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Carboxylation and Decarboxylation of Aluminum Oxide Nanoparticles Using Bifunctional Carboxylic Acids and Octylamine
Joint Authors
Barron, Andrew R.
Alexander, Shirin
Gomez, Virginia
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The carboxylation of alumina nanoparticles (NPs), with bifunctional carboxylic acids, provides molecular anchors that are used for building more complexed structures via either physisorption or chemisorption.
Colloidal suspensions of the NPs may be prepared by covalently bonding a series of carboxylic acids with secondary functional groups (HO2C-R-X) to the surface of the NPs: lysine (X = NH2), p-hydroxybenzoic acid (X = OH), fumaric acid (X = CO2H), and 4-formylbenzoic acid (X = C(O)H).
Subsequent reaction with octylamine at either 25°C or 70°C was investigated.
Fourier transform IR-attenuated reflectance spectroscopy (FTIR-ATR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) along with energy dispersive X-ray (EDX) analysis were used to characterize the bifunctionalized monolayers and/or multilayer corona surrounding the alumina NPs and investigate the reaction mechanism of octylamine with the functional groups (X) of the NPs.
Except for the fumaric functionalized NPs, addition of octylamine to the functionalized NPs leads to removal of excess carboxylic acid corona from the surface via an amide formation.
The extent of the multilayer is dependent on the strength of the acid⋯acid interaction.
American Psychological Association (APA)
Alexander, Shirin& Gomez, Virginia& Barron, Andrew R.. 2016. Carboxylation and Decarboxylation of Aluminum Oxide Nanoparticles Using Bifunctional Carboxylic Acids and Octylamine. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109390
Modern Language Association (MLA)
Alexander, Shirin…[et al.]. Carboxylation and Decarboxylation of Aluminum Oxide Nanoparticles Using Bifunctional Carboxylic Acids and Octylamine. Journal of Nanomaterials No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1109390
American Medical Association (AMA)
Alexander, Shirin& Gomez, Virginia& Barron, Andrew R.. Carboxylation and Decarboxylation of Aluminum Oxide Nanoparticles Using Bifunctional Carboxylic Acids and Octylamine. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109390
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109390