Chemical Ni-C Bonding in Ni-Carbon Nanotube Composite by a Microwave Welding Method and Its Induced High-Frequency Radar Frequency Electromagnetic Wave Absorption

ACS Applied Materials & Interfaces
Linna ShaYu-Jin Chen

Abstract

In this work, a microwave welding method has been used for the construction of chemical Ni-C bonding at the interface between carbon nanotubes (CNTs) and metal Ni to provide a different surface electron distribution, which determined the electromagnetic (EM) wave absorption properties based on a surface plasmon resonance mechanism. Through a serial of detailed examinations, such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectrum, the as-expected chemical Ni-C bonding between CNTs and metal Ni has been confirmed. And the Brunauer-Emmett-Teller and surface zeta potential measurements uncovered the great evolution of structure and electronic density compared with CNTs, metal Ni, and Ni-CNT composite without Ni-C bonding. Correspondingly, except the EM absorption due to CNTs and metal Ni in the composite, another wide and strong EM absorption band ranging from 10 to 18 GHz was found, which was induced by the Ni-C bonded interface. With a thinner thickness and more exposed Ni-C interfaces, the Ni-CNT composite displayed less reflection loss.

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Citations

Aug 7, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Chen LiangZhan Shi
Nov 9, 2018·Physical Chemistry Chemical Physics : PCCP·Biao ZhaoRui Zhang
Oct 5, 2020·Advances in Colloid and Interface Science·Fail SultanovOlzhas Daulbayev
Aug 3, 2021·Journal of Colloid and Interface Science·Yuxin BiGuanglei Wu
Jul 6, 2018·ACS Applied Materials & Interfaces·Sandeep Kumar SinghKamal K Kar
Sep 22, 2021·Physical Chemistry Chemical Physics : PCCP·Jiushuai DengChul B Park

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