Article
Chemistry, Physical
Lingfeng Zhu, Yun Wang, Minji Wang, Yaping Xiong, Ze Zhang, Ji Yu, Yaohui Qu, Jianxin Cai, Zhenyu Yang
Summary: Inspired by the structure of areca, MnO@C composites with a core-shell structure were successfully prepared and demonstrated superior performance in lithium-ion batteries. The formation mechanism of the composites was successfully clarified through heterogeneous contraction and carbon pyrolysis processes.
Article
Chemistry, Physical
Rongda Ye, Jun Wang, Yanna Li, Wanchun Sun, Qizhang Huang, Sheng Gong, Xugang Shu
Summary: A series of eutectic hydrated salts were prepared by mixing Na2HPO4•12H2O and K2HPO4•3H2O, and it was found that adding appropriate deionized water improved their thermal properties; using SiO2 as support, the maximum content of eutectic hydrated salts in composite PCM reached 70%; the addition of nucleating agent in composite PCM reduced supercooling and enhanced material stability.
Article
Chemistry, Physical
Lin Yue, Yunmeng Cao, Yonghui Han, Zaixing Li, Xiao Luo, Yanfang Liu
Summary: The magnetic metal-organic framework composite Fe3O4@Sn-MOF with core-shell structure was successfully prepared by hydrothermal synthesis, showing excellent photocatalytic activity in degrading AR3R dye, attributed to effective charge separation, strong photo-response, and rich active sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Weicheng Chen, Xianghui Liang, Wanwan Fu, Shuangfeng Wang, Xuenong Gao, Zhengguo Zhang, Yutang Fang
Summary: The demand for a low-carbon lifestyle has led to the development of a novel form of functional macroencapsulated phase change composites that can convert and store energy from sunlight. This research improves the photothermal conversion efficiency and thermal conductivity of the composites, while also addressing the issue of leakage. The findings provide a new solution for the high-efficiency utilization of solar energy.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Applied
Vennapusa Jagadeeswara Reddy, Prakhar Dixit, Jitendra Singh, Sujay Chattopadhyay
Summary: The main objective of this study is to prepare completely biodegradable macrocapsules for thermal energy storage. Three different organic phase change materials were encapsulated inside barium crosslinked pectin shell. The results showed that the pectin-PCM capsules had high encapsulation efficiency and thermal stability, and could provide long-lasting thermal buffering effects.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Zihuan Zhang, Hui Mao, Yuying Kong, Panpan Niu, Jieyuan Zheng, Pingwei Liu, Wen-Jun Wang, Yuanyuan Li, Xuan Yang
Summary: In this study, advanced core-shell structure fibers based on plant-based nanocelluloses were obtained using a facile co-axial wet-spinning process. These fibers exhibited superior mechanical strength, flexibility, and large latent heat, while achieving efficient thermal regulation and solar-energy conversion and storage. By assembling nanoparticles and polymers, functional composite fibers can be constructed for advanced solar-energy-related applications.
Article
Chemistry, Physical
Zhongya Guo, Jiashi Wang, Lili Fu, Fangfang Qin, Huiyu Li, Lin Ge, Ke Zhang, Bin Li, Wenzhong Shen
Summary: A simple one-pot method was proposed to synthesize Sb@C enantioseparation material with a controllable spherical core-shell structure. The formation mechanism of the core-shell structure was clarified. The capping of tartaric acid enantiomer on the Sb-S substance and the possible separation mechanism by hydrogen bonding based on sterical matching were verified. The structure and enantioseparation capacity of the Sb@C materials can be controlled by adjusting the ratio of Sb/S. This work presents a feasible and relatively universal strategy to design enantioseparation materials with potential application.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Alina R. Garcia-Taormina, Chantal M. Kurpiers, Ruth Schwaiger, Andrea M. Hodge
Summary: Magnetron sputtering is a versatile deposition method for generating novel nano- and micro-lattice materials, but achieving uniform coatings on fine-featured structures remains a challenge. Evaluating different sputtering configurations, cathode geometries, and deposition parameters can help in understanding their implications on coating thickness and uniformity.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Wenhui Lin, Zhenjun Wang
Summary: A core-shell NiFe2O4@C@PPy composite microspheres were prepared using Sol-gel method and interfacial polymerization to enhance microwave absorption performance. The characterization analysis and wave absorption test results show that the core-shell structure nano-absorbing material exhibits good microwave absorption performance.
