Article
Chemistry, Physical
Chia-En Hsieh, Ching Chang, Shivam Gupta, Chung-Hsuan Hsiao, Chi-Young Lee, Nyan-Hwa Tai
Summary: This study demonstrates a novel fabrication method for supercapacitor electrodes composed of CoMn2O4 nanosheets coated onto carbon nanotubes grown on a stainless-steel mesh. By controlling the deposition time of the nanosheets, favorable morphology and excellent capacitance can be achieved. The material, which does not require binders or additives, exhibits high specific capacitance and is of significant importance for practical energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Electrochemistry
Jieqiong Qin, Zhi Yang, Feifei Xing, Liangzhu Zhang, Hongtao Zhang, Zhong-Shuai Wu
Summary: Two-dimensional mesoporous materials (2DMMs) combine the merits of 2D materials and mesoporous materials, offering a promising solution for high-performance electrode/catalyst materials in energy storage and conversion devices. This review summarizes the recent advances in 2DMMs for ESCDs, including their structural advantages, chemical synthesis strategies, and applications in supercapacitors, rechargeable batteries, and electrocatalysis.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Shubhangi B. Bandgar, Madagonda M. Vadiyar, Chitra L. Jambhale, Jin-Hyeok Kim, Sanjay S. Kolekar
Summary: A rapid and low-cost ice crystal-assisted precipitation method was used to synthesize self-assembled structures of nickel ferrite nanoparticles and zinc ferrite nanorods, enhancing the overall performance of supercapacitors. The porous void-rich structures of the nanoparticles and nanorods provided excellent charge storage properties, with high specific capacities and durability demonstrated in the electrodes. Additionally, a flexible asymmetric supercapacitor device fabricated from these materials showed superhigh energy density and excellent long-term stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Yongjie Xu, Yong Yue, Fanan Kong, Shijie Ren
Summary: The development of graphyne-type carbon materials, constructed by sp(2) and sp hybridized carbon atoms, holds great promise for energy and environmental applications. In this study, nitrogen-doped graphyne materials were synthesized using a cross-coupling reaction and demonstrated high capacitance and cycling properties after heat treatment. The copolymerization strategy presented here provides a rational design principle for constructing novel graphyne-type carbon materials for energy storage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Dongyao Zhang, Chuanchang Li, Niangzhi Lin, Baoshan Xie, Jian Chen
Summary: Composite phase change materials were synthesized from KH-550-decorated mica and poly-ethylene glycol by vacuum impregnation method, with the addition of expanded graphite to improve thermal conductivity and storage capacity. The Md/EG/PEG composite showed enhanced thermal stability and potential for energy conservation in buildings.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
M. Vijatovic Petrovic, F. Cordero, E. Mercadelli, E. Brunengo, N. Ilic, C. Galassi, Z. Despotovic, J. Bobic, A. Dzunuzovic, P. Stagnaro, G. Canu, F. Craciun
Summary: The flexible lead-free piezoelectric composite films prepared by hot pressing showed promising performance in efficiently and safely powering small-scale electronic devices using mechanical energy. With increasing active phase content, the permittivity and elastic modulus increased, demonstrating excellent properties for energy storage and energy harvesting applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Suyao Man, Xueyang Leng, Jinlong Bai, Zhongqiu Li, Lingling Xu
Summary: In this study, BiFeO3/Bi2O3 composite was designed by a simple and cost-effective flame annealing process to enhance the photoelectrocatalytic activity of BiFeO3-based ferroelectrics. The obtained BiFeO3/Bi2O3 photocathode exhibited improved PEC performance, attributed to reduced carrier recombination, promoted interfacial charge transfer, and increased active sites. Our work provides a promising approach to improve the performance of ferroelectric photoelectrodes.
