Convenient design of anti-wetting nano-Al/WO_(3)metastable intermolecular composites(MICs)with an enhanced exothermic life-span

作     者：Xiaogang Guo Taotao Liang Junfeng Guo Huisheng Huang Shuying Kong Jianwei Shi Binfang Yuan Qi Sun Xiaogang Guo;Taotao Liang;Junfeng Guo;Huisheng Huang;Shuying Kong;Jianwei Shi;Binfang Yuan;Qi Sun

作者机构：Chongqing Key Laboratory of Inorganic Special Functional MaterialsCollege of Chemistry and Chemical EngineeringYangtze Normal UniversityChongqing408100PR China Chongqing Sports Medicine CenterDepartment of Orthopedic SurgerySouthwest HospitalThe Third Military Medical UniversityChongqing40038China College of Life SciencesChongqing Normal UniversityChongqing401331China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2023年第20卷第2期

页      面：84-92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：funded by the financial support from National Natural Science Foundation of China(Grant No 21805014 and No82102635) Science and Technology Research Project of Chongqing Education Board(Grant No.KJQN201901428) 

主　　题：Electrophoresis assembly Al/WO_(3)MICs Fluorination treatment Anti-wetting property Exothermic life-span 

摘      要：For solving the dilemma of the short exothermic life-span of WO_(3)based metastable interstitial composites(MICs)with extensive application prospect,this paper has firstly designed the promising antiwetting Al/WO_(3)MICs via electrophoresis assembly of nano-Al and WO_(3)particles fabricated by hydrothermal synthesis method,followed by the subsequent fluorination treatment.A combination of X ray diffraction(XRD),field emission scanning electron microscope(FESEM),energy dispersive X-ray spectroscopy(EDX),and Fourier transform infrared spectroscopy(FT-IR)techniques were utilized in order to characterize the crystal structure,microstructure,and elemental composition distribution of target films after different natural exposure *** product with uniform distribution and high purity possesses a high contact angle of~170°and a minute sliding angle of~1°,and displays the outstanding anti-wetting property using droplets with different surface *** also shows great moisture stability in high relative-humidity circumstances after one year of the natural exposure ***,the heat output of a fresh sample can reach up to 2.3 kJ/g and retain 96%after the whole exposure test,showing outstanding thermo-stability for at least one *** work further proposed the mechanism of antiwetting Al/WO_(3)MICs considering the variation tendency of their DSC curve,providing a valuable theoretical reference for designing other self-protected MICs with a long exothermic life-span applied in wide fields of national defense,military industry,etc.