Article
Chemistry, Physical
Haohua Zhang, Yiting Bu, WenYing Xiong, Kejian He, Ting Yu, Zhaoyu Liu, Jiaao Wu, Bin Li, Lixian Sun, Yongjin Zou, Weiqi Sun, Rongrong Guo, Fen Xu, Kexiang Zhang, Huanzhi Zhang
Summary: Magnesium hydroxide has gained attention for its potential as a hydrogen storage material, but its stability and slow kinetic activity limit its applications. To improve its hydrogen storage capacity, ternary transition metal nitride NiCoN was used to catalyze MgH2 through hydrothermal and calcination techniques. The addition of 6 wt% NiCoN lowered the dehydrogenation temperature to 164.4 degrees C and increased the hydrogen desorption rate. The presence of intermediate products, Mg2Ni/Mg2NiH4 and Mg2Co/Mg2CoH5, contributed to the enhanced hydrogen absorption/desorption behavior and the retention rate of 94% even after 40 cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Energy & Fuels
Dan Tang, Guang-Lei Tan, Guo-Wei Li, Jin-Guang Liang, Shah Masood Ahmad, Ayesha Bahadur, Muhammad Humayun, Habib Ullah, Abbas Khan, M. Bououdina
Summary: Hydrogen is a clean, versatile, and energy-dense fuel that has the potential to play a key role in a low-carbon energy future. This paper reviews the state-of-the-art in hydrogen generation methods and storage technologies, including water electrolysis, gasification, dark fermentation, steam reforming, photocatalytic water splitting, and water thermolysis for generation, and compression, liquefaction, liquid organic carriers, and solid-state storage for storage. The development of efficient and cost-effective hydrogen generation and storage technologies is essential for the widespread adoption of hydrogen as a clean energy source.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Chen Jin, Haoyuan Zheng, Li Wang, Haizhen Liu, Xinhua Wang, Mi Yan
Summary: Adding rare earth hydride CeH2.51 significantly improves the hydrogen storage performance of Mg(NH2)2-2LiH, enhancing the hydrogen absorption/desorption kinetics and cycle performance. The sample doped with 7.5 wt% CeH2.51 shows the best comprehensive performance, with reduced activation energy and stable hydrogen storage capacity after cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Nozomi Noto, Shigehito Isobe, Naoyuki Hashimoto
Summary: The research evaluated the dehydrogenation properties of several hydride-hydroxide systems and found that only the KH-LiOH system showed potential for reversible hydrogen adsorption/desorption, although rehydrogenation would require extremely high pressure.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Juyoung Kim, Julien O. Fadonougbo, Jee-Hwan Bae, Min Kyung Cho, Jaeyoung Hong, Young Whan Cho, Jong Wook Roh, Gyeung Ho Kim, Jun Hyun Han, Young-Su Lee, Jung Young Cho, Kyu Hyoung Lee, Jin-Yoo Suh, Dong Won Chun
Summary: This study reports real-time observations of the dehydrogenation of a Mg2FeH6-MgH2 composite using in situ transmission electron microscopy (TEM) with advanced spatial and temporal resolution. Through careful control and systematic variations of the reaction temperature and electron dose rate, the characteristic decomposition of Mg2FeH6 into Mg and Fe on the nanometer scale is visualized. The formation and growth of nanostructured Fe clusters in Mg metal during dehydrogenation are verified, and the desorption kinetics of the two coexisting phases are separately evaluated. These findings provide useful guidelines for designing hydrogen sorption conditions and improving solid-state hydrogen storage systems.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Li Ren, Yinghui Li, Ning Zhang, Zi Li, Xi Lin, Wen Zhu, Chong Lu, Wenjiang Ding, Jianxin Zou
Summary: With the urgent need to find green, low-cost, and high-efficiency energy resources due to the depletion of fossil fuels and global warming, hydrogen has been considered as a potential alternative. However, effective and safe hydrogen storage techniques are now becoming a bottleneck for the hydrogen economy. Magnesium-based hydrogen storage materials have garnered interest due to their high storage capacity, low cost, and excellent reversibility. Nano-structuring has proven to be an effective strategy to enhance the thermodynamic and kinetic properties of these materials.
NANO-MICRO LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
Xu Pang, Lei Ran, Yu'an Chen, Yuxiao Luo, Fusheng Pan
Summary: This paper investigates the hydrogen absorption and desorption performance, as well as the microstructure characteristics of magnesium-based hydrogen storage materials. By adjusting the addition amount of nickel and yttrium elements, the alloy structure with improved hydrogen storage performance is obtained.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Metallurgy & Metallurgical Engineering
Yaokun Fu, Lu Zhang, Yuan Li, Sanyang Guo, Han Yu, Wenfeng Wang, Kailiang Ren, Wei Zhang, Shumin Han
Summary: Hydrogen storage is a crucial aspect of the hydrogen economy, and solid-state hydrogen storage is the most promising approach. In this study, a ternary transition metal sulfide FeNi2S4 with a hollow balloon structure was designed as a catalyst for MgH2 to enhance its dehydrogenation/hydrogenation performance by constructing a MgH2/Mg2NiH4-MgS/Fe system.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Review
Engineering, Environmental
Wanying Zheng, Xi Hu, Mengcheng Wu, Lingyun Chen, Shaowei Chen
Summary: The aggravation of energy and environmental issues has led to the development of sustainable energy storage technologies. Among them, emerging ammonium-ion storage is considered a promising competitor due to its plentiful resources, inherent safety, fast diffusion capability, and unique storage mechanism. However, the development of NH4-ion storage devices is still in its early stage, and finding suitable electrode materials is crucial for high-performance devices. This article provides a comprehensive review on recent advances of electrode materials for NH4-ion storage devices and introduces various NH4-ion storage devices, such as ammonium-ion batteries, supercapacitors, capacitors, dual-ion batteries, and hybrid batteries. It concludes with perspectives on future developments in order to facilitate their large-scale energy storage applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Brandom Jhoseph Cid, Akari Narayama Sosa, Alvaro Miranda, Luis Antonio Perez, Fernando Salazar, Arturo I. Mtz-Enriquez, Miguel Cruz-Irisson
Summary: The use of nanomaterials for hydrogen storage is important, but current potential nanomaterials have low density and stability at room temperature. This study investigates the hydrogen storage capabilities of Na-, K- and Ca-decorated B-doped siligene monolayer (BSiGeML) using density functional theory calculations. The results show that boron doping improves the interaction between metal adatoms and the siligene monolayer. K- and Ca-decorated BSiGeML can bind up to seven H2 molecules per metal adatom, while Na-decorated BSiGeML only adsorbs four H2 molecules per site. At room temperature, all H2 molecules adsorbed on Na- and Ca-decorated BSiGeML are stable at mild pressure. Metal decoration on both sides of BSiGeML may exceed the target of 5.5 wt% hydrogen gravimetric density proposed by DOE for 2025. K- and Ca-decorated BSiGeML could be efficient hydrogen molecular storage media compared to undoped SiGeML and other 2D pristine materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Paul C. Okonkwo, El Manaa Barhoumi, Ikram Ben Belgacem, Ibrahim B. Mansir, Mansur Aliyu, Wilfred Emori, Paul C. Uzoma, Wesam H. Beitelmal, Ersin Akyuz, Ahmed Bahgat Radwan, R. A. Shakoor
Summary: Hydrogen embrittlement is a well-known phenomenon in high-strength and storage materials, causing subcritical crack growth, fracture initiation, loss in mechanical properties, and catastrophic failure. The fundamental mechanism of hydrogen embrittlement remains unclear, although various mechanisms responsible for crack development, growth, and fracture have been discussed and reported.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Engineering, Environmental
Min Liu, Zhendong Yao, Jing Gu, Chao Li, Xu Huang, Liuting Zhang, Zengyang Huang, Meiqiang Fan
Summary: Hydrogen energy is considered important for low carbon energy and has wide application prospects. The production of hydrogen plays a crucial role in the hydrogen industry chain. The safe and stable acquisition of hydrogen remains a pressing issue, particularly for temporary or portable usage scenarios, due to inadequate infrastructure. This paper systematically investigates the research progress of hydrolytic hydrogen production materials in the past 15 years, categorizing them into four systems based on hydrolysis characteristics. The advantages, disadvantages, and technical bottlenecks of different materials are thoroughly analyzed, and promising candidates are identified for industrialization feasibility and cost-effectiveness.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Physical
P. Muthukumar, Alok Kumar, Mahvash Afzal, Satyasekhar Bhogilla, Pratibha Sharma, Abhishek Parida, Sayantan Jana, E. Anil Kumar, Ranjith Krishna Pai, I. P. Jain
Summary: Continuous population growth and enhanced living standards have led to a significant increase in global energy demand. To ensure sustainability, the integration of renewable energy sources with large-scale hydrogen generation and storage units is necessary. This review provides an overview of the worldwide development status of various hydrogen storage technologies, including compressed, cryogenic, liquid organic hydrogen carrier, and solid-state storage. It also covers the classification of tank materials, underground storage sites, and comparisons of liquefaction cycles and economics of hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Matthias Enders, Chao Zhu, Maximilian Kleber, Georg Derscheid, Ruediger Berger, Hans-Dieter Bauer, Birgit Scheppat
