrates for water splitting reactions. The resulting nano-tendrils are affixed to the metallic substrate, enhancing charge and mass transport, and increasing the electrochemical surface area. This technique can also be extended to fabricate self-supported 3D substrates for energy conversion and storage devices.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Zi-Ye Liu, Qian-Yu Wang, Ji-Ming Hu
Summary: In this study, a layered carbon dot composite catalyst (NiFe LDH@CDs) was prepared using a one-step coprecipitation method, without the need for heating or hydrothermal treatment. The CD-functionalized catalyst facilitated rapid charge transfer and accelerated the oxygen evolution reaction. Additionally, the heterojunction structure formed between NiFe LDH and CDs efficiently suppressed photoelectron-hole recombination.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rohit Kumar, Ankit Kumar Srivastava, Palaniyappan Nagarasu, Vedichi Madhu, Ekambaram Balaraman
Summary: We designed and synthesized a NN-CoII bidentate complex and used it for the amination of alcohols under mild and solventless conditions. The complex exhibited good reactivity towards both primary and sterically hindered secondary alcohols, providing high yields of amines. The pyrazole moiety in the ligand played a crucial role in the reaction. Furthermore, we demonstrated the reusability of the complex as a homogeneous cobalt catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shivanand Chettri, Liang-Ting Wu, Sagarmani Rasaily, Debesh Sharma, Bikram Gurung, Rajani Dewan, Sudarsan Tamang, Jyh-Chiang Jiang, Anand Pariyar
Summary: Replicating the enzymatic surface microenvironment in vitro is challenging, but constructing an analogous model could facilitate our understanding of surface effects and aid in developing an efficient bioinspired catalytic system. In this study, five unique Cu2O morphologies were generated, and the surface morphology variations were found to be a consequence of differences in the exposure of low-index facets. The reactivity of Cu2O was found to be influenced by the proportion of {110} planes, with r-Cu2O exhibiting the highest reactivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Yong Tang, Jianhao Qiu, Dingliang Dai, Guanglu Xia, Lu Zhang, Jianfeng Yao
Summary: Defect engineering has been shown to improve the photocatalytic performance. This study investigated the use of defect-rich UiO-66-NH2 wrapped by ZnIn2S4 as a catalyst for photocatalytic H2O2 production. The defects in UiO-66-NH2 enhanced O-2 adsorption and charge separation, leading to higher H2O2 yield. The insights from this work can advance the research in defect engineering of MOFs and photocatalytic H2O2 synthesis.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Ruiyang Qu, Shuxin Mao, Jana Weiss, Vita A. Kondratenko, Evgenii V. Kondratenko, Stephan Bartling, Haifeng Qi, Annette-Enrica Surkus, Kathrin Junge, Matthias Beller
Summary: The hydrogenation of amides, a challenging reaction usually performed at high temperatures, has been achieved under milder conditions using a new Pt-MoOx/TiO2 catalyst. This catalyst system enables the selective hydrogenation of various amides and imides.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaoran Niu, Ao Wang, Lei Tong, Lei Wang, Yuan Kong, Chenliang Su, Hai-Wei Liang
Summary: This study introduces a novel intermetallic PdCu3 catalyst supported on defective nanodiamond-graphene (ND@G), which exhibits high selectivity (95%) and remarkable activity (turnover frequency: 2940 h(-1)), six times higher than that of the commercial Lindlar catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Review
Chemistry, Physical
Zhiyuan Zheng, Yiming Yue, Hongying Zhuo, Qinggang Liu, Yanqiang Huang
Summary: This review presents the recent research advances on single-atom catalysis for deep reduction of CO2. Detailed introductions and summaries were classified into three categories based on proton-coupled multi-electron transfer approaches: strengthening metal-support interaction, rational design and regulation of coordination environment, and development of SACs with multi-atom active sites. The challenges and future research directions in the field of SACs for CO2 reduction are also proposed.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shiv Kumar, Paramita Datta, Anup Bhunia, Swadhin K. Mandal
Summary: This article reports a transition-metal-free process for in situ denitrogenation of tosylhydrazones, resulting in the production of various sulfones. The authors used a phenalenyl-based odd alternant hydrocarbon as a photoredox catalyst, which acted as a potent oxidant to facilitate the denitrogenation reaction. The method showed wide functional-group tolerance and high yields, making it suitable for late-stage modification of natural products.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
L. A. Luque-Alvarez, J. Gonzalez-Arias, F. Romero-Sarria, T. R. Reina, L. F. Bobadilla, J. A. Odriozola
Summary: Currently, the production of acetic acid through the carbonylation reaction of methanol has limitations, leading to the exploration of alternative methods using heterogeneous catalysts. This study investigates the methanol carbonylation reaction over a Cu-H-MOR catalyst and proposes a reaction mechanism based on the catalytic behavior and performance of the catalyst. The results provide insights into the reaction mechanism and the involvement of acid and redox centers.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)