Article
Chemistry, Multidisciplinary
Saravanan Nagappan, Anandhu Mohan, Anju Maria Thomas, Jong-Man Yoo, Nadim Eid, Ildoo Chung, Bruno Ameduri, Chang-Sik Ha
Summary: The short alkyl-chain fluoro surfactant showed higher efficiency in producing monodispersed SiNPs compared to long alkyl-chain fluoro or non-fluorinated surfactants.
Article
Materials Science, Multidisciplinary
Teruya Goto, Riku Nitta, Takuya Nukui, Mitsunobu Takemoto, Tatsuhiro Takahashi
Summary: The research aimed to combine diamond particle surfaces with external moieties using a reactive polymer, Pvozo, with reactive oxazoline side chains. The study confirmed the chemical reactivity of oxazoline with carboxylic acid and quantified the amount of reacted and unreacted oxazoline on the surface. The formation of a uniform monolayer of nanosized Pvozo on micron-sized diamond particles was successfully achieved and confirmed by various analytical techniques.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Physical
Jeongmo Kim, Zijun Wang, Khalid Lahlil, Patrick Davidson, Thierry Gacoin, Jongwook Kim
Summary: Concentrated colloidal suspensions of nanorods often exhibit liquid-crystalline behavior. The transition to a nematic liquid-crystalline phase can be described qualitatively by Onsager's theory for hard rods. This theory explains that the volume fraction at the transition decreases with increasing aspect ratio and that electrostatic repulsion between rods can increase their effective diameter, leading to a decrease in volume fraction. In this study, ligand-stabilized LaPO4 nanorods dispersed in an apolar medium showed the counter-intuitive behavior of nematic self-assembly occurring at an extremely low volume fraction, lower than observed with charged-stabilized rods in a polar solvent. The volume fraction at the transition increased with increasing concentration of ligands, similar to the effect of increasing ionic strength in polar media.
EUROPEAN PHYSICAL JOURNAL E
(2023)
Article
Food Science & Technology
Mojtaba Delfanian, Mohammad Ali Sahari, Mohsen Barzegar, Hassan Ahmadi Gavlighi
Summary: The research evaluates the impact of alkyl chain length on the antioxidant activity mechanism of gallic acid ester derivatives in bulk phase oil. A combinational kinetic model is used to determine oxidation parameters, with better estimation than the tangent method. Nonlinear behavior is observed for inhibitory activities of antioxidants in soybean triacylglycerols. Methyl gallate shows the highest inhibitory effect during lipid peroxidation. The study confirms the reliability of the combinational kinetic model in determining oxidation parameters.
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Maximilian Spellauge, Meike Tack, Rene Streubel, Matthias Miertz, Kai Steffen Exner, Sven Reichenberger, Stephan Barcikowski, Heinz Paul Huber, Anna Rosa Ziefuss
Summary: Pulsed laser fragmentation of microparticles is a synthesis method for producing high-purity nanoparticles from any material. By studying the fragmentation mechanism of single IrO2 microparticles in water, the contribution of stress-mediated processes is highlighted. The synthesis of nanoclusters from multiparticle fragmentation achieved high efficiency and catalytic activity, making them promising candidates in electrocatalytic sensing. These insights pave the way for laser fragmentation of microparticles to become a versatile and scalable technique for nanomaterial design and development.
Article
Polymer Science
Yina Li, Xiangyang Xu, Hongye Zhao, Shanshan Wei, Qinghua Lu, Lei Dai, Lin Yang
JOURNAL OF APPLIED POLYMER SCIENCE
(2017)
Article
Chemistry, Physical
Xuezhang Liu, Tao Yu, Qiuping Wei, Zhiming Yu, Xiangyang Xu
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2012)
Article
Chemistry, Multidisciplinary
Shanshan Wei, Feng Yao, Xiangyang Xu, Junming Yang, Xiang Xie, Xianggang Li
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2013)
Article
Materials Science, Multidisciplinary
Xianghui Fu, Zezong Chen, Xiangyang Xu, Lihua He, Yunfeng Song
Article
Electrochemistry
Hongye Zhao, Xiangyang Xu, Yunfei Yao, Huamin Zhu, Yina Li
Article
Chemistry, Physical
Hongye Zhao, Xiangyang Xu, Yunfei Yao, Yina Li
APPLIED SURFACE SCIENCE
(2020)
Article
Materials Science, Ceramics
Chen Zhou, Xiangyang Xu, Lei Dai, Haiming Gong, Shuntian Lin
Summary: By utilizing electrostatic attraction, core-shell structured composite abrasives were assembled, enhancing polishing efficiency and surface quality, while increasing the polishing interface area.
CERAMICS INTERNATIONAL
(2021)
Article
Polymer Science
Keqian Gong, Xiangyang Xu, Qi Liu, Zexian Han, Wei Huang, Chenyu Huang, Xiangning Huang
Summary: The solution blending approach was used to prepare flexible PC-based composite films with excellent transparent projection performance. Modified alumina showed improved dispersity and compatibility with PC. The composite films exhibited good light transmission and diffuse reflection effects, with excellent transparency achieved when the Al2O3/PC mass ratio was below 0.2.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Ceramics
Yunfei Yao, Xiangyang Xu, Hongye Zhao, Yuanlin Tong, Yina Li
Summary: In this study, a novel method to prepare a multilayer Si-based anode was proposed by coating SiO2, nickel, and triethylene glycol (TEG) successively on Si nanoparticles. The resulting Si@SiOx@void@C material exhibited abundant voids, which could buffer the swelling effect of silicon and provide enhanced ionic conductivity. The as-assembled half-cell with this anode material demonstrated high capacity, long cycle life, and good rate performance.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Keqian Gong, Xiangyang Xu, Yanru Liu, Wei Huang, Qi Liu, Xuefeng Huang, Shanshan Wei
Summary: A composite transparent conductive film with excellent conductive properties was prepared by combining polycarbonate (PC)/polyvinylidene fluoride (PVDF) co-continuous matrix, multi-walled carbon nanotubes (MWCNTs), and poly(3,4ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) layer. The film showed high mechanical strength, good conductivity, and promising application prospects.
Article
Chemistry, Inorganic & Nuclear
Yuanlin Tong, Xiangyang Xu, Yanru Liu, Yunfei Yao, Dongsheng Chen, Chenyu Huang
Summary: A core-shell-structured Mn2SnO4@Void@C anode material was synthesized using a layer-wise assembly and selective etching method, which can significantly buffer the volume expansion and provide convenient channels for ion transport. Mn2SnO4@Void@C exhibits upgraded capacity and long cycling stability, with a specific capacity of 783.1 mA h g(-1) at 100 mA g(-1) after 150 cycles and 553.3 mA h g(-1) at 1000 mA g(-1) after 1000 cycles.
DALTON TRANSACTIONS
(2023)
Article
Electrochemistry
Yunfei Yao, Zhiying He, Xiangyang Xu, Yuanlin Tong, Dongsheng Chen, Chenyu Huang, Hongye Zhao
Summary: Si-xFe/O@C anodes with Fe-doping and carbon encapsulation were assembled through hydrothermal reaction and dehydration/carbonization. The nano-scaled ferric oxide (Fe2O3) particulates in Si improved the cyclic performance by inducing amorphization and optimizing electrical conductivity. The core-shell structured Si-xFe/O@C particulates exhibited long cyclic and upgraded rate performance due to defect-rich structure, carbon layer, and interfacial pseudocapacitance.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Chenyu Huang, Yunfei Yao, Keqian Gong, Xiangyang Xu, Dongsheng Chen, Yuanlin Tong, Pengtao Lei, Hongye Zhao
Summary: In this work, a scalable high energy bead milling method was used to prepare submicron-sized silicon particles enveloped by reduced graphene oxide (rGO) through a co-reduction process. The carbon encapsulation improved the transport efficiency of lithium ions and electrons, promoting the formation of stable solid electrolyte interface (SEI) films and reducing the irreversible consumption of lithium ions. The fabricated powder exhibited upgraded capacity and long cycling stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Xuezhang Liu, Xiangyang Xu
CERAMICS INTERNATIONAL
(2017)
Article
Materials Science, Multidisciplinary
Shuanghui Zeng, Xue Wang, Yunqian Zhang, Jiaojing Shao, Zhao Ding, Jie Zhao
Summary: A free-standing 3D core/shell composite material CNTs@Co9S8 on nickel mesh has been prepared using a simple two-step method. The composite material exhibits excellent conductivity and charge storage capability, making it a promising candidate for supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Marieta Belcheva, Georgi Georgiev, Boyko Tsyntsarski, Urszula Szeluga, Lyudmila Kabaivanova
