Scanning electrochemical microscopy study on the electrochemical behavior of CrN film formed on 304 stainless steel by magnetron sputtering

Gao, Shujun; Dong, Chaofang; Luo, Hong; Xiao, Kui; Pan, Xiaoming; Li, Yong

doi:10.1016/j.electacta.2013.10.009

Cited by 61 publications

(25 citation statements)

References 53 publications

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“…Figure shows three peaks at 575.3, 576.4, and 578.1 eV. The peak at 575.3 eV is assigned to Cr(OH) 3 [29], and the peak at 576.4 eV is attributed to Cr 2 O 3 [30][31][32], and the peak at 578.1 eV is assigned to CrO 3 [33]. Furthermore, quantitative analyses of surface compositions of Cr and O elements are summarized in content on the Cr 2 O 3 -R catalyst is higher than that on the Cr 2 O 3 -P catalyst, which is in accordance with the H 2 -TPR results.…”

Section: Catalytic Testmentioning

confidence: 97%

Morphological effects of ordered Cr2O3 nanorods and Cr2O3 nanoparticles on fluorination of 2-chloro-1,1,1-trifluoroethane

et al. 2016

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Ordered Cr 2 O 3 nanorods (Cr 2 O 3 -R) and Cr 2 O 3 nanoparticles (Cr 2 O 3 -P) were prepared by a hard template method with SBA-15 and a deposition-precipitation method, respectively. These catalysts were tested for the fluorination of 2-chloro-1,1,1-trifluoroethane (HCFC-133a) to synthesize 1,1,1,2-tetrafluoroethane (HFC-134a). It was found that both catalysts were very selective, with a HFC-134a selectivity of 98 %. However, the Cr 2 O 3 -R catalyst had an area specific reaction rate of 0.012 lmol m -2 s -1 at 320°C, which was much higher than that on the Cr 2 O 3 -P (0.005 lmol m -2 s -1 ). The enhanced activity of the Cr 2 O 3 -R was attributed to its higher content of Cr(VI) species compared to that in the Cr 2 O 3 -P, which was evidenced by the hydrogen temperature-programmed reduction and X-ray photoelectron spectroscopy results. Besides, the Cr 2 O 3 -R catalyst had a higher surface acid density (0.076 mmol m -2 ) than the Cr 2 O 3 -P (0.068 mmol m -2 ), which could be another reason for its better performance.

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Section: Catalytic Testmentioning

confidence: 97%

Morphological effects of ordered Cr2O3 nanorods and Cr2O3 nanoparticles on fluorination of 2-chloro-1,1,1-trifluoroethane

et al. 2016

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“…Under repetitive sliding, seawater could penetrate into the crack. The coating elements at the crack tip were activated and Cl À could accelerate the dissolution of the atoms in seawater [18]. As a result, the bonds between the coating atoms at the crack tip were greatly weakened.…”

Section: Wear Behaviors Of the Crn Coatings In Seawatermentioning

confidence: 99%

Improving tribological performance of CrN coatings in seawater by structure design

Shan

Wang

et al. 2015

Tribology International

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“…Recently, we used SECM to study the pitting corrosion of a CrN lm formed on 304 stainless steel in a H 3 BO 3 buffer solution containing NaCl. 104 …”

Section: Ferrous Metal Materialsmentioning

confidence: 97%

Sensing application in the precursor region of localized corrosion by scanning electrochemical microscopy

et al. 2014

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Scanning electrochemical microscopy (SECM) has been established as an indispensible tool in the analysis of corrosion. The aim of this article is to review the recent advances of this technique and its applications in measuring, characterizing and evaluating the precursor region of localized corrosion. The topography and redox activities of the metal/electrolyte solution interface at a local scale during the corrosion processes can thus be described in real time with high spatial resolution. In addition, relevant references from the advent of SECM integrated with other techniques to improve its resolution in investigating the precursor region during local corrosion are also presented with a special discussion on high resolution images.

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Scanning electrochemical microscopy study on the electrochemical behavior of CrN film formed on 304 stainless steel by magnetron sputtering

Cited by 61 publications

References 53 publications

Morphological effects of ordered Cr2O3 nanorods and Cr2O3 nanoparticles on fluorination of 2-chloro-1,1,1-trifluoroethane

Morphological effects of ordered Cr2O3 nanorods and Cr2O3 nanoparticles on fluorination of 2-chloro-1,1,1-trifluoroethane

Improving tribological performance of CrN coatings in seawater by structure design

Sensing application in the precursor region of localized corrosion by scanning electrochemical microscopy

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