Article
Chemistry, Physical
Baran Sarac, Yurii P. Ivanov, Tolga Karazehir, Marlene Muehlbacher, A. Sezai Sarac, A. Lindsay Greer, Jurgen Eckert
Summary: The multilayer amorphous and crystalline Pd-Si based nanosheets demonstrate exceptionally high hydrogen storage capabilities when stacked in the right order, offering potential for enhanced hydrogen storage and production through smart design applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Peng Fu, Dong-Chun Yang, Ran Jia, Zhi-Jun Yi, Zhi-Feng Liu, Xiao Li, Roberts Eglitis, Zhong-Min Su
Summary: In this work, a silicon-based counterpart of T-carbon, named T-Si, was designed using density functional theory calculations. The stability of T-Si was confirmed from energetic, mechanical, lattice dynamic, and thermodynamic aspects. Due to space extrusion, delocalized electrons on Si-4 tetrahedrons are squeezed onto inter-tetrahedron Si-Si bonds, making T-Si metallic. Its electronic conductivity was predicted and discussed, and with a low density of 0.869 g/cm(3), T-Si can even float on water, paving the way for future spacecraft and automobile applications.
Article
Chemistry, Multidisciplinary
Lucy J. T. Metzroth, Elisa M. Miller, Andrew G. Norman, Sadegh Yazdi, Gerard Michael Carroll
Summary: Exploiting the high surface-area-to-volume ratio of nanomaterials to store energy in the form of electrochemical alloys shows promise, but nanoscale-specific properties affect the absorption and desorption of energy carrying equivalents. Adding an ultrathin platinum shell to the surface of palladium can greatly enhance hydrogen absorption rates and facilitate diffusion across the entire surface.
Review
Chemistry, Physical
Meltem Gor Bolen
Summary: The purpose of this review is to summarize the characterization and properties of porous silicon (PS) for hydrogen storage. The study highlights the importance of hydrogen as an intermediate product in silicon porosification technology. It explores the nature of hydrogen bonding in PS and its potential for hydrogen storage, providing valuable insights for understanding and future solutions.
Article
Chemistry, Inorganic & Nuclear
Qianliang Zhang, Baojuan Xi, Shenglin Xiong, Yitai Qian
Summary: SiO based materials have been developed with carbon coated SiO nanoparticles embedded in N-doped carbon nanosheets, showing excellent volume expansion suppression. The material exhibits stable reversible capacity and good rate performance at high cycle numbers, demonstrating potential as a promising anode for high capacity LIBs.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Amal Al-Azmi, Sajjad Keshipour
Summary: Interest in cost-effective materials has led researchers to utilize carbon-doped polysilicon synthesized from inexpensive and abundant semiconductors for efficient photocatalytic transformations. The resulting nanocomposite showed increased UV-Vis absorbance and shifted to higher wavelengths compared to bare polysilicon. Furthermore, the modification of carbon-doped polysilicon with Pd nanoparticles led to a stable and recyclable heterogeneous photocatalyst with high turnover frequency for formic acid degradation.
Article
Materials Science, Multidisciplinary
Xinxin Zou, Yanling Yang, Huajun Chen, Xiao-Lei Shi, Shaoli Song, Zhi-Gang Chen
Summary: Constructing a hierarchical meso/macro-porous structure for TiO2/g-C3N4 nanofibers improves light absorption, carrier separation efficiency, and photocatalytic performance, leading to a higher H-2 evolution rate. This work presents a new strategy for enhancing hydrogen production and provides an ideal solution for TiO2/g-C3N4 photocatalysts.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Zhihao Yang, Xiaoqing Du, Xiaoqiu Ye, Xiaodong Qu, Huiling Duan, Yufeng Xing, Li-Hua Shao, Changan Chen
Summary: The study presents the hydrogen isotope storage properties of free-standing monolithic nanoporous palladium (NP-Pd) with different microstructure feature sizes, showing high hydrogen separation efficiency and reversible storage capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Thanh Hoang Phuong Doan, Won G. Hong, Jin-Seo Noh
Summary: Pd-Ti3C2Tx nanocomposite with superb hydrogen-sensing capability and certain hydrogen storage ability was synthesized through a simple two-step process.
Article
Chemistry, Physical
Xingtao Zhao, Yakun Guo, Zekun Jing, Xue Liu, Ruidong Liu, Ran Tao, Tianyu Cai, Yingjun Li, Yuanlin Zhou, Maobing Shuai
Summary: In this study, formable graphene aerogel hydrogen getters were prepared by integrating alkyne-containing molecules into palladium-loaded three-dimensional layered porous graphene aerogel. The results showed that the Pd-GA/DEB composite materials had a high hydrogen absorption capacity in reducing reactive hydrogen gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Biochemistry & Molecular Biology
Krystina E. Lamb, Colin J. Webb
Summary: Hydrogen storage is important for transitioning to cleaner energy systems. Metal hydride materials, such as core-shell V90Al10-Pd80Ag20, could increase hydrogen storage density and decrease compression costs. This article evaluates the technical viability of V90Al10-Pd80Ag20 and compares its hydrogen-storage capacity to other materials.
Article
Chemistry, Multidisciplinary
Qunhong Weng, Lula Zeng, Zhiwei Chen, Yuxin Han, Kang Jiang, Yoshio Bando, Dmitri Golberg
Summary: Hydrogen fuel cell vehicles face high costs due to inefficient hydrogen storage technologies, with research showing that the chemical states of porous boron nitride materials significantly impact their hydrogen adsorption performances.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sajjad S. Mofarah, Luisa Schreck, Claudio Cazorla, Xiaoran Zheng, Esmaeil Adabifiroozjaei, Constantine Tsounis, Jason Scott, Reza Shahmiri, Yin Yao, Roozbeh Abbasi, Yuan Wang, Hamidreza Arandiyan, Leigh Sheppard, Vienna Wong, Esmail Doustkhah, Pramod Koshy, Charles C. Sorrell
Summary: This study introduces a rapid, flexible, and template-free method for synthesizing CeO2-x nanostructures with high densities of defects and surface area by controlling the conversion of Ce-based coordination polymer into stable oxide morphologies. The further improvement in CO conversion performance is achieved through the creation of heterojunction nanostructures using transition metal oxides. This technology offers the ability to efficiently engineer nanostructures of advanced functionalities for catalysis.
Article
Chemistry, Multidisciplinary
Sanja Burazer, Koen Robeyns, Laure Guenee, Gregor Mali, Fabrice Morelle, Voraksmy Ban, Teodoro Klaser, Yaroslav Filinchuk, Radovan Cerny, Jasminka PopoviC
Summary: The novel high-temperature polymorph of sodium imidazolate was discovered through mechanochemical reaction and thermal treatment, and characterized using various experimental techniques. It exhibits a porous structure suitable for gas sorption/separation and remains stable at room temperature.
CRYSTAL GROWTH & DESIGN
(2021)
Review
Chemistry, Physical
Pamela Ramirez-Vidal, Giuseppe Sdanghi, Alain Celzard, Vanessa Fierro
Summary: Hydrogen, as a promising energy carrier, has the potential to replace fossil fuels and reduce CO2 emissions; however, its low volumetric energy density remains a major drawback. This manuscript reviews different solutions for hydrogen storage, with a particular focus on hydrogen adsorption at cryogenic temperatures and moderate pressures on high surface area porous materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
G. V. Kuznetsov, D. Yu. Malyshev, S. V. Syrodoy, N. Yu. Gutareva, M. V. Purin, Zh. A. Kostoreva
Summary: The ignition processes of a new fuel called Bio water-coal (Bio-WCF) based on charcoal and coal were studied theoretically and experimentally. It was found that adding charcoal to the water-coal suspension significantly accelerates the ignition process. A mathematical model was developed and numerical simulation was carried out to analyze the ignition delay times and gas mixture compositions.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Vladyslav V. Lisnyak, Alexander N. Zaderko, Ruslan Mariychuk, Volodymyr Lysenko, Olga Yu. Boldyrieva, Valeriy A. Skryshevsky, Gauhar Mussabek, Yerzhan Taurbayev, Nazym Zhylkybayeva, Oksana Yu. Tananiko
Summary: A novel sensing system for pH measurements was developed based on the enhanced and quenched photoluminescence and UV-Vis absorption of F-, O-, and N-containing carbon nanoparticles. The study characterized the structure and properties of these nanoparticles, and identified the pH response mechanism to be related to deprotonation of functional groups.
APPLIED NANOSCIENCE
(2022)
Article
Nanoscience & Nanotechnology
V. M. Pyeshkova, O. Y. Dudchenko, O. O. Soldatkin, S. A. Alekseev, T. Seker, B. Akata Kurc, S. V. Dzyadevych
Summary: A new three-enzyme lactose amperometric biosensor was developed based on a platinum disc electrode modified by a nanosized semipermeable poly (meta-phenylenediamine) film. The optimized electropolymerization conditions of meta-phenylenediamine resulted in a high sensitivity and selectivity of the biosensor for lactose measurement. The biosensor showed high reproducibility, sensitivity, and selectivity, making it suitable for rapid and accurate determination of lactose in milk samples.
APPLIED NANOSCIENCE
(2022)
Article
Thermodynamics
G. V. Kuznetsov, D. Yu Malyshev, S. V. Syrodoy, N. Yu Gutareva, Zh. A. Kostoreva
Summary: This study presents experimental results on the ignition process of bio-coal water fuel particles. The introduction of additives from forest combustible materials is found to accelerate the ignition process. The chemical reaction between gaseous pyrolysis products and high-temperature oxidizer is shown to be of short duration. The use of composite fuels and the introduction of biomass can reduce the ignition delay time in the coal energy sector.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
G. V. Kuznetsov, P. A. Strizhak, T. R. Valiullin, R. S. Volkov
Summary: The study explored the potential of using typical coal processing wastes as fuel and the application of waste-to-energy combustion to solve environmental, economic, and energy problems.
