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Publication


Featured researches published by Yan Zong.


Journal of Materials Chemistry C | 2015

Hydrophobic graphene nanosheets decorated by monodispersed superparamagnetic Fe3O4 nanocrystals as synergistic electromagnetic wave absorbers

Xinliang Zheng; Juan Feng; Yan Zong; Hui Miao; Xiaoyun Hu; Jintao Bai; Xinghua Li

The comprehension of the interactions between the building blocks in hybrids can give us an insight into the design and application of highly efficient electromagnetic wave absorption materials. Herein, we report a facile in situ thermal decomposition route for the fabrication of superparamagnetic Fe3O4 nanocrystals anchored on hydrophobic graphene nanosheets as synergistic electromagnetic wave absorbers. The microstructures and interactions of the Fe3O4–graphene hybrids are systematically investigated, and the results suggest that the Fe3O4 nanocrystals are uniformly decorated and chemically bonded on the surface of graphene nanosheets without obvious conglomeration or large vacancies. The Fe3O4–graphene hybrids show hydrophobic and superparamagnetic characteristics. Combing the benefits of superparamagnetic Fe3O4 nanocrystals and electrically conducting graphene, the Fe3O4–graphene hybrids show a maximum reflection loss (RL) of −40 dB at 6.8 GHz with a matching thickness of 4.5 mm, and the effective absorption bandwidth (RL < −10 dB) is 4.6–18 GHz with an absorber thickness of only 2–5 mm. However, due to the lack of dielectric loss, only a weak RL of −5 dB is obtained in bare Fe3O4 nanocrystals. The remarkably enhanced electromagnetic wave absorption properties of the Fe3O4–graphene hybrids are owing to effective impedance matching and synergistic interaction. Moreover, compared with other reported graphene-based electromagnetic wave absorption materials, the hydrophobic Fe3O4–graphene hybrids prepared in this work are considered to be more stable and suitable to be applied in some particular environmental conditions, such as rain.


NANO | 2016

Anomalous Ferromagnetism and Electron Microscopy Characterization of High-Quality Neodymium Oxychlorides Nanocrystals

Xinliang Zheng; Juan Feng; Jiarui Zhang; Hongna Xing; Jiming Zheng; Mingzi Wang; Yan Zong; Jintao Bai; Xinghua Li

High-quality neodymium oxychlorides nanocrystals with cubic shape were synthesized by a nonhydrolytic thermolysis route. The morphology and crystal structure of the neodymium oxychlorides nanocubes were characterized by transmission electron microscopy at the nanoscale. Transmission electron microscope (TEM) image shows that the neodymium oxychlorides nanocrystals are nearly monodispersed with cube-like shape. X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns of numerous neodymium oxychlorides nanocubes suggest a pure crystal phase with tetragonal PbFCl matlockite structure. HRTEM image of individual neodymium oxychlorides nanocubes indicate that each nanocubes have a single-crystalline nature with high quality. Unlike the anti-ferromagnetism of the bulk, the neodymium oxychlorides nanocubes show clearly anomalous ferromagnetic characteristic at room temperature. This finding provides a new platform for the exploration of diluted magnetic semiconductors, rare earth-based nanomaterials and so on.


Carbon | 2017

Solvothermal synthesis of nitrogen-doped graphene decorated by superparamagnetic Fe3O4 nanoparticles and their applications as enhanced synergistic microwave absorbers

Zhaoxin Li; Xinghua Li; Yan Zong; Guoguo Tan; Yong Sun; Yingying Lan; Mi He; Zhaoyu Ren; Xinliang Zheng


Journal of Magnetism and Magnetic Materials | 2017

One-pot, template- and surfactant-free solvothermal synthesis of high-crystalline Fe3O4 nanostructures with adjustable morphologies and high magnetization

Yan Zong; Hongna Xin; Jiarui Zhang; Xinghua Li; Juan Feng; Xia Deng; Yong Sun; Xinliang Zheng


Ceramics International | 2016

In-situ synthesis of carbon nanotubes decorated by magnetite nanoclusters and their applications as highly efficient and enhanced microwave absorber

Yingying Lan; Xinghua Li; Yan Zong; Zhaoxin Li; Yong Sun; Guoguo Tan; Juan Feng; Zhaoyu Ren; Xinliang Zheng


Advanced Powder Technology | 2016

Amorphous FexB100−x nanostructures: Facile synthesis, magnetic properties and their applications as enhanced microwave absorbers at S- and C-bands

Xinliang Zheng; Juan Feng; Fangzhao Pu; Yingying Lan; Yan Zong; Xinghua Li; Hongjing Wu


Ceramics International | 2017

Thermal decomposition synthesis of single-crystalline porous ZnO nanoplates self-assembled by tiny nanocrystals and their pore-dependent magnetic properties

Yong Sun; Xinghua Li; Yan Zong; Yingying Lan; Zhaoxin Li; Juan Feng; Hai Ming Fan; Zhengjun Zhang; Xinliang Zheng


Journal of Alloys and Compounds | 2018

Oxygen vacancies driven size-dependent d 0 room temperature ferromagnetism in well-dispersed dopant-free ZnO nanoparticles and density functional theory calculation

Yong Sun; Yan Zong; Juan Feng; Xinghua Li; Fanfan Yan; Yingying Lan; Linxue Zhang; Zhaoyu Ren; Xinliang Zheng


Chemical Engineering Journal | 2018

Optimization of porous FeNi 3 /N-GN composites with superior microwave absorption performance

Juan Feng; Yan Zong; Yong Sun; Yi Zhang; Xi Yang; Guankui Long; Yan Wang; Xinghua Li; Xinliang Zheng


Nanoscale | 2018

Phosphorization boosts the capacitance of mixed metal nanosheet arrays for high performance supercapacitor electrodes

Yingying Lan; Hongyang Zhao; Yan Zong; Xinghua Li; Yong Sun; Juan Feng; Yan Wang; Xinliang Zheng; Yaping Du

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Hongjing Wu

Northwestern Polytechnical University

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Hongyang Zhao

Wuhan Institute of Technology

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Yaping Du

Xi'an Jiaotong University

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