The one-pot syntheses of Fe@(C, N) nanocapsules for electromagnetic absorption at gigahertz

Dandan Han; Shucong Xu; Siu Wing Or; Siu Lau Ho; Bao Liu

doi:10.1016/j.matlet.2017.04.015

The one-pot syntheses of Fe@(C, N) nanocapsules for electromagnetic absorption at gigahertz

Dandan Han, Shucong Xu, Siu Wing Or, Siu Lau Ho, Bao Liu

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

13 Citations (Scopus)

Abstract

Fe@(C, N) nanocapsules with Fe nanoparticles as the core and N-doped onion-like carbon as the shell are synthesized by the arc-discharge method. The complex permittivity, dielectric loss and microwave absorption properties of the Fe@(C, N) nanocapsules are improved by the doping of N. Compared with Fe@C nanocapsules, Fe@(C, N) nanocapsules exhibit the thinner thickness for the same effective absorbing band width, and the absorption peaks of the Fe@(C, N) nanocapsules at the same thickness shift to a lower frequency, ascribed to the large amount of defects from the doping of N.

Original language	English
Pages (from-to)	69-72
Number of pages	4
Journal	Materials Letters
Volume	198
DOIs	https://doi.org/10.1016/j.matlet.2017.04.015
Publication status	Published - 1 Jul 2017

Keywords

Carbon materials
Core-shell
Microwave absorption properties
Nanocomposites

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

More information

10.1016/j.matlet.2017.04.015

Cite this

@article{fa7220f9b83346e6b72b640d0a237131,

title = "The one-pot syntheses of Fe@(C, N) nanocapsules for electromagnetic absorption at gigahertz",

abstract = "Fe@(C, N) nanocapsules with Fe nanoparticles as the core and N-doped onion-like carbon as the shell are synthesized by the arc-discharge method. The complex permittivity, dielectric loss and microwave absorption properties of the Fe@(C, N) nanocapsules are improved by the doping of N. Compared with Fe@C nanocapsules, Fe@(C, N) nanocapsules exhibit the thinner thickness for the same effective absorbing band width, and the absorption peaks of the Fe@(C, N) nanocapsules at the same thickness shift to a lower frequency, ascribed to the large amount of defects from the doping of N.",

keywords = "Carbon materials, Core-shell, Microwave absorption properties, Nanocomposites",

author = "Dandan Han and Shucong Xu and Or, {Siu Wing} and Ho, {Siu Lau} and Bao Liu",

year = "2017",

month = jul,

day = "1",

doi = "10.1016/j.matlet.2017.04.015",

language = "English",

volume = "198",

pages = "69--72",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

TY - JOUR

T1 - The one-pot syntheses of Fe@(C, N) nanocapsules for electromagnetic absorption at gigahertz

AU - Han, Dandan

AU - Xu, Shucong

AU - Or, Siu Wing

AU - Ho, Siu Lau

AU - Liu, Bao

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Fe@(C, N) nanocapsules with Fe nanoparticles as the core and N-doped onion-like carbon as the shell are synthesized by the arc-discharge method. The complex permittivity, dielectric loss and microwave absorption properties of the Fe@(C, N) nanocapsules are improved by the doping of N. Compared with Fe@C nanocapsules, Fe@(C, N) nanocapsules exhibit the thinner thickness for the same effective absorbing band width, and the absorption peaks of the Fe@(C, N) nanocapsules at the same thickness shift to a lower frequency, ascribed to the large amount of defects from the doping of N.

AB - Fe@(C, N) nanocapsules with Fe nanoparticles as the core and N-doped onion-like carbon as the shell are synthesized by the arc-discharge method. The complex permittivity, dielectric loss and microwave absorption properties of the Fe@(C, N) nanocapsules are improved by the doping of N. Compared with Fe@C nanocapsules, Fe@(C, N) nanocapsules exhibit the thinner thickness for the same effective absorbing band width, and the absorption peaks of the Fe@(C, N) nanocapsules at the same thickness shift to a lower frequency, ascribed to the large amount of defects from the doping of N.

KW - Carbon materials

KW - Core-shell

KW - Microwave absorption properties

KW - Nanocomposites

UR - http://www.scopus.com/inward/record.url?scp=85017101277&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2017.04.015

DO - 10.1016/j.matlet.2017.04.015

M3 - Journal article

SN - 0167-577X

VL - 198

SP - 69

EP - 72

JO - Materials Letters

JF - Materials Letters

ER -

The one-pot syntheses of Fe@(C, N) nanocapsules for electromagnetic absorption at gigahertz

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this