Article
Materials Science, Ceramics
Zi-bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Paolo Colombo, Ralf Riedel, Yu Zhou
Summary: In this study, SiBCN ceramics with a special structure were prepared to improve the oxidation resistance. The effect of the structure on oxidation behavior and kinetics was investigated, revealing that the special structure can effectively inhibit heterogeneous oxidation and enhance the oxide layer composition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hongli Liu, Lantian Zhang, Jing Li, Hongyan Li, Guoqing An, Yajing Li, Zhong Chen
Summary: SiBCN ceramic aerogels have excellent properties but low mechanical strength, which hinders their application. Constructing HNTs/SiBCN dual network aerogels can improve their mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Keke Yuan, Daoyang Han, Wanyu Zhao, Weiwei Zhang, Guiqin You, Mingliang Li, Bingbing Fan, Hongxia Lu, Hailong Wang, Hongliang Xu, Gang Shao, Rui Zhang
Summary: In this study, polymer-derived SiCN ceramic aerogels (PDCA-SiCN) were successfully fabricated with a unique three-dimensional network structure by controlling the synthesis temperature and time during the sol-gel process. The sample prepared at 150 degrees C for 20 hours exhibited excellent performance, with a high specific surface area and small pore size.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Guiqin You, Daoyang Han, Huijie Tian, Junfang Liang, Chang-An Wang, Keke Yuan, Mingliang Li, Hailong Wang, Rui Zhang, Gang Shao
Summary: Mullite fiber heat insulation tiles are widely used in aircraft thermal protection systems due to their excellent thermal insulation and chemical stability. Research shows that these tiles also have microwave absorption capabilities, which are strategically significant for aircraft safety and service efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Cristian Gomez-Rodriguez, Linda Viviana Garcia-Quinonez, Josue Amilcar Aguilar-Martinez, Guadalupe Alan Castillo-Rodriguez, Eden Amaral Rodriguez-Castellanos, Jesus Fernando Lopez-Perales, Maria Isabel Mendivil-Palma, Luis Felipe Verdeja, Daniel Fernandez-Gonzalez
Summary: This study investigates the behavior of ceramic composites in silicomanganese slags. The results demonstrate that the ZrO2 nanoparticles in the ceramic composites can control the corrosion of refractories and extend the lifespan of silicomanganese production furnaces.
Article
Nanoscience & Nanotechnology
Xiaoliang Sun, Wenxia Zhu, Huijie Wang, Xiao Yan, Dong Su
Summary: TiCN/SiBCN ceramic aerogel with high specific surface area, low thermal conductivity and excellent thermal stability is a promising candidate for structural and functional applications in high-temperature environments.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Ruiqiang Yang, Yulong Yang, Yongqing Wang, Qibing Chang, Jianer Zhou
Summary: The high cost of ceramic membranes is caused by the high sintering temperatures. Choosing sintering aids can reduce the sintering temperature but results in low corrosion resistance. Using MgO-Al2O3-SiO2-ZrO2 ceramic glass as sintering aids increases the bending strength of alumina membrane, and MgAl2O4, Mg2SiO4, and ZrO2 crystals enhance its mechanical properties and corrosion resistance. The acid corrosion also promotes the permeability of the membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Qiangyi Mao, Liang Qiao, Jingwu Zheng, Yao Ying, Jing Yu, Wangchang Li, Shenglei Che, Wei Cai
Summary: This paper investigates the effects of different coupling media and sintering temperatures on the rheological characteristics, densities, microstructures, and mechanical properties of ceramic components. The results show that the use of zirconate coupling agent with ethanol medium can improve the flowability of feedstocks and help achieve green parts with high powder loading and bending strength.
Review
Materials Science, Multidisciplinary
Cekdar Vakifahmetoglu, Tugce Semerci, Aleksander Gurlo, Gian Domenico Soraru
Summary: Aerogels are unique porous solids with low density and high surface area, making them attractive for scientific research and industrial applications. Polymer derived ceramic aerogels, obtained through pyrolysis of sol-gel/preceramic polymers, have specific thermal, electrical, and adsorbent properties highlighted in this review.
