Electrochemical Studies of Corrosion in Liquid Electrolytes for Energy Conversion Applications at Elevated Temperatures

Aleksey Valerievich Nikiforov, Irina Petrushina, Niels J. Bjerrum

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

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Abstract

Stainless steels (AISI 316, 321 and 347), high-nickel alloys (Hasteloy®C-276 and Inconel®625), tantalum, nickel, titanium, tungsten, molybdenum, niobium, platinum, and gold were tested for corrosion resistance in molten KH2PO4 (or KH2PO4-K2H2P2O7) as a promising electrolyte for the intermediate-temperature (200–400°C) water electrolysis. Pt, Ta, Nb, Ti, Inconel®625, and Ni demonstrated high corrosion resistance. Au and the rest of the tested materials were not corrosion resistant. It means that Ni, Ti and Inconel®625 may be used as relatively cheap construction materials for the intermediate-temperature water electrolyzer.
Original languageEnglish
Title of host publicationHigh Temperature Corrosion
EditorsZaki Ahmad
PublisherInTechOpen
Publication date2016
Pages89-100
Chapter5
ISBN (Print)978-953-51-2507-5
ISBN (Electronic)978-953-51-2508-2
DOIs
Publication statusPublished - 2016

Bibliographical note

Published: September 7, 2016 under CC BY 3.0 license. © The Author(s).

Keywords

  • Intermediate-temperature electrolysis
  • Bipolar plate
  • Nickel stability
  • Corrosion
  • Oxygen evolution
  • Molten salts

Cite this

Nikiforov, A. V., Petrushina, I., & Bjerrum, N. J. (2016). Electrochemical Studies of Corrosion in Liquid Electrolytes for Energy Conversion Applications at Elevated Temperatures. In Z. Ahmad (Ed.), High Temperature Corrosion (pp. 89-100). InTechOpen. https://doi.org/10.5772/64003
Nikiforov, Aleksey Valerievich ; Petrushina, Irina ; Bjerrum, Niels J. / Electrochemical Studies of Corrosion in Liquid Electrolytes for Energy Conversion Applications at Elevated Temperatures. High Temperature Corrosion. editor / Zaki Ahmad. InTechOpen, 2016. pp. 89-100
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keywords = "Intermediate-temperature electrolysis, Bipolar plate, Nickel stability, Corrosion, Oxygen evolution, Molten salts",
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Electrochemical Studies of Corrosion in Liquid Electrolytes for Energy Conversion Applications at Elevated Temperatures. / Nikiforov, Aleksey Valerievich; Petrushina, Irina; Bjerrum, Niels J.

High Temperature Corrosion. ed. / Zaki Ahmad. InTechOpen, 2016. p. 89-100.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

TY - CHAP

T1 - Electrochemical Studies of Corrosion in Liquid Electrolytes for Energy Conversion Applications at Elevated Temperatures

AU - Nikiforov, Aleksey Valerievich

AU - Petrushina, Irina

AU - Bjerrum, Niels J.

N1 - Published: September 7, 2016 under CC BY 3.0 license. © The Author(s).

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Y1 - 2016

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AB - Stainless steels (AISI 316, 321 and 347), high-nickel alloys (Hasteloy®C-276 and Inconel®625), tantalum, nickel, titanium, tungsten, molybdenum, niobium, platinum, and gold were tested for corrosion resistance in molten KH2PO4 (or KH2PO4-K2H2P2O7) as a promising electrolyte for the intermediate-temperature (200–400°C) water electrolysis. Pt, Ta, Nb, Ti, Inconel®625, and Ni demonstrated high corrosion resistance. Au and the rest of the tested materials were not corrosion resistant. It means that Ni, Ti and Inconel®625 may be used as relatively cheap construction materials for the intermediate-temperature water electrolyzer.

KW - Intermediate-temperature electrolysis

KW - Bipolar plate

KW - Nickel stability

KW - Corrosion

KW - Oxygen evolution

KW - Molten salts

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DO - 10.5772/64003

M3 - Book chapter

SN - 978-953-51-2507-5

SP - 89

EP - 100

BT - High Temperature Corrosion

A2 - Ahmad, Zaki

PB - InTechOpen

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