Article
Chemistry, Multidisciplinary
Lev A. Trusov, Anastasia E. Sleptsova, Jingtong Duan, Evgeny A. Gorbachev, Ekaterina S. Kozlyakova, Evgeny O. Anokhin, Artem A. Eliseev, Maxim A. Karpov, Alexander V. Vasiliev, Oleg A. Brylev, Pavel E. Kazin
Summary: A method to prepare nonsintered single-domain nanoparticles of chromium-substituted hexaferrite via crystallization of glass in the system SrO-Fe2O3-Cr2O3-B2O3 was successfully demonstrated, showing plate-like hexaferrite nanoparticles with diameters changing from 20 to 190 nm. Chromium substitution significantly improved the coercivity of the particles, ranging from 334 to 732 kA m(-1), providing a new strategy for producing high-coercivity ferrite nanomagnets.
Article
Materials Science, Ceramics
Sunday J. Olusegun, Magdalena Osial, Agnieszka Majkowska-Pilip, Kinga Zelechowska-Matysiak, Dorota Nieciecka, Michal Krajewski, Marek Pekala, Pawel Krysinski
Summary: Despite commendable efforts in fighting cancer, it remains a significant global public health concern. In this study, we synthesized Sr2+ and Gd3+ doped magnetite nanoparticles for magnetic hyperthermia and drug delivery applications. Characterization revealed the formation of magnetite nanoparticles with a size of 10 nm and spherical shapes of approximately 12 nm. The Fe3O4@Gd nanoparticles showed a higher BET-specific surface area than Fe3O4@Sr nanoparticles. The heat generation in an alternating magnetic field was slower in Fe3O4@Sr@CA@5-flu compared to Fe3O4@Gd@CA@5-flu.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Ruoshui Liu, Lichen Wang, Xiang Yu, Zhiyi Xu, Huayang Gong, Tongyun Zhao, Fengxia Hu, Baogen Shen
Summary: The study demonstrates the enhancement of magnetocrystalline anisotropy (MA) in La-Co co-substituted strontium hexaferrite (La-Co SrM) due to the joint effect of Fe2+ and Co2+ ions. Co-substituted strontium hexaferrite SrFe12-xCoxO19 (Co-SrM) single crystals were grown to investigate the anisotropy of Co2+ single ions. The solubility of Co in this preparation condition is limited to 0.31, and for 0.03 < x <= 0.11, a 19% enhancement in uniaxial magnetic anisotropy field HA is observed, with only a 7% loss in saturation magnetization MS at 5 K. The enhanced HA of Co-SrM is even higher than that of La-Co SrM, making it suitable for use as permanent magnets in this concentration range. However, for x = 0.31, planar anisotropy is observed at 5 K. The potential nonlinear magnetic structure of Co-SrM remains to be discovered for magnetoelectric effects. This work serves as a significant complement to the magnetocrystalline anisotropy study of La-Co SrM.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Kursat Icin, Sultan Ozturk, Damla Dilara Cakil, Sefa Emre Sunbul, Ibrahim Ergin, Bekir Ozcelik
Summary: This study produced strontium hexaferrite powders using a mechanochemical process, and found that the magnetic properties can be changed by varying the annealing temperature. The most suitable annealing temperature was determined to be 975°C, leading to improved magnetic performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
V. R. R. Aquino, J. C. R. Aquino, J. A. H. Coaquira, A. F. Bakuzis, M. H. Sousa, P. C. Morais
Summary: This study successfully fabricated high quality monocrystallite magnetite (Fe3O4) nanorings through a wet and mild-temperature-mediated chemical route, as an alternative to traditional solid-solid annealing methods. It also attempted to fabricate ferrite-based nanorings with different stoichiometry through metal-ion doping and solid-solid reaction by annealing hematite nanorings. The nanoring morphology was confirmed by electron microscopy, and magnetic vortex signature was observed in magnetic hysteresis cycle measurements.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Maryam Shaterian, Ali Mohammadi-Ganjgah, Mehdi Balaei
Summary: This study synthesizes strontium hexaferrite (SrFe12O19) nanostructures using new nanostructured adsorbents and investigates their performance as hydrogen storage materials. Electrochemical results show that the maximum hydrogen storage capacity of the nanostructures is about 3100 mAh/g.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Marian Stingaciu, Durgamadhab Mishra, Cesar de Julian Fernandez, Riccardo Cabassi, Anna Zink Eikeland, Mogens Christensen, Stefano Deledda
Summary: The structural and magnetic properties of Sr0.67Ca0.33Fe9Al3-xCrxO19 submicrometric powders with substitution levels ranging from x = 0 up to x = 3, prepared by sol-gel synthesis method, have been investigated. The Ca-Al-Cr substituted strontium hexaferrite shows a correlation between the structure and magnetic properties, and the role of particle size in maximizing coercivity properties is discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Y. Ahmed, A. Paul, P. Hribar Bostjancic, A. Mertelj, D. Lisjak, D. Zabek
Summary: Recently discovered barium hexaferrite-based nanoplatelets form a ferromagnetic-ferrofluid with interesting magnetic properties. A surfactant assisted manufacturing method for an ethylene glycol based ferrofluid using barium hexaferrite nanoplatelets was described. The manufactured ferrofluid exhibits improved thermal properties compared to previously used butanol based ferrofluids.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Crystallography
Heba Kahil, Ahmed Faramawy, Hesham El-Sayed, Adel Abdel-Sattar
Summary: This study investigates the production of gadolinium-doped iron oxide nanoparticles for use in magnetic fluid hyperthermia. The results show that gadolinium ions have a low solubility limit in the iron oxide lattice, causing distortion in the maghemite phase and formation of other phases. The addition of gadolinium results in lower saturation magnetization values, but the sample doped with gadolinium has the highest potential to produce heat at a frequency of 198 kHz.
