Article
Materials Science, Multidisciplinary
Hidetoshi Miyazaki, Yu Mimaru
Summary: Crystalline CsVO3 films showing white-light emission were successfully prepared by dissolving V2O5 powder and CsCO3 in aqueous ammonia solution, adding polyethylene glycol, dip-coating the solution on borosilicate glass and PET substrates, and heat-treating the precursor film at 60 degrees C. The resulting CsVO3 film demonstrated white-light emission with a peak at 508 nm on both substrates, and even maintained emission on the flexible PET substrate.
Article
Materials Science, Multidisciplinary
Alessandro Troglia, Victor Vollema, Silvia Cassanelli, Erik van Heumen, Jorik van de Groep, Anne de Visser, Roland Bliem
Summary: Tuning the electronic, chemical, mechanical, and optical properties of solids without altering their composition represents a new paradigm in designing functional and sustainable materials. This study demonstrates significant differences in the optical, electronic, and corrosion properties of CuZr by engineering the level of structural disorder deliberately and reproducibly.
MATERIALS TODAY PHYSICS
(2022)
Review
Materials Science, Multidisciplinary
Muhammad A. Butt
Summary: This review presents several cost-effective thin-film coating methods, including dip-coating, spin-coating, spray-coating, blade-coating, and roll-coating. Each method has its own advantages and disadvantages, and the selection of coating method should be based on the type and size of the substrate.
Article
Multidisciplinary Sciences
May Zin Toe, Swee-Yong Pung, Khatijah Aisha Binti Yaacob, Soe Soe Han
Summary: The study focused on depositing ZnO thin films on fluorine-doped tin oxide glass substrates using dip-coating method to improve the performance of dye-sensitized solar cells. By adjusting the number of dip-coating cycles, the thickness and properties of the ZnO thin films could be controlled, leading to enhanced photovoltaic performance.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Arnab Kumar Sarkar, Devabrata Sarmah, Sunandan Baruah, Pranayee Datta
Summary: The field of optical thin films has received significant attention for its potential applications in various domains. This study focuses on the conventional layer-by-layer (LBL) dip coating method and aims to understand its growth conditions and optimize them for different materials. By optimizing parameters such as surface functionalization, dipping time, drying time, number of cycles, and timing of intermediate layers, controlled growth of thin films can be achieved.
Review
Nanoscience & Nanotechnology
Q. P. Cao, L. B. Lv, X. D. Wang, J. Z. Jiang, H-J Fecht
Summary: This article summarizes the preparation techniques of nanoglasses and nanostructured metallic glass thin films, as well as their potential applications in multiple industrial fields. Studies have shown that different preparation parameters can affect the microstructure and properties of the materials, providing important information for further optimizing material performance and providing research references.
MATERIALS TODAY NANO
(2021)
Article
Chemistry, Multidisciplinary
Mathilde Prudent, Florent Bourquard, Alejandro Borroto, Jean-Francois Pierson, Florence Garrelie, Jean-Philippe Colombier
Summary: Surface nanostructuring by femtosecond laser is an efficient way to manipulate surface topography and create advanced functionalities. Thin-film metallic glasses obtained by physical vapor deposition exhibit unique properties making them resilient to laser-induced nanopatterns. The morphological response of Zr65Cu35 alloys under ultrafast irradiation and the use of double pulses femtosecond laser are critical for forming uniform nanostructures in materials with poor predisposition.
Article
Materials Science, Multidisciplinary
Franklin J. Mendez, Daniel Barron-Romero, Obed Perez, Ricardo D. Flores-Cruz, Yahse Rojas-Challa, Jorge A. Garcia-Macedo
Summary: Powder samples of TiO2 and Pt/TiO2 were prepared using conventional methods, and then thin films incorporating these powders were prepared via dip coating. The samples were characterized using various techniques. The results showed that incorporating the powder photocatalyst into the thin film improved the photocatalytic performance significantly. Furthermore, the thin film samples were more stable during three consecutive runs.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Energy & Fuels
Pannan Kyesmen, Nolwazi Nombona, Mmantsae Diale
Summary: Alpha-Fe2O3 films of various thicknesses were prepared using dip, spin, and combined dip/spin coating methods in this research. The dip-coated films exhibited the best photoresponse, while the films prepared by spin coating method showed the least photocurrent values. The study highlighted the importance of optimizing both coating techniques and film thickness for preparing nanostructured alpha-Fe2O3 films for PEC applications.
