Results 21 to 30 of about 12,120 (155)

Sustainable Upcycling of Office Waste Paper Into Cobalt/Carbon Aerogels for Highly Efficient Microwave Absorption

Electron, EarlyView.
Co/C aerogels (Co/CAs) are successfully fabricated with office waste paper (OWP) as the raw material by loading ZIF‐67 crystals. The optimal sample exhibited an effective absorption bandwidth of 5.6 GHz, which outperforms many biomass‐derived microwave absorbing materials.
Yan Wang, Lixue Gai, Xingyi He, Xijiang Han, Yongzheng Chen, Yunchen Du   +5 more
wiley   +1 more source

A strategy for modulation of permittivity in manganese doping to induce lattice distortion

InfoMat, EarlyView.
Manganese atoms are doped into the NiCo2O4 spinel structure by atomic substitution, which increases structural stability through the formation of manganese–oxygen bonds. The resulting lattice distortion leads to a significant increase in dielectric permittivity. Achieving an electromagnetic wave reflection loss of −63.40 dB thus provides useful insight
Fei‐Fei Xu, Bo Cai, Xiao‐Bo Sun, Yu Zhang, Shuang Bai, Chen‐Ming Liang, Martin C. Koo, Yun‐Xia Bai, Pei‐Yan Zhao, Guang‐Sheng Wang   +9 more
wiley   +1 more source

Radar Cross Section (RCS) of perfect electromagnetic conductor (PEMC) cylinder by a Laguerre–Gaussian beam

Kuwait Journal of Science, 2022
Radar Cross Section (RCS) of perfect electromagnetic conductor (PEMC) cylinder using an incident Laguerre–Gaussian (LG) beam has been investigated. LG beam potential function is used to expand the incident and scattered electromagnetic (EM) field components.
M.Arfan, Abdul Ghaffar, M.Y. Naz, M.A. Hanif   +3 more
openaire   +2 more sources

Multi‐dimensional, multi‐interfacial, and multi‐path synergy enables broadband absorption, corrosion resistance, Joule heating, and thermal performances in hierarchical carbon/Ni nanoparticles‐carbon nanocoils foams

InfoMat, EarlyView.
Owing to the severe electromagnetic wave (EMW) pollution and the increasingly intricate operating environments, an excellent EMW absorber with multiple functions has become imperative. Herein, 3D/0D‐1D hierarchical carbon/Ni nanoparticles‐carbon noncoils (CNCs) composite foams with multi‐dimensional, multi‐interfacial and multi‐path structures can be ...
Beibei Zhan, Yiru Zhang, Zhiyun Tan, Aming Xie, Xiu Gong, Qiong Peng, Jing‐Liang Yang, Yunpeng Qu, Xiaosi Qi   +8 more
wiley   +1 more source

Integration of photo‐driven rapid self‐healing and environmental robustness for durable electromagnetic wave absorbing elastomers

InfoMat, EarlyView.
A physical cross‐linking strategy is adopted to design MXene/self‐healing polyurethane elastomer for their improvement of flexibility, environmental robustness, rapid self‐healing ability, and comprehensive electromagnetic wave absorption properties.
Junxiong Xiao, Beibei Zhan, Zhiyun Tan, Junfei Ding, Yunpeng Qu, Xiu Gong, Qiong Peng, Wei Zhong, Yanli Chen, Xiaosi Qi   +9 more
wiley   +1 more source

Mesoporous Hollow Carbon Spheres/Nanofibers Anchored With Conductive Bimetallic for Efficient Microwave Absorption

Rare Metals, EarlyView.
ABSTRACT To break electromagnetic wave absorption (EMA) tech's single‐attenuation bottleneck, enhancing multi‐wave absorption synergy in composites is key for microstructure design. This study uses mesoporous hollow carbon spheres to make metal nanospheres with cobalt, iron, and nickel nanoparticles, then encapsulates them via electrospinning into a ...
Wei‐Lian Zhang, Shuang Xu, Xia Li, Ya‐Hui Yin, Cheng‐Long Sun, Zi‐Long Yu, Chun Zhao, Di Lan, Zi‐Rui Jia, Guang‐Lei Wu, Xian‐Zhen Xu   +10 more
wiley   +1 more source

In Situ MOF Pyrolysis Construction of Hierarchical Porous Co‐Nanoparticles/Carbon Cloth Composites for Enhanced Electromagnetic Wave Shielding and Absorption

Rare Metals, EarlyView.
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du, Lei Yu, Jieping Wang, Sichun Xiong, Pengpeng Mou, Lianrui Li, Zhi Nie, Gengping Wan, Jianguo Wen, Guizhen Wang   +9 more
wiley   +1 more source

Vehicle recognition analysis in LTE based forward scattering radar [PDF]

, 2016
By integrating the forward scattering radar (FSR) mode in passive radar can provide many advantages to the conventional passive radar system. The system can benefit from the enhancement in radar cross section (RCS), the low cost and the simple receiver ...
Abdul Aziz, Noor Hafizah, Abdul Rashid, Nur Emileen, Raja Abdullah, Raja Syamsul Azmir, Salah, Asem Ahmad   +3 more
core   +1 more source

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

Rare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang, Yunpeng Qu, Qixuan Zeng, Xiaosi Qi, Yao Liu   +4 more
wiley   +1 more source

Coral‐Like Yolk–Shell‐Structured CoNi@Void@C Microspheres for Enhanced Microwave Absorption, Photothermal, Anti‐Corrosion, and Radiation Shielding Properties

Rare Metals, EarlyView.
ABSTRACT Considering the multiple challenges faced by stealth coatings in complex service environments, the development of multifunctional integrated microwave absorbing materials (MAMs) that combine efficient electromagnetic (EM) attenuation with environmental tolerance has become an urgent need. In this work, coral‐like CoNi@Void@C microparticle (MP)
Jiale Wu, Kaizhao Wang, Kaijun Wang, Hyeona Park, Jangyeon Hwang, Junkai Li, Yafei Wang, Jin Hu, Shizhao Xiong   +8 more
wiley   +1 more source