Article
Chemistry, Physical
Jia Xu, Xin Liu, Guotai Wang, Ting Luo, Jian Wang, Kechao Lu, Yuanzheng Yang
Summary: In this study, the effects of adding different ferromagnetic elements, metallic elements with strong non-metallic properties, and transition metal elements with large atomic radius on the crystallization behavior, magnetic properties, and ductility of Fe85Si0.5B9P4Cu0.5C0.1M0.9 alloys were systematically investigated. Through optimal heat treatments, nanocrystalline alloys exhibited excellent soft magnetic properties but further understanding of the microscopic mechanism of plastic deformation and achieving high toughness in amorphous alloys is crucial.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
X. S. Li, Z. Y. Xue, X. B. Hou, G. Q. Wang, X. Huang, H. B. Ke, B. A. Sun, W. H. Wang
Summary: A high ferromagnetic element content amorphous/nanocrystalline alloy system was synthesized with high saturation magnetization and low crystallization activation energy. These alloys are beneficial for reducing the processing cost of producing ferromagnetic nanocrystalline alloys and have a large annealing temperature window.
Article
Chemistry, Physical
R. Parsons, K. Ono, Z. Li, H. Kishimoto, T. Shoji, A. Kato, M. R. Hill, K. Suzuki
Summary: This study reviewed literature to determine the density of amorphous soft magnetic alloys and found it can be accurately described by a regression function. The change in density during amorphization and subsequent nanocrystallization was estimated to be between 0.5% and 3%, depending on the alloy composition. The difference in density between a crystalline precursor ingot and after amorphization by melt spinning was observed to vary between 2% and 3%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Physics, Applied
Jifeng Zhou, Junhua You, Keqiang Qiu
Summary: Fe-based amorphous/nanocrystalline alloys exhibit excellent soft magnetic properties and can be used in distribution transformers, transformers, reactors, and other devices. They are also green, energy-saving, and environmentally friendly.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Kaisheng Ming, Shuimiao Jiang, Xiaoyuan Niu, Bo Li, Xiaofang Bi, Shijian Zheng
Summary: The combination of high strength, ductility, and low coercivity in soft magnetic alloys can be achieved by introducing high-density magnetic nanoprecipitates.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Zhiguang Shi, Xuan Li, Xingcheng Xie, Jian Yang, Zhongkun Lin, Ruijun Cao, Tao Zhang
Summary: Fe-Co-P-B amorphous alloys with high FeCo contents (up to 87at%) were synthesized. The effects of Co on GFA, thermal stability, and magnetic properties were investigated. Fe87-xCoxP2B11 amorphous alloys have high magnetization and good bending ductility. The substitution of Fe by Co increases Curie temperature and coercivity, while applied tensile stress can reduce coercivity.
RARE METAL MATERIALS AND ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Wei Gao, Yaqiang Dong, Xingjie Jia, Liping Yang, Xubin Li, Shouding Wu, Ronglin Zhao, Hang Wu, Qiang Li, Aina He, Jiawei Li
Summary: Co4Fe2Al1.5Mn1.5 high-entropy alloy with exceptional soft magnetic properties was investigated. It exhibited the highest saturation magnetization strength (161.3 emu g -1) reported for magnetic HEAs, low coercivity (1.9 Oe), high electrical resistivity (173 mu S2 cm), and superior thermal stability up to 600 degrees C. Microstructure of B2 nanoparticles in a DO3 matrix phase and the transition of Mn from antiferromagnetism to ferromagnetism with the assistance of Al contributed to these properties. This study paves the way for the development of soft magnetic HEAs with promising applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Xuesong Li, Jing Zhou, Laiquan Shen, Baoan Sun, Haiyang Bai, Weihua Wang
Summary: This study achieves excellent comprehensive soft magnetic properties with high saturation magnetic flux density and low coercivity through the construction of a transitional microstructure in an FeCo-based alloy.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xingdu Fan, Tao Zhang, Weiming Yang, Junhua Luan, Zengbao Jiao, Hui Li
Summary: The Fe81.3Si4B13-xPxCu1.7 soft magnetic alloys with high Cu and proper P elements addition were synthesized to ensure the amorphous forming ability (AFA) and expand the crystallization window (CW). It was found that an atomic ratio of P/Cu around 3 is advantageous for AFA, and a small amount of P addition promotes the precipitation of alpha-Fe grains. High Cu concentration expands the annealing temperature (Ta) window, while proper P addition enlarges the annealing time (ta) window. The successful synthesis of the Fe81.3Si4B8P5Cu1.7 soft magnetic alloy with a large Ta window of up to 130 degrees C and ta window of 90 min is a breakthrough for nanocrystalline alloys with high saturation magnetization.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
T. Prabhakaran, R. V. Mangalaraja, F. Beron, J. A. Jimenez, Juliano C. Denardin, T. Arun, Ali Akbari-Fakhrabadi
Summary: Developing economically soft magnetic materials for high-performance electrical devices is crucial. In this study, the structural and magnetic properties of thermally reduced soft CuFe nanoparticles were examined, showing high saturation magnetization and stable performance, making them suitable candidates for magnetic applications.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Materials Science, Ceramics
M. Alouhmy, R. Moubah, Z. Yamkane, M. Abid, H. Lassri
Summary: The effects of hydrogen implantation on the magnetic properties of amorphous Fe88.4Zr11.6Hx films were studied, showing that the Curie temperature increases and coercivity decreases with increasing hydrogen content. The local random anisotropy constant decreases with higher hydrogen concentration, and the ferromagnetic correlation length increases significantly. The local anisotropy extracted from coercivity fits well with the results obtained using random magnetic anisotropy approach.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Engineering, Electrical & Electronic
Tan Wang, Jixiang Chen, Ran Wei, Chen Chen, Fushan Li
Summary: By adjusting the composition and quenching conditions, a novel amorphous structure with ultra-fine nano alpha-Fe grains in the surface crystallization layer was successfully fabricated. The surface crystallization layer significantly impacts the soft magnetic properties of the FeMnCuMoCPSiB amorphous alloy, showing excellent performance with high B-s, low H-c, and high mu(i). The presence of nanoscale surface precipitation in the alloy enhances its soft magnetic properties, outperforming widely used commercial soft magnetic materials like METGLAS 2605 and showing potential for engineering applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Lingxiang Shi, Xinyu Hu, Yehui Li, Guangtong Yuan, Kefu Yao
Summary: Developing Fe-based amorphous alloys with high saturation flux density has been a challenging topic, with metalloid elements playing a key role. Fe83-85(B, C, Si)(14-16)P(1) amorphous alloys with high B-s and low H-c were successfully developed, with Fe content and metalloids having strong interrelated effects on the magnetic properties. The effects of metalloids on B-s are shown to be more significant than that of Fe in Fe-rich amorphous alloys, with the effects depending largely on Fe content.
Article
Chemistry, Physical
Lingjie Lu, Yimin Guo, Xuan Li, Tao Zhang
Summary: The atomic structure, soft magnetic property, and bending ductility of Fe-P-C-B-Si amorphous alloys were studied by changing the Si content. Addition of a small amount of Si effectively increased the Curie temperature and saturated magnetization. The annealed amorphous alloys showed further improvement in magnetization and good bending ductility. These findings suggest that Fe-P-C-B-Si amorphous alloys have the potential to replace Si-Fe alloys in magnetic and electric devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Z. G. Zheng, Y. B. Chen, J. Wei, X. Wang, Z. G. Qiu, D. C. Zeng
Summary: The effects of Fe content and annealing temperature on the microstructure, thermal stability, and soft magnetic properties of Fe-rich alloys were investigated. Increasing Fe content up to 85% allowed the formation of a single amorphous phase, but beyond that, crystalline phase appeared. Higher Fe content resulted in a larger crystallization temperature interval, contributing to the process of heat treatment and preparation of amorphous/nanocrystalline soft magnetic materials. The optimum annealing treatment at 430℃ for 10 minutes yielded a high saturation magnetization of 208 emu/g.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
C. Liu, A. Inoue, F. L. Kong, E. Zanaeva, A. Bazlov, A. Churyumov, S. L. Zhu, F. Al-Marzouki, R. D. Shull
Summary: Soft magnetic Fe-B-Si-C-Cu amorphous alloys demonstrate high saturation magnetization, low coercivity, high permeability, and hardness. By designing the microstructure carefully, even higher hardness and stability can be achieved.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Y. X. Wan, H. S. Li, C. J. Chen, F. L. Kong, B. L. Shen, A. Churyumov, E. Shalaan, A. A. Al-Ghmadi, W. J. Botta, A. Inoue
Summary: The study investigated the compositional influence on the formation of clustered glassy structure in Zr-based metallic glasses. Results showed that suitable contents of Co and Ag elements play a dominant role in the formation of the clustered glass. Glasses with clustered structure exhibit higher Vickers hardness and thermal stability, providing useful criteria for the synthesis of elevated-temperature strength metallic glasses in the future.
Article
Materials Science, Ceramics
A. Al-Ojeery, E. Ibrahim, E. Shalaan, A. Inoue, F. Al-Marzouki
Summary: A nano-porous glassy Zr60Al5Ni30Pd5 skeleton structure alloy was prepared by electrochemical etching treatment, showing enrichment of Ni and Pd elements on the nano-porous surface, leading to enhanced reaction activity and corrosion resistance.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
C. Liu, A. Inoue, F. L. Kong, S. L. Zhu, E. Shalaan, A. Al-Ghmadi, A. L. Greer
Summary: Zr70-76 Al7-7.5Ni13-15Cu2Ag2-5 glassy alloys were prepared by melt-spinning and copper-mold casting, showing excellent mechanical properties and plasticity. The 70-72Zr and 74Zr alloys were cast as bulk rods with glass and [glass + beta-Zr +omega-Zr] phases, while the 76Zr alloy was prepared as a thick ribbon. The Zr-rich glassy ribbons also exhibited good bending plasticity after annealing.
Article
Materials Science, Multidisciplinary
J. Ding, A. Inoue, F. L. Kong, S. L. Zhu, Y. L. Pu, E. Shalaan, A. A. Al-Ghamdi, A. L. Greer
Summary: Multicomponent alloys of Zr50M50, Zr-50(M,Ag)(50), and Zr-50(M,Pd)(50) can be melt-spun to obtain amorphous ribbons with good bending plasticity and tensile properties. Cold-rolling and tension induce precipitation of different phases.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
C. Liu, A. Inoue, F. L. Kong, S. L. Zhu, E. Shalaan, A. Al-Ghmadi, A. L. Greer
Summary: The glass-forming ability, thermal stability, and mechanical properties of new Zr-rich alloys were evaluated. Melt-spinning produced glassy and amorphous phases, which showed good bending plasticity after annealing. The precipitate dispersions in the amorphous phases contributed to high strength and plastic strain. These findings are significant for the engineering application of Zr-based bulk metallic glasses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Ahmed Alshahrie, Bassim Arkook, Wafaa Al-Ghamdi, Samah Eldera, Thuraya Alzaidi, Hassan Bamashmus, Elsayed Shalaan
Summary: In this research, metallic glass-based pseudocapacitive material was tested for electrochemical hydrogen storage. Nanoporous glassy alloy was prepared and its storage capacity and stability were evaluated.
Article
Chemistry, Analytical
Mazin Zamzami, Samer Alamoudi, Abrar Ahmad, Hani Choudhry, Mohammad Imran Khan, Salman Hosawi, Gulam Rabbani, El-Sayed Shalaan, Bassim Arkook
Summary: This study presents an electrochemical method for directly identifying unlabeled Gram-negative bacteria without the need for additional substances. The design of the electrode geometry plays a crucial role in the detection sensitivity of Gram-negative bacteria. The aim is to find the most suitable electrode geometry to detect and quantify bacterial cells in normal saline solutions.
Article
Engineering, Electrical & Electronic
Asmaa Mudhaffar, Badriah Sultan, ElSayed Shalaan, Hala Al-Jawhari
Summary: The switching characteristics of copper oxide (Cu2O) thin-film transistors (TFTs) were improved by buffering both sides of the channel with a thin layer of sputtered molybdenum trioxide (MoO3). The top MoO3 layer controlled the back-channel phase and reduced the drain off-current, while the bottom MoO3 film acted as a passivation layer at the semiconductor/dielectric interface, reducing the interfacial states density D-it. By optimizing the nitrogen doping conditions and using the bilayer channel scheme, the switching characteristics were further enhanced.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
M. Y. Al-Harbi, A. M. Abdel-Daiem, E. Shalaan
Summary: An efficient energy storage device requires a conductive electrode with high strength, hardness, elasticity, and corrosion resistance. Metallic glass alloys possess these properties, but their small surface area limits their use. Electrochemical dealloying is used to increase the surface area and enhance storage properties by creating metal ligands and pore channels. In this study, Zr-based metallic glass alloy electrodes prepared by electrochemical dealloying were investigated and shown to have good corrosion resistance and improved storage properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Asmaa Al-Rasheedi, Essayed Shalaan, Ali Abdeldaim Hassaneen, Mohammed Salah Aida
Summary: Zinc oxide nanorods and Simonkolleite nanodisks were successfully synthesized using zinc chloride as a zinc source salt via hydrothermal method. The effect of zinc salt molarity on the morphology of the synthesized nanostructures was investigated. XRD, SEM, UV-visible optical transmittance, and photoluminescence were used for characterization. The results showed that the morphology of the synthesized nanostructures was significantly influenced by the molarity of zinc chloride. Increasing zinc salt molarity above 0.01 M resulted in pure simonkolleite nanodisks, while ZnO NRs were formed at low concentrations.
Article
Materials Science, Multidisciplinary
Fang Wang, Akihisa Inoue, Fanli Kong, Shengli Zhu, Chunxiao Xie, Chengliang Zhao, Walter Jose Botta, Chuntao Chang
Summary: A glassy phase with glass transition was formed in a wide range of B content in (Co0.75Cr0.125Mo0.125)100-xBx alloys. The appearance of glass transition at low metalloid content of 12%B is unique among Co-, Fe-, and Ni-based alloys. The Co-based glassy alloy shows a crystallization process through three stages, and the appearance of glass transition is due to the rearrangement of constituent elements. The Co-based bulk glassy alloy with high strength, ultrahigh hardness, and high oxidation resistance is promising for future high hardness and heat-resistant materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
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)
