Article
Chemistry, Physical
Shipra Bajpai, Kunwar Pratap Singh, Alok Bhadauria, T. Venkateswaran, Tapas Laha, Anish Upadhyaya, Kantesh Balani
Summary: In this study, the wettability of diborides in contact with a filler layer was evaluated using a powder-based approach. The results showed that surface roughness affects the spreading of molten Ni on the diboride surface, and the addition of hydrogen gas improves the wettability. Successful brazing of the diboride composites with a Ni interlayer resulted in microstructural inhomogeneity, but the lower interfacial residual stresses provided structural integrity between the ceramic and metal layers.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Iwona Sulima, Pawel Hyjek, Marcin Podsiadlo, Sonia Boczkal
Summary: This study presents the effect of zirconium diboride (ZrB2) and titanium diboride (TiB2) on the microstructure and physical, mechanical, and tribological properties of composites based on 316 L steel. The amount of each reinforcing phase added to the base alloy was 5 wt% and 10 wt%. The composites were fabricated using the SPS process. The results demonstrate that the weight fraction of the reinforcing phase influences the physical, mechanical, and tribological properties of the sintered composites. The addition of TiB2 effectively increases the hardness and compressive strength of the composites, while introducing ZrB2 improves the wear resistance of the composites.
Article
Materials Science, Ceramics
Eric W. Neuman, Matthew Thompson, William G. Fahrenholtz, Gregory E. Hilmas
Summary: Zirconium diboride ceramics were prepared with additions of up to 50 vol.% TiB2 and formed solid solutions. The addition of TiB2 resulted in decreased grain size and thermal conductivity. At high temperatures, the electron contribution to thermal conductivity was influenced by the addition of TiB2.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Eric W. Neuman, William G. Fahrenholtz, Gregory E. Hilmas
Summary: ZrB2 was mixed with 0.5 wt% carbon and up to 10 vol% ZrC and densified by hot-pressing at 2000 degrees C. The resulting dense ceramics exhibited reduced ZrC content and residual carbon, smaller ZrB2 grain sizes, larger ZrC cluster sizes, increased elastic modulus, hardness, toughness, and flexure strength with increasing ZrC content. The strength-limiting flaw was identified as ZrB2 grain pullout.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Multidisciplinary Sciences
Hua Xie, Mingde Qin, Min Hong, Jiancun Rao, Miao Guo, Jian Luo, Liangbing Hu
Summary: High-entropy ceramics and their composites have excellent properties, but their unique characteristics make it difficult to sinter them. This study presents a rapid liquid phase-assisted ultrahigh-temperature sintering strategy, successfully preparing a high-entropy metal diboride/boron carbide composite with high hardness.
Article
Materials Science, Ceramics
Anna N. Dorner, Frederic Monteverde, William G. Fahrenholtz, Gregory E. Hilmas
Summary: In this study, a solid-state formation mechanism for core-shell microstructures in (Zr,Ta)B-2 ceramics and ZrB2-TaB2 diffusion couples is proposed, and it is demonstrated that core-shell microstructures can be developed through Ta diffusion along ZrB2 grain boundaries and lattice diffusion of Ta into ZrB2.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Yashpal Gupta, B. Venkata Manoj Kumar
Summary: This study investigates the friction and wear of spark plasma sintered ZrB2-SiC composites in dry unlubricated conditions against different counterbodies. It is found that composites with higher SiC content exhibit lower friction and wear, and the thermal conductivity of the counterbody influences the friction and wear of the composites.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
S. Dinesh Kumar, M. Ravichandran, A. Jeevika, B. Stalin, C. Kailasanathan, A. Karthick
Summary: A new class of aluminium alloy matrix composites reinforced with ZrB2 particles was developed using the bottom pouring type stir casting process. The addition of ZrB2 particles improved the mechanical and corrosion behaviors of the composites. Through electrochemical assessments and SEM analysis, the homogeneous distribution of ZrB2 particles and the enhanced corrosion resistance of the composites were demonstrated.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Hu-Lin Liu, Ji-Xuan Liu, Wei-Chao Bao, Fang-Fang Xu, Guo-Jun Zhang
Summary: ZrB2-based ceramics containing SiC and/or ZrC were prepared via hot-pressing sintering. The study revealed that the introduction of ZrC led to more orderly arrangement of atoms at ZrB2-ZrB2 grain boundaries and a decrease in the percentage of rounded grain boundaries. Additionally, the atomic arrangement at ZrB2-ZrC interfaces satisfies a unique orientation relationship.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Ceramics
Leyla Yanmaz, Filiz Cinar Sahin
Summary: Square-shaped monolithic B4C and B4C-ZrB2 composites were produced using SPS method. The addition of 5, 10, 15 vol% ZrB2 had an effect on the densification, mechanical and microstructural properties of boron carbide. The density of B4C increased with increasing volume fraction of ZrB2 and the density differences in different regions of the sample decreased. The addition of ZrB2 enhanced the hardness and fracture toughness of the composites compared to monolithic B4C. The B4C-15 vol% ZrB2 composite exhibited superior properties with a hardness of 33.08 GPa and Vickers indentation fracture toughness of 3.82 MPa·m1/2.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Jun Young Kim, Hongliang Zhang, Jianqi Xi, Izabela Szlufarska
Summary: Binary and ternary transition metal borides have distinct properties, but defect properties have been rarely studied. Using first-principles calculations, the researchers investigated the structural effects on the defect recovery processes in MB and MAB phases. The study provides insights into the selection of materials for designing applications where defect recovery processes are important.
CHEMISTRY OF MATERIALS
(2022)
Article
Engineering, Chemical
Love Dashairya, Preeti Sharon Kispotta, Yogendra Mahton, Ekta Kumari, Ankit Kumar, Partha Saha
Summary: This study presents the development of a zirconium diboride modified polyurethane sponge, prepared through a dip coating technique and functionalized with octadecyl trichlorosilane for superhydrophobicity. The sponge shows great potential in removing oil/water, oil-water mixtures, and wastewater containing oil and organic solvents.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Thermodynamics
Morteza Savaripour, Younes Komachi
Summary: The degradation of cement products at high temperature was studied with different amounts of zirconium diboride nanoparticles (0, 0.5, 1, 3, and 5 mass%) with the nano-filling effect. The incorporation of ZrB2 nanoparticles in the cement matrix significantly improved the thermal protection of the composite at high temperature, with a mass loss of 6% after 30 min at 1000 celcius. ZrB2 converted to ZrO2 and B2O3 to protect the surface from oxygen penetration by cutting off the channels.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Nuclear Science & Technology
Mustafa J. Bolukbasi, Simon C. Middleburgh, Scott Vrtiska, William E. Lee
Summary: This study investigates a novel concept of Discrete Burnable Absorber Pins (DBAP) containing ZrB2 and UB2, which have the potential to improve fuel efficiency and fuel cycle economy. The use of these pins can increase reactivity at the end of fuel life, attributed to the change in Pu-239 breeding near the burnable absorbers.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Nuclear Science & Technology
Mustafa J. Bolukbasi, Simon C. Middleburgh, Scott Vrtiska, William E. Lee
Summary: Improvements in fuel efficiency and economy are crucial for nuclear power reactors. Burnable absorbers (BA) are being developed to enhance fuel cycle flexibility and mitigate performance drawbacks. This study investigates a novel concept - Discrete Burnable Absorber Pins (DBAP) containing ZrB2 and UB2, which show great potential for fuel efficiency and economy. It is observed that the use of DBAP leads to increased reactivity at the end of fuel life due to changes in Pu-239 breeding near the BA.
PROGRESS IN NUCLEAR ENERGY
(2022)
Biographical-Item
Thermodynamics
Luis A. Perez-Maqueda, Concepcion Real, Francisco J. Gotor, Maria D. Alcala, Jiri Malek, Nobuyoshi Koga
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2020)
Article
Construction & Building Technology
Siamak Imanian, Maisam Jalaly, Asghar Habibnejad Korayem, Ramezan Ali Taheri
Summary: Carbon nanotubes (CNTs) have potential as components of high-performance cementitious composites, but face challenges of agglomeration, poor dispersion, and weak interaction with the cement matrix. A method using magnetite nanoparticles to increase the interaction between CNTs and the cement matrix was investigated, resulting in improved mechanical properties of the nanocomposite-reinforced cements.
ADVANCES IN CEMENT RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Jesus E. Gonzalez, Gabriela de Armas, Jeidy Negrin, Ana M. Beltran, Paloma Trueba, Francisco J. Gotor, Eduardo Peon, Yadir Torres
Summary: Ti6Al4V samples obtained by selective laser melting were treated with acid etching, chemical oxidation, and thermochemical processing to observe the effects on surface features. Acid etching temperature had a greater influence on surface characteristics than time. The surfaces displayed nanostructures after the full treatment process, enhancing bioactivity and biomechanics fixation.
Article
Chemistry, Multidisciplinary
Francisco J. Garcia-Garcia, Maria J. Sayagues, Francisco J. Gotor
Summary: This study proposed a mechanochemical route for synthesizing the PrBaMn2O5+delta (PMBO) double layered perovskite phase, achieving the desired phase through high-energy milling combined with high-temperature annealing in air. The obtained phase showed high electrical conductivity in a reducing atmosphere, making it an excellent candidate for solid oxide fuel cell (SOFC) electrodes. The microstructural characterization confirmed the formation of the intended PrBaMn2O5+delta phase.
Article
Materials Science, Multidisciplinary
Mohammad Ali Abdol, Sadegh Sadeghzadeh, Maisam Jalaly, Mohammad Mahdi Khatibi
Summary: The efficiency of a multi-layer graphene membrane in desalination process is influenced by factors like pore size and pressure. Increasing the number of layers can stop the water flow, while reducing ion concentration in the feed area helps to increase water transfer rate.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
M. A. Avil, F. J. Gotor
Summary: Solid solution samples of Mn2+-doped ZnSxSe1-x were synthesized through a mechanically-induced self-sustaining reaction process. The band-gap energy of the samples was controlled by changing the stoichiometry of the solid solution. However, an efficiency loss was observed with increasing Se content.
Article
Chemistry, Physical
Hossein Minouei, Mehdi Kheradmandfard, Mohsen Saboktakin Rizi, Maisam Jalaly, Dae-Eun Kim, Sun Ig Hong
Summary: The high-entropy spinel thin film (HESTF) of (CrMnFeCoNi)3O4 was successfully formed for the first time, showing a dual spinel structure and increased hardness and elastic modulus. The material exhibited ferrimagnetic properties with high blocking and Curie temperatures.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Abbas Moghim, Maisam Jalaly, Sadegh Sadeghzadeh
Summary: In the first stage of this work, a master nanocomposite of niobium carbide (NbC)-Cu was synthesized using a mechanically induced magnesiothermic combustion method. In the second stage, the NbC-Cu nanocomposite powder was mixed with pure copper powder to prepare Cu-based nanocomposite with different volume fractions of NbC. The final nanocomposite powder was sintered using spark plasma sintering method. The density of the nanocomposite specimens decreased with increasing NbC content, while the microhardness increased.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ricardo Chavez-Vasconez, Sheila Lascano, Sergio Sauceda, Mauricio Reyes-Valenzuela, Christopher Salvo, Ramalinga Viswanathan Mangalaraja, Francisco Jose Gotor, Cristina Arevalo, Yadir Torres
Summary: Commercially pure titanium grade IV with a bimodal microstructure is a promising material for biomedical implants. The influence of processing parameters on its physical, microstructural, and mechanical properties was investigated. It was found that a bimodal microstructure and a porous structure could be achieved by blending powder particles with different sizes and using the space-holder technique.
Article
Chemistry, Physical
Maisam Jalaly, Reza Hosseini, Ali Bakhshi, Morteza Chehelamirani
Summary: Graphene aerogel and graphene-magnetite hybrid aerogel were prepared using hydrothermal method followed by a freeze-drying process. The addition of Fe3O4 nanoparticles improved the mechanical properties and thermal stability of the aerogels, and enhanced their thermal insulation performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Farhang Pazani, Mohammad Salehi Maleh, Mehrdad Shariatifar, Maisam Jalaly, Mohtada Sadrzadeh, Mashallah Rezakazemi
Summary: This paper comprehensively reviews the recent advances in the application of graphene-based nanosheets (GNSs) mixed matrix membranes (MMMs) for CO2 separation. The influences of GNSs characteristics on gas separation and strategies to enhance the performance of GNS-MMMs are discussed. The remaining challenges and future outlook of GNSs-based MMMs are also outlined.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Materials Science, Ceramics
Hossein Minouei, Maisam Jalaly, Mehdi Kheradmandfard, Mohsen Saboktakin Rizi, Dae-Eun Kim, Sun Ig Hong
Summary: In this study, a novel microwave-assisted method was developed to synthesize high-entropy oxide (HEO) nanoparticles. By varying the composition (Cr0.2Fe0.2Mn0.2Co0.2-xNi0.2Znx)3O4 (x = 0, 0.05, 0.1, and 0.2), nanoparticles with uniform distribution of metallic elements and particle sizes ranging from 10 to 50 nm were obtained. The suggested methodology is an excellent synthesis method due to its advantages of ultrafast, low-temperature fabrication of nanoscale and high-purity products at a relatively low cost.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Ali Bakhshi, Maisam Jalaly, Mohammad Vahedi
Summary: In this research, a magnetic field sensor based on a tapered optical fiber coated with a GO-Fe3O4 hybrid was fabricated. The sensor exhibited high sensitivity and linear response to the magnetic field changes.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Materials Science, Composites
Samia Lemboub, Azzedine Boudebane, Said Boudebane, Amel Bourbia, Samiha Mezrag, Francisco Jose Gotor
Summary: This study successfully produced composite materials through the combustion in thermal explosion mode of reactive mixtures. The manufactured samples exhibited excellent performance in terms of microstructure, hardness, and tribological behavior.
COMPOSITE INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Behzad Rahimzadeh, Maisam Jalaly, Mehrdad Roshan
Summary: Aluminum-based nanocomposite samples reinforced with different percentages of graphene-BN hybrid powder were fabricated, and their mechanical properties were compared. The AGB2 specimen, containing 0.95% graphene-0.05% BN, exhibited the highest tensile strength and hardness values.
IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING
(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)