FRONTIERS IN ENERGY RESEARCH
(2021)
Article
Materials Science, Ceramics
Yang Zhu, Guo Shaobo, Cai Henghui, Dong Xianlin, Wang Genshui
Summary: In this study, epitaxial LaNiO3 thin films with excellent conductivity were successfully prepared using a facile and low-cost polymer assisted deposition (PAD) method. Various structural and electrical characterizations showed that the films have good crystallinity, smooth surface, and stoichiometric composition. The results demonstrate that the PAD method has great potential for preparing epitaxial functional thin film materials.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Materials Science, Ceramics
Mohammed Althamthami, Elhachmi Guettaf Temam, Hachemi Ben Temam, Gamil Gamal Hasan, Najran Malfi
Summary: This study utilizes environmentally friendly cobalt oxide thin films with high photocatalytic activity. The effects of different withdrawal speeds during the dip-coating process on the structure, morphology, roughness, and optical properties of the thin films were investigated. The addition of hole-scavengers improved the photocatalytic degradation performance. The findings emphasize the potential application of this material for treating organic contaminants in various wastewater sources under sunlight irradiation.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Anilkumar B. Hirpara, Sunil H. Chaki, Rohitkumar M. Kannaujiya, M. P. Deshpande
Summary: In this study, Cu2ZnSnS4 (CZTS) thin films were prepared using the dip-coating technique and showed perfect stoichiometry and a tetragonal unit cell phase. Scanning electron microscopy and electron diffraction confirmed the uniformity and presence of fringes in the films, with fringe width matching the inter-planar spacing of the CZTS (112) major plane. The thin films exhibited a direct bandgap optical property with a value of 1.5 eV. Raman analysis confirmed the CZTS phase of the prepared thin films. The CZTS thin film/Ag-paste/Cu-wire combination had promising photoresponse potential for future applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Coatings & Films
Muhammad R. Islam, Muhammad G. Azam
Summary: Undoped ZnO and Mg-doped ZnO thin films were synthesized by sol-gel dip-coating technique. The study showed that Mg doping increased the porosity of the films, decreased their crystallinity, and led to the formation of localized energy states. The enhanced photocatalytic efficiency of Mg-doped ZnO thin films was attributed to charge trapping by localized states and an increase in surface area due to porosity induced by Mg doping.
SURFACE ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Yeonsik Choi, Byunguk Kim, Dowwook Lee, Sooyeon Kang, Jungtae Kim, Jangho Bae, Hyeongtag Jeon
Summary: In this study, SnS2 thin films with different concentrations of zinc doping were successfully prepared using atomic layer deposition. As the doping concentration increased, the optical and electrical properties of the thin films exhibited significant changes, indicating their potential for optoelectronic applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Stefania Fiameni, Simone Battiston, Valentina Castellani, Simona Barison, Lidia Armelao
Summary: The goal of this study was to identify the environmental hotspots of an experimental research work at lab scale involving physical vapor deposition magnetron sputtering of aluminum titanium nitride based thin coatings onto commercial laminated steel. The main driver of impacts in the analyzed laboratory activities was found to be the electricity used for instruments operations, particularly for vacuum keeping. Optimization strategies were evaluated to reduce overall electricity consumption and improve the environmental profile of experimental activities.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
D. Yi, L. Peres, A. Pierrot, S. Cayez, R. Cours, B. Warot-Fonrose, C. Marcelot, P. Roblin, K. Soulantica, T. Blon
Summary: The organization of nano-objects on macroscopic surfaces is crucial for the advancement and application of nanotechnologies. This study demonstrates the growth and self-organization of metallic nanowires into hexagonal superlattices on surfaces, with the ability to tune the characteristic lengths depending on the stabilizing surfactants used.
