Double electrolyte sensor for monitoring hydrogen permeation rate in steels

Ouyang, Yongzhong; Yu, Gang; Ou, Anping; Hu, Lingling; Wang, Xu

doi:10.1016/j.corsci.2011.03.002

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…A double electrolyte cell of the type developed by Devanathan and Stachurski was used in this work. 35 The structural of our DS cell is shown in Fig. 1.…”

Section: Hydrogen Permeation Detection Methodsmentioning

confidence: 99%

“…Many researchers have developed improved electrochemical hydrogen sensors based on the DS cell design. [15][16][17][18][19][20] In addition, a number of different sensors for the detection of hydrogen have been demonstrated based on sensitive coatings on steel using palladium, [21][22][23] platinum, 24 polyaniline 25,26 or nickel, 27 as well as combinations of these materials. [28][29][30] These sensors are based on detection of the oxidation of hydrogen that has permeated through the steel to reach the exterior surface of the coating.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Ni or Pd coatings on oxidation of permeated hydrogen

Ouyang

et al. 2013

Surface Engineering

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The influence of Pd and Ni coatings on the oxidisation of hydrogen that permeated through a thin iron membrane was studied for the development of a hydrogen sensor. The minimum electroplating period and current density to produce compact Ni and Pd coatings were investigated. The ideal potential ranges for complete oxidation of the hydrogen that permeated through an iron membrane were found to be z0?20 to z0?50 V(Ni) (voltage versus the voltage on nickel wire) and z0?30 to z0?40 V(Ni) for the Pd and Ni coatings respectively; the Pd coating provides a wider window for oxidation. The optimum potential for the oxidation of hydrogen on Ni coating was found to be 0?35 V(Ni). Ni coating could achieve the same detection efficiency as a Pd coating with the appropriate applied potential.

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“…A double electrolyte cell of the type developed by Devanathan and Stachurski was used in this work. 35 The structural of our DS cell is shown in Fig. 1.…”

Section: Hydrogen Permeation Detection Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Ni or Pd coatings on oxidation of permeated hydrogen

Ouyang

et al. 2013

Surface Engineering

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“…In permeation processes, knowing the mechanism and the intensity of hydrogen permeation across metallic membranes is critical. These membranes, when investigated as sensors, are usually selected based on their high permeability and their high selectivity to hydrogen [3,4]. Various research groups have studied hydrogen permeation in materials that contain iron [5].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical detection of hydrogen uptake in electrodeposited nickel/nickel hydroxide system to prevent corrosion process

Santos¹,

Silva²,

Sanches³

et al. 2014

Proceedings of the 1st International Seminar on Industrial Innovation in Electrochemistry

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Brazil has been emphasizing the processing of heavy oils with high corrosivity. This deterioration involved the hydrogen permeation. Electrochemical techniques were used to study the behavior of nickel electrodeposited on a stainless steel during hydrogen charging cycles. The variation of the electrochemical parameters, such as the open-circuit potential indicates the possible presence of hydrogen in the electrodeposited nickel. The XRD analyses show a stable electrode before and after the hydrogen charging cycles. This methodology was efficient for the detection of hydrogen in its early stages of incorporation into the electrode and for the detection of chemical interactions with metallic structures. ARTICLE TH 66Electrochemical detection of hydrogen uptake in electrodeposited nickel/nickel hydroxide system to prevent corrosion process *Corresponding author: claudiamarino@ufpr.br; phone/fax number +55 41 3361-3129UFPR:

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