Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
γ-radiation induced corrosion of copper in bentonite-water systems under anaerobic conditions
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
Show others and affiliations
2018 (English)In: Radiation Physics and Chemistry, ISSN 0969-806X, E-ISSN 1879-0895, Vol. 144, p. 8-12Article in journal (Refereed) Published
Abstract [en]

In this work we have experimentally studied the impact of bentonite clay on the process of radiation-induced copper corrosion in anoxic water. The motivation for this is to further develop our understanding of radiation-driven processes occurring in deep geological repositories for spent nuclear fuel where copper canisters containing the spent nuclear fuel will be embedded in compacted bentonite. Experiments on radiation-induced corrosion in the presence and absence of bentonite were performed along with experiments elucidating the impact irradiation on the Cu2+ adsorption capacity of bentonite. The experiments presented in this work show that the presence of bentonite clay has no or very little effect on the magnitude of radiation-induced corrosion of copper in anoxic aqueous systems. The absence of a protective effect similar to that observed for radiation-induced dissolution of UO2 is attributed to differences in the corrosion mechanism. This provides further support for the previously proposed mechanism where the hydroxyl radical is the key radiolytic oxidant responsible for the corrosion of copper. The radiation effect on the bentonite sorption capacity of Cu2+ (reduced capacity) is in line with what has previously been reported for other cations. The reduced cation sorption capacity is partly attributed to a loss of Al-OH sites upon irradiation.

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 144, p. 8-12
Keyword [en]
Aluminum compounds, Anoxic sediments, Copper, Copper corrosion, Corrosion, Irradiation, Positive ions, Radiation, Adsorption capacities, Anaerobic conditions, Compacted bentonite, Corrosion mechanisms, Deep geological repository, Protective effects, Sorption capacities, Spent nuclear fuels, Bentonite, hydroxyl radical, nuclear fuel, adsorption kinetics, anaerobic capacity, Article, embedding, environmental impact assessment, gamma radiation, water supply
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-223137DOI: 10.1016/j.radphyschem.2017.11.004ISI: 000423646400002Scopus ID: 2-s2.0-85034661878OAI: oai:DiVA.org:kth-223137DiVA, id: diva2:1193214
Funder
Swedish Nuclear Fuel and Waste Management Company, SKB
Note

Export Date: 13 February 2018; Article; CODEN: RPCHD; Correspondence Address: Jonsson, M.; School of Chemical Science and Engineering, Applied Physical Chemistry, KTH Royal Institute of TechnologySweden; email: matsj@kth.se; Funding details: SKB, Svensk Kärnbränslehantering. QC 20180326

Available from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-03-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Wold, SusannaJonsson, Mats

Search in DiVA

By author/editor
Norrfors, K. KarinBjörkbacka, ÅsaKessler, AmandaWold, SusannaJonsson, Mats
By organisation
Applied Physical Chemistry
In the same journal
Radiation Physics and Chemistry
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 2 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf