Qualitative and quantitative identification of copper oxides

Su, Yea-Yang; Shemenski, R. M.

doi:10.1002/sia.2863

Cited by 18 publications

(17 citation statements)

References 55 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fate of oxidized Cu (6) was tracked during corrosion in synthetic perspiration through charge for oxide formation (copper ions incorporated into the oxide), evaluated by galvanostatic reduction, and charge transfer to the solution (copper ions dissolved into the solution), evaluated by ICP-OES, compared to the total metallic oxidation rate monitored by EIS and mass loss analysis conducted after cleaning. (7) Figures 18(a) and (b) show that charge analysis by EIS underestimates charge by mass loss but is in agreement typically achieved in corrosion studies.…”

Section: Summary Of Results and Findingsmentioning

confidence: 99%

“…Comparative GIXRD of Cu and Cu-5Zn-5Al-1Sn when freshly ground to 1200 grit, then air oxidized at ambient lab conditions, followed by exposure to synthetic perspiration solution (23°C, ambient aeration) for 130 h. Spectra are shown offset (y = 170) for ease of comparison. (6) The release of Al, Sn, and Zn were also tracked, but Sn and Al were below the detection limits in ICP-OES. (7) Charge for copper detected in solution may be either a free cation or Cu complexed with Cl − , ammonium ions, or other molecular species, as all will be detected by ICP-OES.…”

Section: Effect Of Zn Al and Sn Alloying Additions On Thin Oxides Amentioning

confidence: 98%

“…[4][5] Antimicrobial behavior in Cu alloys has been established as a result of microorganisms' interaction with Cu ions, and therefore, there is a direct correlation between antimicrobial efficacy and corrosion behavior. During the corrosion process, Cu ions can become part of one of several "fates" as a result of metal oxidation: retention in the metal oxide at the interface, 6 dissolution into the solution, 7 enrichment in the metallic phase during selective leaching or dealloying of other elements, 8 dissolution into the solution followed by precipitation on the surface of the oxide as an insoluble corrosion product, 9 or complexation with species in the environment. Only those Cu ions that are dissolved into the solution are responsible for antimicrobial behavior.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Fate of Copper during Corrosion of Cu-5Zn-5Al-1Sn (89% Cu, 5% Zn, 5% Al, 1% Sn) compared to Copper in Synthetic Perspiration Solution

Foster¹,

Hutchison²,

Scully³

2015

Corrosion

View full text Add to dashboard Cite

Cu-5Zn-5Al-1Sn (89% Cu, 5% Zn, 5% Al, 1% Sn) and UNS C11000 copper (Cu) were compared with respect to corrosion rate, film formation, and Cu release in two surface conditions pertinent to the use of antimicrobial functional materials. Electrochemical, surface characterization, and solution analysis methods were utilized to track the fate of copper during corrosion in synthetic perspiration solution in a freshly ground condition and after 30-d lab air passivation. Corrosion behavior was a function of both alloy composition and surface condition with slightly lower corrosion rates on Cu-5Zn-5Al-1Sn compared to Cu. Throughout the corrosion process, the majority of Cu was observed to undergo dissolution into the synthetic perspiration solution as copper cations for both materials, at concentrations that would suggest favorable antimicrobial functionality for both Cu-5Zn-5Al-1Sn and Cu, regardless of surface condition. In contrast, oxide films were thinner on Cu-5Zn-5Al-1Sn under all conditions. Hence, the combination of a slightly lower corrosion rate and a thinner oxide resulted in a similar Cu release rate for the two materials in synthetic perspiration.

show abstract

Section: Summary Of Results and Findingsmentioning

confidence: 99%

Section: Effect Of Zn Al and Sn Alloying Additions On Thin Oxides Amentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Fate of Copper during Corrosion of Cu-5Zn-5Al-1Sn (89% Cu, 5% Zn, 5% Al, 1% Sn) compared to Copper in Synthetic Perspiration Solution

Foster¹,

Hutchison²,

Scully³

2015

Corrosion

View full text Add to dashboard Cite

show abstract

“…2,3 Eventually, corrosion products on copper change to a stable patina. 1,4 In addition, copper sulfides, mainly cupric sulfide (Cu2S), are formed on copper surfaces in air containing H2S 2,[5][6][7] or in a solution containing S 2-ions.…”

