Article
Materials Science, Multidisciplinary
Shahnawaz Uddin, Md Roslan Hashim, Mohd Zamir Pakhuruddin
Summary: Nanoporous b-Si synthesized through aluminium-catalyzed chemical etching (ACCE) process demonstrates superior broadband light absorption, making it suitable for photovoltaic and optoelectronic devices.
Article
Optics
Elena Mikheeva, Remi Colom, Karim Achouri, Adam Overvig, Felix Binkowski, Jean-yves Duboz, Sgbastien Cueff, Shanhui Fan, Sven Burger, Andrea Alu, Patrice Genevet
Summary: In this paper, we use temporal coupled mode theory to predict the location of phase singularities and control the induced phase modulation of light in wavefront-shaping devices. The study shows that breaking spatial inversion symmetry lifts the degeneracy of reflection zeros and introduces a complex singularity with a positive imaginary part. Our work establishes a general framework for predicting and studying the response of resonant systems in photonics and metaoptics.
Article
Materials Science, Ceramics
Xueting Li, Wangwang Lei, Jian Wei, Yanbin Zhang, Zongmo Shi
Summary: In this study, lightweight porous SiC/Si3N4 composite nanowires with excellent performance of broadband electromagnetic wave absorption were successfully prepared. These nanowires can be used as lightweight electromagnetic wave absorbers in high-temperature environments.
CERAMICS INTERNATIONAL
(2023)
Review
Engineering, Multidisciplinary
Dandan Zhi, Tian Li, Jinzhe Li, Hesong Ren, Fanbin Meng
Summary: Graphene aerogels with unique properties have attracted considerable attention, especially in high-performance electromagnetic wave attenuation. The three-dimensional network and incorporation of other lossy materials contribute to the improvement of microwave absorption efficiency. Current research focuses on synthetic strategies, structural characteristics, and multifunctional microwave absorbing materials based on graphene aerogels.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Wonmi Ahn, Johan F. Triana, Felipe Recabal, Felipe Herrera, Blake S. Simpkins
Summary: Reaction-rate modifications due to the strong coupling between molecular vibrations and the cavity vacuum have been investigated, but the mechanisms behind these observations are still unknown. This study extracted reaction-rate constants from evolving cavity transmission spectra, showing resonant suppression of the intracavity reaction rate for a specific alcoholysis reaction. By tuning the cavity modes to be resonant with the reactant and product vibrations, as well as cooperative modes, up to 80% suppression of the reaction rate was observed. An open quantum system model was used to interpret these results, suggesting the role of light-matter quantum coherences in modifying the vibrational distribution of reactants and highlighting the connection between chemistry and quantum science.
Article
Chemistry, Physical
Michael Kovalev, Ivan Podlesnykh, Alena Nastulyavichus, Nikita Stsepuro, Irina Mushkarina, Pavel Platonov, Evgeniy Terukov, Sergey Abolmasov, Aleksandr Dunaev, Andrey Akhmatkhanov, Vladimir Shur, Sergey Kudryashov
Summary: Light-trapping structures on various material surfaces have gained significant attention for their role in science and technology. This article explores different methods for manufacturing light-trapping black silicon, including laser, chemical, and hybrid methods. The authors introduce a hybrid chemical/laser texturing method, combining laser post-texturing with pyramidal structures obtained from chemical etching. The results show that laser texturing of chemically microtextured silicon wafers takes significantly less time and results in lower reflectance compared to purely chemical treatment.
Article
Optics
Xiaodong Wu, Hailin Cao, Junhui Peng, Zhenya Meng
Summary: Dynamic and independent amplitude and phase manipulation is crucial for advanced wavefronts engineering applications. This paper introduces bi-layer stacked graphene Pancharatnam-Berry (P-B) phase metasurface and mono-layer graphene P-B phase metasurface to tackle the coupling issue between amplitude and phase, achieving independent control and reducing their coupling strength. The simulation results demonstrate the feasibility of the proposed models, which offer a flexible and straightforward approach for precise wave reconstruction applications such as holography, optical tweezers, and high-resolution imaging.
Article
Optics
Xiaodong Wu, Hailin Cao, Junhui Peng, Zhenya Meng
Summary: This paper proposes and numerically demonstrates the bi-layer stacked graphene Pancharatnam-Berry (P-B) phase metasurface and mono-layer graphene P-B phase metasurface to address the coupling issue between amplitude and phase in wavefront modulation. The simulation results show that the proposed models can achieve independent control of amplitude and phase and significantly reduce their coupling strength. Our findings offer a flexible and straightforward method for precise wave reconstruction applications such as holography, optical tweezers, and high-resolution imaging.