Summary: The hydrogen content during ab-/desorption of complex metal hydrides can be monitored via FTIR-ATR spectroscopy. Changes in the surface morphology of the pellet sample during cycling may affect the spectral changes and degrade the optical signal stability. Investigation of the desorption behavior of TiCl3-doped NaAlH4 compacts showed that optical signal degradation occurs with increasing ab-/desorption cycles, and temperature changes during cycling further contribute to the signal degradation. The roughening of the pellet surface observed through SEM and SFM measurements is attributed to cycling. Different approaches have been explored to ensure long-term signal coupling for reliable optical monitoring, and dimensional changes in surface flatness were identified as the primary factor controlling the optical signal quality. The findings have implications for the improvement of measurement methods and the development of fuel level sensors for solid-state hydrogen storage systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Hang Che, Yuhao Wu, Xinhua Wang, Haizhen Liu, Mi Yan
Summary: In this work, Li3VO4@LiVO2 was introduced into the Mg(NH2)2-2LiH system to enhance the hydrogen absorption and desorption kinetic characteristics. The addition of 10 wt% Li3VO4@LiVO2 greatly improved the hydrogen storage properties, with significant increase in hydrogen absorption and desorption rates, and decrease in the activation energy of hydrogen desorption. Moreover, Li3VO4@LiVO2 also increased the hydrogen absorption and desorption capacities of the sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Abdulazeez Adewale Oderinde, Adeola Ahmed Ibikunle, Lateef Gbenga Bakre, Najeem Abiola Adesola Babarinde
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Review
Thermodynamics
Joshua Iseoluwa Orege, Olayinka Oderinde, Ghebretensae Aron Kifle, Adeola Ahmed Ibikunle, Saheed Abiola Raheem, Onome Ejeromedoghene, Emmanuel Sunday Okeke, Olubunmi Michael Olukowi, Odunola Blessing Orege, Emmanuel Oluwaseyi Fagbohun, Taiwo Oladapo Ogundipe, Esther Praise Avor, Omoyemi Oluwatosin Ajayi, Michael Olawale Daramola
Summary: Heterogeneous catalysis provides a viable alternative for low-cost biodiesel production, and catalytic transesterification is considered the most feasible synthesis method. Nine commonly used heterogeneous catalysts have been studied, with a focus on versatile catalysts with high activity and low production cost.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Kayode Sanusi, Odunayo C. Atewolara-Odule, Nurudeen O. Sanyaolu, Adeola A. Ibikunle, Phindile B. Khoza, Nafisat O. Fatomi, Similoluwa A. Fasanya, Hope E. Abuka, Esther O. Jesugbile, Yusuf Yilmaz, Umit Ceylan
Summary: The adsorption properties and solubility behaviors of 18 porphyrin derivatives in different solvents were predicted using density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. It was found that the photovoltaic properties were enhanced when the substituent of the parent porphyrin was -CO2H and acetonitrile (AcCN) or dichloromethane (DCM) was used as the solvent. The correlation between the adsorption properties on the TiO2 surface and the solubility properties in the selected solvents was poor, which was attributed to the porphyrin-solvent-TiO2 interaction.
STRUCTURAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Segun A. Ogundare, Gregarious Muungani, James F. Amaku, Abdulrazaq O. Ogunmoye, Titilayo O. Adesetan, Oseyemi O. Olubomehin, Adeola A. Ibikunle, Werner E. van Zyl
Summary: This study demonstrates the use of aqueous mango stem bark extract as a reducing and stabilizing agent for the biosynthesis of silver nanoparticles. The nanoparticles exhibit catalytic activity and enhanced antibacterial properties.
Article
Engineering, Environmental
Segun Ajibola Ogundare, Titilayo Oyeronke Adesetan, Gregarious Muungani, Vashen Moodley, James Friday Amaku, Odunayo Christy Atewolara-Odule, Sodiq Tolulope Yussuf, Nurudeen Olanrewaju Sanyaolu, Adeola Ahmed Ibikunle, M. -Sadeeq Balogun, Werner Ewald van Zyl
Summary: In this study, the aqueous extract of Peltophorum pterocarpum leaves (PPLE) was used as a reducing and stabilizing agent for the biosynthesis of silver nanoparticles (AgNPs). The AgNPs showed good catalytic activity and improved antibacterial activities, suggesting their potential applications in water treatment and disinfectant formulations.
ENVIRONMENTAL SCIENCE-ADVANCES
(2023)
Article
Chemistry, Applied
Segun A. Ogundare, Vashen Moodley, James F. Amaku, Abdulrazaq O. Ogunmoye, Odunayo C. Atewolara-Odule, Oseyemi O. Olubomehin, Kehinde N. Awokoya, Nurudeen O. Sanyaolu, Adeola A. Ibikunle, Werner E. van Zyl
Summary: Melon seed shells were explored as a new source of nanocrystalline cellulose (NCC) for the synthesis of silver nanoparticles (AgNPs), and were found to have reducing capability. The isolated crystals (MSS-NCC) had a high crystallinity index and were rich in functional groups on the surface. The AgNPs synthesized using MSS-NCC as a reducing agent showed efficient catalytic activity in reducing nitrobenzene to aniline.
CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS
(2021)
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)