Article
Materials Science, Ceramics
Hao-Qiang Pang, Ting-Hui Fan, Tian Xia, Wen-Wei Qiao, Yan-Feng Gao
Summary: This study investigates the thermal conductivity and temperature response of silica aerogel doped with SiO2 micro hollow sphere particles (MHSP) using modeling and experimental testing. The results demonstrate a significant improvement in the thermal insulation performance of the aerogel when doped with SiO2 MHSP, particularly at larger temperature differences.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
Xudong Wu, Guanghui Song, Wangle Zhang, Hao Feng, Yichen Liu, Enling Huang, Xiaotian Lin, Yixin Yang, Daniel Q. Tan
Summary: In this study, an unconventional atomic layer deposition (ALD) method was used to construct the core-shell heterostructure of BaTiO3 nanoparticles, which were then incorporated as dilute nanofillers in a polyetherimide (PEI) film. The use of different shell materials with varying thermal conductivity and dielectric permittivity resulted in enhanced dielectric strength and dielectric constant of the composites. The study also revealed the favorable role of higher thermal conductivity in enhancing the dielectric strength of the PEI film, while the presence of a TiO2 shell induced inferior loss behavior under high electric fields. Finite element simulation further supported the positive effects of the core-shell particles on polarization and energy density distribution.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Phuong Thao Trinh, Sina Hasenstab, Markus Braun, Josef Wachtveitl
Summary: This study investigates the electron transfer processes in methylene blue-CdTe and methylene blue-CdTe/CdSe complexes. The research finds that the growth of the shell accelerates the electron transfer rate and changes the shape of the quantum dots. Transient absorption measurements show that QDs with a thin shell can achieve charge carrier multiplication, leading to increased charge transfer efficiency.
Article
Energy & Fuels
Jingmeng Sun, Junqi Zhao, Weiye Zhang, Jianuo Xu, Beibei Wang, Xuanye Wang, Jun Zhou, Hongwu Guo, Yi Liu
Summary: Phase change materials (PCMs) can reduce energy waste in construction by stabilizing daily temperature changes. A new type of shell-core PCM (E-shell PCM) with high latent heat potential and good structural stability was prepared through cation exchange and layer upon layer self-assembly. The thermal energy storage (TES) wood-plastic composites (WPC) manufactured using this E-shell PCM showed excellent morphological stability, high phase transition heat, thermal stability, heat storage performance, and mechanical strength. The introduction of expanded perlite (EP) improved heat and smoke suppression in the composites, making it a potential building material for temperature control.
Article
Chemistry, Physical
Zelong Wang, Yanan Zhang, Jungang Yi, Ning Cai, Jia Guo
Summary: Heat accumulation is a critical issue in the development of miniaturized, high-power density, and highly integrated electronic devices. The study introduces the development and characterization of highly thermally conductive yet electrically insulating Cu@Al2O3/epoxy composites, highlighting their potential application in thermal management.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Composites
Weicheng Chen, Xianghui Liang, Shuangfeng Wang, Xuenong Gao, Zhengguo Zhang, Yutang Fang
Summary: By optimizing eutectic PCM and combining lightweight porous carbonized melamine sponge as carrier with SiC-modified polyurethane thin-layer, a PCM@CMS@PUSiC composite material was successfully prepared, which improved thermal conductivity and mechanical performance, solved leakage issue, and ensured the stability of PCM function.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Peng Wang, Yifu Zhang, Hanmei Jiang, Xueying Dong, Changgong Meng
Summary: Aqueous energy storage systems are promising due to high safety, low cost and environmental friendliness. Recent research has focused on using nonmetal ions as charge carriers, with an emphasis on the excellent NH4+ storage performance of an ammonium vanadium oxide framework (NVO) in NH4Cl/PVA gel electrolyte. The NVO electrode displays significantly improved specific capacitance and cycle performance, showing potential for flexible aqueous NH4+-supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Tao Hu, Yang Wang, Xueying Dong, Yang Mu, Xiaoyu Pei, Xuyang Jing, Miao Cui, Changgong Meng, Yifu Zhang
Summary: This study reveals that the electrochemical properties of cobalt silicate are greatly influenced by critical factors during the synthesis process. Cobalt silicate compounds generated from different reaction systems exhibit differences in macrostate, microscopic morphology, composition, and valence, resulting in varying electrochemical performances for energy storage and the oxygen evolution reaction.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Peng Wang, Yifu Zhang, Ziyi Feng, Yanyan Liu, Changgong Meng
Summary: This study develops a dual-polymer strategy to enhance the electrochemical properties of hydrated vanadium oxide (HVO) for NH4(+) storages in a supercapacitor, achieving improved efficiency and cycle stability. The resulting material exhibits outstanding capacitance, long cycle stability, and potential practical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiaoyu Pei, Shengping Yi, Yunfeng Zhao, Yang Mu, Yuting Yu, Miao Cui, Changgong Meng, Chi Huang, Yifu Zhang
Summary: A biomass-derived 3D porous carbon/cobalt silicate architecture was developed as a support for loading nickel oxide species, resulting in an earth-abundant and non-noble-metal-based NiOx/C/Co2SiO4 electrocatalyst. The introduction of NiOx nanoparticles significantly enhanced the OER performance of the catalyst, demonstrating its potential as an economical and efficient OER catalyst.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Fuping Tian, Mengjie Zhang, Xinchi Zhang, Xiao Chen, Jinliang Wang, Yifu Zhang, Changgong Meng, Changhai Liang
Summary: In this study, a stable Ni-C catalyst with high selectivity and reusability in CAL hydrogenation was successfully prepared. By encapsulating metallic Ni nanoparticles in a carbon layer, the catalyst can be directly used in the reaction without pre-reduction.
