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Journal article
Measuring the Surface Energy of Nanosheets by Emulsion Inversion
Journal of physical chemistry. C, v 128(40), pp 17073-17080
01 Oct 2024
PMID: 39411577
Abstract
Solution-processed nanomaterials can be assembled by a range of interfacial techniques, including as stabilizers in Pickering emulsions. Two-dimensional (2D) materials present a promising route toward nanosheet-stabilized emulsions for functional segregated networks, while also facilitating surface energy studies. Here, we demonstrate emulsions stabilized by the 2D materials including the transition metal carbide MXene, titanium carbide (Ti3C2Tx), and develop an approach for in situ measurement of nanosheet surface energy based on emulsion inversion. This approach is applied to determine the influence of pH and nanosheet size on surface energy for MXene, graphene oxide, pristine graphene, and molybdenum disulfide. The surface energy values of hydrophilic Ti3C2Tx and graphene oxide decrease significantly upon protonation of usually dissociated functional groups, facilitating emulsion stabilization. Similarly, pristine graphene and molybdenum disulfide increase in surface energy when their surface functional groups are deprotonated under basic conditions. In addition, the surface energies of these pristine materials are correlated with nanosheet size, which allows for the calculation of the basal plane and edge surface energies of pristine nanosheets. This understanding of surface energies and control of emulsion inversion will allow design of emulsion-templated structures and surface energy studies of a wide range of solution-processable nanomaterials.
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Details
- Title
- Measuring the Surface Energy of Nanosheets by Emulsion Inversion
- Creators
- Anne Sehnal - University of SussexSean P. Ogilvie (Corresponding Author) - University of SussexKeiran Clifford - University of SussexHannah J. Wood - University of SussexAline Amorim Graf - University of SussexFrank Lee - University of SussexManoj Tripathi - University of SussexPeter J. Lynch - University of SussexMatthew J. Large - University of SussexShayan Seyedin - Newcastle UniversityKathleen Maleski - Drexel University, A.J. Drexel Nanomaterials InstituteYury Gogotsi - Drexel University, A.J. Drexel Nanomaterials InstituteAlan B. Dalton (Corresponding Author) - University of Sussex
- Publication Details
- Journal of physical chemistry. C, v 128(40), pp 17073-17080
- Publisher
- AMER CHEMICAL SOC; WASHINGTON
- Number of pages
- 8
- Grant note
- US National Science Foundation: DMR-2041050
The authors would like to acknowledge financial support from the University of Sussex strategic development fund. Y.G. acknowledges funding from the US National Science Foundation grant DMR-2041050 for MXene synthesis.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001326746700001
- Scopus ID
- 2-s2.0-85205927042
- Other Identifier
- 991021906610304721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology