Article
Chemistry, Applied
Zhiyong Huo, Hongjuan Wu, Qingyi Song, Zhaoxi Zhou, Tian Wang, Jixing Xie, Hongqiang Qu
Summary: A novel flame retardant was synthesized by using chitosan-modified zinc hydroxystannate and reduced graphene oxide to enhance the performance of flexible poly(vinyl chloride). The results showed that this flame retardant could effectively reduce the heat release and smoke emission of PVC composites.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Maximilian Kolhep, Margit Zacharias
Summary: In this study, single-crystalline Zn nanowires were successfully synthesized via physical vapor deposition at a low growth temperature of 100 degrees C. It was found that the morphological transition from wool-like to unidirectional nanowires occurred with decreasing Zn concentration in the carrier gas. Additionally, the Zn nanowires exhibited low resistivity and high current density, making them a promising candidate for various applications.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Environmental Sciences
Navneet Kumar, Uijin Jung, Bomseumin Jung, Jinsub Park, Mu. Naushad
Summary: In this study, a zinc hydroxystannate/zinc-tin oxide (ZHS/ZTO) heterostructure was synthesized and showed excellent photocatalytic degradation efficiency for methyl orange and tetracycline. The dominant role of OH radicals was confirmed in the photocatalytic removal process.
ENVIRONMENTAL POLLUTION
(2023)
Article
Thermodynamics
Juraj Kuchar, Katarina Homzova, Peter Tomcik, Eva Culkova, Zuzana Vargova, Katarina Gyoryova
Summary: In this study, the complex compound bis(2,4-dichlorobenzoato-O)bis(thiourea-S)zinc(II) was characterized using various analytical techniques. The thermal decomposition process and structural features were investigated, revealing a distorted tetrahedral coordination environment around the zinc(II) atom and a stabilized structure through hydrogen bonding.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Shantanu Misra, Petr Levinsky, Anne Dauscher, Ghouti Medjahdi, Jiri Hejtmanek, Bernard Malaman, G. Jeffrey Snyder, Bertrand Lenoir, Christophe Candolfi
Summary: Chalcogenide semiconductors and semimetals, including tetragonal InTe, are promising candidates for thermoelectric applications due to their high thermoelectric performance near 800 K. An investigation of InTe single crystals grown over a wide temperature range revealed anisotropic transport coefficients and a semiconductor ground state despite previous suggestions of a semimetallic nature. The extremely low lattice thermal conductivity of InTe, combined with a relatively high power factor, resulted in a maximum dimensionless thermoelectric figure of merit of 0.61 at 780 K along the [110] direction, laying a solid foundation for future doping strategies in high-temperature thermoelectric applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Dimpal Tomar, P. Jeevanandam
Summary: In this study, zinc ferrite nanoparticles with various morphologies were synthesized by thermal decomposition of Zn-Fe glycolates prepared under different synthetic conditions. The nanoparticles were characterized using different analytical techniques and their magnetic properties were investigated.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xinyu Zhang, Yuyang Shi, Zude Shi, Hang Xia, Mingyu Ma, Yiliu Wang, Kang Huang, Ye Wu, Yongji Gong, Huilong Fei, Yongmin He, Gonglan Ye
Summary: High-quality SnS nanoribbons with an atomic thickness and anisotropic characteristics can be synthesized through high-pressure and thermal treatment methods. These nanoribbons have a length of several tens of micrometers and a thickness as low as 5.8 nm. They exhibit crystal orientation along the zigzag direction and in-plane structural anisotropy. A field-effect transistor fabricated with these nanoribbons shows high on/off current ratio and field-effect mobility.
