D
Dianyu Geng
Researcher at Chinese Academy of Sciences
Publications - 108
Citations - 2856
Dianyu Geng is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Nanocapsules & Magnetization. The author has an hindex of 24, co-authored 106 publications receiving 2457 citations. Previous affiliations of Dianyu Geng include Academia Sinica & University of Science and Technology of China.
Papers
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(Fe, Ni)/C nanocapsules for electromagnetic-wave-absorber in the whole Ku-band
TL;DR: The (Fe, Ni)/C nanocapsules with wide bandwidth absorption can be used as excellent electromagnetic-wave-absorption materials in the whole Ku-band.
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Broadband microwave absorption of CoNi@C nanocapsules enhanced by dual dielectric relaxation and multiple magnetic resonances
TL;DR: In this paper, dual dielectric relaxation of the permittivity and multiple magnetic resonances of the permeability (including one natural resonance and two exchange resonance modes) were observed in CoNi@C nanocapsules in the same 5-17 GHz frequency range.
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Microwave absorption properties of core double-shell FeCo/C/BaTiO3 nanocomposites
TL;DR: High resolution transmission electron microscopy studies reveal the core double-shell type nanocomposite with FeCo nanoparticles as the center, while carbon and BaTiO₃ are the inside and the outside shells, respectively.
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Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules
Han Wang,Huaihong Guo,Yingying Dai,Dianyu Geng,Zheng Han,Da Li,Teng Yang,Song Ma,Wei Liu,Zhidong Zhang +9 more
TL;DR: In this article, Ni/C nanocapsules with similar permeability but different permittivity mainly due to differences in the graphite-shell thickness have been investigated and the optimal working frequency could appear at S-band and C-band with considerable strong EMW absorption.
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Synthesis and characteristics of carbon-coated iron and nickel nanocapsules produced by arc discharge in ethanol vapor
TL;DR: In this article, high-resolution transmission electron microscopy imaging confirms that these particles have a broad size distribution and the core/shell structure, including mutually independent nanocapsules with segregate graphitic shells.