JOURNAL OF MATERIALS CHEMISTRY
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2011
·Vol. 21
·期 25
·9095-9102
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IF 5.101
Xinyong Tao,Yiping Li,Jun Du,Yang Xia,Yingchao Yang,Hui Huang,Yongping Gan,Wenkui Zhang,Xiaodong Li
Finding a general procedure to produce a whole class of materials in a similar way is a desired goal of materials chemistry. In this work, we report a new bamboo-based carbothermal method to prepare nanowires of covalent carbides (SiC and B4C) and interstitial carbides (TiC, TaC, NbC, TixNb1−xC, and TaxNb1−xC). The use of natural nanoporous bamboo as both the renewable carbon source and the template for the formation of catalyst particles greatly simplifies the synthesis process. Based on the structural, morphological and elemental analysis, volatile oxides or halides assisted vapour–liquid–solid growth mechanism was proposed. This bamboo based carbothermal method can be generalized to other carbide systems, providing a general, one-pot, convenient, low-cost, nontoxic, mass production, and innovative strategy for the synthesis of carbide nanostructures.
研究领域:
材料化学
·
纳米材料科学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2020
·Vol. 31
·期 21
·18307-18319
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IF 2.22
Liu Xiongzhang,Luo Hui,Li Yingrui,Chen Fu,Wang Xian,Gong Rongzhou
Titanium boride (TiB 2 ) particles and fibers were synthesized by the carbothermal method with different calcination temperatures and time. Subsequently, the effects of calcination temperatures and time on microstructure and the yield of TiB 2 fibers were investigated. Further, the dielectric and microwave absorption (MA) properties of TiB 2 /paraffin composites within 2–18 GHz were discussed. As a result, the yield of TiB 2 fibers reached a maximum at 1400 °C for 180 min. The content of TiB 2 was directly proportional to permittivity. The sample containing 80 wt % TiB 2 particles and fibers indicated that the minimum reflection loss ( RL min ) attained − 46.5 dB at 11.6 GHz when the thickness was 1.45 mm and the effective absorption bandwidth (EAB) was 4.64 GHz ( RL <–10 dB) with the thickness of 1.25 mm. The related MA mechanisms were also discussed. The excellent stability, simple production procedure, thin absorbing layer, and wide EAB make TiB 2 become an ideal candidate for microwave absorbing materials applied in high temperatures.
研究领域:
材料科学
·
电磁学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Ke Yue,Shihui Zou,Jiaao Wang,Hengyu Feng,Ke Wang,Gongxun Lu,Cong Ma,Xiaohan Cai,Jiale Zheng,Juxin Yue,Jianwei Nai,Yao Wang,Jianmin Luo,Huadong Yuan,Xinyong Tao,Yujing Liu
All-solid-state batteries (ASSBs) represent a transformative advancement in energy storage, distinguished by their superior safety and energy density. However, the sustainable development of ASSBs depends critically on the effective recycling of solid electrolytes and electrode materials from spent batteries, which poses significant challenges. Here, we present a facile and high-value-added carbothermal strategy for recycling spent poly(ethylene oxide) (PEO)-based electrolytes. This approach enables the direct synthesis of one-dimensional lithium fluoride nanowhiskers (1D-LiF) by utilizing the spent PEO-based electrolytes and the surface dead Li components. Through systematic investigation, we identify two mechanisms for the growth of 1D-LiF nanowhiskers and demonstrate the high value of these 1D LiF nanowhiskers in developing advanced composite electrolytes. This simple and efficient upcycling strategy serves as a valuable reference for the recycling of other solid-state electrolytes and supports the sustainable development of ASSBs. The metal-catalysis-free synthesis of LiF nanowhiskers also provides an instructive method for the rational synthesis of 1D metal halide nanomaterials.
研究领域:
材料科学
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能源存储
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可持续发展
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纳米材料合成
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Shaoyin Wang,Jianqiang Bi,Guandong Liang,Jilie Yuan,Yueguang Chen,Linjing Qiao
The TiB 2 fibers were prepared by a chloride-assisted carbothermic method accompanied with the vapor-liquid-solid (VLS) mechanism. The influences of TiO 2 , B 2 O 3 , C 12 H 22 O 11 , and calcination temperature on the yield of TiB 2 fibers were investigated. In addition, the effects of TiB 2 fibers content on the electromagnetic (EM) parameters and microwave absorption (MA) properties of TiB 2 fibers/paraffin composite was studied in detail. The TiB 2 fibers/paraffin composite showed excellent microwave absorption performance, with an optimized reflection loss ( RL ) of −46.63 dB at 14 GHz and a thickness of 1.5 mm. Moreover, it exhibited a broad effective absorption bandwidth (EAB) ( RL < −10 dB) of 3.9 GHz, ranging from 12 to 15.9 GHz. TiB 2 fibers exhibit promising potential as materials for high-temperature applications in the field of MA.
研究领域:
材料科学
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电磁波吸收
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高温应用
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 9
·5810-5824
·
IF 3.5
Shaoyin Wang,Jianqiang Bi,Guandong Liang,Linjing Qiao,Yao Yang,Hongyi Wang,Shuyong Liang,Jiacheng Rong,Chengjiao Che,Jilie Yuan,Yueguang Chen
The aim of achieving integration of lightweight, high strength, high-temperature resistant, and satisfactory electromagnetic (EM) wave absorption was successfully accomplished in the present study by synthesizing TiC–TiB 2 fibers reinforced Si 3 N 4 composites, which were pressureless sintered at 1650°C for 2 h. The preparation of TiC–TiB 2 fibers was conducted through a chloride-assisted carbothermic method. This work focused on investigating the effects of incorporating TiC–TiB 2 fibers on the mechanical properties and EM wave absorption characteristics of the composites. The 30 wt% TiC–TiB 2 /Si 3 N 4 composite displayed the bulk density of 1.89 g/cm 3 , bending strength of 93.11 ± 3.91 MPa, fracture toughness of 1.81 ± 0.10 MPa m 1/2 , minimum reflection loss of −38.87 dB, and effective absorption bandwidth of 1.43 GHz in the K u -band, respectively. The as-synthesized TiC–TiB 2 /Si 3 N 4 composites are promising candidates for EM wave absorbing load-bearing materials due to their outstanding mechanical properties and microwave absorption properties.
研究领域:
材料科学
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电磁工程
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机械工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）