Article
Chemistry, Multidisciplinary
Paul A. Advincula, Jacob L. Beckham, Chi Hun Choi, Weiyin Chen, Yimo Han, Dmitry Kosynkin, Alexander Lathem, Alvaro Mayoral, Miguel Jose Yacaman, James M. Tour
Summary: We demonstrate the synthesis of a solvent- and gas-free 2D carbon nanotube/graphene network through flash Joule heating of pristine carbon nanotubes. The proportion of each morphology in the hybrid material can be controlled by varying the pulse time. Epoxy composites made with the hybrid material show significantly increased hardness and Young's modulus compared to neat epoxy, indicating that flash Joule heating can effectively convert carbon nanotubes into a hybrid network for reinforcement.
Article
Chemistry, Multidisciplinary
Oscar Suarez-Riano, Gabriel Mencia, Simon Tricard, Jerome Esvan, Pier-Francesco Fazzini, Bruno Chaudret, Edwin A. Baquero
Summary: In this study, a new NHC-stabilized water-soluble Pd/Ni system is presented, which can perform H/D exchange reactions in an enantiospecific manner without reducing the aromatic ring of phenylalanine and tyrosine due to a synergetic Pd-Ni effect.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Juan J. Mercadal, Alvaro Mayoral, Jose Luis G. Fierrod, Enrique Garcia-Bordeje, Ignacio Melian-Cabrera
Summary: By purifying the raw SWCNT in one step, lowering the MeOx concentration and generating surface C=O groups, the catalytic performance of SWCNT in the oxidative dehydrogenation of ethylbenzene was significantly improved. The textural improvement and MeOx removal contributed to the enhancement of EB conversion, ST selectivity, and reduction of COx selectivity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Yawen Xiao, Ahmed S. Helal, Eva Mazario, Alvaro Mayoral, Alexandre Chevillot-Biraud, Philippe Decorse, Remi Losno, Francois Maurel, Souad Ammar, John S. Lomas, Miryana Hemadi
Summary: In this study, Maghemite (gamma-Fe2O3) nanoparticles were functionalized with 3-aminopropyltriethoxysilane (APTES) and reacted with diethylenetriamine-pentaacetic acid (DTPA) to obtain a nanohybrid adsorbent DAMNP. The DAMNP showed high adsorption capacity and selectivity for uranyl ions, making it a promising candidate for recovering uranium from nuclear wastewaters.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Deliang Yi, Cecile Marcelot, Idaline Romana, Marine Tasse, Pier-Francesco Fazzini, Laurent Peres, Nicolas Ratel-Ramond, Philippe Decorse, Benedicte Warot-Fonrose, Guillaume Viau, Philippe Serp, Katerina Soulantica
Summary: 2D ultrathin metal nanostructures, such as Pt nanosheets, display unique physical and chemical properties that make them advantageous in catalysis. In this study, a selective synthesis method using defect engineering was employed to create Pt nanosheets with preserved planar defects. These nanosheets showed better stability and higher selectivity in phenylacetylene hydrogenation compared to a commercial Pt/C catalyst.
Article
Multidisciplinary Sciences
Jian Li, Zihao Rei Gao, Qing-Fang Lin, Chenxu Liu, Fangxin Gao, Cong Lin, Siyao Zhang, Hua Deng, Alvaro Mayoral, Wei Fan, Song Luo, Xiaobo Chen, Hong He, Miguel A. Camblor, Fei-Jian Chen, Jihong Yu
Summary: ZEO-3 is a highly stable pure silica zeolite with a multidimensional, interconnected system of extra-large pores open through windows made by 16 and 14 silicate tetrahedra. It has a higher specific surface area compared to other zeolites and metal-organic frameworks, and exhibits excellent performance for volatile organic compound abatement and recovery.
Article
Chemistry, Multidisciplinary
Chengmin Li, Junyan Li, Yi Zhou, Qing Zhang, Alvaro Mayoral, Gang Li, Osamu Terasaki
Summary: A precise investigation of NbO has been conducted using advanced electron microscopy combined with powder and single crystal X-ray diffraction. It has been found that electron beams induced a structural transition, resulting in a final structure with different space group and atomic positions. Antiphase planar defects were observed in the pristine NbO and were related to the structural transformation. Theoretical calculations using density functional theory supported the experimental conclusions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Zhuoya Dong, Enci Zhang, Yilan Jiang, Alvaro Mayoral, Qing Zhang, Yanhang Ma, Huaidong Jiang
Summary: In this study, electron ptychography was used to directly observe the local structures of two zeolites, Na-LTA and ZSM-5. The framework atoms and extra-framework cations were successfully imaged. This approach provides a new way to locally image zeolite structures and is important for further studying and tuning zeolite active sites at the atomic level.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Rafael Delgado, Carlos Marquez-Alvarez, Alvaro Mayoral, Ramon de la Serna, Javier Agundez, Joaquin Perez-Pariente
Summary: Gold nanospecies immobilized on functionalized mesoporous silica were tested as catalysts for cyclohexene oxidation. The materials were compared with previously reported ones functionalized during synthesis. Catalytic tests under different conditions were carried out and the samples were characterized by various techniques. The catalysts showed lower activity than those supported on S-bearing SBA-15 functionalized in situ due to different ratios of gold to sulfur. The reaction was found to be photocatalyzed by in situ formed AuNPs under ambient illumination.
CHEMISTRY-SWITZERLAND
(2023)
Article
Physics, Applied
A. Pierrot, D. Yi, L. Peres, K. Soulantica, R. Cours, B. Warot-Fonrose, C. Marcelot, M. Respaud, F. Beron, T. Blon
Summary: Ultradense arrays of magnetic nanoelements with high switching fields and low standard deviations were studied. The switching field distribution in bottom-up synthesized single-crystalline vertical Co nanowires self-organized in 2D hexagonal superlattices was characterized. The results provide insights into the magnetic properties of nanowire arrays and their potential for magnetic recording media.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Anna Liutkova, Victor Drozhzhin, Jason M. J. J. Heinrichs, Valentin Jestl, Angelina Evtushkova, Brahim Mezari, Alvaro Mayoral, Nikolay Kosinov, Emiel J. M. Hensen
Summary: The selectivity of the methanol-to-hydrocarbons reaction can be modified by using alkaline earth metals to modify zeolite catalysts. Sr2+ was used as a catalyst and its higher atomic number facilitated characterization by scanning transmission electron microscopy and operando X-ray absorption spectroscopy. The presence of Sr2+ in the zeolite micropores during the reaction resulted in an increased adsorption of reactants compared to zeolites without Sr, explaining the increased propylene yield and lower deactivation rate.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Kingsley Christian Kemp, Alvaro Mayoral, Suk Bong Hong
Summary: In this study, zeolite intergrowths of RTH/ITE and MEL/MFI were synthesized using 2-isopropylimidazolium-based cations as organic structure-directing agents in concentrated fluoride media. The phase selectivity in the synthesis was found to depend on the concentration of OSDA cations, fluoride anions, and the type of OSDA used. Molecular modeling results suggest that the crystallization of intergrowth zeolites in fluoride media may be controlled kinetically. Cs-corrected STEM analysis revealed the existence of previously unobserved MEL-MFI intergrowth in crystals synthesized under specific conditions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ruxandra G. Chitac, Vladimir L. Zholobenko, Robin S. Fletcher, Emma Softley, Jonathan Bradley, Alvaro Mayoral, Alessandro Turrina, Paul A. Wright
Summary: The SWY-type aluminosilicate zeolite, STA-30, has been synthesized via different routes. It has been found that the synthesis conditions can greatly affect the crystal morphology, intracrystalline porosity, and silanol concentrations of STA-30. Samples templated by diDABCO-C8(2+) show hierarchical microporosity and higher pore volumes compared to other samples.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Sergio Tatay, Sonia Martinez-Gimenez, Ana Rubio-Gaspar, Eloy Gomez-Oliveira, Javier Castells-Gil, Zhuoya Dong, Alvaro Mayoral, Neyvis Almora-Barrios, Natalia M. Padial, Carlos Marti-Gastaldo
Summary: Changing the perception of defects as imperfections in crystalline frameworks into correlated domains amenable to chemical control and targeted design offers opportunities for designing porous materials with superior performance. By using UiO-66 as an experimental platform, the authors explored the framework chemical space of defective materials and demonstrated the existence of correlated disorder.
NATURE COMMUNICATIONS
(2023)
