>
Fa   |   Ar   |   En
   Graphene Oxide Active Anti-Corrosion Properties Improvement Through Applying Green-Organic/Inorganic Inhibitors  
   
DOR 20.1001.2.0021079099.1400.8.1.92.2
نویسنده Ramezanzadeh Bahram
منبع كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
چکیده    The use of corrosion inhibitors in organic coatings' structure is one of the most important strategies to enhance the coatings' resistance against corrosive species attacks especially in the case of coating damage, providing durable anti-corroison systems with smart self-healing cability. in this regard, the high surface-area barrier pigment based on graphene oxide nanosheets have been used as a carrier of the corrosion inhibitors. in the present study the mixture of malva sylvestris leaf extract and zinc cations were adsorbed on the go nanosheets via physical/chemical bonding. the synthesized nano-carriers corrosion inhibition effects were studied in 3.5 wt. % nacl solution using various electrochemical techniques such as electrochemical impedance spectroscopy (eis) and polarization test. scanning electron microscopy (sem) equipped with energy dispersive spectroscopy, fourier-transform infrared spectroscopy, raman spectroscopy, x-ray diffraction pattern, and uv-vis test were also conducted to characterize the synthesized particles. the characterization results of the synthesized particles showed the malva-zn hybrids formation on the go surface. also, the findings of the electrochemical tests showed that the inhibitors loaded on the go nanosheets were gradually released during the time and improved the corrosion resistance of the metallic substrate. the inhibition efficiency values of 95% and 63% were obtained for the synthesized nanocapsules loaded with two inhibitors and the graphene oxide reduced by organic inhibitors, respectively. also, the rp values of 95937 and 4127 ω.cm2 were obtained for these two systems, respectively.
کلیدواژه Chemical Modification Of Graphene Oxide ,Intelligent Release ,Malva Sylvestris Leaf Extract
آدرس Institute For Color Science And Technology, Surface Coating And Corrosion Department, Iran, Tarbiat Modares University, Tarbiat Modares University
 
   Graphene oxide active anti-corrosion properties improvement through applying green-organic/inorganic inhibitors  
   
Authors Ramezanzadeh Bahram
Abstract    The use of corrosion inhibitors in organic coatings' structure is one of the most important strategies to enhance the coatings' resistance against corrosive species attacks especially in the case of coating damage, providing durable anti-corroison systems with smart self-healing cability. In this regard, the high surface-area barrier pigment based on graphene oxide nanosheets have been used as a carrier of the corrosion inhibitors. In the present study the mixture of Malva sylvestris leaf extract and zinc cations were adsorbed on the GO nanosheets via physical/chemical bonding. The synthesized nano-carriers corrosion inhibition effects were studied in 3.5 wt. % NaCl solution using various electrochemical techniques such as electrochemical impedance spectroscopy (EIS) and polarization test. Scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction pattern, and UV-Vis test were also conducted to characterize the synthesized particles. The characterization results of the synthesized particles showed the Malva-Zn hybrids formation on the GO surface. Also, the findings of the electrochemical tests showed that the inhibitors loaded on the GO nanosheets were gradually released during the time and improved the corrosion resistance of the metallic substrate. The inhibition efficiency values of 95% and 63% were obtained for the synthesized nanocapsules loaded with two inhibitors and the graphene oxide reduced by organic inhibitors, respectively. Also, the Rp values of 95937 and 4127 Ω.cm2 were obtained for these two systems, respectively.
Keywords Chemical modification of graphene oxide ,Intelligent release ,Malva sylvestris leaf extract
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved