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The durability of different elements doped manganese dioxide-coated anodes for oxygen evolution in seawater electrolysis

Manganese-molybdenum (Mn-Mo), manganese-molybdenum-vanadium (Mn-Mo-V), manganese-molybdenum-iron (Mn-Mo-Fe) and manganese-iron-vanadium (Mn-Fe-V) anodes were prepared by anodic electrodeposition on iridium oxide-coated titanium substrates for oxygen evolution in seawater electrolysis. XRD, FES, EDX... Full description

Journal Title: Surface & Coatings Technology 15 June 2012, Vol.206(21), pp.4362-4367
Main Author: Jiang, Nan
Other Authors: Meng, Hui-Min
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0257-8972 ; E-ISSN: 1879-3347 ; DOI: 10.1016/j.surfcoat.2012.04.059
Link: http://dx.doi.org/10.1016/j.surfcoat.2012.04.059
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recordid: elsevier_sdoi_10_1016_j_surfcoat_2012_04_059
title: The durability of different elements doped manganese dioxide-coated anodes for oxygen evolution in seawater electrolysis
format: Article
creator:
  • Jiang, Nan
  • Meng, Hui-Min
subjects:
  • Manganese Dioxide Anode
  • Seawater Electrolysis
  • Oxygen Evolution Efficiency
  • Durability Test
  • Manganese Dioxide Anode
  • Seawater Electrolysis
  • Oxygen Evolution Efficiency
  • Durability Test
  • Engineering
  • Chemistry
ispartof: Surface & Coatings Technology, 15 June 2012, Vol.206(21), pp.4362-4367
description: Manganese-molybdenum (Mn-Mo), manganese-molybdenum-vanadium (Mn-Mo-V), manganese-molybdenum-iron (Mn-Mo-Fe) and manganese-iron-vanadium (Mn-Fe-V) anodes were prepared by anodic electrodeposition on iridium oxide-coated titanium substrates for oxygen evolution in seawater electrolysis. XRD, FES, EDX and oxygen evolution efficient analysis revealed that the prepared anodes had a γ-MnO2 structure and show a unique mesh-like nanostructure. Oxygen evolution efficiencies were all measured to be more than 99%. The durability tests were performed at 1000A·m−2 in 3.5wt% NaCl solution at pH 12 and 90°C. The Mn-Fe-V anode was the most stable electrode during the sea water electrolysis, and maintained an oxygen evolution efficiency of 87.96% even after 500h. It has been found that the main reason for the eventual decrease in oxygen evolution efficiency was partly because of the peeling and electrochemical dissolution of the oxide layer after electrolysis. Also, it was found that the addition...
language: eng
source:
identifier: ISSN: 0257-8972 ; E-ISSN: 1879-3347 ; DOI: 10.1016/j.surfcoat.2012.04.059
fulltext: fulltext
issn:
  • 0257-8972
  • 02578972
  • 1879-3347
  • 18793347
url: Link


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titleThe durability of different elements doped manganese dioxide-coated anodes for oxygen evolution in seawater electrolysis
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subjectManganese Dioxide Anode ; Seawater Electrolysis ; Oxygen Evolution Efficiency ; Durability Test ; Manganese Dioxide Anode ; Seawater Electrolysis ; Oxygen Evolution Efficiency ; Durability Test ; Engineering ; Chemistry
descriptionManganese-molybdenum (Mn-Mo), manganese-molybdenum-vanadium (Mn-Mo-V), manganese-molybdenum-iron (Mn-Mo-Fe) and manganese-iron-vanadium (Mn-Fe-V) anodes were prepared by anodic electrodeposition on iridium oxide-coated titanium substrates for oxygen evolution in seawater electrolysis. XRD, FES, EDX and oxygen evolution efficient analysis revealed that the prepared anodes had a γ-MnO2 structure and show a unique mesh-like nanostructure. Oxygen evolution efficiencies were all measured to be more than 99%. The durability tests were performed at 1000A·m−2 in 3.5wt% NaCl solution at pH 12 and 90°C. The Mn-Fe-V anode was the most stable electrode during the sea water electrolysis, and maintained an oxygen evolution efficiency of 87.96% even after 500h. It has been found that the main reason for the eventual decrease in oxygen evolution efficiency was partly because of the peeling and electrochemical dissolution of the oxide layer after electrolysis. Also, it was found that the addition...
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Manganese-molybdenum (Mn-Mo), manganese-molybdenum-vanadium (Mn-Mo-V), manganese-molybdenum-iron (Mn-Mo-Fe) and manganese-iron-vanadium (Mn-Fe-V) anodes were prepared by anodic electrodeposition on iridium oxide-coated titanium substrates for oxygen evolution in seawater electrolysis. XRD, FESEM, EDX and oxygen evolution efficient analysis revealed that the prepared anodes had a γ-MnO2 structure and show a unique mesh-like nanostructure. Oxygen evolution efficiencies were all measured to be more than 99%. The durability tests were performed at 1000A·m−2 in 3.5wt% NaCl solution at pH 12 and 90°C. The Mn-Fe-V anode was the most stable electrode during the sea water electrolysis, and maintained an oxygen evolution efficiency of 87.96% even after 500h. It has been found that the main reason for the eventual decrease in oxygen evolution efficiency was partly because of the peeling and electrochemical dissolution of the oxide layer after electrolysis. Also, it was found that the addition...

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Manganese-molybdenum (Mn-Mo), manganese-molybdenum-vanadium (Mn-Mo-V), manganese-molybdenum-iron (Mn-Mo-Fe) and manganese-iron-vanadium (Mn-Fe-V) anodes were prepared by anodic electrodeposition on iridium oxide-coated titanium substrates for oxygen evolution in seawater electrolysis. XRD, FESEM, EDX and oxygen evolution efficient analysis revealed that the prepared anodes had a γ-MnO2 structure and show a unique mesh-like nanostructure. Oxygen evolution efficiencies were all measured to be more than 99%. The durability tests were performed at 1000A·m−2 in 3.5wt% NaCl solution at pH 12 and 90°C. The Mn-Fe-V anode was the most stable electrode during the sea water electrolysis, and maintained an oxygen evolution efficiency of 87.96% even after 500h. It has been found that the main reason for the eventual decrease in oxygen evolution efficiency was partly because of the peeling and electrochemical dissolution of the oxide layer after electrolysis. Also, it was found that the addition...

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lad01Surface & Coatings Technology
date2012-06-15