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Liu H, Zhang X, Liao Y, Yu J, Liu YT, Ding B. Building-Envelope-Inspired, Thermomechanically Robust All-Fiber Ceramic Meta-Aerogel for Temperature-Controlled Dominant Infrared Camouflage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313720. [PMID: 38489784 DOI: 10.1002/adma.202313720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/19/2024] [Indexed: 03/17/2024]
Abstract
The unsatisfactory properties of ceramic aerogels when subjected to thermal shock, such as strength degradation and structural collapse, render them unsuitable for use at large thermal gradients or prolonged exposure to extreme temperatures. Here, a building-envelope-inspired design for fabricating a thermomechanically robust all-fiber ceramic meta-aerogel with interlocked fibrous interfaces and an interwoven cellular structure in the orthogonal directions is presented, which is achieved through a two-stage physical and chemical process. Inspired by the reinforced concrete building envelope, a solid foundation composed of fibrous frames is constructed and enhanced through supramolecular in situ self-assembly to achieve high compressibility, retaining over 90% of maximum stress under a considerable compressive strain of 50% for 10 000 cycles, and showing temperature-invariance when compressed at 60% strain within the range of -100 to 500 °C. As a result of its distinct response to oscillation tolerance coupled with elastic recovery, the all-fiber ceramic meta-aerogel exhibits exceptional suitability for thermal shock resistance and infrared camouflage performance in cold (-196 °C) and hot (1300 °C) fields. This study provides an opportunity for developing ceramic aerogels for effective thermal management under extreme conditions.
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Affiliation(s)
- Hualei Liu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Xinxin Zhang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yalong Liao
- Aerospace Institute of Advanced Material & Processing Technology, China Aerospace Science and Industry Corporation Limited, Beijing, 100074, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yi-Tao Liu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
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2
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Yang S, Cao C, Yan S, Gu Y, Ji J, Zhou Z, Liu C, Yang J, Zhang R, Xue Y, Tang C. Condensation-assembly synthesis of three-dimensionally porous boron nitride for effective oil removal. CHEMOSPHERE 2023; 345:140530. [PMID: 37890791 DOI: 10.1016/j.chemosphere.2023.140530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/14/2023] [Accepted: 10/23/2023] [Indexed: 10/29/2023]
Abstract
A template-free pyrolysis route has been developed using condensation-assembly precursors made of trimethoxyboroxane (TMB) and melamine (M) to cater the requirements of an industrial real-world environment. The precursors contain abundant B-N bonds and exhibit a high level of interconnectivity, resulting in 3D-PBN with enhanced mechanical properties and the ability to be easily customized in terms of shape. Moreover, 3D-PBN demonstrates rapid adsorption kinetics and excellent reusability, efficiently removing up to 270% of its own weight of fuel within 30 s and being readily regenerated through simple calcination. Even after undergoing 50 cycles, the mechanical properties remain at a remarkable 80%, while the adsorption performance exceed 95%. Furthermore, a comprehensive analysis of thermal behavior from precursor to 3D-PBN has been conducted, leading to the proposal of a molecular-scale evolution process comprising four major steps. This understanding enables us to control the phase reaction and regulate the composition of the products, which is crucial for determining the characteristics of the final product.
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Affiliation(s)
- Shaobo Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Chaochao Cao
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, PR China.
| | - Song Yan
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Yaxin Gu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Jiawei Ji
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Zheng Zhou
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Chaoze Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Jingwen Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Rongjuan Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Yanming Xue
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Chengchun Tang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China.
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Li G, Liang J, Lin J, Li H, Liu Y, Xu G, Yu C, Guo Z, Tang C, Huang Y. Boron nitride aerogels incorporated with metal nanoparticles: Multifunctional platforms for iodine capture and detection. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132481. [PMID: 37690206 DOI: 10.1016/j.jhazmat.2023.132481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/21/2023] [Accepted: 09/03/2023] [Indexed: 09/12/2023]
Abstract
Radioactive iodine vapors produced by nuclear fission can pose a significant risk to human health and the environment. Effective monitoring of iodine vapor leakage, capture and storage of radioactive iodine vapor are of great importance for the safety of the nuclear industry. Herein, we report a novel structure-function integrated solid iodine vapor adsorbent based on metal-modified boron nitride (BN) aerogel. Metal-modified BN aerogels incorporated with Cu/Ag nanoparticles (named as BN-Cu and BN-Ag, respectively) are successfully prepared by a metal-induced, ultrasonic-assisted, and in-situ transformation method. The metal-modified BN aerogels show improved mechanical properties in both of the maximum stress and residual deformation. Remarkably, due to the greatly enhanced "host-guest" and "guest-guest" effects by the introduction of metal nanoparticles, the BN-Cu and BN-Ag aerogels exhibit record-breaking iodine vapor adsorption capacities among inorganic adsorbents (1739.8 and 2234.13 wt% respectively), which are even higher than that of most organic adsorbents. Furthermore, an integrated iodine adsorption detection device based on metal-modified aerogels is constructed to realize real-time detection of the electrical properties of aerogels during iodine adsorption. This work provides a foundation for the development of BN aerogels as multifunctional platforms for effective iodine capture and detection. It also introduces new ideas for the use of structural-functional integrated materials in the prevention and control of radioactive iodine pollution.
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Affiliation(s)
- Gen Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Jianli Liang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Jing Lin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China.
| | - Hongyu Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Yan Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Guoyang Xu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Chao Yu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Zhonglu Guo
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Chengchun Tang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China
| | - Yang Huang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China; Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, PR China.
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Wang J, Cheng L, Ye F, Zhao K. Amorphous/Nanocrystalline, Lightweight, Wave-Transparent Boron Nitride Nanobelt Aerogel for Thermal Insulation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47405-47414. [PMID: 37769167 DOI: 10.1021/acsami.3c09996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
At present, the new generation of aircraft is developing in the direction of high speed, long endurance, high mobility, and repeatability. Some studies have shown that the surface temperature of the radome can reach even 1800 °C as the flight speed of the aircraft increases. However, the antenna inside the radome cannot serve at this temperature. Consequently, a thermal insulation system with electromagnetic wave-transparent ability and high-temperature resistance is urgently needed to protect the antenna from working normally. An aerogel material is known as "solid smoke," with the lowest density currently. Because of its high porosity (>90%) and the characteristics of nanopore size, its application in the field of thermal insulation always draws the attention of researchers. In this work, a novel amorphous/nanocrystalline boron nitride (BN) nanobelt aerogel was synthesized successfully. The BN aerogel shows lightweight (18 mg/cm3), good thermal stability (1400 °C under an inert atmosphere and 750 °C under an air atmosphere), wideband wave-transparent performance (dielectric constant of 1.03 and dielectric loss of 0.016 at 4-18 GHz), and thermal insulation property (43 mW/(m·K) at room temperature and 73 mW/(m·K) at 600 °C). The BN aerogel is a suitable candidate as an electromagnetic wave-transparent thermal insulator and fire-resistant material. What is more, the structural stability of the BN aerogel is good (Young's modulus remains basically constant during the fatigue tests), and the energy loss coefficient (∼0.56) is high; it also has the potential to be a mechanical energy dissipative material. The study on the amorphous/nanocrystalline BN nanobelt aerogel provides a new idea for structure design and performance optimization of a high-temperature electromagnetic functional insulation material.
