Article
Engineering, Chemical
Weijie Cheng, Xing Wang, Jianfeng Huang, Yong Wang, Lixiong Yin, Jiayin Li, Xingang Kong, Qi Feng
Summary: The study successfully synthesized a high-performance lithium-ion battery anode material with excellent rate performance, cycling stability, and reversible capacity. The novel nanocomposite exhibits outstanding performance at high current densities, which is of significant importance for the technological advancement of lithium-ion batteries.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Guo-Yan Wang, Yan-Long Teng, Xian-Fa Zhang, Meng Zhang, Gang Xu, Zhao-Peng Deng, Li-Hua Huo, Shan Gao
Summary: The cheap biomass-derived carbon-encapsulated strategy has been successfully used to enhance the performance of metal oxide-based anodes for lithium-ion batteries. In this study, graphitic carbon-encapsulated Co3O4 material with a mesoporous hierarchical structure was prepared using poplar branch as a biotemplate and carbon source. The impact of different carbon contents on the nanostructure and electrochemical performance of composites was investigated. The Co3O4/GC(350) material oxidized at 350 degrees C exhibited excellent lithium storage performance, with good rate capability and long cycling stability.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Sang-eun Bak, Woowon Chung, Muhammad A. Abbas, Jin Ho Bang
Summary: TiNbO4 is a recently discovered Li host material that stores Li-ions via a purely single-phase reaction. It demonstrates intercalation pseudocapacitance for Li storage in both bulk and nanostructured states, indicating an intrinsic pseudocapacitance mechanism for charge storage.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
He Lin, Nan Lou, Dongdong Yang, Rencheng Jin, Yong Huang
Summary: The study introduced two MoSSe/graphene heterostructures which not only overcame the drawbacks of MoSSe but also integrated the advantages of individual components. Through computations, it was found that the heterostructures exhibited good structural stability, high ion conductivity, and mechanical stiffness, making them potential materials for high-performance LIBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yong Wang, Liyun Cao, Jianfeng Huang, Yongqiang Feng, LingJiang Kou, Fangmin Wang, Danyang He, Ying Su, Ling Guo
Summary: The introduction of protective layers and defects in electrodes is an effective strategy to improve the reversible capacity and cyclic stability of batteries. In this study, copper vanadate oxide with various morphologies is synthesized using a cuprous oxide template. Oxygen vacancies and an amorphous copper vanadium oxide shell are introduced into the electrode, leading to superior rate performance and cyclic stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Meng Zhang, Zhao-Peng Deng, Xian-Fa Zhang, Li-Hua Huo, Shan Gao
Summary: The reuse of waste biomass resources for sustainable development is a popular theme, and the synthesis of CO3O4/C-2 nanocomposites from waste scallion root has shown excellent performance in lithium storage, with high capacity and long-cycling stability attributed to its unique nanostructure.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Guilong Liu, Lifang Xu, Yuqing Li, Donglei Guo, Naiteng Wu, Changzhou Yuan, Aimiao Qin, Ang Cao, Xianming Liu
Summary: The fabricated anatase-rutile heterostructure TiO2 electrode with abundant oxygen vacancies exhibited enhanced electronic/ionic transport and improved pseudo-capacitive behaviors. The theoretical calculation confirmed that the heterostructure favored the connection between TiO2 and carbon layers, leading to improved electronic conductivity and lower migration energy barriers for Li+ and Na+.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Chuanliang Wei, Liwen Tan, Yuchan Zhang, Baojuan Xi, Shenglin Xiong, Jinkui Feng
Summary: Organic electrode materials have potential for rechargeable batteries, but low electrical conductivity and dissolution in organic liquid electrolytes hinder their development. MXene/organics heterostructures are designed to address these issues, improving rate capability and cycling performance. These heterostructures can also be applied in other fields.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Miao Jia, Yuhong Jin, Chenchen Zhao, Qianqian Chang, Peizhu Zhao, Hao Wang, Mengqiu Jia
Summary: ZnSe/rGO composites were synthesized through a simple hydrothermal method, showing improved performance, stability, and cyclic life of the battery. The composite exhibited excellent performance under different current densities and maintained stable reversible capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Jing-Lan Wei, Zi-Yu Wang, Yan-Hui Sun, Guang-Li Zhang, Dong-Cai Guan, Jun-Min Nan
Summary: NSG@SFO is a novel anode material for LIBs with high charge/discharge capacity and charge capacity. The excellent performance of this material is attributed to the enhancing effect of N and S co-doped reduced graphene oxide on SFO.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Lichong Bai, Xiaozhe Pang, Yanfang Sun, Xiao Zhang, Jinxue Guo
Summary: Developing advanced electrode materials for sodium storage faces challenges such as slow Na+ diffusion kinetics and structure damage. Pseudocapacitance is seen as a promising solution for fast and stable sodium storage. A hybrid material approach with nitrogen-doped graphene nanosheets packed SnP2O7 particles has shown high capacity and stable cyclic property for sodium storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Jianyu Zhang, Hosop Shin, Wei Lu