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Qingqing Chen, Daxin Li, Xingqi Liao, Zhihua Yang, Dechang Jia, Yu Zhou, Ralf Riedel
Summary: Lightweight SiBCN ceramic nanofibers with tunable electromagnetic wave absorption were prepared by electrostatic spinning and high-temperature annealing techniques. The defect-free nanofibers, composed of an amorphous matrix, beta-SiC, and free carbon nanocrystals, exhibited good microwave absorption properties after annealing at 1600 degrees C. The optimized microstructure endowed the SiBCN ceramic nanofibers with potential applications as lightweight and ultrastrong radar wave absorbers in military and commercial markets.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yanqiong Zhang, Ju Zhou, Chunxiao Ren, Mamdouh Omran, Ju Tang, Fan Zhang, Guo Chen
Summary: In this study, nTi-3Y-ZrO2 composite ceramics were successfully prepared using the mechanical alloying-microwave sintering method, and their properties were comprehensively characterized. The results showed that the samples exhibited good phase composition, stability, and relative density at a specific sintering temperature, and demonstrated excellent performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Multidisciplinary Sciences
Chih-Hao Chang, Chih-Yang Lin, Chih-Hung Chang, Fwu-Hsing Liu, Yu-Tzu Huang, Yunn-Shiuan Liao
Summary: This study aims to investigate an appropriate ZrO2-SiO2 composite recipe for ceramic 3D printing processes that can strike a balance between the mechanical properties and cell affinity needed in clinical applications. The S5Z5 composite, which consists of 50 wt% ZrO2, 35 wt% SiO2 and 15 wt% SiO2 sol, showed an appropriate compressive strength and bending strength of 82.56 MPa and 55.98 MPa, respectively, at a sintering temperature of 1300 degrees C. The shrinkage rate of the S5Z5 composite was approximately 5% when the sintering temperature was increased from 900 to 1500 degrees C.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Fengjie Li, Yue Jiang, Minghui Chen, Bin Yu, Jinlong Wang, Fuhui Wang
Summary: This study investigates the effects of ZrO2 addition on the bioactivity and mechanical properties of a multicomponent bioactive glass-ceramic. The results show that ZrO2 reduces the crystallisation ability and bioactivity of the glass-ceramic, but the addition of YSZ particles leads to improved mechanical strength and bioactivity. These findings suggest a promising method for producing bioactive glass-ceramics for load-bearing clinical applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Zi-bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Dong Wang, Yunpeng He, Guoxiang Zhou, Paolo Colombo, Ralf Riedel, Yu Zhou
Summary: The chemical reactions and structural changes during the transformation of the precursor into PDCs-SiBCN ceramic were investigated in this study. The crystallization behaviors of PDCs-SiBCN and MA-SiBCN ceramics at different temperatures were compared. It was found that the different amorphous structures in PDCs-SiBCN and MA-SiBCN ceramics resulted in different bonding of silicon atoms, leading to different resistance to crystallization.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Qiang Yan, Siyao Chen, Haofan Shi, Xiaofei Wang, Songhe Meng, Jinping Li
Summary: Sensors that can provide stability and durability in high-temperature and harsh environments are of great significance for real-time temperature monitoring. A SiBCN ceramic temperature sensor based on the semiconductor characteristics of SiBCN ceramics has been developed, which shows excellent sensitivity, accuracy, repeatability, stability and response rate.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Hao Sun, Chenzhe Xu, Xiaoting Yang, Lei Tao, Zheng Wang, Haitao Zhang, Xiang Ji, Juanjuan Ma, Lin Liu, Zhiwei Tong, Zhong Chen
Summary: A novel composite Pd@MgAl-LDH was prepared by using MgAl layered double hydroxide (LDH) as the host material and assembling the precursor (PdCl42-) with exfoliated LDH nanosheets followed by in-situ reduction. The heterogeneous catalyst exhibited evenly distributed Pd NPs with an average particle size of about 3.27 nm supported on LDH nanosheets. The Pd@MgAl-LDH catalyst showed excellent catalytic efficiency for the Heck reaction and could be reused 5 times without significant loss of catalytic activity.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Biomedical
Lei Yu, Yiping Sun, Yusheng Niu, Pengfei Zhang, Jun Hu, Zhong Chen, Gong Zhang, Yuanhong Xu