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Affiliation(s)
- Junheng Wang
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fang Ye
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Kai Zhao
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
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5
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Cao CF, Yu B, Huang J, Feng XL, Lv LY, Sun FN, Tang LC, Feng J, Song P, Wang H. Biomimetic, Mechanically Strong Supramolecular Nanosystem Enabling Solvent Resistance, Reliable Fire Protection and Ultralong Fire Warning. ACS NANO 2022; 16:20865-20876. [PMID: 36468754 DOI: 10.1021/acsnano.2c08368] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A graphene oxide (GO)-based smart fire alarm sensor (FAS) has gained rapidly increasing research interest in fire safety fields recently. However, it still remains a huge challenge to obtain desirable GO-based FAS materials with integrated performances of mechanical flexibility/robustness, harsh environment-tolerance, high-temperature resistance, and reliable fire warning and protection. In this work, based on bionic design, the supermolecule melamine diborate (M·2B) was combined with GO nanosheets to form supramolecular cross-linking nanosystems, and the corresponding GO-M·2B (GO/MB) hybrid papers with a nacre-like micro/nano structure were successfully fabricated via a gel-dry method. The optimized GO/MB paper exhibits enhanced mechanical properties, e.g., tensile strength and toughness up to ∼122 MPa and ∼1.72 MJ/m3, respectively, which is ∼3.5 and ∼6.6 times higher than those of the GO paper. Besides, it also shows excellent structural stability even under acid/alkaline solution immersion and water bath ultrasonication conditions. Furthermore, due to the presence of promoting reduction effect and atom doping reactions in GO network, the resulting GO/MB network displays exceptional high-temperature resistance, sensitive fire alarm response (∼0.72 s), and ultralong alarming time (>1200 s), showing promising fire safety and protection application prospects as desirable FAS and fire shielding material with excellent comprehensive performances. Therefore, this work provides inspiration for the design and fabrication of high-performance GO-based smart materials that combine fire shielding and alarm functions.
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Affiliation(s)
- Cheng-Fei Cao
- Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Bin Yu
- Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Ju Huang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiao-Lan Feng
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Ling-Yu Lv
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Feng-Na Sun
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Long-Cheng Tang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Jiabing Feng
- Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia
| | - Pingan Song
- Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia
| | - Hao Wang
- Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia
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6
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Feng L, Wei P, Song Q, Zhang J, Fu Q, Jia X, Yang J, Shao D, Li Y, Wang S, Qiang X, Song H. Superelastic, Highly Conductive, Superhydrophobic, and Powerful Electromagnetic Shielding Hybrid Aerogels Built from Orthogonal Graphene and Boron Nitride Nanoribbons. ACS NANO 2022; 16:17049-17061. [PMID: 36173441 DOI: 10.1021/acsnano.2c07187] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Three-dimensional (3D) elastic aerogels enable diverse applications but are usually restricted by their low thermal and electrical transfer efficiency. Here, we demonstrate a strategy for fabricating the highly thermally and electrically conductive aerogels using hybrid carbon/ceramic structural units made of hexagonal boron nitride nanoribbons (BNNRs) with in situ-grown orthogonally structured graphene (OSG). High-aspect-ratio BNNRs are first interconnected into a 3D elastic and thermally conductive skeleton, in which the horizontal graphene layers of OSG provide additional hyperchannels for electron and phonon conduction, and the vertical graphene sheets of OSG greatly improve surface roughness and charge polarization ability of the entire skeleton. The resulting OSG/BNNR hybrid aerogel exhibits very high thermal and electrical conductivity (up to 7.84 W m-1 K-1 and 340 S m-1, respectively) at a low density of 45.8 mg cm-3, which should prove to be vastly advantageous as compared to the reported carbonic and/or ceramic aerogels. Moreover, the hybrid aerogel possesses integrated properties of wide temperature-invariant superelasticity (from -196 to 600 °C), low-voltage-driven Joule heating (up to 42-134 °C at 1-4 V), strong hydrophobicity (contact angel of up to 156.1°), and powerful broadband electromagnetic interference (EMI) shielding effectiveness (reaching 70.9 dB at 2 mm thickness), all of which can maintain very well under repeated mechanical deformations and long-term immersion in strong acid or alkali solution. Using these extraordinary comprehensive properties, we prove the great potential of OSG/BNNR hybrid aerogel in wearable electronics for regulating body temperature, proofing water and pollution, removing ice, and protecting human health against EMI.
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Affiliation(s)
- Lei Feng
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Peng Wei
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Qiang Song
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Jiaxu Zhang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Qiangang Fu
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Xiaohua Jia
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Jin Yang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Dan Shao
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yong Li
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Sizhe Wang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Xinfa Qiang
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing Institute of Technology, Nanjing 211167, PR China
| | - Haojie Song
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, PR China
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Pd nanoparticles anchored on porous boron nitride nanofibers as highly active and stable electrocatalysts for formic acid oxidation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128947] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Li L, Fang B, Ren D, Fu L, Zhou Y, Yang C, Zhang F, Feng X, Wang L, He X, Qi P, Liu Y, Jia C, Zhao S, Xu F, Wei X, Wu H. Thermal-Switchable, Trifunctional Ceramic-Hydrogel Nanocomposites Enable Full-Lifecycle Security in Practical Battery Systems. ACS NANO 2022; 16:10729-10741. [PMID: 35709373 DOI: 10.1021/acsnano.2c02557] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Thermal runaway (TR) failures of large-format lithium-ion battery systems related to fires and explosions have become a growing concern. Here, we design a smart ceramic-hydrogel nanocomposite that provides integrated thermal management, cooling, and fire insulation functionalities and enables full-lifecycle security. The glass-ceramic nanobelt sponges exhibit high mechanical flexibility with 80% reversible compressibility and high fatigue resistance, which can firmly couple with the polymer-nanoparticle hydrogels and form thermal-switchable nanocomposites. In the operating mode, the high enthalpy of the nanocomposites enables efficient thermal management, thereby preventing local temperature spikes and overheating under extremely fast charging conditions. In the case of mechanical or thermal abuse, the stored water can be immediately released, leaving behind a highly flexible ceramic matrix with low thermal conductivity (42 mW m-1 K-1 at 200 °C) and high-temperature resistance (up to 1300 °C), thus effectively cooling the TR battery and alleviating the devastating TR propagation. The versatility, self-adaptivity, environmental friendliness, and manufacturing scalability make this material highly attractive for practical safety assurance applications.
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Affiliation(s)
- Lei Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Ben Fang
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Dongsheng Ren
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Le Fu
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Yiqian Zhou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Chong Yang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Fangshu Zhang
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
| | - Xuning Feng
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
| | - Li Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Xiangming He
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Peipei Qi
- Research Center of Do-fluoride New Energy Technology Co., Ltd., Jiaozuo 454003, China
| | - Ying Liu
- School of Mechanical-Electronic and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Chao Jia
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Shanyu Zhao
- Laboratory for Building Energy Materials and Components, Swiss Federal Laboratories for Materials Science and Technology, Empa, Dübendorf, 8600, Switzerland
| | - Fei Xu
- Research Center of Do-fluoride New Energy Technology Co., Ltd., Jiaozuo 454003, China
| | - Xiaoding Wei
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Hui Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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9
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Li D, Li M, Zhu S, Gao Y, Mu M, Zhang N, Wang Y, Lu M. Porous Hexagonal Boron Nitride as Solid-Phase Microextraction Coating Material for Extraction and Preconcentration of Polycyclic Aromatic Hydrocarbons from Soil Sample. NANOMATERIALS 2022; 12:nano12111860. [PMID: 35683716 PMCID: PMC9182517 DOI: 10.3390/nano12111860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 12/10/2022]
Abstract
Sample pretreatment plays important role in the analysis and detection of trace pollutants in complex matrices, such as environmental and biological samples. The adsorption materials of sample pretreatment receive considerable attention, which has a significant effect on the sensitivity and selectivity of the analytical method. In this work, the porous hexagonal boron nitride (h-BN) was utilized as a coating material of solid-phase microextraction (SPME) to extract and preconcentrate polycyclic aromatic hydrocarbons (PAHs) prior to separation and detection with GC-FID. Attributed to the multiple interactions including hydrophobicity, hydrogen bonding and strong π–π interaction, the h-BN coating showed excellent extraction performance for PAHs. Under the optimal conditions, the method showed the linear relationship in the range of 0.1–50 ng mL−1 for acenaphthene, 0.05–50 ng mL−1 for pyrene, and 0.02–50 ng mL−1 for fluorene, phenanthrene and anthracene with a correlation coefficient (R2) not lower than 0.9910. The enrichment factors were achieved between 1526 and 4398 for PAHs with h-BN as SPME fiber coating. The detection limits were obtained in the range of 0.004–0.033 ng mL−1, which corresponds to 0.08–0.66 ng g−1 for soil. The method was successfully applied to analysis of real soil samples. The recoveries were determined between 78.0 and 120.0% for two soil samples. The results showed that h-BN material provided a promising alternative in sample pretreatment and analysis.
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Affiliation(s)
| | | | | | | | | | - Ning Zhang
- Correspondence: (N.Z.); (M.L.); Tel./Fax: +86-371-238-815-89 (M.L.)
| | | | - Minghua Lu
- Correspondence: (N.Z.); (M.L.); Tel./Fax: +86-371-238-815-89 (M.L.)
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10
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Wang B, Bai W, Wang G, Guo K, Duan H, Xue Y, Tang C. CoO modified porous boron nitride fibers for the adsorption and removal of chlortetracycline from aqueous solution. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127749] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Han L, Dong L, Li F, Duan H, Zhang H, Li G, Jia Q, Zhang S. Preparation of Si3N4-BCxN-TiN composite ceramic aerogels via foam-gelcasting. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.01.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Habibi N, Pourjavadi A. Magnetic, thermally stable, and superhydrophobic polyurethane sponge: A high efficient adsorbent for separation of the marine oil spill pollution. CHEMOSPHERE 2022; 287:132254. [PMID: 34583296 DOI: 10.1016/j.chemosphere.2021.132254] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/30/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Herein, we demonstrated a facile method for the fabrication of magnetic and superhydrophobic polyurethane sponge with water contact angle of 159° as an adsorbent for cleanup the marine oil spill pollution. For this aim, a polyurethane sponge was coated with carbon black (CB), hexagonal boron nitride (h-BN)@Fe3O4, and acrylic resin and then characterized by different techniques. Owing to the chemical and thermal stability of h-BN and CB, the modified sponge was stable under corrosive conditions (pH = 1-14 and salt solutions) and at different temperatures (-12 °C-105 °C). In addition to common oils and organic solvents, we also used the real spilled oils containing monoaromatics and polyaromatics in the water surfaces of the Persian Gulf for investigation of adsorption efficiency of sponge in a real condition. The oil adsorption capacity of this sponge was in the range of 64-176 g g-1. Also, this adsorbent can separate high amount of oil or organic solvents up to 66,400 times of its own weight from the oil-water mixture in a continuous separation. The results confirm that modified sponge can be used more than 20 times for oil spill cleanup without considerable reduction of its adsorption capacity. Consequently, the modified sponge is a promising candidate material for use in a real oil-water separation process.
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Affiliation(s)
- Navid Habibi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, 11365-9516, Iran
| | - Ali Pourjavadi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, 11365-9516, Iran.
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13
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Zhu M, Li G, Gong W, Yan L, Zhang X. Calcium-Doped Boron Nitride Aerogel Enables Infrared Stealth at High Temperature Up to 1300 °C. NANO-MICRO LETTERS 2021; 14:18. [PMID: 34870761 PMCID: PMC8649065 DOI: 10.1007/s40820-021-00754-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/22/2021] [Indexed: 05/09/2023]
Abstract
Boron nitride (BN) aerogels, composed of nanoscale BN building units together with plenty of air in between these nanoscale building units, are ultralight ceramic materials with excellent thermal/electrical insulation, great chemical stability and high-temperature oxidation resistance, which offer considerable advantages for various applications under extreme conditions. However, previous BN aerogels cannot resist high temperature above 900 °C in air atmosphere, and high-temperature oxidation resistance enhancement for BN aerogels is still a great challenge. Herein, a calcium-doped BN (Ca-BN) aerogel with enhanced high-temperature stability (up to ~ 1300 °C in air) was synthesized by introducing Ca atoms into crystal structure of BN building blocks via high-temperature reaction between calcium phosphate and melamine diborate architecture. Such Ca-BN aerogels could resist the burning of butane flame (~ 1300 °C) and keep their megashape and microstructure very well. Furthermore, Ca-BN aerogel serves as thermal insulation layer, together with Al foil serving as both low-infrared-emission layer and high-infrared-reflection layer, forming a combination structure that can effectively hide high-temperature target (heated by butane flame). Such successful chemical doping of metal element into crystal structure of BN may be helpful in the future design and fabrication of advanced BN aerogel materials, and further extending their possible applications to extremely high-temperature environments.
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Affiliation(s)
- Mengya Zhu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, People's Republic of China
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, People's Republic of China
| | - Guangyong Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, People's Republic of China
| | - Wenbin Gong
- School of Physics and Energy, Xuzhou University of Technology, Xuzhou, 221018, People's Republic of China
| | - Lifeng Yan
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Xuetong Zhang
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, People's Republic of China.
- Division of Surgery & Interventional Science, University College London, London, NW3 2PF, UK.
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14
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Han L, Khalil AM, Wang J, Chen Y, Li F, Chang H, Zhang H, Liu X, Li G, Jia Q, Zhang S. Graphene-boron nitride composite aerogel: A high efficiency adsorbent for ciprofloxacin removal from water. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119605] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Thermal insulation TiN aerogels prepared by a combined freeze-casting and carbothermal reduction-nitridation technique. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2021.01.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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16
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Hoang AT, Nižetić S, Duong XQ, Rowinski L, Nguyen XP. Advanced super-hydrophobic polymer-based porous absorbents for the treatment of oil-polluted water. CHEMOSPHERE 2021; 277:130274. [PMID: 33770690 DOI: 10.1016/j.chemosphere.2021.130274] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
The threat of environmental pollution caused by spilled oil is rapidly increasing along with the expansion of oil exploration, the development of maritime activities and industrial growth. Oil spill incidents usually affect seriously the ecosystem and human life. Therefore, the treatment and recovery of the oil spill have been considered as an ultra-important issue to protect the environment and to minimize its negative impacts on socio-economic activities. Among methods of oil spill recovery, porous materials have emerged as potential absorbents possessing the capacity of absorbing spilled oil at a fast rate, high adsorption capacity, good selectivity, and high reusability. In this review paper, two types of polymer-based porous absorbents modified surface and structure were introduced for the treatment strategy of the oil-polluted water. In addition, the absorption mechanism and factors affecting the adsorption capacity for oils and organic solvents were thoroughly analyzed. More importantly, characteristics of polymer-based porous materials were discussed in detail based on microstructure analysis, absorption efficiency, and reusability. In general, this paper has provided an overview and a comprehensive assessment of the use of advanced polymer-based porous materials for the treatment of oil-polluted water, although the impacts of environmental factors such as wind, wave, and temperature should be further investigated in the future.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, Ho Chi Minh city University of Technology (HUTECH), Ho Chi Minh city, Viet Nam.
| | | | - Xuan Quang Duong
- Department of Mechanical Engineering, Vietnam Maritime University, Haiphong, Viet Nam
| | - Lech Rowinski
- Institute of Naval Architecture and Ocean Engineering, Gdansk University of Technology, Poland
| | - Xuan Phuong Nguyen
- Institute of Maritime, Ho Chi Minh city University of Transport, Ho Chi Minh city, Viet Nam.
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17
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Fu H, Huang K, Yang G, Cao Y, Wang H, Peng F, Cai X, Gao H, Liao Y, Yu H. Understanding the Catalytic Sites in Porous Hexagonal Boron Nitride for the Epoxidation of Styrene. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02171] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hongquan Fu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Kuntao Huang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Guangxing Yang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Yonghai Cao
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Hongjuan Wang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Feng Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, Guangdong 510006, China
| | - Xingke Cai
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Hejun Gao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Yunwen Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Hao Yu
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
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18
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Pan J, Wang J. Reduction of structural hierarchy translates into variable influence on the performance of boron nitride aerogel. iScience 2021; 24:102251. [PMID: 33763637 PMCID: PMC7973872 DOI: 10.1016/j.isci.2021.102251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/10/2021] [Accepted: 02/25/2021] [Indexed: 11/19/2022] Open
Abstract
The rise of ceramic aerogel offers traditional ceramics a new window. Alongside the emerging prospects, what is open to explore includes the elegant design of a ceramic aerogel with tailorable inner organizations, what would occur when complex hierarchy exists in such an already intricate system, and how the properties get influenced as the complexity fades. Borrowing the wisdom from supramolecular world, we exquisitely transform BN aerogel from a complex hierarchy to a flatten microstructure based on solvent-induced morphology switch of its supramolecular precursor gel. Such reduction in structural hierarchy has insignificant effect on the thermal conductivity (∼0.027 W/(m·K)) but shifts the wettability from hydrophobicity to hydrophilicity and occasions nearly 3-fold difference in ion adsorption rate, as exemplified by lead ions. This work may promote the understanding of special hierarchy existing in delicate systems and inspire other attempts to harness the functionality of aerogels by manipulating structural hierarchy.
