Yang, Kou, Hu, Zhitao, Li, Xiaolai, Nikolaev, Konstantin, Hong, Gan Kai, Mamchik, Natalia, Erofeev, Ivan, Mirsaidov, Utkur M, Castro Neto, Antonio H, Blackwood, Daniel J et al (show 4 more authors)
(2023)
Graphene oxide-polyamine preprogrammable nanoreactors with sensing capability for corrosion protection of materials.
Proceedings of the National Academy of Sciences of the United States of America, 120 (35).
e2307618120-e2307618120.
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Abstract
Corrosion is one of the major issues for sustainable manufacturing globally. The annual global cost of corrosion is US$2.5 trillion (approximately 3.4% of the world's GDP). The traditional ways of corrosion protection (such as barriers or inhibiting) are either not very effective (in the case of barrier protection) or excessively expensive (inhibiting). Here, we demonstrate a concept of nanoreactors, which are able to controllably release or adsorb protons or hydroxides directly on corrosion sites, hence, selectively regulating the corrosion reactions. A single nanoreactor comprises a nanocompartment wrapped around by a pH-sensing membrane represented, respectively, by a halloysite nanotube and a graphene oxide/polyamine envelope. A nanoreactor response is determined by the change of a signaling pH on a given corrosion site. The nanoreactors are self-assembled and suitable for mass-line production. The concept creates sustainable technology for developing smart anticorrosion coatings, which are nontoxic, selective, and inexpensive.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | corrosion, graphene, halloysite, nanoreactor |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 10 Jan 2024 10:24 |
| Last Modified: | 21 Feb 2024 02:30 |
| DOI: | 10.1073/pnas.2307618120 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3177277 |
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