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Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects

Cc-BY

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Bibliographic Details
Main Authors: Boyatzis, Stamatis C., Fragkos-Livanios, Leonidas
Format: Book
Language:English
Published: Springer 2023
Subjects:
Infrared spectroscopy
Online Access:https://link.springer.com/article/10.1186/s40494-023-01023-1
https://dlib.phenikaa-uni.edu.vn/handle/PNK/9066
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spelling oai:localhost:PNK-90662023-09-18T04:17:44Z Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects Boyatzis, Stamatis C. Fragkos-Livanios, Leonidas Infrared spectroscopy Cc-BY The reactivities of various fatty monoacids and diacids on copper metal-containing surfaces were investigated through reflection–absorption infrared spectroscopy. The formation of copper carboxylates is detected on pure copper surfaces, while copper and zinc carboxylates are simultaneously formed on brass surfaces. Following the decrease of acid carbonyl and the formation of carboxylate infrared bands, it is shown that fatty monoacids C8 and C10 react with clean/polished copper and its zinc alloy within 2–4 h, while those with chains > C12 react within days. At the end of the processes, only the corresponding metal carboxylates are detected in all cases. An explanation for the above is offered on a molecular mobility and acidity basis, where the lower monoacids (liquids in room temperature), also having lower pKa values, favor higher reaction rates. Furthermore, it is argued that longer-chain fatty monoacids, when deposited from their solutions, allow for favorable orientation resulting in self-assembled monolayer-type molecular packing on the copper surface, which may additionally rationalize the slower reaction. 2023-09-18T04:17:43Z 2023-09-18T04:17:43Z 2023 Book Book chapter https://link.springer.com/article/10.1186/s40494-023-01023-1 https://dlib.phenikaa-uni.edu.vn/handle/PNK/9066 en application/pdf Springer
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Infrared spectroscopy
spellingShingle Infrared spectroscopy
Boyatzis, Stamatis C.
Fragkos-Livanios, Leonidas
Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
description Cc-BY
format Book
author Boyatzis, Stamatis C.
Fragkos-Livanios, Leonidas
author_facet Boyatzis, Stamatis C.
Fragkos-Livanios, Leonidas
author_sort Boyatzis, Stamatis C.
title Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
title_short Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
title_full Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
title_fullStr Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
title_full_unstemmed Infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
title_sort infrared spectroscopy reveals the reactivity of fatty acids on copper surfaces and its implications for cultural heritage objects
publisher Springer
publishDate 2023
url https://link.springer.com/article/10.1186/s40494-023-01023-1
https://dlib.phenikaa-uni.edu.vn/handle/PNK/9066
_version_ 1779307151803547648
score 8.881002

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