Summary: This study successfully prepared new antibacterial materials by combining activated carbon with metal nanoparticles, taking advantage of the well-known antibacterial activity of metal nanoparticles. The obtained composites exhibited strong antibacterial effects against E. coli and S. aureus, with the antibacterial activity depending on the contact time, bacterial species, nature of the metal, and metal concentration. The findings provide novel materials with antibacterial properties for further development and potential application in hygiene devices.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. P. Madhurima, Kusum Kumari, P. K. Jain
Summary: In this study, carbon nanomaterials were synthesized using the arc discharge technique, with a focus on optimizing process parameters to improve yield and quality. The materials were characterized using various analytical tools, and their dye adsorption capabilities were evaluated. The results showed that carbon soot had better adsorption performance compared to carbon nanotubes, indicating the potential of these carbon nanomaterials for environmental remediation applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaolong Sun, Bo Cui, Pingping Liang, Qimeng Liu, Nan Gao, Hongdong Li
Summary: This study explores the potential of hafnium (Hf) terminated diamond surfaces in achieving negative electron affinity (NEA). By using swarm-intelligence structural search and first-principles calculations, the researchers found that Hf-terminated diamond surfaces exhibit stable NEA properties and high thermal stability, making them promising candidate materials for electron emission applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
N. Soltani, N. Tavakkoli, E. Eslami, L. S. Mirmohammadi
Summary: In this project, a carbon paste electrode modified with graphene and ZnFe2O4 spinel nanoparticles (Gr/ZnFe2O4/CPE) was used to measure naproxen, and various electrochemical methods were used to investigate its behavior. By optimizing the parameters, good measurement results were obtained.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xiwei Cui, Yue Qin, Xin Han, Huanyi Chen, Xinxin Ruan, Hui Zhang, Chengcheng Jiao, Rongqi Mao, Jinglin Hao, Sizhuang Zhao, Shuai Hou, Xiaoxuan Pian, Yandong Wang, Kazuhito Nishimura, Lifen Deng, Nan Jiang
Summary: This paper investigates the friction and wear behaviors of two types of polycrystalline diamonds against different materials. The results show that increasing surface roughness leads to an increase in coefficient of friction. The coefficient of friction and wear rate of ceramic Si3N4 balls are generally lower than those of steel GCr15 balls, except for one type of polycrystalline diamond. Transfer films of SiO2 and its hydrate are observed at the friction interface, which contribute to smoother friction and wear. Carbon-based transfer films are also identified, mainly catalyzed by residual cobalt in the polycrystalline diamonds, leading to a phase transformation.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Menglei Sun, Pengjun Li, Mao Wang, Yidan Liang, Xudong Yang, Shujie Pang
Summary: In this study, carbonized polymer dots were synthesized by a one-step hydrothermal method, and silver nanoclusters were synthesized by UV lamp irradiation. They were then self-assembled by electrostatic force to prepare a dual-emission fluorescent nanocomposite that responds to temperature changes. The nanocomposite showed two emission peaks and exhibited excellent linearity between 20°C and 80°C.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Mohamed J. Saadh, Durgesh Singh, Diego Mayorga, Anjan Kumar, Maria Albuja, Ahmad Ismael Saber, Mohammed Ahmed Mustafa, Yasser Elmasry, Noubu Sun
Summary: Based on density functional theory, it is found that the C3N monolayer has good adsorption capability for Hg0 and a short recovery time. This study suggests that the C3N monolayer is a promising adsorbent material for efficient control of gaseous mercury.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Rajendra Kumar Nare, Sivalingam Ramesh, Vijay Kakani, Yuvaraj Haldorai, Chandrasekaran Karthikeyan, Basivi Praveen Kumar, Nadavala Siva Kumar, Mohammad Asif, S. Naresh Kumar, D. Prakash Babu, K. Ramakrishna Reddy, Visweswara Rao Pasupuleti
Summary: This study examines the latest advancements in carbon nanotube (CNT) supercapacitors and related composites, aiming to identify strategies for enhancing their performance. The researchers used ultrasonication aided hydrothermal technique to synthesize a composite made of nitrogen doped carbon nanotubes and porous NiCo2O4 nanomaterial. The composite electrode exhibited excellent cycling stability and a rising specific capacitance, making it appealing for high-performance supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
D. Mary Deena, S. Arockia Anushya, A. Dhanusha, T. C. Sabari Girisun, A. Philominal
Summary: A single-beam Z-Scan experiment was conducted to investigate the nonlinear optical absorption and optical limiting properties of Bi2O3, rGO/Bi2O3, Bi2O3/WO3, and rGO/Bi2O3/WO3 nanostructures. The results showed that the synthesized nanostructures exhibited varying levels of nonlinear absorption, with bismuth-based nanostructures showing the lowest optical limiting threshold and a higher two-photon absorption coefficient. The presence of rGO contributed to the extended conjugation for charge transfer, while the strong UV-Visible absorption of Bi2O3 and WO3 led to a unique nonlinear optical response.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Weibing Guo, Yiren Hu, Tao Wang, Xiaoguang Chen
Summary: This study investigated the microstructure and forming mechanism of graphite/copper joints that were brazed using Ti-containing filler. The results showed that increasing the brazing temperature improved the heat transfer and tensile properties of the composites. Additionally, the composites exhibited high heat flux and faster heating rate compared to copper and aluminum.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ming Li, ZhiWen Wang, Yu Teng, Hongyu Zhao, Bowei Li, Yang Liu, Shengxue Wang, Zhenze Yang, Liangchao Chen, Hongan Ma, Xiaopeng Jia
Summary: In the experiment, different Ni-content catalysts were used to synthesize diamond crystals, and the properties of the synthesized diamonds were analyzed. The results revealed that the Ni content in the catalyst affects the crystallinity of diamond crystals and the nitrogen crystallinity. The photoluminescence spectroscopy also showed that the diamond synthesized by using Fe-containing catalyst has specific NV-color center structure.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ling-Feng Mao
Summary: This study proposes an LSTM model to predict the work function of adsorbed metal atoms on graphene, which can quickly screen surface structures with target work function, saving computing and time costs, and improving device performance.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Runzhou Xu, Yinshui Liu, Qian Cheng, Zhenyao Wang, Kai Ma, Peiling Ke, Yipan Deng
Summary: The wear resistance of 17-4PH stainless steel was significantly improved by depositing multi-layered Cr/CrC/DLC coating at wide temperature range. The coating exhibited excellent lubrication and protective properties, and the wear mechanism changed with increasing temperature. The tribochemical reaction during the wear process played a crucial role in the graphitization transformation and friction properties of the coating.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xilong Guo, Jiaxin Song, Shanling Wang, Li Lei, Omololu Odunmbaku, Ayoub Taallah, Yi He, Aiqun Gu, Filippo S. Boi
Summary: The recent observations of superconductive-ordering in carbon-based systems consisting of rhombohedral stacking-faults, trilayer graphene (ABC-stacks) or dislocation-rich interfaces (pyrolytic graphite) have attracted significant attention. In this study, an unusual nucleation of rhombohedral stacking-faults in low-dimensional systems comprising of multiwall carbon nanotube (CNT) buckypapers was reported. The presence of sulfur doping resulted in a broad-band at the Raman shift from 1800 to 2000 cm(-1), indicating contributions arising from disorder-rich regions with rhombohedral stacking-order (ABC-stacks). These observations were further supported by X-ray diffraction and Rietveld refinements.
DIAMOND AND RELATED MATERIALS
(2024)
