Construction of attapulgite-based one-dimensional nanonetwork composites with corrosion resistance for high-efficiency microwave absorption

作     者：Kai Xu Qingqing Gao Shaoqi Shi Pei Liu Yinxu Ni Zhilei Hao Gaojie Xu Yan Fu Fenghua Liu Kai Xu;Qingqing Gao;Shaoqi Shi;Pei Liu;Yinxu Ni;Zhilei Hao;Gaojie Xu;Yan Fu;Fenghua Liu

作者机构：School of Materials Science and Chemical EngineeringNingbo UniversityNingbo 315211China Zhejiang Key Laboratory of Additive Manufacturing MaterialsNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Northwest Yongxin Coatings Limited CompanyLanzhou 730046China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报(英文版))

年 卷 期：2025年第32卷第3期

页      面：689-698页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：support from the National Key Research and Development Program of China(No.2021YFB3701503) the Key Research and Development Program of Ningbo,China(No.2023Z107) the Jiangsu Key R&D program,China(No.BE2019072) the special project of Gansu regional science and technology cooperation,China(No.20JR10 QA579) 

主　　题：microwave absorption corrosion resistance attapulgite TiO_(2) polyaniline 

摘      要：Exploring high-efficiency and broadband microwave absorption(MA)materials with corrosion resistance and low cost is ur-gently needed for wide practical ***,the natural porous attapulgite(ATP)nanorods embedded with TiO_(2)and polyaniline(PANI)nanoparticles are synthesized via heterogeneous precipitation and in-situ *** obtained PANI-TiO_(2)-ATP one-di-mensional(1D)nanostructures can intertwine into three-dimensional(3D)conductive network,which favors energy *** min-imum reflection loss(RL_(min))of the PANI-TiO_(2)-ATP coating(20wt%)reaches-49.36 dB at 9.53 GHz,and the effective absorption band-width(EAB)can reach 6.53 GHz with a thickness of 2.1 *** excellent MA properties are attributed to interfacial polarization,mul-tiple loss mechanisms,and good impedance matching induced by the synergistic effect of PANI-TiO_(2)nanoparticle shells and ATP *** addition,salt spray and Tafel polarization curve tests reveal that the PANI-TiO_(2)-ATP coating shows outstanding corrosion resist-ance *** study provides a low-cost and high-efficiency strategy for constructing 1D nanonetwork composites for MA and corrosion resistance applications using natural porous ATP nanorods as carriers.