天冬氨酸插层ZnAl双金属氢氧化物的制备及其对铜的缓蚀性能研究  

Preparation and Inhibition Performance of Aspartic Acid Intercalated ZnAl Layered Double Hydroxides

作　　者：全贞兰[1] 张冬梅[1] 侯万国[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,青岛266042

出　　处：《腐蚀科学与防护技术》2011年第2期151-154,共4页Corrosion Science and Protection Technology

摘　　要：以锌铝层状双金属氢氧化物(LDHs)为主体,天冬氨酸(aspartic acid,Asp)为客体,采用离子交换法合成了Asp-LDHs杂化物.粉末X射线衍射(PXRD)和傅里叶变换红外光谱(FTIR)分析结果表明,天冬氨酸成功插入LDHs层间,形成杂化物.用胶体沉积技术将杂化物沉积在铜基底上,电化学阻抗谱(EIS)和极化曲线研究表明,Asp-LDHs杂化物薄膜对铜具有良好的缓蚀作用.Aspartic acids（Asp） were intercalated into ZnAl layered double hydroxides（ZnAl-LDHs） by ion exchange method.The products were characterized by powder X-ray diffration （PXRD） and fourier transform infrared spectroscopy（FTIR）.The results showed that Asp-LDHs nanohybrids were formed by the intercalation of the aspartic acid into the ZnAl layered double hydroxides.The nanohybrids were deposited on copper by colloid deposition method,and the quality and protection performance of the resulted film against corrosion were evaluated by electrochemical impedance spectroscopy（EIS） and polarization curves.All the results demonstrated that aspartic acid intercalated Zn-Al LDHs could inhibit the corrosion of copper effectively.

关 键 词：层状双金属氢氧化物 离子交换法 天冬氨酸 缓蚀 

分 类 号：TG174.46[金属学及工艺—金属表面处理]