scholarly journals New inhibitors for copper corrosion

2001 ◽  
Vol 73 (12) ◽  
pp. 1861-1869 ◽  
Author(s):  
Gy. Vastag ◽  
E. Szöcs ◽  
A. Shaban ◽  
E. Kálmán

The study of the effectiveness of several potential copper corrosion inhibitors in acidic media was studied. The investigated thiazole derivative functional groups contain heterocyclic atoms such as nitrogen, sulfur, and oxygen. Thiazole derivatives, 5-benzylidene-2,4-dioxotetrahydro-1,3-thiazole (BDT) 5-(4¢-isopropylbenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (IPBDT), 5-(3¢-thenylidene)-2,4-dioxotetrahydro-1,3-thiazole (TDT), and 5-(3¢,4¢-dimetoxybenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (MBDT) were tested for copper corrosion inhibition properties. The electrolyte solution was 0.1 M Na2SO4. In situ information on corrosion and inhibition processes can be obtained using different techniques. Electrochemical measurements (EIS), in situ scanning probe microscopy (SPM), in addition to quartz crystal microbalance (QCM) measurements were applied. Those methods are very useful owing to their high sensitivity and resolution. Dynamic STM and AFM measurements on Cu(111) single-crystal electrode with and without the addition of some inhibitors were performed. The presence of the isopropyl group in the case of IPBDT produced far better protection against copper corrosion in acidic sulfate-containing media than the rest of the derivatives.

2020 ◽  
Vol 12 (20) ◽  
pp. 23543-23553
Author(s):  
J. Michael Shockley ◽  
Christopher R. So ◽  
Matthew J. Strom ◽  
Raymond C.Y. Auyeung ◽  
Derek J. Horton ◽  
...  

2001 ◽  
Vol 696 ◽  
Author(s):  
F. Rosei ◽  
N. Motta ◽  
A. Sgarlata ◽  
A. Balzarotti

AbstractScanning Probe Microscopy (SPM) in situ is used to study the evolution of Ge islands grown by Physical Vapor Deposition on Si(111) 7×7 reconstructed surfaces. Large 3D islands form on the Wetting Layer (WL), with average lateral dimension in the range 200 - 500 nm. The statistical distribution of the island shapes has been analyzed, showing that three types of shapes coexist under certain conditions: strained, partially relaxed and ripened (atoll-like) islands. We measured the contact angles of the island facets, and observed the depletion of the substrate around the ripened islands. These features are attributed to the misfit strain, which is partially relieved by interdiffusion of Si into the Ge layers.


2015 ◽  
Vol 17 (34) ◽  
pp. 22235-22242 ◽  
Author(s):  
Shan Yang ◽  
Binggong Yan ◽  
Tao Li ◽  
Jing Zhu ◽  
Li Lu ◽  
...  

Band-excitation Electrochemical Strain Microscopy (BE-ESM) imaging and diffusion coefficient mapping of Li-rich cathode film.


2006 ◽  
Vol 59 (6) ◽  
pp. 359 ◽  
Author(s):  
Pall Thordarson ◽  
Rob Atkin ◽  
Wouter H. J. Kalle ◽  
Gregory G. Warr ◽  
Filip Braet

Scanning probe microscopy (SPM) techniques, including atomic force microscopy (AFM) and scanning tunnelling microscopy (STM), have revolutionized our understanding of molecule–surface interactions. The high resolution and versatility of SPM techniques have helped elucidate the morphology of adsorbed surfactant layers, facilitated the study of electronically conductive single molecules and biomolecules connected to metal substrates, and allowed direct observation of real-time processes such as in situ DNA hybridization and drug–cell interactions. These examples illustrate the power that SPM possesses to study (bio)molecules on surfaces and will be discussed in depth in this review.


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