Summary: This study demonstrates the top-down synthesis approach for mass-producing phosphorene-graphene nanosheet composites with superior performance. The hybrid material exhibits high reversible capacities at high current densities and maintains structural robustness for long-term cyclability. This scalable synthesis method opens up possibilities for practical applications of phosphorene-graphene materials in batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Hui Xu, Liquan Yang
Summary: A hierarchically porous composite of amorphous MoO2/C nanospheres and interconnected graphene networks (MoO2/C-rGO) was fabricated, which showed enhanced electrochemical performance due to its oxygen-deficient amorphous nanostructure, open diffusion channels, and continuous conductive networks. This composite material has potential applications in lithium-ion batteries.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Bing Wei, Shixin Yan, Daozeng Jia, Chunbin Feng, Jiyong Yin, Zhenting Wang
Summary: A facile micro-arc oxidation process combined with graphene as a conductive additive was developed to synthesize SnO2 for improved lithium-ion battery performance. The integration of the current collector and the active substance was achieved using a simplified method. The designed material exhibited excellent energy capacity of 482 mAh/g at a current density of 1.0 C after 200 cycles and a good rate performance of 746 mAh/g at a current density of 0.2 C. This work serves as a starting point for the preparation of other metal oxides using micro-arc oxidation for lithium storage applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Monika Michalska, Jiri Pavlovsky, Pavlina Peikertova, Sylva Holesova, Krishnan Shanmugam Anuratha, Jeng-Yu Lin
Summary: A modified sol-gel method was used to synthesize a nanocrystalline composite as an efficient anode material for lithium-ion batteries. The composite exhibited a mesoporous/microporous microstructure and showed improved electrochemical performance, especially at high C rates.
SOLID STATE IONICS
(2022)
Article
Chemistry, Multidisciplinary
Keke Gao, Rui Xu, Yunxiang Chen, Zongtao Zhang, Jiashuo Shao, Haipeng Ji, Liying Zhang, Shasha Yi, Deliang Chen, Junhua Hu, Yanfeng Gao
Summary: The paper presents a strategy to enhance the electrochemical properties of lithium-sulfur batteries by using TiO2-carbon nanocomposites embedded hierarchical porous carbon interlayers. The interlayers effectively immobilize polysulfides and improve the redox reaction kinetics, resulting in improved battery performance.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Xinghui Hou, Yawu Gao, Haipeng Ji, Shasha Yi, Zongtao Zhang, Tao Li, Yu Wang, Lei Yuan, Rui Zhang, Jing Sun, Deliang Chen
Summary: The hierarchical layered nanostructure of MoO3 obtained after calcination of hydrothermally grown MoS2 showed high sensitivity and selectivity towards triethylamine. The M20 sensor exhibited a high response of 2.42 at 0.1 ppm TEA and a response rate of 125 at 50 ppm, with fast response and recovery times.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Honghao Yu, Runwei Wang, Zongtao Zhang, Shilun Qiu
Summary: In this study, a smart Pickering nanoreactor with a yolk-shell structure and separated active sites was successfully prepared, showing high catalytic efficiency in water. The nanoreactor could adsorb hydrophobic molecules with specific functional groups and catalyze the Knoevenagel-hydrogenation reaction through a real one-pot cascade reaction.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shun Wang, Zongtao Zhang, Runwei Wang, Shilun Qiu
Summary: In this study, an amphiphilic ZSM-5 material loaded with metal Rh nanoreactor was successfully synthesized for the hydrotreating of nitroaromatic hydrocarbons under green conditions. The modification of ZSM-5 with amino and octyl groups enabled the fixing of metal Rh and enhanced the enrichment capacity for organic matter.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Zeshan Xiong, Beibei Sun, Houbing Zou, Runwei Wang, Qianrong Fang, Zongtao Zhang, Shilun Qiu
Summary: This study reports a versatile and efficient strategy of amorphous-to-crystalline transformation for the fabrication of highly crystalline HCOFs. The approach allows for the control of hollowing process and crystallization process by regulating the dynamic imine exchange reaction. Various HCOFs with ultrahigh surface areas and uniform morphologies were successfully synthesized, and COF-based yolk-shell nanostructures with functional interior cores were also fabricated. The obtained metal@HCOFs catalysts showed enhanced catalytic activity and size-selectivity, highlighting the significance of nucleation-growth kinetics of COFs in tuning their morphologies, structures, and applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Organic
Sen Lin, Bo Lin, Zongtao Zhang, Jianhui Chen, Yanshu Luo, Yuanzhi Xia
Summary: Using FeCl2 as a catalyst, a facile imidization reaction of phosphines with N-acyloxyamides was conducted at room temperature under air atmosphere, resulting in the formation of N-acyliminophosphoranes. The iminophosphoranyl moiety in the product can be used as an effective directing group for controllable ortho C(sp2)-H bond amidation reactions under Rh(III) catalysis.
