Article
Energy & Fuels
Bo Keun Park, Yong-Keon Ahn, Yong Kab Kwon, Ki Jae Kim
Summary: The study proposes an eco-friendly ceramic composite separator with enhanced adhesive strength and reduced interfacial resistance for lithium-ion batteries. By modifying the surface of the PE separator and applying a water-based polymeric coating, the separator demonstrates superior performance in LIB half-cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Composites
Menglin Li, Lei Sheng, Rong Xu, Yang Yang, Yaozong Bai, Shangjun Song, Gaojun Liu, Tao Wang, Xianli Huang, Jianping He
Summary: By treating PI nanofiber membrane with lithium polyacrylate (PAALi) binder, the mechanical strength is improved, making it promising for high-power lithium ion battery applications.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Ai Qin Thang, Yuejun Shen, Zugui Shi, Ge Yao, Sun Yew Wong, Zhaolin Liu, Qingyu Yan
Summary: A ceramic-coated separator (CCS) was fabricated by coating sub-micron-sized alpha (α)-alumina on a conventional microporous polyolefin separator using partially neutralized polyacrylic acid (Pn PAA) as a dispersant and binder. The Pn PAA adsorbs on alumina surfaces through columbic interaction, providing repulsive force for dispersion and strong binding on plasma-treated separator through hydrogen bonding. The CCS showed favorable wettability and ionic conduction in carbonate-based electrolyte due to the high hydrophilicity of Pn PAA and alumina. The Pn PAA-made CCS exhibited a substantial adhesion strength of about 106 N/m and a specific capacity of 145.0 mAh/g after 200 cycles at 1 C at room temperature in half cells (LFP/Li metal).
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Materials Science, Paper & Wood
Mononita Das, Pradip Sekhar Das, Rajendra Nath Basu, Mir Wasim Raja
Summary: This research focuses on developing a sustainable separator for lithium-ion batteries by functionalizing low-cost cellulose-based commercial paper. The developed paper separator shows superior thermal stability, excellent electrolyte wettability, and satisfactory mechanical strength. It exhibits comparable electrochemical performance to commercial polypropylene-based separators and is compatible with various commercial electrodes. Additionally, the functionalized cellulose-ceramic composite paper separator shows excellent flame retardant properties.
Article
Chemistry, Physical
Kuo Yang, Zehai Zhang, Ke Xu, Ye Li, Fangfei Li, Bing Xue, Xiaopeng Gu
Summary: A porous Li4SiO4 ceramic separator is prepared using diatomite and lithium carbonate as raw materials. The separator exhibits an abundant and uniform three-dimensional pore structure, excellent electrolyte wettability, and thermal stability. With a maximum ionic conductivity of 1.18 mS cm(-1), the Li4SiO4 ceramic separator shows promising application prospects in high-power lithium-ion batteries.
Article
Materials Science, Multidisciplinary
Jianwei Li, Xuanning Zhang, Yuyan Lu, Keliang Linghu, Chen Wang, Zhonglei Ma, Xinhai He
Summary: In this study, composite nanofibrous membranes (CNMs) with enhanced mechanical strength and thermal stability were successfully fabricated by synthesizing fluorinated polyimide (FPI) and blending it with polyvinylidene fluoride (PVDF). The CNMs showed improved tensile strength and almost no dimensional shrinkage after heat treatment. In addition, the CNMs exhibited enhanced electrochemical performances compared to neat PVDF and commercial Celgard membranes, with higher electrolyte uptake and ionic conductivity. The prepared CNMs offer a promising approach for high-performance separator design.
ADVANCED FIBER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Chao Zou, Yun Huang, Ling Zhao, Wenhao Ren, Zhixing Zhao, Jiapin Liu, Xing Li, Mingshan Wang, Bingshu Guo, Yuanhua Lin
Summary: This study utilizes branched polyethyleneimine as a functional binder to address the electrode deterioration and capacity decay caused by the dissolution of transition metal ions. The binder can effectively absorb soluble transition metal ions, reduce the loss of active materials, and achieve uniform distribution of key components. This leads to improved rate capability and cycle stability of the battery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Composites
Liying Wang, Yuhan Liu, Xinwei Du, Xiaohui Guo, Qi Zhao, Yuliang Wang, Zhangnan Li, Baijun Liu, Zhaoyan Sun, Yongfeng Men, Wei Hu
Summary: To overcome the limitations of polyethylene separator for lithium-ion batteries, a composite solution of poly(ether ketone) and carbon nanoparticles obtained from nanocellulose carbonization in sulfuric acid was used to modify the separator. The resulting Janus composite separator exhibited high thermal stability, excellent electrolyte loading rate, and improved battery performance. The introduction of carbon nanoparticles provided additional oxidation sites and enhanced ion conductivity, reducing charge transfer resistance.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ju Young Kim, Seok Hun Kang, Young-Sam Park, Jaecheol Choi, Hyeong Min Jin, Dong Ok Shin, Myeong Ju Lee, Young-Gi Lee
Summary: Functional separators for advanced batteries can be fabricated using polyvinyl alcohol (PVA) as a surface modifier to enhance the wetting behavior of hydrophobic separators. This method allows for uniform coating of aqueous slurries on hydrophobic separators, which was not possible before. Additionally, this method allows for the fabrication of ceramic-coated separators with improved thermal stability and adhesion strength, without compromising lithium-ion transport.