Article
Materials Science, Multidisciplinary
Yanping Wang, Zhenzhen Hui, Gazi Hao, Shaoqing Zhang, Xiang Ke, Haoran Yan
Summary: In this study, dendritic-like FeCo and rose-like CoNi with enhanced electromagnetic wave absorption properties were synthesized using a hydrothermal process. The results revealed that both dendritic-like FeCo and rose-like CoNi exhibited excellent electromagnetic wave absorption capacity at thin absorber thickness, outperforming the conventional magnetic material Co.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Environmental Sciences
Suping Zhao, Daiying Yin, Ye Yu, Shichang Kang, Xiaolin Ren, Jing Zhang, Yong Zou, Dahe Qin
Summary: The Sichuan Basin, surrounded by high mountains and plateaus, is one of the most polluted regions in China. Carbonaceous aerosols and secondary inorganic ions dominate PM1 pollution, contributing over 85% to PM1 mass. Rural areas have higher concentrations of organic and elemental carbon compared to urban areas, with rural BrC light absorption coefficient being over five times higher than urban areas.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Organic
Ashish Kumar Dhara, Sayantan Maity, Basab Bijayi Dhar
Summary: This study introduces an efficient method for synthesizing substituted phenazines and phenoxazinones in water using a photoredox catalyst, yielding over 80%. The highly reactive intermediate was characterized by HR-MS technique.
Article
Materials Science, Multidisciplinary
Sajjad Tabar Maleki, Mohsen Babamoradi, Mojtaba Rouhi, Ali Maleki, Zoleikha Hajizadeh
Summary: In this study, halloysite nanotubes/polypyrrole/Fe3O4 (HPF) nanocomposites were synthesized and their microwave absorption properties were investigated. The results indicate that adding halloysite nanotubes as an additive can improve the adsorption properties of the nanocomposites.
Article
Chemistry, Multidisciplinary
Jae-Uk Kim, Young-Min Kang
Summary: Mn-Ti, Zn-Ti, and Zn-Zr substituted M-type Sr-hexaferrites were synthesized and their solubility, crystalline structure, and high-frequency properties were studied. Zn-Zr substitution resulted in significant lattice parameter changes and lower solubility compared to Mn-Ti and Zn-Ti substitutions, affecting ferromagnetic resonance frequency and electromagnetic wave absorption.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Jiqi Wang, Jianquan Ren, Qiang Li, Yifan Liu, Qiuyu Zhang, Baoliang Zhang
Summary: This paper reports on the preparation and performance evaluation of N-doped carbon microsphere composites with concavo-convex surfaces, showing excellent microwave absorbing properties at different frequencies for samples obtained by calcining at different temperatures.
Article
Nanoscience & Nanotechnology
Baoji Miao, Yange Cao, Qingsong Zhu, Muhammad Asif Nawaz, Jose Antonio Ordiozola, Tomas Ramirez Reina, Zhiming Bai, Junna Ren, Fengchun Wei
Summary: The development of modern microwave communication technology requires the resolution of signal crosstalk and electromagnetic interference (EMI) problems for better working frequency and transmission power of electronic systems. New absorbing materials such as MoS2/TiO2/Ti2CTx and MoS2/Ti2CTx composites meet the criteria of thin, strong, lightweight, and wideband for excellent absorbing performance. The MoS2/Ti2CTx composite, with an extreme reflection loss (RLmin) of -54.70 dB at a frequency of 7.59 GHz and a thickness of 3.39 mm, achieves a maximum effective absorption bandwidth (EABmax) of 4 GHz.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Materials Science, Ceramics
C. Le Paven, A. Ziani, F. Marlec, L. Le Gendre, F. Tessier, M. Haydoura, R. Benzerga, F. Chevire, K. Takanabe, A. Sharaiha
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Julie Carcreff, Francois Chevire, Elodie Galdo, Ronan Lebullenger, Antoine Gautier, Jean Luc Adam, David Le Coq, Laurent Brilland, Radwan Chahal, Gilles Renversez, Johann Troles
Summary: The study presents the fabrication of a microstructured optical fiber using a soft glass 3D printed preform, with a focus on a chalcogenide glass Te20As30Se50 known for its low temperature shaping capability and mid-infrared transmission. The negative curvature hollow core fiber obtained demonstrates multiple transmission bands in the 2-12 mu m range, which are validated through finite element-based simulations and coupled mode theory.
OPTICAL MATERIALS EXPRESS
(2021)
Article
Crystallography
Julie Carcreff, Francois Chevire, Ronan Lebullenger, Antoine Gautier, Radwan Chahal, Jean Luc Adam, Laurent Calvez, Laurent Brilland, Elodie Galdo, David Le Coq, Gilles Renversez, Johann Troles
Summary: This study explores a novel method for manufacturing chalcogenide optical components by evaluating the properties of chalcogenide glasses before and after 3D printing. The preliminary results obtained with various chalcogenide objects and components suggest the potential of this innovative 3D printing method for a wide range of applications.
Article
Materials Science, Multidisciplinary
Eduard Feldbach, Andreas Zerr, Luc Museur, Mamoru Kitaura, Geeth Manthilake, Franck Tessier, Veera Krasnenko, Andrei Kanaev
Summary: The electronic band structure of gamma-Ge3N4 was examined using spectroscopic techniques, showing potential as efficient photonic emitters with high thermal stability. The experimental results were supported by theoretical calculations, and the material's high conversion efficiency and robustness were compared with w-GaN, a basic material for commercial LED.
ELECTRONIC MATERIALS LETTERS
(2021)
Article
Chemistry, Applied
Kanemichi Muraoka, Miharu Eguchi, Osamu Ishitani, Francois Chevire, Kazuhiko Maeda
Summary: Hybrid materials constructed from defect fluorite-type Ln-Ta oxynitrides as the semiconductor component, combined with known Ag nanoparticle promoter and binuclear ruthenium(II) complex, have demonstrated efficient photocatalytic performance for CO2 reduction under visible light. Among the LnTaO(x)N(y) examined, TbTaOxNy showed the highest activity and selectivity towards formate under visible light conditions.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
M. Haydoura, R. Benzerga, C. Le Paven, L. Le Gendre, V Laur, A. Chevalier, A. Sharaiha, F. Tessier, F. Chevire
Summary: This study investigates the dielectric properties of ferroelectric ceramics STLTO with different chemical compositions, and successfully integrates them in Dielectric Resonator Antennas (DRA). The experimental results demonstrate that the chemical composition of synthesized STLTO ceramics significantly affects their dielectric performance, and the simulation of the antenna prototype shows the radiation potential of STLTO at lower frequencies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Erwan Leysour de Rohello, Yan Suffren, Odile Merdrignac-Conanec, Olivier Guillou, Christophe Calers, Francois Chevire
Summary: Mn2+ doped Ca1-xSrxCN2 phosphors were synthesized via solid-state reaction under NH3 atmosphere, showing optimal emission at 4%mol Mn2+ content and decreased luminescence efficiency with Sr2+ substitution for Ca2+.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
M. Haydoura, F. Marlec, C. Le Paven, R. Benzerga, L. Le Gendre, F. Chevire, F. Tessier, R. Seveno, A. Sharaiha
Summary: The structural and dielectric properties of thin films produced by reactive radiofrequency sputtering of a (Sr2Ta2O7)(100-x) (La2Ti2O7)(x) target with x = 1.65 were studied. It was found that the highest permittivities and tunabilities are associated with the pure and fully textured films. This was achieved for a 900 nm thick film deposited at T-s = 850 degrees C.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Inorganic & Nuclear
Louisiane Verger, Julien Trebosc, Benoit Baptiste, Eric Furet, Killian Denoue, Jiajie Zhang, Francois Chevire, David Le Coq, Laurent Calvez, Olivier Lafon, Olivier Hernandez
Summary: In this research, crystalline NaGaS2 has been synthesized using mechanochemistry, either through a one-step or two-step process. The study analyzes the advantages and disadvantages of both methods and demonstrates that the crystalline phase of NaGaS2 can be improved by modifying the annealing treatment.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Biomedical
Louis Chaigneau, Aurelien Perrot, Damien Brezulier, Jean-Francois Coulon, Francois Chevire, Ronan Lebullenger
Summary: Due to population ageing, the synthesis and optimization of biomaterials with desired physico-chemical characteristics are important in regenerative medicine. The use of 3D printing techniques has led to the manufacture of PLA-BG composite scaffolds, but the composite has lower mechanical strength possibly due to the ionic salting-out caused by BG. This study aims to counteract this by coating BG particles with a thin layer of gold, and evaluating the mechanical and biological characteristics of the 3D composite objects to preserve their bioactive nature.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
K. Aneb, H. Oudadesse, H. Khireddine, B. Lefeuvre, O. Merdrignac-Conanec, F. Tessier, A. Lucas
Summary: The modification of porosity and surface silanization are efficient methods to improve the physicochemical and biological properties of bioactive glass. The use of surfactant in the synthesis medium can pattern porosity and impact their in vitro bioactivity. Surface functionalization by silanization is a key method for grafting drugs or biomolecules to the glass surface. The study compared the effects of porosity modification and surface silanization on in vitro bioactivity of sol-gel-derived bioactive glasses.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Chinkit Tyagi, Corinne Lagrost, Vincent Dorcet, Franck Tessier, Bruno Fabre
Summary: This article presents a simple and convenient method for depositing carbon-embedded tungsten carbide electrocatalyst on nickel foam. By optimizing the sucrose concentration and reduction temperature, the best electrocatalytic efficiency for the hydrogen evolution reaction (HER) is achieved. The resulting electrocatalyst exhibits stability and efficiency in both acid and alkaline conditions.
ACS APPLIED ENERGY MATERIALS
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Julie Carcreff, Francois Chevire, Elodie Galdo, Ronan Lebullenger, Antoine Gautier, Jean-Luc Adam, David Le Coq, Laurent Brilland, Radwan Chahal, Gilles Renversez, Johann Troles
Summary: Chalcogenide glasses have been studied for various applications in the mid-infrared region due to their transparency and suitability for detecting optical signatures of molecules. A new method based on 3D printing process has been investigated to produce hollow chalcogenide glass preforms, which are then drawn into hollow-core fibers. The experimental results show a significant increase in transmission of the printed hollow-core fiber, opening up a promising avenue for the fabrication of chalcogenide MOFs, particularly for hollow core fibers.
OPTICAL COMPONENTS AND MATERIALS XVIII
(2021)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
