Article
Chemistry, Multidisciplinary
Junyu Hong, Feilong Liu, Miroslav D. Dramicanin, Lei Zhou, Mingmei Wu
Summary: A series of Yb3+- and Er3+-doped Ca3Sc2Si3O12 (CSS) upconversion (UC) phosphors were synthesized by the sol-gel combustion method to develop novel luminescent materials for optical temperature measurement. The addition of Yb3+ greatly enhanced the emission of Er3+ by effective energy transfer. The prepared CSS:Yb3+,Er3+ phosphors exhibited green and red emissions corresponding to specific transitions of Er3+, and showed excellent temperature-dependent behavior with high sensitivity.
Article
Chemistry, Physical
H. J. L. Clabel, Kelly T. Paula, M. A. Pereira-da-Silva, J. D. Vollet-Filho, J. E. Marega, C. R. Mendonca
Summary: Femtosecond lasers offer high performance and precision for fabricating optical and photonic devices due to their high resolution, flexibility, and low damage. BaTiO3:Er3+/Yb3+ (BTEY) perovskite films were successfully fabricated using spin coating at room temperature. The effects of different parameters in cylindrical focusing of the fs-laser on patterning were analyzed, and the energy ablation threshold (Eth) was measured. The results showed that the number of pulses per spot has an impact on patterning performance and surface morphology.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Boxu Xu, Chao Song, Jie Song, Rui Huang, Zhenxu Lin, Yi Zhang, Shaomin Lin, Yanqing Guo, Guangxu Chen, Jun Song
Summary: In this study, well-crystallized Yb3+/Er3+/Tm3+-tridoped Y2O3-ZnO ceramic nano-phosphors were prepared and their structures and emission properties were studied. It was found that increasing luminescent centers, weakening lattice symmetry, and releasing dormant rare earth ions can enhance the emission.
Article
Chemistry, Inorganic & Nuclear
Liuyan Zhou, Yanling Chen, Yuyu Shen, Jianhua Lin, Jie Fu, Lei Lei, Renguang Ye, Degang Deng, Shiqing Xu
Summary: Down/upconversion Ca14Al10Zn6O35 inorganic phosphors codoped with Ti4+/Eu3+ or Yb3+/Er3+ were prepared and studied for their crystal structure and luminescence properties. The results showed that Ti4+ and Eu3+ ions occupied specific sites in the host lattice and can be used as temperature sensors based on fluorescence intensity ratio (FIR) technology. The phosphors exhibited high relative sensitivity and temperature measurement precision.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Teng Zheng, Marcin Runowski, Natalia Stopikowska, Malgorzata Skwierczynska, Stefan Lis, Peng Du, Laihui Luo
Summary: Optical thermometers based on Er3+/Tm3+/Yb3+-doped Bi2MoO6 materials exhibit bright color-tunable upconversion emissions and exceptional thermal sensitivity, making them promising candidates for multi-parameter temperature sensing applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Meimei Xu, Wanyin Ge, Jindou Shi, Yuanting Wu, Yongxiang Li
Summary: The research team synthesized a series of nanoparticles that emit red, yellow, and green luminescence using a sol-gel method, and fabricated transparent, elastic, and environmentally friendly anti-counterfeiting flexible films, which have excellent concealment during the day but can be written with different patterns using a laser pointer and recognized by a smartphone scanner.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
O. F. Goktas, N. E. Koksal, O. Kaplan, A. Yildiz
Summary: The sol-gel method was used to fabricate Al-doped ZnO (AZO) thin films on p-Si substrates with smooth surfaces and highly oriented crystal structures. The analysis revealed that the AZO/Si heterojunctions exhibited nonideal diode behavior, with the 80 nm thick AZO layer demonstrating good rectifying properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Peng Wang, Xusheng Wang, Guorong Li, Yanxia Li, Xi Yao, Zhongbin Pan
Summary: In this study, rare-earth element substituted ferroelectric thin films were designed and fabricated, achieving excellent results in energy storage and luminescence, with good temperature stability and fatigue endurance. Additionally, the emission color can be controlled by changing the ion concentration, demonstrating multi-functionality.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Irena Spasojevic, Guillaume Sauthier, Jose Manuel Caicedo, Albert Verdaguer, Neus Domingo
Summary: The study focuses on the XPS analysis of ferroelectric BaTiO3 thin films to determine the relationship between surface chemistry, polarization direction, and stability. Changes were observed under environmental conditions, heating in O2, and irradiation in vacuum. The research identified two different oxidation states of O atoms in Ba compounds and demonstrated BaO2 as an important active species for studying screening mechanisms related to catalytic activity in the ferroelectric material.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Lena Meyniel, Cedric Boissiere, Natacha Krins, Sophie Carenco
Summary: In this study, thin films of lanthanide oxysulfide were developed that are compatible with flexible substrates and retain the robustness advantages of inorganic compounds. The films, made using a low-temperature dip coating method, maintained the optical quality of the materials. The thickness of the films could be adjusted in a wide range, and thermal treatment was optimized to remove organic ligands while preserving the integrity of the nanoparticles.
Article
Chemistry, Physical
Huihuang Xu, Hua Hao, Yanjiang Xie, Xin Wang, Jianlu Geng, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: Lead-free BaZr0.25Ti0.75O3 films grown via a sol-gel method on Pt/Ti/SiO2/Si substrates exhibit good microstructure and energy storage performance, with moderate polarization and high breakdown strength, as well as excellent temperature stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Boxu Xu, Chao Song, Jie Song, Rui Huang, Zhenxu Lin, Yi Zhang, Shaomin Lin, Jun Song
Summary: In this study, Yb3+/Er3+/Tm3+-tridoped Y2O3-ZnO ceramic phosphors with excellent physical stability and porous structure were prepared by sol-gel synthesis. The emissions of the phosphors can be intensified and the color coordinates can be adjusted by tuning the Tm3+ ratio, concentration, and excitation laser pump power. Moreover, the color coordinates of the luminescence can also be linearly adjusted by heating the phosphors. These findings have significant implications for the practical application of phosphors.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Physical
Carlos E. Caballero-Guerecaa, M. R. Alfaro Cruza, E. Luevano-Hipolitoa, Leticia M. Torres-Martinez
Summary: Highly transparent ZnO films were successfully deposited on glass substrates using the sol-gel technique. The quality of the films was influenced by the concentration of zinc in the precursor solution and the annealing temperature. The films showed good crystallinity and preferential orientation, and exhibited high transmittance of over 90%.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Angel de Jesus Morales-Ramirez, Margarita Garcia-Hernandez, Maria Luz Carrera-Jota, Paulina Garnica-Chavez, Brenely Gonzalez-Penguelly, Aristeo Garrido-Hernandez
Summary: Lu2Si2O7:Eu3+ thin films were prepared using sol-gel methods and dip coating, and exhibited a monoclinic structure with preferential orientation along a specific direction after heat treatment. The films showed strong emission from Eu3+ ions, with the optical yield and decay time increasing with the SiO2 content.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Shuanghao Wu, Liuxue Xu, Kun Zhu, Baijie Song, Hao Yan, Bo Shen, Jiwei Zhai
Summary: The control of grain orientation and enhancement of piezoelectric and ferroelectric properties in thin films were achieved by introducing Nb-doped SrTiO3 single crystalline substrates. Consequently, Nb-doped SrTiO3 substrates facilitated the growth of oriented thin films with larger piezoelectric coefficient, energy storage density, and efficiency, promising broad application prospects.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
A. C. Ferrel-Alvarez, M. A. Dominguez-Crespo, H. Cong, A. M. Torres-Huerta, D. Palma-Ramirez, J. T. S. Irvine
Summary: The La0.7-xPrxCa0.3MnO3 perovskites synthesized by microwave-assisted method were evaluated for their potential as cathode materials in solid oxide fuel cells applications. The performance, including thermal properties and electrical conductivity, was found to be influenced by the presence of different amounts of Pr atom in the materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Polymer Science
Silvia Beatriz Brachetti-Sibaja, Diana Palma-Ramirez, Aide Minerva Torres-Huerta, Miguel Antonio Dominguez-Crespo, Hector Javier Dorantes-Rosales, Adela Eugenia Rodriguez-Salazar, Esther Ramirez-Meneses
Summary: The optimal conditions for synthesizing and purifying carbon nanotubes from ferrocene were determined through CVD, with key parameters being processing temperature and purification method. The CNTs produced by CVD were found to be superior to commercial ones for preparing composites with conductive polymers, enhancing structural stability and electrical properties. The synergistic effects among hydrogen bonds, stability, and conductivity were more pronounced in PANI/MWCNTs composites, suggesting potential for various technological applications.
Article
Polymer Science
Karina Santiago-Castillo, Aide Minerva Torres-Huerta, Deyanira del Angel-Lopez, Miguel Antonio Dominguez-Crespo, Hector Dorantes-Rosales, Diana Palma-Ramirez, Helen Willcock
Summary: This study reports a two-step process for the preparation of PVA-CTS-Ag electrospun fibers and analyzes their microstructural, mechanical, and antibacterial properties, confirming their potential application in the biomedical field.
Article
Materials Science, Ceramics
Jessica Ramirez-Hernandez, Aide M. Torres-Huerta, Silvia B. Brachetti-Sibaja, Miguel A. Dominguez-Crespo, Diana Palma-Ramirez, Adela E. Rodriguez-Salazar, Araceli Ezeta-Mejia
Summary: In this work, La0.7_xLnxCa0.3MnO3 (Ln = Pr or Sm)-La1_xLnxCa0.3MnO3 perovskite materials were synthesized using the Pechini method, and the effect of the type of cation and composition on the properties was evaluated. The substitution of La by Pr or Sm did not alter the crystal structure of the material, but caused cell distortion. The distortion of the crystal structure promoted hole-doped system through Jahn-Teller mechanism. The adsorption-desorption isotherms showed that Pr compositions exhibited mesoporous features, while the Sm compositions showed a transition from micro- to meso-porous characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Roberto Cardenas-Zapata, Diana Palma-Ramirez, Abelardo Flores-Vela, Miguel A. Dominguez-Crespo, Aide M. Torres-Huerta, Hector Dorantes-Rosales, Silvia B. Brachetti-Sibaja
Summary: This study focuses on the valorization of sawdust biomass to extract cellulose and recover hemicellulose and lignin. The proposed green method shows potential in producing a biomass rich in alpha-cellulose, which can have significant impact on the development of biodegradable thermoplastics. The type of biomass and pretreatment play a crucial role in determining the composition and properties of the extracted materials.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
J. J. de la Cruz-Cruz, M. A. Dominguez-Crespo, E. Ramirez-Meneses, A. M. Torres-Huerta, S. B. Brachetti-Sibaja, A. E. Rodriguez-Salazar, E. Pastor, L. E. Gonzalez-Sanchez
Summary: Pd and Pd-based catalysts are considered the best alternative to Pt for hydrogen production due to their similar electronic structures and more abundant reserves. The in-situ synthesis of PdNi/C electrode materials with different Ni content showed that low Ni amounts can enhance hydrogen adsorption on the bimetallic active surface, leading to improved electrochemical surface area and real area. The synergistic effect between Pd and Ni components in PdNi alloys improves the overpotential of the hydrogen evolution reaction, with Ni content influencing hydrogen adsorption resistance and charge transfer resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Multidisciplinary Sciences
J. J. de la Cruz-Cruz, M. A. Dominguez-Crespo, E. Ramirez-Meneses, A. M. Torres-Huerta, S. B. Brachetti-Sibaja, A. E. Rodriguez-Salazar, E. Pastor, L. E. Gonzalez-Sanchez
Summary: This study evaluates the effect of Ni amount on the hydrogen evolution reaction during the in situ synthesis of vulcan supported PdNi nanostructures using an organometallic approach in alkaline medium. The results show that adjusting the organometallic method can improve the electrochemical performance of the hydrogen evolution reaction.
Article
Environmental Sciences
A. Licona-Aguilar, A. M. Torres-Huerta, M. A. Dominguez-Crespo, D. Palma-Ramirez, E. Conde-Barajas, M. X. L. Negrete-Rodriguez, A. E. Rodriguez-Salazar, D. S. Garcia-Zaleta
Summary: This study synthesized activated carbons from sugarcane bagasse and orange peel and used carbon foams for the adsorption of heavy metals in synthetic water. The results showed that carbon foam from orange peel exhibited a higher removal rate for lead and copper at pH 5.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
A. I. Licona-Aguilar, A. M. Torres-Huerta, M. A. Dominguez-Crespo, D. Palma-Ramirez, E. Conde-Barajas, M. X. L. Negrete-Rodriguez, A. E. Rodriguez-Salazar, D. S. Garcia-Zaleta
Summary: This document provides additional information on the production of activated carbons and carbon foams from agroindustrial wastes, specifically orange peel and sugarcane bagasse. The data presented includes characterization of carbonaceous structures, such as surface area analysis and pore size distribution, as well as the evaluation of their electrokinetic potential. The document also demonstrates the adsorption capacity of these materials for the removal of metallic ions in polluted waters. The findings contribute to the promotion of the reuse of agroindustrial wastes and the synthesis of carbonaceous structures for water purification.
Article
Chemistry, Applied
K. Anaya-Garza, A. M. Torres-Huerta, M. A. Dominguez-Crespo, J. Moreno-Palmerin, E. Ramirez-Meneses, A. E. Rodriguez-Salazar
Summary: The dip-coating method was used to create a UHMWPE/ODPA bilayer coating on Ti6Al4V alloys, effectively improving their corrosion resistance and delaying the failure of medical implants.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
G. Zacahua-Tlacuatl, E. Ramirez-Meneses, A. Manzo-Robledo, A. M. Torres-Huerta, I. Betancourt, K. Philippot, M. Ibrahim, M. A. Dominguez-Crespo
Summary: In this study, polyvinylpyrrolidone (PVP)-stabilized palladium-rhodium nanostructures were synthesized for use as carbon-supported electrodes (PdxRh1-x-PVP/C) in the methanol oxidation reaction (MOR). The nanostructures were prepared through the hydrogenation of tris(dibenzylideneacetone)dipalladium(0) (Pd2(dba)3) and tris(allyl) rhodium (Rh(h3-C3H5)3) complexes in tetrahydrofuran (THF) with PVP as a stabilizer. The resulting nanostructures exhibited enhanced methanol electro-oxidation in alkaline medium due to the synergistic effect between Pd and Rh metals. Among the evaluated electrode materials, the Pd8Rh2-PVP/C electrode showed the highest catalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Polymer Science
L. P. A. Guerrero-Ortega, E. Ramirez-Meneses, I Betancourt, L. Lartundo-Rojas, R. Mendoza-Cruz, A. M. Torres-Huerta, M. A. Dominguez-Crespo
Summary: In this study, different long-chain primary alkylamines were used to stabilize Ni-NiO nanoparticles, and it was found that the chain length affected the microstructural and magnetic properties. The surface composition and particle size were also influenced by the primary alkylamines.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Environmental Sciences
Luisiana Morales-Zamudio, Alejandro Fierro-Cabo, Md Saydur Rahman, Miguel Antonio Dominguez-Crespo
Summary: House geckos cohabitate with humans in tropical and subtropical regions. These geckos are exposed to suspended particulate matter and dust, and as exotic species, they have unique behaviors and biological traits. The study found that the metal contents in these geckos are related to the air pollution sources in their environment, suggesting that they can be used as biomonitoring indicators for metal pollutants.
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES
(2023)
Article
Biotechnology & Applied Microbiology
M. E. Juarez-Mendez, D. Palma-Ramirez, S. B. Brachetti-Sibaja, A. M. Torres-Huerta, M. A. Dominguez-Crespo, D. S. Garcia Zaleta, H. J. Dorantes-Rosales, F. Gutierrez-Galicia
Summary: This study investigates the transformation of SUP cups into crystalline nanocellulose (CNC) and the effects of acid hydrolysis concentration on its properties. The optimized CNC obtained at 64% v/v concentration exhibits ribbon-like morphologies rich in cellulose types I alpha and II with high crystallinity and nanosize scale. PMMA-g-CNC samples show high thermal stability and nanometric scale, making them potential reinforcement agents for incompatible polymers.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Food Science & Technology
A. I. Licona-Aguilar, J. A. Lois-Correa, A. M. Torres-Huerta, M. A. Dominguez-Crespo, V. Urdapilleta-Inchaurregui, A. E. Rodriguez-Salazar, S. B. Brachetti-Sibaja
Summary: In this study, dietary fibers (DF) were synthesized from SCB wastes and incorporated into wheat flour in different amounts to make composite cookies. The study evaluated the potential use of these cookies in bakery products and compared them with control biscuits made with only wheat flour. The results showed that the DF from SCB residues had a high content of insoluble dietary fiber, making them suitable for human consumption. The composite cookies had different effects on color parameters depending on the amount of DF used. The sensory evaluation indicated that the acceptance of the cookies increased with the addition of bagasse, with the highest acceptance at 15 g kg(-1). The use of SCB wastes as a source of DF is a feasible alternative for the formulation of bakery products.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