Article
Chemistry, Multidisciplinary
Daniel Thomele, Stefan O. Baumann, Johannes Schneider, Andreas K. Sternig, Sarah Shulda, Ryan M. Richards, Thomas Schwab, Gregor A. Zickler, Gilles R. Bourret, Oliver Diwald
Summary: In this study, the fundamental surface phenomena between MgO and water have been investigated, revealing that water can trigger the reorganization of MgO nanoparticles into extended faceted single-crystalline MgO nanosheets and nanorods with high dispersion and surface area. The role of water in surface formation and reconstruction has been demonstrated in this work, bridging wet chemical and surface science inspired approaches.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Applied
Shuailiang Chen, Jun Li, Yingjie Yuan, Zewei Fu, Dianpu Ma, Lang Zhang, Guifang Wang, Dong Fang
Summary: In this study, a novel flame retardant containing zinc, tin, phosphorus and nitrogen elements was synthesized and introduced as a hollow encapsulated material into epoxy resin. The addition of the flame retardant improved the thermal stability of the epoxy resin and increased the residual carbon mass. Cone calorimeter tests showed that the flame retardant effectively reduced the heat release rate, total heat release, total smoke production, and peak CO production rate. The mechanical performance was also improved due to the well-formed nanosheet-polymer interfaces.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Materials Science, Multidisciplinary
Jinhuan Yao, Ying Liu, Yanwei Li, Jiqiong Jiang, Qing Zhu
Summary: Mn2O3/Mn3O4 composites are synthesized by a facile thermal decomposition strategy using MnCl2 center dot 4H(2)O and sucrose as raw materials. The addition of sucrose transforms the phase structure of manganese oxides from single Mn2O3 to Mn2O3/Mn3O4 composites, reduces particle size, and enhances zinc storage performances. The Mn2O3/Mn3O4 sample (MO-1.0) prepared with a Mn2+/sucrose molar ratio of 1:1 exhibits the best zinc storage performances, delivering high specific capacities at different current densities. This study provides a simple and cost-efficient method for preparing high-performance Mn2O3/Mn3O4 composite cathode materials for ZIBs.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Multidisciplinary
Johannes Boy, Ruediger Mitdank, Zbigniew Galazka, Saskia F. Fischer
Summary: This study provides the first experimental determination of the low-temperature thermal properties of novel highly pure single-crystalline ZnGa2O4. It was found that the thermal conductivity increases with decreasing temperatures due to reduced phonon-phonon Umklapp scattering down to 50 K, while at lower temperatures, the thermal conductivity is limited by boundary scattering.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Construction & Building Technology
Ercan Aydogmus, Mustafa Dag, Zehra Gulten Yalcin, Hasan Arslanoglu
Summary: In this research, a modified castor oil-based epoxy is synthesized and waste expanded polystyrene (EPS) is used as a filler in the improved biocomposite. The properties of the biocomposite are evaluated using response surface methodology and artificial neural networks. Chemical characterization and physical analysis of the biocomposite are performed. The results show that the use of modified castor oil increases the activation energy and reduces the petrochemical content in the biocomposite. The incorporation of waste EPS reduces production cost and density, while increasing thermal insulation and workability. A new model equation is developed to study the thermal decomposition behavior.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Mohammad Al-Harahsheh, Sanad Altarawneh, Mohammad Al-Omari, Mohammednoor Altarawneh, Sam Kingman, Chris Dodds
Summary: The oxidative thermal treatment of electric arc furnace dust mixed with PVC was studied to investigate the impact of oxidizing environment on the extraction of valuable metals. It was found that thermal treatment resulted in significant vaporization of lead and zinc chlorides, and that solution pH significantly affected the extraction of lead and iron.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