SURFACES AND INTERFACES
(2023)
Article
Energy & Fuels
Dean Chou, Yu-Hao Cheng
Summary: This study investigates the mechanical response of a battery separator and its impact on battery performance. Simulating the displacement and pore pressure of the separator under different charge/compression rates, it is found that the stress-strain curve of the separator exhibits a wave pattern in the fully dynamic model, while this phenomenon is not observed in the quasi-static model. The maximum displacement and pore pressure increase with the compression rate, and the pore pressure fluctuates during compression in the fully dynamic model.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Hui Yang, Muhammad Abdullah, Joeseph Bright, Weiguo Hu, Kevin Kittilstved, Yaobin Xu, Chongmin Wang, Xiangwu Zhang, Nianqiang Wu
Summary: Hydrogen treatment of LLTO nanofibers improved ion conductivity and chemical interaction in the composite electrolyte, leading to stable battery performance at room temperature.
JOURNAL OF POWER SOURCES
(2021)
Article
Biochemistry & Molecular Biology
Nan Wang, Wenyong Liu, Haiyang Liao, Zhihan Li, Yi Chen, Guangsheng Zeng
Summary: Pure cellulose nanofiber (CNF) separators for high-performance lithium-ion batteries (LIBs) were prepared using CNF as the matrix and tert-butyl alcohol (TBA) as the dispersion medium by a facile filtration method. The freeze-dried separator at -80 degrees C with TBA as the dispersion medium (TBA-FD) exhibited the best performance, with high porosity, electrolyte uptake, and ionic conductivity. The CNF separators showed good thermal stability and demonstrated superior cycling stability and rate performance in LIBs.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Ceramics
Hari Raj, Anjan Sil
Summary: This study focuses on using water-based electrode processing and replacing toxic materials with environmentally benign alternatives in the manufacturing of Li-ion batteries. The synergistic effect of PEDOT:PSS with MWCNTs and carbon black on LiFePO4 cathode performance shows potential for improving battery efficiency and sustainability.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Huayan Xiao, Juncheng Qiu, Shuxing Wu, Liangxin Xie, Wenbo Zhou, Xiujuan Wei, Kwun Nam Hui, Ming Zhang, Zhan Lin
Summary: In this study, an aqueous binder called PGA-ECH was used to enhance the performance of SiOx anodes, improving long-term cycling stability. The binder's structure contains abundant functional groups that form strong interactions with the SiOx surface, ensuring good interfacial adhesion. Covalent bonds and supramolecular interactions in the binder guarantee mechanical strength and elasticity. The interactions between lithium ions and the oxygen (nitrogen) atoms of carboxylate (peptide) bonds facilitate the diffusion of lithium ions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Ruihuan Ge, Adam M. Boyce, Yige Sun, Paul R. Shearing, Patrick S. Grant, Denis J. Cumming, Rachel M. Smith
Summary: The complex microstructure of the electrode greatly affects the performance of lithium-ion batteries (LIBs). The microporosity of the carbon binder domain (CBD) has been studied for the first time, revealing its influence on battery performance. The battery's specific capacity improves as the microporosity of the CBD phase increases.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Dahee Jin, Hyeon-Su Bae, Jinseok Hong, Sojin Kim, Jeounghun Oh, Kyuman Kim, Taejin Jo, Yong Min Lee, Young-Gi Lee, Myung-Hyun Ryou
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Physical
Sun Ho Park, Joonam Park, Myung-Hyun Ryou, Yong Min Lee
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Multidisciplinary
Junyoung Choi, Kwansoo Yang, Hyeon-Su Bae, Isheunesu Phiri, Hyun Jeong Ahn, Jong Chan Won, Yong Min Lee, Yun Ho Kim, Myung-Hyun Ryou
Article
Chemistry, Multidisciplinary
Jinseok Park, Jungmin Kim, Dae Soo Jung, Isheunesu Phiri, Hyeon-Su Bae, Jinseok Hong, Sojin Kim, Young-Gi Lee, Myung-Hyun Ryou, Kyubock Lee
Article
Materials Science, Multidisciplinary
Seoungwoo Byun, Youngjoon Roh, Kwang Man Kim, Myung-Hyun Ryou, Yong Min Lee
APPLIED MATERIALS TODAY
(2020)
Article
Engineering, Environmental
Dahee Jin, Youngjoon Roh, Taejin Jo, Dong Ok Shin, Juhye Song, Ju Young Kim, Young-Gi Lee, Hongkyung Lee, Myung-Hyun Ryou, Yong Min Lee
Summary: The study investigates how coating thin carbon layers on current collectors in lithium metal electrodes can maintain interfacial contact between the copper foil and lithium metal particles, while also reducing overpotential to improve battery performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Muchakayala Ravi, Sanghoon Kim, Fen Ran, Dong Soo Kim, Yong Min Lee, Myung-Hyun Ryou
