Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution

Applicability and limitations of using online non-destructive ultraviolet–visible (UV–vis) spectrophotometer to monitor the dissolution of an Al–Zn–Mg–Cu alloy in HCl-containing solution were studied. Inductively coupled plasma atomic emission spectrometry results indicate that the spectrum absorban...

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Autores principales: Sun, Qingqing, Yang, Yang, Wang, Shuai, Liang, Panyi, Lin, Bin, Li, Huabing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735366/
https://www.ncbi.nlm.nih.gov/pubmed/33391779
http://dx.doi.org/10.1098/rsos.200461
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author Sun, Qingqing
Yang, Yang
Wang, Shuai
Liang, Panyi
Lin, Bin
Li, Huabing
author_facet Sun, Qingqing
Yang, Yang
Wang, Shuai
Liang, Panyi
Lin, Bin
Li, Huabing
author_sort Sun, Qingqing
collection PubMed
description Applicability and limitations of using online non-destructive ultraviolet–visible (UV–vis) spectrophotometer to monitor the dissolution of an Al–Zn–Mg–Cu alloy in HCl-containing solution were studied. Inductively coupled plasma atomic emission spectrometry results indicate that the spectrum absorbance at 252 nm is mainly attributed to Cu-containing complexes. Surprisingly, an hours-long ‘induction' period was observed from UV–vis results. This is not a real indicator of induction for Al dissolution as revealed by electrochemical impedance spectrum, actually it reflects the alloy's galvanic corrosion nature that Cu species are released after Al, Zn and Mg species.
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spelling pubmed-77353662020-12-31 Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution Sun, Qingqing Yang, Yang Wang, Shuai Liang, Panyi Lin, Bin Li, Huabing R Soc Open Sci Chemistry Applicability and limitations of using online non-destructive ultraviolet–visible (UV–vis) spectrophotometer to monitor the dissolution of an Al–Zn–Mg–Cu alloy in HCl-containing solution were studied. Inductively coupled plasma atomic emission spectrometry results indicate that the spectrum absorbance at 252 nm is mainly attributed to Cu-containing complexes. Surprisingly, an hours-long ‘induction' period was observed from UV–vis results. This is not a real indicator of induction for Al dissolution as revealed by electrochemical impedance spectrum, actually it reflects the alloy's galvanic corrosion nature that Cu species are released after Al, Zn and Mg species. The Royal Society 2020-11-04 /pmc/articles/PMC7735366/ /pubmed/33391779 http://dx.doi.org/10.1098/rsos.200461 Text en © 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Chemistry
Sun, Qingqing
Yang, Yang
Wang, Shuai
Liang, Panyi
Lin, Bin
Li, Huabing
Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title_full Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title_fullStr Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title_full_unstemmed Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title_short Using real-time UV–visible spectrophotometer to assess an Al–Zn–Mg–Cu alloy's dissolution in acidic solution
title_sort using real-time uv–visible spectrophotometer to assess an al–zn–mg–cu alloy's dissolution in acidic solution
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735366/
https://www.ncbi.nlm.nih.gov/pubmed/33391779
http://dx.doi.org/10.1098/rsos.200461
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