Article
Chemistry, Multidisciplinary
Jun Yang, Zhijie Chen, Longyi Liang, Zhiwen Guan, Junwen Ren
Summary: This study reports on epoxy composites enhanced by ternary fillers of boron nitride nanosheets (BNNSs), multiwalled carbon nanotubes (MWCNTs), and silica (SiO2) nanoparticles. The obtained composites exhibit high thermal conductivity, improved mechanical strength, and low dielectric properties, providing guidance for optimizing the design of high-performance materials.
Article
Materials Science, Composites
Xian Wu, Wei Liu, Fa-guo Shi, Le Yang, Chun Zhang
Summary: In this work, a three-dimensional boron nitride framework was fabricated and infiltrated with liquid epoxy resin, resulting in thermally conductive composites with greatly improved heat dissipation capability. This research provides a facile method for developing thermal conductive composites applied in thermal management for electronics.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Xue Li, Ling Weng, Hebing Wang, Xiaoming Wang
Summary: By incorporating silver nanowires and hexagonal boron nitride as fillers in epoxy resin, the thermal conductivity of the composites can be greatly increased while having minimal impact on the electrical properties.
Article
Materials Science, Composites
Qingguo Chi, Xinle Zhang, Xubin Wang, Changhai Zhang, Yongquan Zhang, Chao Tang, Zhonghua Li, Tiandong Zhang
Summary: In this study, a three-dimensional boron nitride (3D-BN) was successfully constructed using a facile method with the assistance of a healthy and non-toxic food-grade material, curdlan. The resulting 3D-BN/EP composites exhibited significantly improved thermal conductivity compared to pure EP, while maintaining excellent electrical insulation and dielectric properties.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Qingguo Chi, Xinle Zhang, Xubin Wang, Changhai Zhang, Yongquan Zhang, Chao Tang, Zhonghua Li, Tiandong Zhang
Summary: The study successfully constructed three-dimensional boron nitride (3D-BN) using a food-grade material, curdlan, to provide a stable skeleton. This material helps address the heat dissipation issue in microelectronic devices and significantly improves thermal conductivity and electrical insulation properties.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Shubham Sharma, Sameena Mehtab, M. G. H. Zaidi
Summary: A novel method of processing of thermally stable nanohybrids with improved electrical conductivity has been developed in supercritical carbon dioxide. The nanohybrids were formed by dispersing hexagonal boron nitride into carboxylate functional multiwalled carbon nanotube. The resulting working electrodes showed enhanced DC conductivity with the concentration of hexagonal boron nitride.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Li-Chuan Wu, Yi-Wen Huang, Yao-Ming Yeh, Chih-Hung Lin
Summary: This study successfully synthesized liquid crystal epoxy resins and composites containing different forms of boron nitride, and measured their thermal conductivity. The results demonstrate that the alignment of the matrix greatly enhances the thermal conductivity of the composites.
Article
Chemistry, Physical
Jiali Yan, Tianran Chen, Yang Leng, Zhe Wang, Yan Qin, Miaojun Xu
Summary: Epoxy resin composites with superior thermal conductivity were fabricated by dispersing carboxylated multiwalled carbon nanotubes in cellulose nanofiber aerogels and impregnating and curing the EP precursors. The composites exhibited excellent heat absorption and dissipation performance, high electric insulating performance, and improved dimensional stability. They can be used in electronic packaging, devices, and other electronic applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Manufacturing
Qiuru Bao, Ren He, Yuan Liu, Qi Wang
Summary: This study proposes a facile method to exfoliate and organically modify hexagonal boron nitride (h-BN) via phytic acid assisted-ball milling and self-assembly of zeolitic imidazolate frameworks (ZIF-8), achieving the synergistic integration of high thermal conductivity and superior fire safety in epoxy resin (EP). Moreover, h-BN is also used as a curing agent to initiate the crosslinking reaction of EP. The EP composites containing 16 wt% h-BN show significantly reduced peak heat release rate (PHRR) and smoke production rate (SPR), demonstrating superior flame retardancy.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Multidisciplinary
Sijiao Wang, Kaiming Cao, Guanwei Wang, Mengmeng Chen, Hongxi Wang
Summary: In this study, the thermal conductivity of epoxy resin was improved by using modified boron nitride of different scales. The addition of modified boron nitride fillers can lead to the development of composite materials with excellent insulation and thermal conductivity properties.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
Chaoze Liu, Zheng Zhou, Jiawei Ji, Yaxin Gu, Song Yan, Shaobo Yang, Rongjuan Zhang, Zhenya Liu, Yanming Xue, Chengchun Tang
Summary: This paper achieved the controllable preparation of spherical boron nitride (BN) particle from nanospheres to microsphere by changing the synthesis temperature of trimethyl borate (B(OMe)3) and ammonia. The effects of the lower reaction temperature (700-825 degrees C) and gas flow rate on the spherical precursor and the formation of onion-like structure were discussed. The addition of BNMS was investigated for its effect on the thermal conductivity of epoxy resin (EP) composites.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Pingjian Niu, Yufeng Luo, Hean Zhang, Qianling Cui, Lidong Li
Summary: This work presents a simple method for the in situ growth of graphitic carbon nitride on the surface of multiwalled carbon nanotubes. The introduction of carbon nitride improves the interfacial properties of the carbon nanotubes, enhancing both thermal conductivity and electrical insulation. This is highly beneficial for interfacial thermal management applications that require high thermal conductivity and electrical insulation properties.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Materials Science, Composites
Zhicong Miao, Zhixiong Wu, Tao Wang, Yalin Zhao, Zhengrong Zhou, Siyi Zhang, Haojian Su, Rongjin Huang, Laifeng Li
Summary: The combination of noodle-like boron nitride nanoribbons (BNNRs) with epoxy resin (EP) through in situ synthesis improves the thermal conductivity and electrical breakdown strength of nanocomposites, while maintaining acceptable dielectric properties.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Composites
Shuo Wang, Rui Cai, Hongqian Xue, Tianqing Liu, Sensen Han, Zhiqiang Zhou, Zonghao Hu, Qingshi Meng
Summary: The addition of one-dimensional CNTs and two-dimensional BN nanosheets into the epoxy matrix leads to significant improvements in thermal conductivity and mechanical properties, forming a three-dimensional network structure.
POLYMER COMPOSITES
(2021)
Article
Chemistry, Multidisciplinary
Arya Uthaman, Hiran Mayookh Lal, Chenggao Li, Guijun Xian, Sabu Thomas
Summary: The study investigated the thermal, mechanical, and water uptake properties of epoxy nanocomposites with surfactant-modified MWCNTs, showing that the addition of surfactant-modified CNTs into the epoxy significantly improved mechanical and thermal properties. However, excessive concentration of CNTs led to agglomeration and decreased the performance of the nanocomposites.
Article
Thermodynamics
Chunyan Luo, Minggang Fang, Jianxin Sun, Minrui Yang, Weixing Chen
Summary: This study investigates the crystallization kinetics of PLLA with POSS-NH2 and POSS-PEG using traditional differential scanning calorimetry (DSC) and fast scanning chip calorimetry (FSC). The addition of POSS-PEG has a stronger promoting effect on the crystallization rate of PLLA compared to POSS-NH2. FSC can effectively avoid nucleation and crystallization during cooling and heating processes.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Liu Ding, Xilang Jin, Yuchong Gao, Jinlong Wu, Taotao Ai, Hongwei Zhou, Xinyu Chen, Xinyu Zhang, Weixing Chen
Summary: In this study, a new class of carbon dots (E-CCDs) with reversible luminescence and room-temperature phosphorescence (RTP) behavior were successfully synthesized using an eco-friendly, low-cost one-pot solvothermal method. These E-CCDs exhibit dual emission spectra from different emission centers and the addition of cyanic acid enhances their RTP behavior.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Energy & Fuels
Ruilong Wen, Maomao Wu, Bojun Chen, Weixing Chen
Summary: The non-isothermal crystallization behavior of Ag nanoparticles modified expanded graphite/paraffin composited PCMs was studied. It was found that expanded graphite accelerated the crystallization of paraffin wax, while surface interaction between Ag and paraffin wax restricted its crystallization.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Bohui Zheng, Hongwei Zhou, Zhao Wang, Yang Gao, Guoxu Zhao, Hongli Zhang, Xilang Jin, Hanbin Liu, Zhihan Qin, Weixing Chen, Aijie Ma, Weifeng Zhao, Yuanpeng Wu
Summary: This research develops multiscale ionic organohydrogels with outstanding isotropic mechanical robustness by incorporating polyacrylamide (PAM) hydrogel, Zn2+, and a binary solvent into a crosslinked fibrous mat. These organohydrogels exhibit high tensile strength, stretchability, anti-fatigue property, skin-like mechanical behaviors, and ionic conductivity. They show promising potential as materials for flexible electronic devices operating under wide temperature ranges and harsh mechanical conditions.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Yang Gao, Hongwei Zhou, Bohui Zheng, Zhao Wang, Guoxu Zhao, Hongli Zhang, Hanbin Liu, Xilang Jin, Weixing Chen, Aijie Ma, Yuanpeng Wu
Summary: Microgel-enhanced thermal-sensitive hydrogels are utilized as electrolytes to achieve active heat management, controllable energy storage, and mechanical flexibility in supercapacitors. The improved thermal sensitivity of microgel-enhanced hydrogel electrolyte allows efficient heat consumption through volume phase transition, while slowing down ion transport to weaken the energy storage process. Reversibly controlled energy storage is demonstrated by varying temperature below and above the volume phase transition temperature of the hydrogel electrolytes. The hydrogel electrolytes also provide mechanical flexibility, allowing stable charge-discharge under a bending angle from 0 to 180 degrees. Overall, this work provides a new clue for constructing intelligent hydrogel devices through elegant structure design.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xilang Jin, Haiyan Bai, Yiting Ma, Yulong Li, Weixing Chen
Summary: Novel orange-red fluorescent carbon dots (N-CDs) were successfully designed and prepared using Peony seed residue and o-phenylenediamine as precursors. The obtained N-CDs exhibited good aqueous solubility, outstanding fluorescence properties, and high photostability. For fast and efficient Fe3+ sensing, solid-phase fluorogenic test strips and nanofibrous film composited with N-CDs were fabricated. Solid phase materials composited with N-CDs demonstrated outstanding properties in simultaneous Fe3+ adsorption and detection, providing an integrative solution for the detection and decontamination of heavy metal ions.
Article
Nanoscience & Nanotechnology
Haiyan Bai, Xilang Jin, Zhao Cheng, Hongwei Zhou, Haozhe Wang, Jiajia Yu, Jialing Zuo, Weixing Chen
Summary: Through theoretical calculation and experimental verification, it was found that the conjugated structure of multicolor carbon dots (CDs) can regulate the fluorescence wavelength. By adjusting the structure size and introducing amide bonds, it is possible to programmatically control the fluorescence wavelength of CDs, offering wide potential applications in the field of photoelectric devices.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Chemistry, Physical
Yaoxiao Zhao, Weixing Chen, Mengyang Li, Kun Yuan, Meng An
Summary: The search for good nonlinear optical (NLO) materials in laser technology and optical information science is crucial. This study investigates the enhancement of NLO properties in nanocarbon cluster C-60 by using metal Al, revealing the underlying mechanisms through calculations and analysis.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2023)
Article
Chemistry, Physical
Shengbo Zhu, Yongliang Liu, Yilin Su, Xiaoling Niu, Bingyang Lu, Hongwei Zhou, Wenzhi Zhang, Weixing Chen, Ran Chen, Xinbing Chen, Zhongwei An
Summary: Inhibition of electron recombination and dye aggregation is an effective strategy to enhance the power conversion efficiency of co-sensitized solar cells. In this study, the addition of EA and the introduction of oxyalkyl chains in the triphenylamine donor were found to significantly improve the molar absorbance of dye molecules and inhibit charge recombination and dye aggregation, leading to an increase in short-circuit current density. Moreover, the PCE of dye-sensitized solar cells based on the ternary co-sensitization system was greatly improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Na Zhang, Kaili Zhang, Weixing Chen, Yan Wang, Ting Liu, Meng Zong
Summary: A novel high-efficiency absorber was developed through the composition combination and structural design of materials. Hollow flower-like MoO2/CoNi/NPC microspheres were constructed using supramolecular self-assembly in a water-in-oil system and carbonization. The microspheres exhibited outstanding electromagnetic wave absorption performance, with a minimum reflection loss of -54 dB and an effective absorption bandwidth of 4.72 GHz at a filling ratio of 35 wt%. The excellent absorption performance was attributed to the 3D flower-like hollow structure, enhanced impedance matching, and strong polarization loss induced by the double-layer structure and Schottky contact.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Shengbo Zhu, Wei Li, Bingyang Lu, Ran Chen, Yongliang Liu, Weixing Chen, Xiaoling Niu, Wenzhi Zhang, Xinbing Chen, Zhongwei An
Summary: In this study, three organic fluorine-containing dyes were designed and synthesized, and it was found that the introduction of fluorine can significantly broaden the absorption spectra of the dyes, but does not improve the light-harvesting capability of solar cells. One of the dyes, with fluorine substitution at the 3-position, showed a relatively high open-circuit photovoltage compared to the fluorine-free dye, and when co-sensitized with other dyes, it achieved a remarkably high power conversion efficiency and long-term stability. This work suggests that judicious molecular engineering and co-sensitization are promising strategies for highly efficient and stable solar cells.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yaoxiao Zhao, Wangqiang Shen, Weixing Chen, Xing Lu
Summary: This study provides insights into the nature of the metal-metal bond in Lu-2@C-60 isomers through the confinement effect of fullerene cages. Using density functional theory calculations, it was found that Lu-Lu bond in Lu-2@C-2v_C-60 and Lu-2@I-h_C-60 is mediated by a two-center two-electron (2c-2e) σ single bond. The Lu-Lu bond length in Lu-2@C-60 is shorter than that in larger fullerenes due to the compression of the Lu-2 geometry by the smaller C-60 cage, although the bond strength is slightly weaker. The simulated vis-NIR spectra of Lu-2@C-2v_C-60 and Lu-2@I-h_C-60 can provide valuable information for future experimental studies on Lu-based endohedral metallofullerenes.
Article
Chemistry, Multidisciplinary
Peng Miao, Weixing Chen, Dong Zhou, Keji Zhu, Jianing Zhang, Jie Kong
Summary: In this study, a coprecipitation method was used to synthesize hollow FeMn PBA precursors. After pyrolysis under inert conditions, a core-shell FeMnC complex with a carbon layer wrapped metal core was obtained. The microwave absorption performance was enhanced, as demonstrated by the effective absorption width of 6.4 GHz and a minimum reflection loss of 60.3 dB at 2.3 mm.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Qian CAO, Jingjing YANG, Weixing CHEN, Chenhong WANG, Xinming WU, Yaping LEI
Summary: PEO/LiClO4 solid polymer electrolyte prepared by electrostatic spinning technology has good fiber morphology and uniform distribution, excellent ion conductivity, electrochemical stability, and interfacial stability.
CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING
(2023)
Article
Chemistry, Physical
Jie Chen, Pansong Wang, Zhen Wang, Xiaoyong Zhang, Weixing Chen, Yifei Wang
Summary: A tri-layer high-temperature all-organic film was studied to improve the heat resistance and energy-storage performance of ferroelectric polymer-based composites. The film achieved high discharge energy density and charge-discharge efficiency at elevated temperatures, surpassing the limits of existing commercial materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