Article
Energy & Fuels
Yong Zhu, Yongji Yao, Zhang Chen, Zongtao Zhang, Pan Zhang, Zefeng Cheng, Yanfeng Gao
Summary: This study investigates the application of tungsten oxide photochromic film in smart windows, and proposes the use of tungsten oxide quantum dots to solve the challenges related to coloration and photochromic response. The results show that the WQDs-PVA transparent film prepared by casting method exhibits fast response to ultraviolet light and large optical modulation range.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Nanoscience & Nanotechnology
Wenbo Liu, Deguang Zhang, Runwei Wang, Zongtao Zhang, Shilun Qiu
Summary: The focus of designing and synthesizing composite catalysts with high photocatalytic efficiency is to regulate nanostructures and optimize heterojunctions. By increasing the contact area between catalysts, additional reaction sites can be established, leading to faster charge carrier transfer and reaction.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Shiyu Hu, Guohao Yan, Liying Zhang, Shasha Yi, Zongtao Zhang, Yu Wang, Deliang Chen
Summary: In this study, ChlCu-modified ZnO nanorods were prepared and treated with EDTA to improve their photoactivity and adsorption selectivity to Cu2+. The optimal E-ChlCu/ZnO sample showed excellent colorimetric detection performance for Cu2+.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Kai Lv, Yong Zhu, Lei Wang, Zhang Chen, Zongtao Zhang, Yanfeng Gao
Summary: A series of near-infrared reflective pigments based on CaAl(12x-y)Co(x)Ti(y)O19 were prepared to reduce the carcinogenic cobalt content in pigments. The pigment CaAl11.7Co0.1Ti0.2O19, with a cobalt content of only 0.87% by mass, exhibited excellent color properties (64.89, 3.88, -40.30) and near-infrared reflectance (approximately 70%). The doping concentration of titanium relative to cobalt significantly influenced the coordination structure of cobalt in hibonite, thereby affecting the optical properties of the obtained samples. A model house test and simulation using EnergyPlus software showed that using the CaAl11.7Co0.1Ti0.2O19 coating can reduce cooling energy consumption by 24.75% in a warm city (Haikou).
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Li Wang, Zhang Chen, Xue Wang, Liying Zhang, Zongtao Zhang, Qi Zhao, Yanfeng Gao
Summary: In this study, Fe3O4@C 3D foam was prepared and its microwave attenuation performances and mechanisms were studied. By adjusting the content of Fe3O4@C 3D foam in paraffin composites, the low-frequency microwave attenuation capacity could be effectively optimized. This method provides a new perspective for preparing lightweight and high performance low-frequency microwave absorbing materials.
JOURNAL OF MATERIOMICS
(2023)
Article
Chemistry, Physical
Xiaoyun Qiao, Zeshan Xiong, Zongtao Zhang, Runwei Wang, Shilun Qiu
Summary: This study proposes a promising synthetic method for functionalized titanium dioxide (TiO2) by combining photoactive porphyrin-periodic mesoporous organosilica (PMO) with hollow TiO2 nanospheres, forming a multi-component synergistic system. The prepared composite TiO2@Pro exhibits photocatalytic activity in the aerobic oxidation of sulfide in the aqueous phase under visible light. The high reactivity is attributed to the catalyst's large specific surface area, amphiphilicity, wide visible light absorption, and high electron-hole pair separation rate. This strategy provides a new approach for designing TiO2-based photocatalysts for heterogeneous catalysis under visible light.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Deguang Zhang, Wenbo Liu, Pengyu Guo, Zheng Wang, Haijiao Xie, Runwei Wang, Zongtao Zhang, Shilun Qiu
Summary: This study introduces a coordination process to synthesize g-C3N4@MoS2/C nanosheets with excellent photocatalytic hydrogen production performance. The large surface area of g-C3N4, highly dispersed MoS2 cocatalyst, conductive route of the carbon structure, and the synergy during the charge transfer process contribute to the improved catalytic ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Multidisciplinary
Zongtao Zhang, Liangmiao Zhang, Yang Zhou, Yuanyuan Cui, Zhang Chen, Yinping Liu, Jin Li, Yi Long, Yanfeng Gao
Summary: Thermochromic energy efficient windows are an important technology for advanced architectural windows with energy-saving capabilities. This review summarizes recent progress in promising thermochromic systems, including their structures and regulation of properties at the micro-/mesoscale, as well as their integration with other emerging energy techniques. The challenges and opportunities in thermochromic energy-efficient windows are outlined to promote further scientific investigations and practical applications in building energy conservation.
Article
Chemistry, Physical
Rui Xu, Jiashuo Shao, Keke Gao, Yunxiang Chen, Jin Li, Yifei Liu, Xinghui Hou, Haipeng Ji, Shasha Yi, Liying Zhang, Chuntai Liu, Xiao Liang, Yanfeng Gao, Zongtao Zhang
Summary: A novel electrolyte-based strategy was proposed by adding a small amount of the antistatic agent SN into a routine ether electrolyte, which addressed the issues of polysulfide shuttling and slow redox kinetics in lithium-sulfur batteries. The addition of SN led to rapid flocculation of polysulfide intermediates and improved the redox kinetics, resulting in highly stable Li-S batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)