Article
Chemistry, Multidisciplinary
Xiaobo Chen, Zimin Ding, Huan Yu, Huiran Ge, Weiwei Liu, Shixin Sun
Summary: The novel organ-like Ti3C2Tx/CuCo2S4 composite demonstrated superior performance in 6 M KOH electrolyte, with the MXene/CuCo2S4 composite as the positive electrode and activated carbon as the negative electrode in an asymmetric supercapacitor (ASC) device. The ASC device showed stable charge-discharge cycling performance and high capacity retention over extended floating time, highlighting the potential of MXene/CuCo2S4 as a promising electrode material for supercapacitors.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Shibo Shang, Xianyou Wang, Feng Jiang
Summary: The usage of Li2O2 can greatly improve the electrochemical performances of NCA cathode material, whether in poly-crystal or single crystal forms. Results show that single crystals of LiNi0.88Co0.09Al0.03O2 prepared using Li2O2 exhibit excellent initial discharge capacity and cycle retention rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Materials Science, Multidisciplinary
Jiawei Zhang, Yu Li, Zhen Chen, Qian Liu, Qingguo Chen, Minghua Chen
Summary: Electrochemical batteries and supercapacitors are considered as ideal rechargeable technologies for next-generation energy storage systems. The key to further commercialize electrochemical energy storage devices lies in designing and investigating electrode materials with high energy density and cycling stability. Amorphous materials have recently attracted much attention due to their defects and structural flexibility, providing a new avenue for electrochemical energy storage. In this perspective, we summarize recent research on amorphous materials for electrochemical energy storage, covering their advantages, synthesis strategies, application, modification, as well as the challenges and future prospects for development.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Yangeng Li, Keyan Sun, Yan Kou, Hanqing Liu, Lu Wang, Nan Yin, Hongsheng Dong, Quan Shi
Summary: A simple and efficient one-step strategy of constructing graphene-based composite phase change materials (PCMs) with a high loading capacity of polyethylene glycol (PEG) up to 95 wt% is proposed. These composite PCMs exhibit a relatively constant phase change enthalpy and a superior solar-thermal conversion efficiency as high as 93.7%.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Fulya Ulu Okudur, Satish Kumar Mylavarapu, Mohammadhosein Safari, Dries De Sloovere, Jan D'Haen, Bjorn Joos, Periyasamy Kaliyappan, An-Sofie Kelchtermans, Pieter Samyn, Marlies K. Van Bael, An Hardy
Summary: This study investigates the influence of pre-calcination temperature, time, and oven type on the particle size and morphology of LNMO powder, and subsequently on the electrochemical performance of lithium-ion batteries. By optimizing the particle size and morphology of LNMO powder, superior initial discharge capacity and capacity retention can be achieved for Li vertical bar LNMO coin cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Olena Okhay, Alexander Tkach
Summary: This review surveys recent achievements in the development of supercapacitors (SC) based on composites of carbon-derived materials, discussing factors influencing specific capacitance and overviewing specific energy, power, and cycling stability of SC with composite electrode materials.
Article
Chemistry, Physical
Priyanshu Goel, Akash Deep, Sunita Mishra
Summary: Perovskite phase metal oxides are extensively explored for their flexibility in structure and composition, as well as excellent electrocatalytic activity. Their composite with porous and conductive materials has potential applications in energy storage devices. In this study, a highly porous Cu-MOF(HKUST-1)/LaNiO3 heterostructure composite electrode was synthesized and investigated for its pseudocapacitive properties in different electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Physical
Zhaodi Tang, Hongyi Gao, Xiao Chen, Yafei Zhang, Ang Li, Ge Wang
Summary: Phase change materials, with the ability to store thermal energy efficiently, can improve energy utilization, but traditional passive heat absorption lacks proactive control. Photo-responsive materials bring new potential to the field of PCMs, meeting specific requirements and providing new functions for PCMs.
Article
Chemistry, Physical
Shan Liang, Yechao Han, Wanglinhan Zhang, Tianyan Zhong, Hongye Guan, Yafeng Song, Yan Zhang, Lili Xing, Xinyu Xue, Guanglin Li, Yang Zhan
Summary: A new self-powered wearable system that can monitor body vital signs, transmit neural stimulating signals into the brain, and enhance sports endurance performance has been developed. This system works without external electricity power and is powered by the body itself, showcasing a novel strategy for wearable brain-machine-interface systems in sports and health monitoring.
Article
Multidisciplinary Sciences
Yang Sun, Liqin Wang, Jiameng Niu, Ting Ma, Lili Xing, Aowei Song, Wenhua Wang, Yuan Shen, Jiangcun Yang
Summary: There are significant geographical differences in the distribution of ABO blood groups in China, with a lower frequency of the r [O] gene in the north and a lower frequency of the q [B] gene in the south.
Article
Nanoscience & Nanotechnology
Lihong Hu, Tianyan Zhong, Zhihe Long, Shan Liang, Lili Xing, Xinyu Xue
Summary: An innovative self-powered sound-driven humidity sensor for wearable intelligent dehydration monitoring system has been proposed. The sensor utilizes the piezoelectric/triboelectric effect of ZnO nanoarrays/PTFE membrane to sense humidity. The device can convert sound energy into electrical output without any external power supply and actively monitor the humidity of exhaled breath.
Article
Instruments & Instrumentation
Yifeng Peng, Zhihe Long, Shan Liang, Tianyan Zhong, Meihua Chen, Lili Xing, Xinyu Xue
Summary: A potential intelligent multifunctional diaper with flexible sensors and data processing/transmitting units can monitor baby's urination, detect physiological parameters, and transmit information to parents' mobile terminal.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Chemistry, Physical
Hongye Guan, Pingjin Zou, Rui Lin, Ling Xiao, Zengyi Fang, Junyang Chen, Tao Lin, Yuan Wang, Yifeng Peng, Tianyan Zhong, Biqin Zhang, Jinyi Lang, Yan Zhang, Lili Xing, Meihua Chen, Xinyu Xue
Summary: Researchers have developed a new implantable self-powered therapeutic pellet that provides wireless hybrid therapy for cancer treatment. The pellet utilizes ultrasound energy to power a light-emitting diode illuminant and control circuit, delivering therapeutic doses of light to tissues for photodynamic therapy alongside direct sonodynamic therapy. In vivo studies on mice have demonstrated its high efficiency in treating breast cancer, surpassing the individual effectiveness of either PDT or SDT. This research not only has significant implications for cancer treatment but also highlights the critical interplay between current clinical therapies and future precision therapies.
Article
Chemistry, Physical
Hongye Guan, Yong Tang, Zhihe Long, Rui Lin, Shan Liang, Fuqiang Zhu, Tianyan Zhong, Yaming Zhang, Yaowei Fan, Zhen Wang, Chuang Shi, Wanli Ma, Sheng Sun, Meihua Chen, Lili Xing, Yan Zhang, Xinyu Xue, Yang Zhan
Summary: Neural regulation that is remotely controlled by medical professionals or AI agents can provide rapid, precise, and personalized intervention while optimizing the allocation of medical resources. Researchers have developed a self-powered wireless brain probe that can be controlled by cellphone audio tones and AI video analysis. The probe consists of a biocompatible pedestal with stimulation electrodes, magnets, and a signal-intensifying resonator with a piezoelectric powered modulation circuit. It can be wirelessly powered and controlled by programmed audio tones transmitted from other cellphones. Combined with AI-enabled video monitoring, the probe has shown therapeutic effects in relieving seizure events in epileptic mice.
Article
Biology
Lili Xing, Shilin Liu, Libin Zhang, Hongsheng Yang, Lina Sun
Summary: The MITF gene in the sea cucumber Apostichopus japonicus regulates body color differentiation through expression differences and regulation of downstream genes. These findings provide a foundation for understanding the mechanisms underlying body color formation and gene regulation in sea cucumbers, and support sea cucumber breeding and industry development.
