Ultrathin protective films prepared by modification of an N,N-dimethylalkylamine monolayer with chlorosilanes for preventing corrosion of iron

Tsuji, Namie; Nozawa, K.; Aramaki, Kunitsugu

doi:10.1016/s0010-938x(00)00010-x

Cited by 35 publications

(18 citation statements)

References 13 publications

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“…This shift toward more anodic values allows for an increased deposition of the corrosion protection film [ 50 ], which further suggests an increased corrosion resistance. The protective efficiency

of the Al/Au/ZnO anode coated with aluminum hydroxide and zinc phosphite composite film was determined by [ 51 ]:

where

and

are the faradaic conductances in the presence and absence of the composite film, respectively. Here the protective efficiency of 98.5% was calculated for the Al/Au/ZnO anode coated with aluminum hydroxide and zinc phosphite composite film.…”

Section: Resultsmentioning

confidence: 99%

Corrosion Protection of Al/Au/ZnO Anode for Hybrid Cell Application

Slaughter

Stevens

2015

Membranes

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Effective protection of power sources from corrosion is critical in the development of abiotic fuel cells, biofuel cells, hybrid cells and biobateries for implantable bioelectronics. Corrosion of these bioelectronic devices result in device inability to generate bioelectricity. In this paper Al/Au/ZnO was considered as a possible anodic substrate for the development of a hybrid cell. The protective abilities of corrosive resistant aluminum hydroxide and zinc phosphite composite films formed on the surface of Al/Au/ZnO anode in various electrolyte environments were examined by electrochemical methods. The presence of phosphate buffer and physiological saline (NaCl) buffer allows for the formation of aluminum hyrdroxide and zinc phosphite composite films on the surface of the Al/Au/ZnO anode that prevent further corrosion of the anode. The highly protective films formed on the Al/Au/ZnO anode during energy harvesting in a physiological saline environment resulted in 98.5% corrosion protective efficiency, thereby demonstrating that the formation of aluminum hydroxide and zinc phosphite composite films are effective in the prevention of anode corrosion during energy harvesting. A cell assembly consisting of the Al/Au/ZnO anode and platinum cathode resulted in an open circuit voltage of 1.03 V. A maximum power density of 955.3 μW/ cm2 in physiological saline buffer at a cell voltage and current density of 345 mV and 2.89 mA/ cm2, respectively.

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of the Al/Au/ZnO anode coated with aluminum hydroxide and zinc phosphite composite film was determined by [ 51 ]:

where

and

Section: Resultsmentioning

confidence: 99%

Corrosion Protection of Al/Au/ZnO Anode for Hybrid Cell Application

Slaughter

Stevens

2015

Membranes

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“…Figure 2 presents a scheme of the suggested mechanism of the anticorrosive action of a surface siloxane layer [23]. The first studies on the effect of surface organosilicon layers on metal corrosion were started in the 1980s [50,51] and continued in the 1990s [28,29], 2000s [19,37,[61][62][63], and 2010s [19,37,68,[57][58][59]63]. It was shown that surface modification of steel, Al, Mg, and Zn decreased the rates of anodic dissolution and corrosion of these metals, including those under polymer coatings [44,50].…”

Section: The Effect Of Surface Siloxane Layers On Metal Corrosionmentioning

confidence: 99%

“…In [61], the effect of hydrophilic amino groups on the corrosion resistance of a γ-APS film formed on iron was studied. The previous finding was confirmed that the amino groups in the γ-APS molecule can compete with silanol groups in the formation of bonds with the surface [54] to produce a hydrophilic surface.…”

Section: =N + H + ↔ =Nh + (7)mentioning

confidence: 99%

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The use of organosilanes to inhibit metal corrosion. A review

Петрунин¹,

Gladkikh²,

Малеева³

et al. 2019

Int. J. Corros. Scale Inhib.

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A review of scientific and technical literature on the development of methods for the deposition of organosilicon coatings by modifying metal surfaces with organosilanes before applying an anti-corrosion polymer or paint coating is presented. The review covers scientific and technical information concerning the achievements in the deposition of organosilicon nanolayers on various metal surfaces and their characterization by modern research methods. The choice of organosilanes capable of creating siloxane surface layers that significantly increase the anticorrosive efficiency of a polymer/paint coating, i.e. providing both efficient corrosion protection and high adhesion of the polymer coating to the metal, is considered and justified. The processes that occur upon hydrolysis of organosilanes in aqueous solutions and upon interaction of silanes with a metal surface are considered. The main theories that describe the finishing action of organosilanes at a metal-polymer interface and the hypotheses that explain the mechanism of the formation of metal-siloxane bonds with the surface are presented. The mechanism of the anticorrosive action of siloxane surface layers is considered. The application of surface layers formed on a metal by modification with aqueous solutions of environmentally safe organosilanes for replacement of conversion coatings obtained by surface treatment with toxic hexavalent chromium compounds is discussed. It is shown that corrosion inhibitors are added to modifying aqueous organosilane compounds in order to enhance the anticorrosive efficiency of coatings and to provide the "self-healing" effect. Information on the synergistic effect of mixtures of organosilanes with corrosion inhibitors is provided and the mechanism of synergistic action of the mixtures is discussed.

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“…Strong and stable bonds are formed between the inhibitor and the metal surface during the self-assembling process. Iron is a widely used metal with extensive applications in industry and the study of its corrosion inhibition has attracted lots of interest [9][10][11]. But it is difficult to form self-assembled films on the iron surface because of its spontaneous oxidation trend in atmosphere.…”

Section: Introductionmentioning

confidence: 99%