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Affiliation(s)
- Jingjing Pan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jingyang Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
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19
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Li M, Fu K, Wang Z, Cao C, Yang J, Zhai Q, Zhou Z, Ji J, Xue Y, Tang C. Enhanced Adsorption of Polysulfides on Carbon Nanotubes/Boron Nitride Fibers for High-Performance Lithium-Sulfur Batteries. Chemistry 2020; 26:17567-17573. [PMID: 32965742 DOI: 10.1002/chem.202003807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 11/07/2022]
Abstract
Lithium-sulfur (Li-S) batteries are one of the most promising high-energy-density storage systems. However, serious capacity attenuation and poor cycling stability induced by the shuttle effect of polysulfide intermediates can impede the practical application of Li-S batteries. Herein we report a novel sulfur cathode by intertwining multi-walled carbon nanotubes (CNTs) and porous boron nitride fibers (BNFs) for the subsequent loading of sulfur. This structural design enables trapping of active sulfur and serves to localize the soluble polysulfide within the cathode region, leading to low active material loss. Compared with CNTs/S, CNTs/BNFs/S cathodes deliver a high initial capacity of 1222 mAh g-1 at 0.1 C. Upon increasing the current density to 4 C, the cell retained a capacity of 482 mAh g-1 after 500 cycles with a capacity decay of only 0.044 % per cycle. The design of CNTs/BNFs/S gives new insight on how to optimize cathodes for Li-S batteries.
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Affiliation(s)
- Mengyuan Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Kun Fu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Zhixuan Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China
| | - Chaochao Cao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Jingwen Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Qinghong Zhai
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Zheng Zhou
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Jiawei Ji
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Yanming Xue
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
| | - Chengchun Tang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR China.,Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin, 300130, PR China
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20
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Pan J, Wang J. Boron nitride aerogels consisting of varied superstructures. NANOSCALE ADVANCES 2020; 2:149-155. [PMID: 36133994 PMCID: PMC9417323 DOI: 10.1039/c9na00702d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/16/2019] [Indexed: 05/24/2023]
Abstract
As a porous material with a nanoscale skeleton, aerogel serves as a bridge between the nano- and macro-world. The integration of nanostructures into aerogels not only allows the combination of multidimensional features but also implies the possibility of unexpected properties. With great potential in many fields, boron nitride (BN) nanostructures have garnered growing attention and their existence in the aerogel state holds even more promise. However, the existing fabrication routes in the aerogel field, despite their validity and effectiveness, provide no panacea and are challenged by those incompatible with the current preparation toolbox, among which BN stands out. Herein, a multilevel assembly scheme is demonstrated for the elegant fabrication of BN aerogels consisting of varied superstructures, i.e., nanoribbons composed of tiny nanocrystals and nest-like structures tangled by nanofibers, the realization of which via the traditional molecular route or the classic assembly route is rather difficult. Interestingly, the resultant aerogels were found to exhibit great contrast in their hydrophilicity, which could be attributed to the microstructure difference. This study may raise the prospects of BN in energy, environment, bio-applications, etc. It may also give inspirations for the incorporation of other complex structures into aerogels.
