Hydrogen Evolution Kinetics in Corrosion of Copper, Iron and Zinc in Water

Seo, Masao; Hultquist, Gunnar; Gråsjö, L.; Sato, Noriko

doi:10.4028/www.scientific.net/kem.20-28.481

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Evidence and Analyses That Do Not Support Proposed Mechanism1

Evidence In Support Of Oxidation Of Copper By Water and Othe...1

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2011

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“…the potential of Cu wire during supposed H 2 generation is 150 mV more positive than the equilibrium potential for the H 2 O/H 2 reaction for an H 2 pressure of 1 atm14…”

Section: Evidence and Analyses That Do Not Support Proposed Mechanismmentioning

confidence: 84%

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Scientific basis for corrosion of copper in water and implications for canister lifetimes

King¹,

Lilja

2011

Corrosion Engineering, Science and Technology

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The Swedish Nuclear Fuel and Waste Management Company has developed a method for safely disposing spent nuclear fuel, which involves encapsulation of the waste in copper canisters and burying it deep in the stable crystalline rock of the Fenno-Scandian shield. The design life of the canisters in the so called KBS-3 design is in excess of 100 000 years. These long canister lifetimes are a consequence of a number of factors involving the properties of the material and the nature of the near field environment in the KBS-3 repository. One of these factors, namely the thermodynamic stability of copper in O 2 free water in the absence of sulphide, has been questioned. This paper critically reviews the evidence for and against the claim that water oxidises copper, and discusses the implications for canister lifetimes even if the proposed mechanism is correct. Even though the evidence presented in support of the proposed mechanism is not compelling, the Swedish Nuclear Fuel and Waste Management Company is actively engaged in ongoing research and development on the topic.

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“…the potential of Cu wire during supposed H 2 generation is 150 mV more positive than the equilibrium potential for the H 2 O/H 2 reaction for an H 2 pressure of 1 atm14…”

Section: Evidence and Analyses That Do Not Support Proposed Mechanismmentioning

confidence: 84%

“…oxygen does not support the corrosion of copper in water but is, instead, consumed by reaction with H atoms produced by the reduction of H 2 O 1 3 4 14 1,3,4,14,15…”

Section: Evidence In Support Of Oxidation Of Copper By Water and Othe...mentioning

confidence: 99%

Scientific basis for corrosion of copper in water and implications for canister lifetimes

King¹,

Lilja

2011

Corrosion Engineering, Science and Technology

View full text Add to dashboard Cite

show abstract

Hydrogen Evolution Kinetics in Corrosion of Copper, Iron and Zinc in Water

Cited by 1 publication

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Scientific basis for corrosion of copper in water and implications for canister lifetimes

Scientific basis for corrosion of copper in water and implications for canister lifetimes

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