FUEL PROCESSING TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Mykola Isaiev, Gauhar Mussabek, Pavlo Lishchuk, Kateryna Dubyk, Nazym Zhylkybayeva, Gulmira Yar-Mukhamedova, David Lacroix, Vladimir Lysenko
Summary: Photoacoustic-based sensing approaches are essential for imaging and visualization in material research and biomedical applications. The compact size and on-site measurement capability of photoacoustic devices enable online monitoring of material parameters, which is significant for the development of various sensing applications.
Article
Energy & Fuels
D. V. Antonov, G. V. Kuznetsov, S. S. Sazhin, P. A. Strizhak
Summary: This paper describes the results of experimental investigation and modeling of puffing/micro-explosion in composite droplets of rapeseed oil mixed with coal micro-particles and water. The modeling is based on a previously developed model, which assumes the presence of a spherical water subdroplet in the center of a fuel droplet. The predicted and observed times to puffing/micro-explosion decreased as the ambient gas temperatures and mass fractions of micro-particles in rapeseed oil increased.
Article
Engineering, Chemical
E. R. Podgornaya, G. V. Kuznetsov, R. S. Volkov, P. A. Strizhak
Summary: This paper presents experimental research findings on the characteristics of composite liquid fuel spraying with different nozzle arrangements. The results show that the nozzle arrangement has a significant impact on the spraying characteristics and the filling of the combustion chamber with aerosol. It was also found that the size and number of secondary fragments can be controlled by intensifying the interaction of the sprayed liquid jets.
Article
Green & Sustainable Science & Technology
G. V. Kuznetsov, S. V. Syrodoy, B. V. Borisov, Zh. A. Kostoreva, N. Yu Gutareva, A. A. Kostoreva
Article
Chemistry, Physical
Kateryna I. I. Hnatiuk, Yuri F. F. Zabashta, Maxim M. M. Lazarenko, Sergei A. A. Alekseev, Kateryna S. S. Yablochkova, Michael V. V. Ushcats, Roman V. V. Dinzhos, Liena Yu. Vergun, Dmytro A. A. Andrusenko, Aleksander N. N. Alekseev, Leonid A. A. Bulavin
Summary: This study investigates the scale effect of dielectric relaxation in nanocrystals, specifically how the relaxation parameters depend on the size of the nanocrystal. A model is proposed to explain the scale effect caused by thermally activated motion, considering each nanocrystal as a physical infinitesimal volume where local equilibrium exists. It is concluded that energy fluctuations in the nanocrystal as a whole are caused by thermally activated motion, and the intensity of these fluctuations decreases with decreasing nanocrystal sizes. Experimental data using complex dielectric permittivity of composites support the predictions of the model.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Thermodynamics
G. V. Kuznetsov, G. S. Nyashina, K. Yu. Vershinina, D. S. Romanov, P. A. Strizhak
Summary: Consideration has been given to using municipal and industrial waste as components of a high-moisture suspension fuel and evaluating its efficiency using MCDM multifactor-analysis methods. It has been found that suspensions without impurities and suspensions with a 10% content of cardboard are the most efficient, exceeding the efficiency of coal by 90% in some cases. Directions for improving the efficiency of suspension fuels made from industrial and municipal waste have been determined.
JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS
(2023)
Article
Thermodynamics
I. S. Voitkov, A. O. Zhdanova, S. S. Kropotova, G. V. Kuznetsov, P. P. Tkachenko
Summary: This study investigated the collision characteristics of fire-extinguishing agent droplets in an aerosol cloud. The results showed that the number of collisions depended on the droplets' Weber number and linear interaction parameter. The frequency of different collision modes depended on the droplets' size and concentration. The distances at which droplets did not collide were determined, and an approximate expression was constructed to estimate the distance between droplets of different fire-extinguishing agents in an aerosol cloud.
JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS
(2023)
Article
Thermodynamics
I. S. Voitkov, N. P. Kopylov, S. S. Kropotova, G. V. Kuznetsov, P. P. Tkachenko
Summary: The authors conducted experimental investigations on the integral characteristics of motion of liquid droplets in gas media and found that the distribution of droplets is influenced by the velocity of the medium, its temperature, and the concentration of vapor. The study provides insights into predicting the distribution of droplets in a moving gas medium, particularly in scenarios like fighting forest fires.
JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS
(2022)
Article
Thermodynamics
K. O. Ponomarev, G. V. Kuznetsov, E. G. Orlova, D. V. Feoktistov
Summary: Ensuring the permissible temperature regime of heat-loaded and energy-saturated equipment is still an urgent problem. This study demonstrates that thermosyphons without a boiling coolant on their lower lid can be used as self-regulating heat exchangers to ensure the permissible temperature regime of heat-loaded and energy-saturated equipment.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Chemistry, Inorganic & Nuclear
Sergey P. Chenakin, Sergei A. Alekseev, Norbert Kruse
Summary: XPS and DRIFTS were used to study the isothermal decomposition of MnC2O4 under different environmental conditions, revealing its decomposition kinetics and the composition of the final products. This helps to better understand the thermal decomposition mechanism of this compound.
INORGANIC CHEMISTRY
(2022)
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)