JOURNAL OF MATERIALS SCIENCE
(2022)
Review
Electrochemistry
Yang Mu, Tingting Wang, Jian Zhang, Changgong Meng, Yifu Zhang, Zongkui Kou
Summary: Single-atom catalysts (SACs) with unique advantages such as high intrinsic activity and selectivity, tunable bonds and coordination, are among the most promising heterogeneous catalysts. Understanding metal-support interactions (MSIs) is crucial for rational design of SACs with enhanced catalytic properties. Engineering and modulation of MSIs play a significant role in advancing high-performing SACs.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
Article
Engineering, Environmental
Ziyi Feng, Yifu Zhang, Jingjing Sun, Yanyan Liu, Hanmei Jiang, Miao Cui, Tao Hu, Changgong Meng
Summary: Researchers successfully synthesized a new bimetallic ion intercalation VOH material KMgVOH, in which the interaction of Mg2+ and K+ greatly improved the electrochemical performance of the battery.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Xueying Dong, Xuyang Jing, Yang Mu, Yuting Yu, Cui Miao, Changgong Meng, Chi Huang, Yifu Zhang
Summary: This paper investigates a double-sandwich-like composite structure to improve the electrochemical performance of Co2SiO4 and achieves promising results. The integrated construction can avoid the shortcomings of traditional materials and protect Co2SiO4, leading to significant improvements in capacitance and cycle stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Yanyan Liu, Yifu Zhang, Hanmei Jiang, Jingjing Sun, Ziyi Feng, Tao Hu, Changgong Meng, Zhenghui Pan
Summary: This study presents a cathode material for aqueous zinc-ion batteries (AZIBs) with a pea-like core-shell structure and porous microstructure, which shows high performance through oxygen defect engineering and heterojunction engineering. The material provides additional active sites, improved electronic conductivity, and prevents aggregation, resulting in excellent battery performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Xiaoyu Pei, Yifu Zhang, Yang Mu, Miao Cui, Fuping Tian, Changgong Meng
Summary: In this study, a potential OER catalyst, cobalt oxide decorated amorphous carbon/cobalt silicate (Co-rich C/CoSi), was developed and showed improved OER performance. The decoration of cobalt greatly enhanced the electrocatalytic activity of carbon/cobalt silicate. The synthesized Co-rich C/CoSi composite exhibited lower overpotential and Tafel slope compared to C/CoSi, as well as large electroactive surface area and long-term stability.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Physical
Teng Du, Limin Ren, Yifu Zhang, Miao Cui, Yue Chao, Ying Ge, Nan Liu, Yonglin An, Changgong Meng
Summary: A novel CuPcs/MOR photocatalyst was synthesized and demonstrated to be effective for NOx removal. The composite catalyst CuPcs0.85/MOR2 exhibited a degradation rate of NO2 reaching 71.4% after 2 hours of irradiation, attributed to the synergistic effect between CuPcs and MOR. The zeolite MOR with adsorption properties increased active sites for CuPcs and facilitated charge transfer.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Yang Mu, Yifu Zhang, Xiaoyu Pei, Xueying Dong, Zongkui Kou, Miao Cui, Changgong Meng
Summary: This study reports an economical and promising OER catalyst composed of Fe-Co2SiO4 composite. The catalyst exhibits comparable or even higher catalytic activity than most transition metal oxide/hydroxide relevant composites in alkaline solution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
Hanmei Jiang, Wenbin Gong, Yifu Zhang, Xin Liu, Moaz Waqar, Jingjing Sun, Yanyan Liu, Xueying Dong, Changgong Meng, Zhenghui Pan, John Wang
Summary: This study addresses the bottleneck issue in the development of high-performance ZIBs by modifying the surface chemistry of V2O5 cathode nanomaterial. The doping of Al ions and the formation of oxygen vacancies improve the electrical conductivity and Zn2+ diffusion rate of V2O5, resulting in superior electrochemical performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hanmei Jiang, Yifu Zhang, Moaz Waqar, Jin Yang, Yanyan Liu, Jingjing Sun, Ziyi Feng, Jianguo Sun, Zhenghui Pan, Changgong Meng, John Wang
Summary: In this study, a new dual-ion-in-sequence intercalation strategy is proposed to address the structural instability and sluggish diffusion kinetics of vanadium oxides in ZIBs. The Zn2+ storage mechanism evolves from solid-state ion diffusion kinetic into intercalation pseudocapacitance, resulting from the enlarged interlayer spacing. The improved ionic diffusivity, intercalation pseudocapacitance, and fast charge transferability contribute to the impressive rate capability and cycling stability of the ZIBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Peng Zhou, Siwei Zhang, Zhuoqun Ren, Yazhou Wang, Yifu Zhang, Chi Huang
Summary: The combustion performance of solid propellants is crucial for the overall application of rockets. Adding a catalyst to change the decomposition behavior of ammonium perchlorate (AP) is an effective strategy to control the combustion of solid propellants, and the synergistic catalysis of AP thermal decomposition by a bimetallic ZnCo-ZIF catalyst is more efficient. The study analyzed the thermal decomposition behavior of AP, the actual catalytic component, and the synergistic mechanism of the two metals.
INORGANIC CHEMISTRY FRONTIERS
(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)
