基于氧化铁模板原位制备Ni/Fe-LDHs/Fe薄膜及其性能研究  

In situ synthesis process and properties of Ni/Fe-LDHs/Fe film based on ferric oxide template

作　　者：杜宝中[1] 陆宁 张倩岚 王妙娟 DU Baozhong;LU Ning;ZHANG Qianlan;WANG Miaojuan(Department of Applied Chemistry,Xi'an University of Technology,Xi'an 710048,China;Refinry,Petro China Urumqi Petrochemical Company,Urumqi 830019,China)

机构地区：[1]西安理工大学应用化学系,西安710048 [2]中国石油乌鲁木齐石化分公司炼油厂,乌鲁木齐830019

出　　处：《功能材料》2019年第5期5160-5165,共6页Journal of Functional Materials

基　　金：西安市工业科技攻关资助项目(YF07058)

摘　　要：采用模版原位生长技术,以NH_3·H_2O调节Ni(NO_3)_2-NH_4NO_3反应溶液pH值,形成镍氨配离子达到缓慢释放Ni^(2+),实现了在阳极氧化铁模板(AFO/Fe)上制备Ni/Fe-NO_3-LDHs/Fe薄膜前驱体;然后,通过离子交换反应将磺基水杨酸阴离子(SSA)插层制备了Ni/Fe-SSA-LDHs/Fe复合薄膜。借助XRD、FT-IR、SEM、UV-Vis、TG/DTA及电化学测试等手段对LDHs薄膜结构及性能进行了表征与分析。结果显示,SSA阴离子插入LDHs层间,插层距由0.9051 nm扩至1.1837 nm,水滑石晶片主要以c轴平行于氧化铁模版生长。该薄膜表现出优异的耐蚀性和紫外阻隔性能。A Ni/Fe-NO 3-LDHs/Fe film was prepared on anodized Fe substrate by template in-situ growth method. The pH of the reaction solution was adjusted by NH 3·H 2O to release Ni 2+ slowly by the formation of nickel-ammonia complexion. Sulfosalicylic acid anion intercalated Ni/Fe-SSA-LDHs/Fe composite film was synthesized through ion-exchange method using the Ni/Fe-NO 3-LDHs/Fe film as precursor. The prepared film was investigated by XRD,FT-IR,SEM,UV-Vis,TG/DTA and electrochemical test. The results confirmed the successful incorporation of SSA anions into the interlayer galleries of NI/Fe-LDHs with an expansion of d-spacing from 0.9051 to 1.1837 nm. The LDHs films were mainly oriented with the c axis of the platelet crystallites parallel to the substrate surface. The results indicated that the as-prepared LDHs films possessed excellent corrosion-resistant and UV absorption properties.

关 键 词：氧化铁模板 LDHs薄膜 插层组装 缓蚀 紫外阻隔 

分 类 号：TQ174[化学工程—陶瓷工业]