Summary: Polymer electrolytes based on PVdF-HFP, LiTFSI, and PMPyrrTFSI were prepared and their composition dependence and electrical properties were studied to develop the optimum composition. The optimized gel polymer electrolytes exhibited high mechanical stability and excellent thermal stability up to 420 degrees C, showing potential for application in solid-state lithium secondary batteries. A solid-state cell based on 70PVdF-HFP/30LiTFSI/60PMPyrrTFSI delivered a maximum discharge capacity of 151 mAh g(-1) at room temperature with good rate capability and cycling performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Dahee Jin, Youngjoon Roh, Taejin Jo, Myung-Hyun Ryou, Hongkyung Lee, Yong Min Lee
Summary: A composite electrode with preplanted LiNO3 on Li metal powder (LN-LMP) was designed to stabilize the LMP surface and enhance the performance of Li metal batteries (LMBs). The LN-LMP electrode showed excellent cycling performance and outperformed cells with LiNO3-containing electrolytes.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Isheunesu Phiri, Jungmin Kim, Dong-Hoon Oh, Muchakayala Ravi, Hyeon-Su Bae, Jinseok Hong, Sojin Kim, Yong-Cheol Jeong, Yong Min Lee, Young-Gi Lee, Myung-Hyun Ryou
Summary: Utilizing a dual-salt electrolyte containing 0.05 M LiNO3 can significantly enhance the electrochemical performance of Li metal anodes in secondary batteries. The presence of LiNO3 promotes the formation of a stable solid electrolyte interface, facilitating uniform lithium deposition during cycling processes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Hyeon-Su Bae, Isheunesu Phiri, Hong Suk Kang, Yong Min Lee, Myung-Hyun Ryou
Summary: The study found that lithium metal fabricated with large and flexible patterning stamps demonstrated improved electrochemical performance and stable morphological properties, showing a significant increase in patterned area compared to traditional stainless-steel stamps.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Jihun Song, Dong Ok Shin, Seoungwoo Byun, Youngjoon Roh, Cheol Bak, Juhye Song, Jaecheol Choi, Hongkyung Lee, Tae-Soon Kwon, Young-Gi Lee, Myung-Hyun Ryou, Yong Min Lee
Summary: This study reevaluates the adhesion values measured by the microblade cutting method on thick composite electrodes, and identifies the significant influence of side areas and actual peeling area on the measured forces. A new measurement standard is proposed for ultra-high electrodes to obtain reliable adhesion.
JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yujin So, Hyeon-Su Bae, Yi Young Kang, Ji Yun Chung, No Kyun Park, Jinsoo Kim, Hee-Tae Jung, Jong Chan Won, Myung-Hyun Ryou, Yun Ho Kim
Summary: Silicon-based anodes have limitations due to significant volume changes during lithium-ion battery cycles, but a water-soluble polyimide (W-PI) binder has been developed to address this issue. By forming ester bonds with silicon nanoparticles, the W-PI binder enhances adhesion and improves the electrochemical performance and cyclability of the silicon anode.
Article
Engineering, Environmental
Youngjoon Roh, Dahee Jin, Eunsae Kim, Seoungwoo Byun, Yoon-Sung Lee, Myung-Hyun Ryou, Yong Min Lee
Summary: In this study, a new chemical crosslinking method was designed to minimize the thickness of ceramic coating layer (CCL) while maintaining its thermal stability. The results showed that the crosslinked PD ceramic-coated separator (xPD-CCS) could maintain its dimension even at high temperatures and exhibited comparable cycle performance to conventional separators.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Isheunesu Phiri, Jeong-Tae Kim, Ssendagire Kennedy, Muchakayala Ravi, Yong Min Lee, Myung-Hyun Ryou
Summary: A new method of slurry coating, called double-coated electrode, has been developed to improve the uniformity, density, and adhesion strength of electrodes. The double-coated electrode exhibits lower electric resistance and higher electrochemical performance, especially at higher C rates. This method is effective for the large-scale production of high-energy-density electrodes.
JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Seungwon Yang, Joonam Park, Seoungwoo Byun, Nayeon Kim, Myung-Hyun Ryou, Yong Min Lee
JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY
(2020)
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)
