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Investigation of corrosion inhibition activity of 3-butyl-2,4,5-triphenylimidazole and 3-butyl-2-(2-butoxyphenyl)-4,5-diphenylimidazole toward carbon steel in 1% NaCl solution
Zunita M.a, Wahyuningrum D.a, Bucharia, Bundjali B.a
a Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Overcoming of corrosion problem on the surface of carbon steel is still being developed until present. The recent publications showed that the corrosion inhibitor with good hydrophobic properties and strong interaction with the carbon steel surface is needed. Therefore, 3-butyl-2,4,5-triphenylimidazole and 3-butyl-2-(2-butoxyphenyl)-4,5-diphenylimidazole were synthesized to be applied as corrosion inhibitors. The synthesis of 3-butyl-2,4,5-triphenylimidazole (1) and 3-butyl-2-(2-butoxyphenyl)-4,5-diphenylimidazole (2) were carried out by a Microwave Assisted Organic Synthesis (MAOS) method. The results of Electrochemical Impedance Spectroscopy (EIS) measurements show that the adsorption mechanism of 3-butyl-2,4,5-triphenylimidazole and 3-butyl-2-(2-butoxyphenyl)-4,5-diphenylimidazole onto carbon steel surface obeyed Langmuir adsorption isotherm with the value of ΔG ads are -34.49 kJ.mol -1 and -40.19 kJ.mol -1, respectively, which correspond to the spontaneous interaction between corrosion inhibitors and carbon steel surface by semi-chemisorptions and chemisorptions interaction. © 2012 by ESG.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]3-butyl-2,4,5-triphenylimidazole,3-butyl-2-(2-butoxyphenyl)-4,5-diphenylimidazole,Corrosion inhibitors,Electrochemical impedance spectroscopy,Microwave assisted organic synthesis (MAOS) method[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]