Self-assembled monolayers of novel imidazole derivative on copper surface for anticorrosion protection in neutral medium

2021 ◽  
pp. 1-22
Author(s):  
Periyasamy Durainatarajan ◽  
Mallaiah Prabakaran ◽  
Subbaratnam Ramesh
Keyword(s):  
Copper Surface ◽  
Imidazole Derivative ◽  
Self Assembled Monolayers ◽  
Neutral Medium ◽  
Anticorrosion Protection ◽  
Assembled Monolayers ◽  
Self Assembled

Copper surface protection by organothiol self-assembled monolayers

2015 ◽  
Vol 1746 ◽  
Author(s):  
Sira Suren ◽  
Supattra Haokratoke ◽  
Soorathep Kheawhom
Keyword(s):  
Corrosion Inhibition ◽  
Coating Layer ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Oxygen Plasma Treatment ◽  
Water Contact ◽  
Surface Protection ◽  
Assembled Monolayers ◽  
Forming Temperature ◽  
Self Assembled

ABSTRACTThis work investigates the effects of concentration of organothiol molecules and temperature used during self-assembled monolayers (SAMs) formation on quality of the organothiol SAMs coating layer obtained in terms of wettability, corrosion inhibition efficiency and carbon to copper ratio. The organothiol SAMs were coated on copper substrates prepared by electro-polishing followed by oxygen plasma treatment for 15 s. Three types of organothiol SAMs including 1-octanethiol (OTT), 2-ethylhexanethiol (2-EHT) and 2-phenylethanethiol (2-PET) were investigated. Concentration of organothiol molecules ranging from 0.005 to 0.02 M in isopropanol and forming temperature ranging from -15 to 50°C were studied. It was found that all organothiol SAMs of 0.01 M provided the SAMs coating layer with the highest quality. The SAMs formed at 40°C with OTT and 2-EHT, and at 0°C with 2-PET were the most favorable condition with the highest water contact angle of 124.79o, 130.66o and 120.58o at corrosion inhibition efficiencies of 96.24%, 99.37% and 98.90%, respectively.

scholarly journals Electron-beam patterned self-assembled monolayers as templates for Cu electrodeposition and lift-off

2012 ◽  
Vol 3 ◽  
pp. 101-113 ◽  
Author(s):  
Zhe She ◽  
Andrea DiFalco ◽  
Georg Hähner ◽  
Manfred Buck
Keyword(s):  
Electron Beam ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Metal Structures ◽  
Step Procedure ◽  
Assembled Monolayers ◽  
Polycrystalline Gold ◽  
Self Assembled ◽  
Lift Off ◽  
Surface Morphologies

Self-assembled monolayers (SAMs) of 4'-methylbiphenyl-4-thiol (MBP0) adsorbed on polycrystalline gold substrates served as templates to control electrochemical deposition of Cu structures from acidic solution, and enabled the subsequent lift-off of the metal structures by attachment to epoxy glue. By exploiting the negative-resist behaviour of MBP0, the SAM was patterned by means of electron-beam lithography. For high deposition contrast a two-step procedure was employed involving a nucleation phase around −0.7 V versus Cu2+/Cu and a growth phase at around −0.35 V versus Cu2+/Cu. Structures with features down to 100 nm were deposited and transferred with high fidelity. By using substrates with different surface morphologies, AFM measurements revealed that the roughness of the substrate is a crucial factor but not the only one determining the roughness of the copper surface that is exposed after lift-off.

Self-Assembled Monolayers of Schiff Base on the Surfaces of Oxidized Copper

2008 ◽  
Vol 373-374 ◽  
pp. 649-653
Author(s):  
Dang Gang Li ◽  
Xian Jin Yu ◽  
Y.H. Dong ◽  
L.P. Zhang ◽  
Zeng Dian Zhao
Keyword(s):  
Schiff Base ◽  
Photoelectron Spectroscopy ◽  
Copper Surface ◽  
The Self ◽  
Polarization Curves ◽  
Self Assembled Monolayers ◽  
Surface Films ◽  
Assembled Monolayers ◽  
Interface Capacitance ◽  
Self Assembled

The Self-assembled monolayers (SAMs) of Schiff base had been formed on oxidized surfaces of copper. Schiff base used in this paper is N-2-hydroxyphenyl- (3-methoxy-salicylidenimine), designated V-bso. X-ray photoelectron spectroscopy (XPS), polarization curves, electrochemistry impedance spectroscopy (EIS) and the interface capacitance measurements have been employed to investigate the structure, formation and composition of these monolayers. XPS analysis show that the valence of the copper in the surface films is +2. The polarization curves and the EIS results indicate that the films of CuO, V-bso, and V-bso modified oxidized copper all have good corrosion inhibition efficiency. The IE of the V-bso modified oxidized copper is higher than that of the V-bso modified copper and the oxidized copper layer, just because the former has two layers. The results of the interface capacitance show that the self-assemble films of the V-bso on the oxidized copper surface have good potential stability.

scholarly journals Molecular simulation study of 1,5-diphenylcarbazide self-assembled monolayers on a copper surface

2007 ◽  
Vol 72 (5) ◽  
pp. 475-484 ◽  
Author(s):  
Guangzeng Liu ◽  
Shenhao Chen ◽  
Ma Hongfang ◽  
Xiuyu Liu
Keyword(s):  
Phenyl Ring ◽  
Adsorption Process ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Synergy Effect ◽  
High Coverage ◽  
Parallel Orientation ◽  
Strong Adsorption ◽  
Assembled Monolayers ◽  
Self Assembled

In this study, the adsorption process of 1,5- diphenylcarbazide (DPC) self-assembled monolayers on a copper surface was investigated by using molecular mechanics. The results indicated that the interaction of the ?-electrons in the -NH-NH- group and the ?-electrons in the phenyl ring could lead to strong adsorption of the highly symmetric DPC molecules on a copper surface. The synergy effect of the phenyl ring and the -NH-NH- group made the whole DPC molecule lay in parallel orientation on a copper surface when the coverage was low. However, at high coverage, the phenyl ring was slightly tilted because of the repulsion of the DPC molecules, while the -NH-NH- groups remained parallel to the copper surface.

Cleaning and Passivation of Copper Surface Using N2H4, and Self-Assembled Monolayers for Area-Selective Atomic Layer Deposition (AS-ALD) Applications

2020 ◽  
Vol MA2020-02 (23) ◽  
pp. 1663-1663
Author(s):  
Su Min Hwang ◽  
Jin-Hyun Kim ◽  
Sang Woo Kim ◽  
Yong Chan Jung ◽  
Jean-Francois Veyan ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Layer Deposition ◽  
Assembled Monolayers ◽  
Self Assembled

Inhibitive Effect of the Self-assembled Monolayers of Dithiocarbamate Modified Glucose on Copper Surface

2013 ◽  
Vol 30 (5) ◽  
pp. 596
Author(s):  
Shenyang ZHANG ◽  
Qiangqiang LIAO ◽  
Shaodi XU ◽  
Dong YANG ◽  
Lulu ZHAO ◽  
...  
Keyword(s):  
Copper Surface ◽  
The Self ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

SELF-ASSEMBLING BEHAVIOR AND INHIBITION EFFECT OF DODECANETHIOL SELF-ASSEMBLED MONOLAYERS ON COPPER SURFACE

2013 ◽  
Vol 20 (03n04) ◽  
pp. 1350028
Author(s):  
XIULAN ZHANG ◽  
HENG ZHANG ◽  
YIHONG YANG ◽  
ZHENYU CHEN
Keyword(s):  
Surface Friction ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Inhibition Effect ◽  
Self Assembling ◽  
Atomic Force ◽  
Phase Images ◽  
Assembled Monolayers ◽  
Self Assembled

The self-assembling behavior and inhibition effect of dodecanethiol self-assembled monolayers (SAMs) on copper surface were investigated by atomic force microscopy (AFM) and electrochemical methods. The assembling process was monitored by AFM phase images. The assembling time influences the corrosion protection efficiency of dodecanethiol SAMs. Surface friction significantly decreases when the copper surface is covered by SAMs.

scholarly journals Inhibition Effect of 3D Nanostructures on the Corrosion Resistance of 1-Dodecanethiol Self-Assembled Monolayers on Copper in Nacl Solution

2018 ◽  
Author(s):  
Shuai Hu ◽  
Zhenyu Chen ◽  
Xingpeng Guo
Keyword(s):  
Corrosion Resistance ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Nacl Solution ◽  
Simple Method ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Bare Copper ◽  
3D Nanostructure ◽  
Anticorrosion Properties

A novel and simple method to improve the corrosion resistance of copper by constructing a 3D 1-dodecanethiol self-assembled monolayers (SAMs) in 3.5% NaCl solution is reported in this study. Several drops of 1% H3PO4 solution are thinly and uniformly distributed on copper surface to form a 3D nanostructure constituted by Cu3(PO4)2 nanoflowers. The anticorrosion properties of 1-dodecanethiol SAMs on copper surface and on copper surface treated with H3PO4 solution were evaluated. Results demonstrated that 1-dodecanethiol SAMs on bare copper surface exhibit good protection capacity, whereas a copper surface pretreated with H3PO4 solution can substantially enhance the corrosion resistance of 1-dodecanethiol SAMs.

Thermal Stability of Thiolate Self-Assembled Monolayers on Copper Surface

2013 ◽  
Vol 646 ◽  
pp. 18-23 ◽  
Author(s):  
Pacharaporn Kongsumrit ◽  
Soorathep Kheawhom
Keyword(s):  
Thermal Stability ◽  
Oxygen Plasma ◽  
Copper Surface ◽  
Self Assembled Monolayers ◽  
Oxygen Plasma Treatment ◽  
Bond Stability ◽  
Assembled Monolayers ◽  
Ft Ir ◽  
Self Assembled ◽  
Thermal Stability Of

The formation of self-assembled monolayers (SAMs) of organothiol is one of the excellent methods for corrosion protection. This work studies the thermal stability of thiolate SAMs coating on a copper surface. Three types of thiolate SAMs including 1-octanethiol (OTT), 2-ethylhexanethiol (2-EHT), and 2-phenylethanethiol (2-PET) are investigated. These chemicals are similar in terms of the chemical formula but different in chemical structure. Contact angle, AFM, FT-IR, XPS, and potentiodynamic polarization are used to analyze hydrophilic and hydrophobic features, roughness, decomposition of SAMs, and corrosion inhibition efficiency, respectively. The optimum condition of oxygen plasma treatment is determined. The results show that the optimum time for the treatment is 15 s. The oxygen plasma increases roughness of the Cu surface and induces the hydrophilic feature, which is suitable for SAMs to form on the Cu surface. The Cu surfaces coated by each SAMs are annealed at the temperature ranging from 25 to 250°C. The OTT is decomposed at 80°C while the 2-EHT is decomposed at 140°C. The 2-PET is not decomposed at 140°C, because the 2-PET consists of aromatic rings that are more stable than other functional groups in OTT and 2-EHT structures. These results also refer to improvement of thiolate bond stability aided by aromatic ring in the 2-PET molecule. All SAMs are completely decomposed at 250°C. In conclusion, the 2-PET is the most favorable in terms of thermal stability.

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