Weihao Pan, Qiankun Zhou, Wenjie Yang, Shibin Nie, Liangji Xu, Chunxiang Wei, Hongdian Lu, Wei Yang, Anthony Chun Yin Yuen
Summary: In this study, MXene nanosheets were utilized to wrap zinc hydroxystannate nanoparticles, improving the dispersion and compatibility of the nanoparticles in ABS composites. The results showed that the addition of the MXene-ZHS composite significantly enhanced the elongation properties of ABS and effectively inhibited heat and toxic gas release during combustion, resulting in reduced smoke density.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Fan Guo, Yuze Zhang, Lijuan Li
Summary: In this study, a novel low-cost flame retardant was prepared by mimicking the structure of flowers after rain. The hybrid material showed improved mechanical properties and flame retardancy in epoxy resin composites.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Hua Zhang, Yucun Zhou, Kai Pei, Yuxin Pan, Kang Xu, Yong Ding, Bote Zhao, Kotaro Sasaki, YongMan Choi, Yu Chen, Meilin Liu
Summary: Ammonia protonic ceramic fuel cells (PCFCs) have the potential to be a highly efficient power source with high energy density, but the catalytic activity of existing anodes for ammonia utilization is inadequate. This study presents an Fe-modified Ni/BZCYYb anode with enhanced activity and durability, providing valuable guidance for the development of efficient electro-catalysts for ammonia PCFCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Tongtong Li, Gyutae Nam, Kuanting Liu, Jeng-Han Wang, Bote Zhao, Yong Ding, Luke Soule, Maxim Avdeev, Zheyu Luo, Weilin Zhang, Tao Yuan, Panpan Jing, Min Gyu Kim, Yanyan Song, Meilin Liu
Summary: The development of high-rate anode materials is crucial for high-power lithium batteries. Micrometer-sized H-Nb2O5 with planar defects shows superior performance in fast lithium storage compared to T-Nb2O5, providing new insights into the design of fast Li-ion storage materials.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Yinghua Niu, Yucun Zhou, Weilin Zhang, Yanxiang Zhang, Conor Evans, Zheyu Luo, Nicholas Kane, Yong Ding, Yu Chen, Xuyun Guo, Weiqiang Lv, Meilin Liu
Summary: The electrocatalytic activity and stability of a conventional air electrode for protonic ceramic electrochemical cells are greatly enhanced by a multiphase catalyst coating, leading to improved performance in high steam concentration environments.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tongtong Li, Kuanting Liu, Gyutae Nam, Min Gyu Kim, Yong Ding, Bote Zhao, Zheyu Luo, Zirui Wang, Weilin Zhang, Chenxi Zhao, Jeng-Han Wang, Yanyan Song, Meilin Liu
Summary: The design and construction of a Nb2O5-delta/graphite composite electrode with remarkable rate capability and durability are reported. The enhanced electronic conductivity and lower energy barriers for fast lithium diffusion in Nb12O29 and T-Nb2O5 contribute to the high rate capability. The excellent durability is due to the coherent redox behavior of Nb ions and high reversibility of lithium intercalation/deintercalation.
Article
Multidisciplinary Sciences
Kai Pei, Yucun Zhou, Kang Xu, Hua Zhang, Yong Ding, Bote Zhao, Wei Yuan, Kotaro Sasaki, Yongman Choi, Yu Chen, Meilin Liu
Summary: Researchers enhance the performance of reversible protonic ceramic electrochemical cells by water-promoted surface restructuring, improving the electrocatalytic activity for oxygen reduction and evolution while maintaining stability and durability.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Meng Li, Bin Hua, Wei Wu, Lu-Cun Wang, Yong Ding, Martha M. Welander, Robert A. Walker, Dong Ding
Summary: Small changes in catalyst composition and modification can greatly enhance (electro)catalysis. By carefully tailoring the Ru/La0.25Ce0.75O2-x catalysts through hydrothermal treatment and control over Ru loadings, the ammonia production rate can be increased significantly. The catalysts formed in a protonic ceramic electrolyzer facilitate ammonia synthesis and can be applied to more complex reactions.
Article
Chemistry, Physical
Fan He, Mingyang Hou, Feng Zhu, Dongliang Liu, Hua Zhang, Feifei Yu, Yucun Zhou, Yong Ding, Meilin Liu, Yu Chen
Summary: The findings report on a perovskite-based electrode SF1.5MC that enhances the reaction activity and durability for electrochemical oxidation of H-2 and reduction of CO2. Decent performances are demonstrated at 800 degrees C, with high power density and current density achieved.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Weilin Zhang, Xueyu Hu, Yucun Zhou, Zheyu Luo, Gyutae Nam, Yong Ding, Tongtong Li, Zhijun Liu, Yoojin Ahn, Nicholas Kane, Weining Wang, Jie Hou, Drew Spradling, Meilin Liu
Summary: A novel anode catalyst, BZYNR, has been developed to overcome the performance and durability limitations of solid oxide fuel cells (SOFCs) that operate on hydrocarbon fuels. It enables direct utilization of nearly dry hydrocarbon fuels and demonstrates exceptional power output.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chenxiao Wang, Zhennan Huang, Yong Ding, Minghao Xie, Miaofang Chi, Younan Xia
Summary: This study presents a method for the facet-controlled synthesis of nanocrystals with an ultrathin shell made of a nearly equimolar RuRhPdPt quaternary alloy, showing greatly enhanced activity toward ethanol oxidation. The core-shell nanocubes demonstrate good thermal and electrochemical stability in terms of both geometrical shape and elemental composition, making them a promising candidate for various thermal and electrochemical reactions. The synthetic approach can potentially be extended to fabricate multimetallic catalysts with enhanced activities.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Zheyu Luo, Yucun Zhou, Xueyu Hu, Weining Wang, Yong Ding, Weilin Zhang, Tongtong Li, Nicholas Kane, Zhijun Liu, Meilin Liu
Summary: This study reports a new class of hexavalent Mo/W-doped proton-conducting electrolyte, BaMo(W)(0.03)Ce0.71Yb0.26O3-delta, which exhibits excellent durability and high ionic conductivity. This material demonstrates significantly enhanced chemical stability against high concentrations of steam and carbon dioxide, while maintaining similar ionic conductivity. P-ReSOCs based on this material show high peak power densities in the fuel cell mode and can operate stably during steam electrolysis.
Article
Chemistry, Multidisciplinary
Fangyuan Liu, Xingxu Lu, Chunxiang Zhu, Zichao Bian, Xiaohui Song, Jiyu Sun, Bo Zhang, Junfei Weng, Ashwanth Subramanian, Xiao Tong, Lichun Zhang, Avinash M. Dongare, Chang-Yong Nam, Yong Ding, Guoan Zheng, Haiyan Tan, Pu-Xian Gao
Summary: By using in situ liquid cell transmission electron microscopy, a repeated two-stage anisotropic and pulsating periodic etching dynamic is discovered during the pencil shape evolution of a single crystal ZnO nanorod in aqueous hydrochloric acid. The high-index surfaces {101 m} (m=0, 1, 2, or 3) and {21 1 n} (n=0, 1, 2, or 3) are found to preferentially expose in different ratios, and the exposure of these high-index surfaces enhances the chemical sensing and CO2 hydrogenation activity of the material. These findings provide a deep understanding of the anisotropic wet chemical etching of ionic nanocrystals and offer a design strategy for advanced functional materials.
Article
Nanoscience & Nanotechnology
Nicholas Kane, Zheyu Luo, Yucun Zhou, Yong Ding, Alex Weidenbach, Weilin Zhang, Meilin Liu
Summary: Proton-conducting reversible solid oxide cells are a promising technology for efficient conversion between electricity and chemical fuels, making them well-suited for the deployment of renewable energies and load leveling. The bilayer electrolyte design combines a highly conductive electrolyte with a highly stable protection layer, enhancing chemical stability while maintaining high electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Sanju Gupta, Abbey Knoepfel, Haiyang Zou, Yong Ding
Summary: In this study, methane gas sensors based on zinc oxide nanorod (n-ZnO-NR) arrayed assembly were developed. The sensors were synthesized using aqueous phase deposition and fabricated as pn junctions with chemical sensitization by Pd and Pd-30wt%Ag forming Schottky junctions. The sensors showed high response, low limit of detection, fast response-recovery times, and strong binding constants when evaluated under reducing methane gas with varying concentration, thermal activation, and UV A light activation.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Zheyu Luo, Yucun Zhou, Xueyu Hu, Nichloas Kane, Tongtong Li, Weilin Zhang, Zhijun Liu, Yong Ding, Ying Liu, Meilin Liu
Summary: Proton-conducting electrolytes have high ionic conductivity at intermediate temperatures and are receiving increasing attention. The effect of B-site dopants on the properties of doped barium hafnate-cerate electrolyte materials has not been systematically studied. The results show that electrical conductivity, ionic transference number, chemical stability, and compatibility with NiO are closely correlated with the dopant size.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Nicholas Kane, Yucun Zhou, Weilin Zhang, Yong Ding, Zheyu Luo, Xueyu Hu, Meilin Liu
Summary: This study reports on the application of a surface sol-gel (SSG) coating of catalysts to enhance the electro-catalytic activity and durability of solid oxide fuel cell (SOFC) cathodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)