Section: Introductionmentioning

confidence: 99%

“…For selective determination of corrosion products of copper, surface analytical techniques such as X-ray photoelectron spectroscopy (XPS), 3,[15][16][17] X-ray diffraction (XRD), 6 and infrared reflection absorption spectroscopy (IRAS) 18 have been extensively employed. These spectroscopic techniques are very useful for qualitative analysis, but are not necessarily adequate for quantitative analysis, whereas electrochemical techniques provide more reliable information on the "quantities" of corrosion products.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Determination of Copper Corrosion Products by Voltammetric Reduction in a Strongly Alkaline Electrolyte

Nakayama

Notoya²,

Osakai

2012

ANAL. SCI.

View full text Add to dashboard Cite

Pulsed Laser Induced Triple Layer Copper Oxide Structure for Durable Polyfunctionality of Superhydrophobic Coatings

Бойнович

Emelyanenko

Domantovsky

et al. 2018

Adv Materials Inter

View full text Add to dashboard Cite

anions such as chloride ions. [1,2,[4][5][6][7] This can compromise using bare copper and its alloys in technology because corrosion of copper impacts its performance in industrial and technological applications.Several ways for enhancing the corrosion protection were discussed in the literature, including the formation of thick oxide films [3,8,9] and the formation of a superhydrophobic layer atop of bulk copper. [10][11][12][13][14][15][16][17][18][19] As for oxide films on copper and copper alloys, typically the ionic state of copper can be either monovalent or divalent, associated with the formation of cuprous oxide Cu 2 O or cupric oxide CuO, respectively. In many cases, such as high temperature or anodic oxidation, the dual oxide phase formation takes place, with CuO occupying the outer and Cu 2 O the inner layers. [8,9,20,21] Such complex oxide layer has been found to be useful in improving the corrosion resistance of copper in NaCl solutions, [1,2,8,22] while the formation of a compact thick film of CuO on Cu surface prevents anodic corrosion. [23] The superhydrophobic films on metal surfaces essentially inhibit the electrochemical corrosion processes due to several protection mechanisms, such as electrolyte repellency, suppression of adsorption of aggressive ions onto the surface, barrier effect of the modified textured surface layer, and specific charging of a hydrophobic surface in electrolytes. [24,25] At the same time, for the majority of designed superhydrophobic coatings, a poor abrasive resistance restricts the practical application of these coatings. However, it was shown recently [26] that a strategy, combining the laser chemical modification of metal's surface layer and laser texturing, followed by chemisorption of low energy compounds, can be effectively used to control the mechanical and chemical properties of a superhydrophobic layer on aluminum substrate.In this study, we will demonstrate that the coatings with enhanced protective properties based on multibarrier principle can be designed on copper using the above strategy. We will show that nanosecond laser treatment in an oxygen atmosphere under appropriate laser texturing regimes followed by chemisorption of fluorooxysilane allows obtaining a thick layer of cupric oxide CuO with crystalline micro-and nanotexture and superhydrophobic properties. Triple layer copper oxide structure designed in that way allows solving the problem of durable polyfunctionality of superhydrophobic coatings. We will present Copper and its alloys are among the most used metals for the industry. However, using bare copper and its alloys in technology is compromised because corrosion and poor abrasion resistance of copper impacts its performance in industrial and technological applications. In this paper, a strategy based on combining the laser chemical modification of metal's surface in a controlled atmosphere and laser texturing, followed by chemisorption of low energy compounds is effectively used for fabrication of a superhydrophobic coating with enhanced prot...

show abstract

Qualitative and quantitative identification of copper oxides

Cited by 18 publications

References 55 publications

The Fate of Copper during Corrosion of Cu-5Zn-5Al-1Sn (89% Cu, 5% Zn, 5% Al, 1% Sn) compared to Copper in Synthetic Perspiration Solution

The Fate of Copper during Corrosion of Cu-5Zn-5Al-1Sn (89% Cu, 5% Zn, 5% Al, 1% Sn) compared to Copper in Synthetic Perspiration Solution

Highly Selective Determination of Copper Corrosion Products by Voltammetric Reduction in a Strongly Alkaline Electrolyte

Pulsed Laser Induced Triple Layer Copper Oxide Structure for Durable Polyfunctionality of Superhydrophobic Coatings

Contact Info

Product

Resources

About