Summary: An atomic-dispersion Fe-doped oxygen-deficient molybdenum oxide nanozyme (ADFM) with peroxidase-like and enhanced catalase-like activity is developed for prevention of bacterial infection and promotion of wound healing. ADFM exhibits high aqueous dispersity and pH-adaptive ROS regulation, allowing it to fully exert enzyme-like activity in the wound microenvironment. In vivo experiments show that ADFM achieves efficient healing of drug-resistant bacteria-infected wounds with a wound-healing efficiency of approximately 10 mm(2) per day.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Polymer Science
Wei-Feng Sun, Wen Kwang Chern, John Chok You Chan, Zhong Chen
Summary: In this study, reactive molecular dynamics simulations were used to investigate the decomposition process of crosslinked epoxy resin under high electric field and thermal degradation conditions. The effect of active molecular species, such as nitric acid and ozone, generated by electrical partial discharges on the synergetic thermal-electrical degradation of epoxy resin was analyzed. It was found that these active products oxidize hydroxyl groups and carbon-nitrogen bridge bonds in the epoxy molecular chains, leading to accelerated decomposition and increased decomposition products.
Article
Materials Science, Multidisciplinary
Zhiqiang Li, Vincent Gill, Alexis Lambourne, Zhili Dong, Maxim Avdeev, Joo Tien Oh, Zhong Chen
Summary: The effect of heat treatment on the mechanical properties of FeCo-2V alloy was investigated. The study found that the yield strength decreases with increasing heating temperature and holding time, and decreasing cooling rate. Fast cooling improves the mechanical strength and ductility. The microstructural characteristics of the fracture surface differ between quenched and slow-cooled samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yucheng Zhu, Xiaofei Cao, Yuan Tan, Yao Wang, Jun Hu, Baotong Li, Zhong Chen
Summary: In this study, a two-dimensional material (space group R3 over bar m) with a negative Poisson's ratio (NPR) and a maximum NPR of -0.0846 in-plane was discovered using first-principles calculations. The NPR is mainly attributed to its unique zigzag structure and the strong interaction between Mo's 4d orbital and S's 3p orbital. Molecular dynamics simulations indicate the thermodynamic stability of this material. This research reveals the potential of layered MoS2 as a promising 2D NPR material for nanodevice applications.
Article
Chemistry, Physical
Yuexing Chen, Ming Ma, Jun Hu, Zhong Chen, Peng Jiang, Lilac Amirav, Shihe Yang, Zheng Xing
Summary: A coherent CdS(010)|CoS(010) interface was achieved by growing CoS nanoflakes onto CdS nanowires, resulting in efficient photoexcited charge carrier separation and photochemical solar-to-hydrogen conversion. This discovery provides a feasible design strategy for nanojunctions with atomic level coherency, offering great application prospects in catalysis, nanoelectronics, and more.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xinghua Wu, Minghao Xiao, Junting Zhang, Guohuang Tan, Yutong Pan, Yuekun Lai, Zhong Chen
Summary: In this study, a stable superhydrophobic surface with pressure resistance, chemical stability, biocompatibility, and biofouling resistance was demonstrated. The surface maintained superhydrophobicity under a water pressure of 13.72 kPa for 27 days and could withstand water flush and biological attacks for over 35 days. The mechanical stability of the surface was superior to state-of-the-art coatings. The stable long-lasting underwater superhydrophobic surface is of great importance to marine applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Siwei Zhuang, Ning Duan, Linhua Jiang, Feilong Zhang, Jun Hu, Zhong Chen, Fuyuan Xu
Summary: Selective regulation of anodic reaction was achieved by phase-controlled MnO2 (MnO2-PC) on lead-based anodes, effectively addressing issues such as lead-dissolution, anodic slime-generation and high energy-consumption. MnO2-PC with specific crystal planes exposure and rich oxygen vacancy defects enabled higher oxygen evolution reaction selectivity, while synergistically suppressing lead corrosion and manganese oxidation. This study provides an efficient, low-cost, high economic benefits and environmental-friendly strategy for designing target functional materials towards reaction selectivity regulation via phase-control and microstructure reconstruction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
M. Muralles, J. T. Oh, Z. Chen
Summary: Interatomic potentials for Fe-Co and Fe-V binary systems are developed to describe the mechanical behaviors of FeCo and FeCo-2V alloys. The results show that disordering inside grains greatly affects the ductility of FeCo, with antiphase domains (APD) mobility inside the grains delaying the ultimate tensile strength (UTS) and fracture point. Adding 2 at.% V to the FeCo alloy decreases the UTS and ductility at room temperature, but introducing V exclusively to the antiphase boundaries (APBs) increases the alloy's ductility.
Article
Chemistry, Physical
Minzhi Ma, Zeai Huang, Lina Li, Wenda Zhang, Rui Guo, Ruiyang Zhang, Wenjun Fa, Chunqiu Han, Yuehan Cao, Shan Yu, Ying Zhou
Summary: By engineering the coordination environment, a Pr single-atom catalyst was developed to enhance the photogenerated electron density for efficient CO2 photoreduction to CH3OH. The optimized Pr-1-N4O2/CN catalyst exhibited significantly higher activity compared to other reference catalysts, with a 28.9 and 1.9-fold increase, promising innovative single-atom catalysts for CO2 photoreduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yuyu Guo, Shuting Li, Dianyu Xu, Jinxi Han, Zhengqiang Xia, Sanping Chen, Jun Hu, Liping Wei, Zhong Chen, Gang Xie, Shengli Gao, Qi Yang
Summary: This study reports a strategy to regulate the surface charge distribution in carbon-based electrocatalyst to enhance its activity and stability in oxygen reduction reaction (ORR). The sample synthesized, Co9S8@CNS-S, exhibited excellent ORR performance. The improved activity was attributed to the exposed positive charge of surface carbon atoms by N, S elements doping synergistic with Co9S8 nanoparticles (NPs), and the enhanced stability was due to the suppression of H2O2 generation by the combination of carbon layer and Co9S8 NPs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Shuai Dong, Jun Hu, Zhao Qin, Hui Li, Suhang Chen, Zhong Chen, Kangzhen Xu
Summary: A novel WO3-based composite (CuX-WO3/Biochar) was designed by doping and loading. Cu as a dopant has the advantages of producing multiple bands and inhibiting grain growth. Biochar, as a carrier, effectively inhibits the agglomeration of nanomaterials. The CuX-WO3/Biochar was applied to catalytic decomposition and laser ignition of energetic materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mario Muralles, Joo Tien Oh, Zhong Chen
Summary: In this study, interatomic potentials for binary systems were developed using the second nearest-neighbor modified embedded-atom method (2NN MEAM) formalism. These potentials accurately reproduce essential physical properties and can be used to study multicomponent alloys and high entropy alloys, deepening our understanding of their unique properties at the atomic scale.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Qi Wang, Yuheng Deng, Malvern Yap, Yan Yang, Jielin Ma, Wen Kwang Chern, Jin Li, Zhong Chen
Summary: This paper presents a simulation scheme based on the PFCZM for electrical tree modelling and confirms the validity of the model through experiments. The results show that the epoxy resin enhanced with silica and graphene has significant improvements in dielectric breakdown time and thermal conductivity.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Applied
Xiaofei Cao, Siqian Xing, Duo Ma, Yuan Tan, Yucheng Zhu, Jun Hu, Yao Wang, Xi Chen, Zhong Chen
Summary: Rational design of high-performance electrocatalysts for hydrogen evolution reaction (HER) is crucial for future renewable energy systems. This study developed a multi-level screening methodology to search for stable and active dopants for CoP catalysts. Theoretical and experimental results showed that the difference in work function (Delta phi) and the d-band center (d-BC) of the doped system play important roles in regulating the adsorption free energy (Delta G(H*)) of HER. The discovery of these regulatory parameters can drive the development of high-performance ion-doped electrocatalysts for electrocatalytic water splitting.
JOURNAL OF ENERGY CHEMISTRY
(2023)
