A sustainable and high value-added strategy under lignite and waste silicon powder to construct SiC nanowires for electromagnetic wave absorption

Wenhao Wang; Xiaolin Lan; Haoquan Hao; Jingxiang Liu; Yong Shuai; Qinghe Jing; Shouqing Yan; Jie Guo; Zhijiang Wang

doi:10.1007/s12613-025-3123-9

A sustainable and high value-added strategy under lignite and waste silicon powder to construct SiC nanowires for electromagnetic wave absorption

Wenhao Wang
, Xiaolin Lan^*
, Haoquan Hao
, Jingxiang Liu
, Yong Shuai
, Qinghe Jing
, Shouqing Yan
, Jie Guo
, Zhijiang Wang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Northeast Forestry University
School of Energy Science and Engineering, Harbin Institute of Technology
Zhalainuoer Coal Industry Co., Ltd
Inner Mongolia Haite Huacai Technology Co., Ltd.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The electromagnetic wave absorption of silicon carbide nanowires is improved by their uniform and diverse cross-structures. This study introduces a sustainable and high value-added method for synthesizing silicon carbide nanowires using lignite and waste silicon powder as raw materials through carbothermal reduction. The staggered structure of nanowires promotes the creation of interfacial polarization, impedance matching, and multiple loss mechanisms, leading to enhanced electromagnetic absorption performance. The silicon carbide nanowires demonstrate outstanding electromagnetic absorption capabilities with the minimum reflection loss of −48.09 dB at 10.08 GHz and an effective absorption bandwidth (the reflection loss less than −10 dB) ranging from 8.54 to 16.68 GHz with a thickness of 2.17 mm. This research presents an innovative approach for utilizing solid waste in an environmentally friendly manner to produce broadband silicon carbide composite absorbers.

Original language	English
Pages (from-to)	347-356
Number of pages	10
Journal	International Journal of Minerals, Metallurgy and Materials
Volume	33
Issue number	1
DOIs	https://doi.org/10.1007/s12613-025-3123-9
State	Published - Jan 2026
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 12 Responsible Consumption and Production

Keywords

SiC nanowires
electromagnetic wave absorption
high value-added
lignite
waste silicon powder

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10.1007/s12613-025-3123-9

Cite this

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title = "A sustainable and high value-added strategy under lignite and waste silicon powder to construct SiC nanowires for electromagnetic wave absorption",

abstract = "The electromagnetic wave absorption of silicon carbide nanowires is improved by their uniform and diverse cross-structures. This study introduces a sustainable and high value-added method for synthesizing silicon carbide nanowires using lignite and waste silicon powder as raw materials through carbothermal reduction. The staggered structure of nanowires promotes the creation of interfacial polarization, impedance matching, and multiple loss mechanisms, leading to enhanced electromagnetic absorption performance. The silicon carbide nanowires demonstrate outstanding electromagnetic absorption capabilities with the minimum reflection loss of −48.09 dB at 10.08 GHz and an effective absorption bandwidth (the reflection loss less than −10 dB) ranging from 8.54 to 16.68 GHz with a thickness of 2.17 mm. This research presents an innovative approach for utilizing solid waste in an environmentally friendly manner to produce broadband silicon carbide composite absorbers.",

keywords = "SiC nanowires, electromagnetic wave absorption, high value-added, lignite, waste silicon powder",

author = "Wenhao Wang and Xiaolin Lan and Haoquan Hao and Jingxiang Liu and Yong Shuai and Qinghe Jing and Shouqing Yan and Jie Guo and Zhijiang Wang",

note = "Publisher Copyright: {\textcopyright} University of Science and Technology Beijing 2026.",

year = "2026",

month = jan,

doi = "10.1007/s12613-025-3123-9",

language = "英语",

volume = "33",

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publisher = "University of Science and Technology Beijing",

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T1 - A sustainable and high value-added strategy under lignite and waste silicon powder to construct SiC nanowires for electromagnetic wave absorption

AU - Wang, Wenhao

AU - Lan, Xiaolin

AU - Hao, Haoquan

AU - Liu, Jingxiang

AU - Shuai, Yong

AU - Jing, Qinghe

AU - Yan, Shouqing

AU - Guo, Jie

AU - Wang, Zhijiang

N1 - Publisher Copyright: © University of Science and Technology Beijing 2026.

PY - 2026/1

Y1 - 2026/1

N2 - The electromagnetic wave absorption of silicon carbide nanowires is improved by their uniform and diverse cross-structures. This study introduces a sustainable and high value-added method for synthesizing silicon carbide nanowires using lignite and waste silicon powder as raw materials through carbothermal reduction. The staggered structure of nanowires promotes the creation of interfacial polarization, impedance matching, and multiple loss mechanisms, leading to enhanced electromagnetic absorption performance. The silicon carbide nanowires demonstrate outstanding electromagnetic absorption capabilities with the minimum reflection loss of −48.09 dB at 10.08 GHz and an effective absorption bandwidth (the reflection loss less than −10 dB) ranging from 8.54 to 16.68 GHz with a thickness of 2.17 mm. This research presents an innovative approach for utilizing solid waste in an environmentally friendly manner to produce broadband silicon carbide composite absorbers.

AB - The electromagnetic wave absorption of silicon carbide nanowires is improved by their uniform and diverse cross-structures. This study introduces a sustainable and high value-added method for synthesizing silicon carbide nanowires using lignite and waste silicon powder as raw materials through carbothermal reduction. The staggered structure of nanowires promotes the creation of interfacial polarization, impedance matching, and multiple loss mechanisms, leading to enhanced electromagnetic absorption performance. The silicon carbide nanowires demonstrate outstanding electromagnetic absorption capabilities with the minimum reflection loss of −48.09 dB at 10.08 GHz and an effective absorption bandwidth (the reflection loss less than −10 dB) ranging from 8.54 to 16.68 GHz with a thickness of 2.17 mm. This research presents an innovative approach for utilizing solid waste in an environmentally friendly manner to produce broadband silicon carbide composite absorbers.

KW - SiC nanowires

KW - electromagnetic wave absorption

KW - high value-added

KW - lignite

KW - waste silicon powder

UR - https://www.scopus.com/pages/publications/105025417887

U2 - 10.1007/s12613-025-3123-9

DO - 10.1007/s12613-025-3123-9

M3 - 文章

AN - SCOPUS:105025417887

SN - 1674-4799

VL - 33

SP - 347

EP - 356

JO - International Journal of Minerals, Metallurgy and Materials

JF - International Journal of Minerals, Metallurgy and Materials

IS - 1

ER -

A sustainable and high value-added strategy under lignite and waste silicon powder to construct SiC nanowires for electromagnetic wave absorption

Abstract

UN SDGs

Keywords

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