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Affiliation(s)
- Jingjing Pan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang 110016 China
- School of Materials Science and Engineering, University of Science and Technology of China Hefei 230026 China
| | - Jingyang Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang 110016 China
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21
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Wu C, Wang B, Wu N, Han C, Zhang X, Wang Y. In situ molten phase-assisted self-healing for maintaining fiber morphology during conversion from melamine diborate to boron nitride. RSC Adv 2020; 10:11105-11110. [PMID: 35495298 PMCID: PMC9050429 DOI: 10.1039/c9ra10292b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 02/21/2020] [Indexed: 12/04/2022] Open
Abstract
C3N6H6·2H3BO3 (M·2B) is a highly promising precursor of boron nitride (BN) fibers due to its eco-friendly and low-cost fabrication. However, it is still unclear why the fibers can maintain their morphology in spite of drastic weight loss (nearly 80 wt%) during M·2B-to-BN pyrolysis. Herein, an interesting cracking and self-healing behavior of the heated M·2B fibers was observed at initial pyrolysis. In situ formed molten boron oxide (B2O3) was figured out to be the healing agent for the cracks and subsequently merged into the continuous matrix enclosing melamine/melem molecules, which subsequently acted as a nitrogen source. The B2O3 matrix helped to keep the fiber morphology undamaged under the second weight-loss stage in the pyrolysis process. This strategy of taking advantage of the in situ formed molten phase for healing cracks offers detailed guidance to prepare defect-free M·2B-derived BN fibers and would be significant in defect repair for other ceramics. Morphology evolution and the corresponding structure transformation from C3N6H6·2H3BO3 supramolecule to BN fiber.![]()
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Affiliation(s)
- Chunzhi Wu
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
| | - Bing Wang
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
| | - Nan Wu
- Department of Materials Science and Engineering
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
| | - Cheng Han
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
| | - Xiaoshan Zhang
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
| | - Yingde Wang
- Science and Technology on Advanced Ceramic Fibers and Composites Laboratory
- College of Aerospace Science and Engineering
- National University of Defense Technology
- Changsha
- P. R. China
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22
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Preparation of deep eutectic solvent-based hexagonal boron nitride-molecularly imprinted polymer nanoparticles for solid phase extraction of flavonoids. Mikrochim Acta 2019; 186:753. [DOI: 10.1007/s00604-019-3885-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/30/2019] [Indexed: 01/21/2023]
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23
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Wang J, Liu D, Li Q, Chen C, Chen Z, Song P, Hao J, Li Y, Fakhrhoseini S, Naebe M, Wang X, Lei W. Lightweight, Superelastic Yet Thermoconductive Boron Nitride Nanocomposite Aerogel for Thermal Energy Regulation. ACS NANO 2019; 13:7860-7870. [PMID: 31194502 DOI: 10.1021/acsnano.9b02182] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Conventional three-dimensional (3D) thermal conductors or heat sinks are normally bulky solids with high density, which is cumbersome and not portable to satisfy current demands for soft and flexible electronic devices. To address this issue, here, a lightweight, superelastic yet thermally conductive boron nitride (BN) nanocomposite aerogel is designed by a facile freeze-drying method. The attained aerogel constituting of tailored interconnected binary inorganic-organic network structure exhibits low bulk density (6.5 mg cm-3) and outstanding mechanical performances for compression, clotting, and stretching. Meanwhile, the aerogel has promising thermal stability and high thermal conductivity over wide temperature ranges (30-300 °C), validating the application even in extremely hot environments. Moreover, the aerogel can serve as a lightweight and elastic heat conductor for the enhancement of thermal energy harvest. Interestingly, during alternate strain loading/unloading under heating, the superelasticity and the anisotropy of thermal conductive transduction make the aerogel enable the elastic thermal energy capture and dynamic regulation. Therefore, our findings provide a potential use for the thermally conductive aerogel in future green energy applications.
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Affiliation(s)
- Jiemin Wang
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Dan Liu
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Quanxiang Li
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Cheng Chen
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Zhiqiang Chen
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Pingan Song
- Centre for Future Materials , University of Southern Queensland , Toowoomba , Queensland 4350 , Australia
| | - Jian Hao
- School of Physics and Electronic Engineering , Jiangsu Normal University , Xuzhou 221116 , China
| | - Yinwei Li
- School of Physics and Electronic Engineering , Jiangsu Normal University , Xuzhou 221116 , China
| | - Sobhan Fakhrhoseini
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Minoo Naebe
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Xungai Wang
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
| | - Weiwei Lei
- Institute for Frontier Materials , Deakin University , Waurn Ponds Campus, Locked Bag 20000 , Geelong , Victoria 3220 , Australia
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