Morphology-controlled CoNi/C hybrids with bifunctions of efficient anti-corrosion and microwave absorption
Ge, Jianwen1; Cui, Yu2; Qian, Jiaxin1; Liu, Li1; Meng, Fandi1; Wang, Fuhui1
Corresponding AuthorLiu, Li(
AbstractTill now, fewer literatures have investigated the corrosion resistance of microwave absorbers, especially mental@C/carbon matrix derived from MOF composites, although it is known that carbon shells possess a protective effect. Herein, three kinds of morphology-controlled CoNi/C-N doped architectures were successfully fabricated via a sequence of processing, namely coprecipitation for ZIF-67, subsequent Ni2+ exchange and ultimate carbonization. Apart from composition characterization, the effects of microstructure tailoring and temperature controlling on electromagnetic response as well as attenuation performance were revealed, where dodecahedron-shaped composites possessed the highest permittivity. By contrast, rod-shaped composites (CoNi/C-r-550 and CoNi/C-r-700) were endowed with superior comprehensive absorption properties, e.g., RLmin: -49.8 dB and -64.0 dB; EAB: 5.7 GHz and 4.8 GHz, respectively. Besides, samples CoNi/C-d-700 and CoNi/C-r-700 present higher corrosion potential (E-corr) and lower corrosion current (I-corr). Hence, these corrosion-resistant microwave absorbers with outstanding absorption stability, wetting effect as well as environmental adaptability, can be used as a candidate/raw material for intelligent devices. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordElectromagnetic response Morphological-anisotropic Anticorrosive ZIF-67
Funding OrganizationNational Natural Sci-ence Foundation of China
Indexed BySCI
Funding ProjectNational Natural Sci-ence Foundation of China[U20B2026] ; National Natural Sci-ence Foundation of China[51871049]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000778403000004
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Document Type期刊论文
Corresponding AuthorLiu, Li
Affiliation1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
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Ge, Jianwen,Cui, Yu,Qian, Jiaxin,et al. Morphology-controlled CoNi/C hybrids with bifunctions of efficient anti-corrosion and microwave absorption[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,102:24-35.
APA Ge, Jianwen,Cui, Yu,Qian, Jiaxin,Liu, Li,Meng, Fandi,&Wang, Fuhui.(2022).Morphology-controlled CoNi/C hybrids with bifunctions of efficient anti-corrosion and microwave absorption.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,102,24-35.
MLA Ge, Jianwen,et al."Morphology-controlled CoNi/C hybrids with bifunctions of efficient anti-corrosion and microwave absorption".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 102(2022):24-35.
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