Published July 2021 | Version v1
Journal article Metadata-only

Comparative study on corrosion behavior of Cu and Sn under UV light illumination in chloride-containing borate buffer solution

Creators

  • 1. Key Research Base of State Administration of Cultural Heritage for Evaluation of Science and Technology Research in Cultural Relics Protection Field, Beijing University of Chemical Technology, Beijing, 100029 (China)
  • 2. Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029 (China)

Description

Highlights: • Corrosion behavior of tin under UV illumination was investigated for the first time. • Photo-inhibition of corrosion was observed on tin, while photo-enhanced pitting corrosion was found on copper. • The structure and stability of the oxide film appeared to be crucial in the corrosion of metals under irradiation. • Photostability of the oxide film was found to decrease in the presence of chloride anions. Corrosion behaviors of copper and tin in chloride-containing borate buffer solutions (pH 8.4) were investigated through electrochemical and spectroscopic techniques in the presence and absence of UV illumination. Concerning effects of UV light on the corrosion processes, in a borate buffer solution containing 0.025 M NaCl, photo-enhanced pitting corrosion was observed on copper while photo-induced passivation was found on tin. The effect of UV illumination on corrosion was dependent on the interaction between the photo-generated carriers and the metal oxides, as well as the photostability of the oxide film. Chloride anions can decrease the photostability of the oxide film.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.corsci.2021.109471

Additional details

Identifiers

DOI
10.1016/j.corsci.2021.109471;
PII
S0010938X21002377;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
186
Journal Page Range
vp.
ISSN
0010-938X
CODEN
CRRSAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54016375
Subject category
S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ANIONS; BORATES; COPPER; ELECTROCHEMISTRY; ILLUMINANCE; IRRADIATION; OXIDES; PASSIVATION; PH VALUE; PITTING CORROSION; SEMICONDUCTOR MATERIALS; SODIUM CHLORIDES; THIN FILMS; TIN; ULTRAVIOLET RADIATION
Descriptors DEC
ALKALI METAL COMPOUNDS; BORON COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL REACTIONS; CHEMISTRY; CHLORIDES; CHLORINE COMPOUNDS; CORROSION; ELECTROMAGNETIC RADIATION; ELEMENTS; FILMS; HALIDES; HALOGEN COMPOUNDS; IONS; MATERIALS; METALS; OXYGEN COMPOUNDS; RADIATIONS; SODIUM COMPOUNDS; SODIUM HALIDES; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2021 Elsevier Ltd. All rights reserved.