scholarly journals Inhibition Effect of Three-Dimensional (3D) Nanostructures on the Corrosion Resistance of 1-Dodecanethiol Self-Assembled Monolayer on Copper in NaCl Solution

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1225 ◽  
Author(s):  
Shuai Hu ◽  
Zhenyu Chen ◽  
Xingpeng Guo
Keyword(s):  
Corrosion Resistance ◽  
Three Dimensional ◽  
Copper Surface ◽  
Nacl Solution ◽  
Self Assembled Monolayer ◽  
Simple Method ◽  
Self Assembled ◽  
Bare Copper ◽  
3D Nanostructure ◽  
Anticorrosion Properties

A novel and simple method to improve the corrosion resistance of copper by constructing a three-dimensional (3D) 1-dodecanethiol self-assembled monolayer (SAM) 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 SAM on copper surface and on copper surface that is treated with H3PO4 solution were evaluated. Results demonstrated that 1-dodecanethiol SAM on bare copper surface exhibits good protection capacity, whereas a copper surface that is pretreated with H3PO4 solution can substantially enhance the corrosion resistance of 1-dodecanethiol SAM.

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.

Ambient Copper-Copper Thermocompression Bonding using Self Assembled Monolayers

2008 ◽  
Vol 1112 ◽  
Author(s):  
Xiaofang Ang ◽  
Jun Wei ◽  
Zhong Chen ◽  
Chee Cheong Wong
Keyword(s):  
Bonding Temperature ◽  
Three Dimensional ◽  
Copper Surface ◽  
Physical Contact ◽  
Ambient Conditions ◽  
Thermal Dependence ◽  
Self Assembled Monolayer ◽  
Assembled Monolayers ◽  
Thermocompression Bonding ◽  
Self Assembled

AbstractA typical copper-copper thermocompression bonding process is carried out in an ultrahigh vacuum (UHV) or inert environment at a bonding temperature >300°C. The ultraclean environment serves a single purpose – to maintain oxide-free copper surfaces, allowing intimate physical contact between copper atoms. This study investigates the temperature dependence of direct copper bonding from room temperature to 300°C under ambient condition. An anomalous thermal dependence of bond strength occurs between 80°C to 140°C where an increase in bonding temperature within this regime is in fact, detrimental to joint strength. This is interpreted as a thermal competition between oxidation and bond formation. This study also demonstrates that by simply coating the copper surface with a self assembled monolayer of 1-undecanethiol prior to bonding, Cu joints can be successfully formed at close to ambient temperature without a vacuum, yielding joint shear strengths on the order of 70MPa. The densely packed monolayer serves to passivate the copper surface against oxidation under ambient conditions. The ultrathin organic monolayer structure, as compared to a bulk oxide layer, could be easily displaced during the mechanical deformation at the bonding interface which accompanies thermocompression. This method could be an effective simple bonding solution for three-dimensional integrated chips.

Contact Angle Variation on a Copper Surface Treated With Self-Assembled Monolayer (SAM) of N-octadecyl Mercaptan

2011 ◽  
Vol 133 (8) ◽  
Author(s):  
Yulong Ji ◽  
Hsiu-hung Chen ◽  
Qingsong Yu ◽  
Xuehu Ma ◽  
H. B. Ma
Keyword(s):  
Contact Angle ◽  
Copper Surface ◽  
Self Assembled Monolayer ◽  
Angle Variation ◽  
Self Assembled

Periodically ordered nanohetero inorganic structures of nanoparticles, nanorods and layers in a matrix from self-assembled block copolymers

2014 ◽  
Vol 1706 ◽  
Author(s):  
Hiroaki Wakayama ◽  
Hirotaka Yonekura ◽  
Yasuaki Kawai
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Three Dimensional ◽  
Functional Materials ◽  
Domain Size ◽  
Great Promise ◽  
Layer By Layer ◽  
Simple Method ◽  
Self Assembled ◽  
Size And Morphology

ABSTRACTPeriodically ordered nanohetero inorganic structures offer great promise due to their unique electric, ionic, magnetic, and photonic properties. Many studies have focused on the formation of periodically ordered nano-hetero inorganic structures through layer-by-layer adsorption, sputtering, and self-assembly methods. However, the construction of three-dimensional periodically ordered nanohetero inorganic structures with desired sizes and morphologies remains a great challenge. We present a simple method for producing three-dimensional periodically ordered inorganic nanoheterostructures with controlled shape and size by replicating self-assembled block copolymers (BCPs) containing precursors of metals and metal oxides. Precursors were dissolved with BCPs in a solvent. Upon evaporation of the solvent, each precursor was selectively introduced into a separate polymer block. Application of an external magnetic field (10 T) to the BCP-precursor composites resulted in a phase transition of from spheres to hexagonal cylinders. Subsequent pyrolytic removal of the BCPs produced periodically ordered nanoheterostructures that were structural replicates of the precursor–BCP composites. Self-assembled nano-hetero inorganic structures of nanoparticles, nanorods and layers in a matrix were produced. The morphology and domain size can be tailored by controlling the molecular weight and relative block length of block copolymers. The controlled size and morphology of the inorganic nanoheterostructures demonstrate the method’s utility for producing highly functional materials.

Surface protection of copper in 3% NaCl solution by using 1-(n-butyl)imidazole self-assembled monolayer

2018 ◽  
Vol 5 (8) ◽  
pp. 16226-16236 ◽  
Author(s):  
P. Durainatarajan ◽  
M. Prabakaran ◽  
S. Ramesh ◽  
V. Periasamy
Keyword(s):  
Nacl Solution ◽  
Self Assembled Monolayer ◽  
Surface Protection ◽  
Self Assembled

scholarly journals 4-Phenylpyrimidine monolayer protection of a copper surface from salt corrosion

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7340-7349 ◽  
Author(s):  
N. Wei ◽  
Y. Jiang ◽  
Z. Liu ◽  
Y. Ying ◽  
X. Guo ◽  
...  
Keyword(s):  
Copper Surface ◽  
Nacl Solution ◽  
Salt Corrosion ◽  
Self Assembled

The efficiency of a 4-phenylpyrimidine monolayer optimally self-assembled on a copper surface against corrosion by a 3 wt% NaCl solution could reach 83.2%.

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