Article
Physics, Applied
Zs Iszaly, I Gresits, I. G. Marian, Gy Thuroczy, O. Sagi, B. G. Markus, F. Simon, I Nandori
Summary: Magnetic hyperthermia is an adjuvant therapy that uses magnetic nanoparticles to transfer energy and increase the local temperature of the human body. The combination of static and alternating magnetic fields can enhance this localization effect. Research shows a significant polarization effect in superlocalization for small frequencies and large field strengths, which is important for practical applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Dmitry Borin, Robert Mueller, Stefan Odenbach
Summary: This study experimentally examines the influence of an external magnetic field on the shear flow behavior of barium hexaferrite nanoplates based magnetic fluid. The results suggest that the shape of magnetic nanoparticles plays a key role in magnetoviscous effects.
Article
Engineering, Electrical & Electronic
Max Ho, Srinivas P. M. Nagaraja, Rustu Umut Tok, Aysan Rangchian, Pirouz Kavehpour, Yuanxun Ethan Wang, Rob Candler
Summary: Millimeter-wave components often use magnetic fields to provide unidirectional signal transmission, but face difficulties in miniaturization. Hexaferrite materials are selected for their strong magnetocrystalline anisotropy (MCA) and low conductance, but integrating them with semiconductor substrates is challenging. Additive manufacturing using a composite of strontium hexaferrite particles and photoresist has been developed to overcome this challenge. The 3-D printed composite has demonstrated magnetic anisotropy, and the self-biasing field has been experimentally characterized.
IEEE TRANSACTIONS ON MAGNETICS
(2023)
Article
Materials Science, Ceramics
I Anila, B. B. Lahiri, Jacob Mathew, John Philip
Summary: The study demonstrates the viscosity-independent magnetic hyperthermia properties of chitosan-coated ultrafine CoFe2O4 MNPs, showing higher field-induced heating efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Marine
Zhigang Zeng, Xiaoyuan Wang, Xuebo Yin, Shuai Chen, Haiyan Qi, Chen-Tung Arthur Chen
Summary: The isotopic compositions and concentrations of various substances in vent fluids were analyzed to understand the water-rock interaction and origin of the fluids in hydrothermal systems. The results showed that the fluids primarily derived from seawater, while calcium and chlorine remained in the deep reaction zone during the fluid-andesitic rock interaction.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Inorganic & Nuclear
M. Suganya, J. Kishor Kumar, S. Anand, K. Mohamed Racik, S. Muthupandi, S. Muniyappan, S. Nandhini
Summary: This work presents the supercapacitor performance of Z-type barium hexaferrite nanoplatelets prepared by citrate-nitrate auto combustion method. The study confirms the excellent magnetic and electrochemical properties of these nanoplatelets, suggesting their potential use in energy storage devices.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Ruipeng Zhong, Ruoyu Hong
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Fangfang Wang, Maochuan Gao, Ruoyu Hong, Xuesong Lu
APPLIED SCIENCES-BASEL
(2020)
Article
Nanoscience & Nanotechnology
Yi Lin, Ruoyu Hong, Huaiyin Chen, Di Zhang, Jinjia Xu
JOURNAL OF NANOMATERIALS
(2020)
Article
Chemistry, Physical
Shiwei Ma, Yunyun Huang, Ruoyu Hong, Xuesong Lu, Jianhua Li, Ying Zheng
Summary: The study focused on modifying zinc oxide (ZnO) nanoparticles using argon and hydrogen plasma, resulting in improved catalytic degradation performance on Rhodamine B. The treated ZnO exhibited significantly enhanced photocatalytic activity and stable reaction performance.
Article
Materials Science, Multidisciplinary
Shuanqiang Yang, Shu Zhu, Ruoyu Hong
Article
Chemistry, Physical
Zhenzhen Jia, Ruoyu Hong
Summary: The study fabricated an organic-inorganic hybrid coating using BADGE epoxy resin and silica nanoparticles, with the addition of ZnO nanoparticles to enhance photocatalytic degradation properties. Experimental results demonstrated excellent anti-corrosion performance and photo-degradation efficiency of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Electrochemistry
Fangfang Wang, Xing Zhang, Ruoyu Hong, Xuesong Lu, Yuan Zhu, Ying Zheng
Summary: Crystalline silicon nanoparticles coated with an amorphous silicon layer were prepared by continuously pyrolysing a mixture of silane and hydrogen in a non-thermal arc plasma reactor. The role of hydrogen in controlling the thickness of the amorphous silicon layer and improving the electrochemical performance of the silicon anode was investigated through experiments. Introducing a three-component polymer binder effectively tolerated the volume expansion of silicon, resulting in an excellent electrochemical performance of the silicon anode.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xingtian Chen, Di Zhang, Huaiyin Chen, Ruoyu Hong
Summary: A new ternary core-shell composite, CIP@Fe3O4@PANI, has been successfully prepared with superior magnetic properties, oxidation resistance, high saturation magnetization, making it a promising candidate for rapid development of broadband shielding and anticorrosive materials.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Yang Li, Jinlong Zhang, Ruoyu Hong, Ning Liu
Summary: Li-rich cathode materials have high specific capacities, but suffer from phase transition and capacity loss during the charge and discharge cycles. Surface modification with Li2MnO3 can effectively address this issue, improving the structural and cycle stability of the material.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Polymer Science
Yunyun Huang, Borui Zhang, Jian Wu, Ruoyu Hong, Jinjia Xu
Summary: A new type of coating filler consisting of graphene oxide/polyaniline/polydopamine (GO-PANI-PDA) nanocomposites has been successfully synthesized and shown to have excellent corrosion resistance performance, making it a promising candidate for the rapid development of broadband shielding and anticorrosive materials.
Article
Materials Science, Multidisciplinary
Rui Zhong, Xuesong Lu, Feng Zheng, Jinlong Zhang, Ruoyu Hong
Summary: Nitrogen doping was achieved in graphene through non-thermal plasma synthesis using CH4 as the carbon source and N-2 as the nitrogen source. The nitrogen content was approximately 1.19 at.%. The addition of H-2 and CO2 as carrier gases influenced the nitrogen doping type and content. This method has potential for large-scale production.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jinlong Zhang, Dai Zhang, Zhenshuai Wang, Feng Zheng, Rui Zhong, Ruoyu Hong
Summary: In this paper, a spherical lithium-rich manganese-based cathode material Li1.2Mn0.54Ni0.13Co0.13O2 was prepared by co-precipitation method, and aluminum fluoride (AlF3) was uniformly coated on the surface of the material. The AlF3 coating significantly improved the specific capacity of the cathode material, reaching 283.3 mAh/g, and showed a retention rate of 84.4% after 200 charge-discharge cycles. AlF3 can maintain the stability of the cathode material and inhibit unwanted transformations, ensuring high specific capacity and cycle stability.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Xingtian Chen, Shumin Du, Ruoyu Hong, Huaiyin Chen
Summary: The hydrophobic nanocomposites of reduced graphene oxide (RGO) and Fe3O4 (RGO/Fe3O4) were prepared through a one-pot process under alkaline conditions. The microwave absorption performance of RGO/Fe3O4 nanocomposites was analyzed and found to have better absorbing performance than pristine Fe3O4 nanoparticles due to the synergistic effect of Fe3O4 and RGO. The RGO/Fe3O4 nanocomposites with a thickness of 2 mm showed a maximum reflection loss (RL) of -45.7 dB at 13.3 GHz and a bandwidth (RL < -10 dB) ranging from 11.5 to 16.5 GHz, indicating their potential application in high-performance electromagnetic microwave absorbing.
Article
Chemistry, Physical
Zhenshuai Wang, Xingyang Bao, Dai Zhang, Zhineng Sun, Xuesong Lu, Ruoyu Hong
Summary: The separation and purification of kish graphite is crucial for its high value and comprehensive utilization. By utilizing water washing dust removal, magnetic separation, and acid leaching purification, kish flake graphite (KFG) can be effectively enriched and purified from low-cost industrial kish graphite. The purified KFG has suitable recovery (57.34%), high fixed carbon content (99.38%), low ash content (0.62%), and exhibits excellent electrochemical performance as a cathode material for aluminum ion batteries (AIBs) with high specific capacity, outstanding rate capability, and superior long-term cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Shuanqiang Yang, Zhenzhen Jia, Jinjia Xu, Ruoyu Hong
Summary: GPTMS-TEOS hybrid coatings were successfully prepared using GPTMS and TEOS as raw materials and DETA as a curing agent and catalyst at room temperature. The hybrid coating contained amorphous SiO2 and had a significant impact on the coating performance. The best corrosion resistance was achieved with a moderate DETA content (NH:epoxy ratio equivalent to 1:1), showing a third-order magnitude increase compared to carbon steel.
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)