Article
Thermodynamics
Jinglan Wang, Dandan Xu, Xuezhi Gao, Qiang Xu, Zhandong Wang, Jiuzhong Yang, Lili Xing, Junyu Tao, Beibei Yan, Guanyi Chen, Zhanjun Cheng
Summary: This study investigates the oxidation characteristics of N-methyl pyrrole (NMP) through experiments and kinetic modeling. The experiments were conducted at various temperatures and equivalence ratios, and the species formed during NMP oxidation were measured using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). A comprehensive kinetic model, based on previous models, was developed and successfully reproduced the experimental results. The study reveals the dominant role of hydrogen abstraction reactions on the methyl group and the formation of nitrogen-containing compounds such as pyridine and pyrrole during NMP oxidation.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Lili Xing, Yunrui He, Jinglan Wang, Liuchao Lian, Zhanjun Cheng, Xuetao Wang, Mengjie Liu
Summary: For the first time, the rate constants for H-initiated reactions of 2-furfuryl alcohol (2FFOH) were calculated using a high-level quantum chemical method combined with the Rice-Ramsperger-Kassel-Marcus (RRKM) theory/Master equation method. The study revealed the major product channels and the site-specific rate constants for each reaction channel. The updated kinetic model based on these new calculations showed improved predictions of 2FFOH decomposition and speciation profiles during 2FFOH pyrolysis.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Lili Xing, Jintao Cui, Liuchao Lian, Jinglan Wang, Huanhuan Wang, Yunrui He, Shaowei Wang, Xuetao Wang, Liyou Xu, Zhanjun Cheng
Summary: In this study, the reactions between 2-furfuryl alcohol (2FFOH) and OH radical were investigated by quantum chemical calculations. The energy diagram and rate coefficients of the reactions were calculated at different temperatures and pressures. The results showed that H-abstraction from the side chain of 2FFOH occurred faster than from the ring below 2300 K. Additionally, there was a slightly positive pressure dependence of the total rate coefficients in the temperature range of 500-1000 K. The findings of this study could contribute to the understanding of the chemical reaction mechanism of furan-based fuels in the atmosphere and combustion.
Article
Engineering, Civil
Shengjiang Sun, Lili Xing, Peng Gui, Bo Li, Hangyu Li, Lei Zhao, Kuihua Mei
Summary: Steel-basalt fiber composite bars (SBFCBs) possess excellent properties such as strength, modulus, toughness, corrosion resistance, and cost-effectiveness. This study experimentally assessed the bond-slip performance of SBFCBs in concrete through pullout and beam bond tests. The various factors influencing bond performance were analyzed, and the bond mechanism between SBFCBs and concrete was discussed.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2023)
Article
Chemistry, Physical
Rui Lin, Yaowei Fan, Yan Xie, Dengyun Ge, Shan Liang, Hongye Guan, Meihua Chen, Yan Zhang, Lili Xing, Xinyu Xue, Yang Zhan
Summary: A new self-powered wearable body-detecting/brain-stimulating system has been developed for monitoring and restraining epilepsy. The system can monitor body motion in real time, transmit stimulus signals to the brain, and significantly reduce the duration of epileptic seizures.
Article
Environmental Sciences
Fang Su, Shilin Liu, Lili Xing, Da Huo, Hongsheng Yang, Lina Sun
Summary: In this study, RNA sequencing was performed on six key stages of Apostichopus japonicus development, and a total of 32,353 genes were identified. WGCNA analysis revealed that genes in the blue, yellow, and darkslateblue modules were highly correlated with the gastrula, auricularia, and blastula stages, respectively. Further analysis showed that these genes were mainly associated with signal transduction, cellular immunity, and extracellular matrix functions. The results of this study provide a comprehensive understanding of the molecular characteristics of sea cucumber embryonic development and theoretical guidance for larva rearing in sea cucumber culture.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Jungang Tang, Xuetao Wang, Haojie Li, Lili Xing, Mengjie Liu
Summary: The treatment of NOx has become an urgent issue due to its difficulty in degradation in air and its negative impact on public health. Among various technologies, selective catalytic reduction (SCR) using ammonia as the reducing agent is considered as the most effective and promising technique. However, the development of high-efficiency catalysts for SCR is severely limited due to the poisoning and deactivation effect by SO2 and H2O vapor. This review summarizes the recent advances in enhancing the catalytic activity and stability of manganese-based catalysts in low-temperature NH3-SCR, as well as discussing the challenges and potential solutions for designing a catalytic system with high resistance to SO2 and H2O.
Article
Fisheries
Lili Xing, Lingyu Wang, Femke Roos, Michelle Lee, Gregory A. Wray
Summary: Sea urchins are important mariculture species and model organisms in developmental biology. Cis-regulatory elements control development and physiology by regulating gene expression. Mutations affecting these sequences contribute to phenotypic diversity. Cis-regulatory targets offer new breeding potential for the future.
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)
