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Reference: Poon, J, Batchelor-McAuley, C, Tschulik, K et al., (2015). Single graphene nanoplatelets: capacitance, potential of zero charge and diffusion coefficient. CHEMICAL SCIENCE, 6 (5), 2869-2876.Citable link to this page:

 

Single graphene nanoplatelets: capacitance, potential of zero charge and diffusion coefficient

Abstract: © The Royal Society of Chemistry 2015. Nano-impact chronoamperometric experiments are a powerful technique for simultaneously probing both the potential of zero charge (PZC) and the diffusion coefficient (D0) of graphene nanoplatelets (GNPs). The method provides an efficient general approach to material characterisation. Using nano-impact experiments, capacitative impacts can be seen for graphene nanoplatelets of 15 μm width and 6-8 nm thickness. The current transient features seen allow the determination of the PZC of the graphene nanoplatelet in PBS buffer as -0.14 ± 0.03 V (vs. saturated calomel electrode). The diffusion coefficient in the same aqueous medium, isotonic with many biological conditions, for the graphene nanoplatelets is experimentally found to be 2 ± 0.8 × 10-13 m2 s-1. This quick characterisation technique may significantly assist the application of graphene nanoplatelets, or similar nano-materials, in electronic, sensor, and clinical medicinal technologies.

Peer Review status:Peer ReviewedPublication status:Published Funder: European Research Council   Notes:This article is licensed under a Creative Commons Attribution 3.0 Unported Licence

Bibliographic Details

Journal: CHEMICAL SCIENCEsee more from them

Issue Date: 2015

pages:2869-2876Identifiers

Urn: uuid:605b63e9-2339-4c18-abe6-b633492d29d9

Source identifier: 519640

Eissn: 2041-6539

Doi: https://doi.org/10.1039/c5sc00623f

Issn: 2041-6520 Item Description

Type: Journal article; Tiny URL: pubs:519640

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Author: Poon, J - institutionUniversity of Oxford Oxford, MPLS, Chemistry, Physical and Theoretical Chem - - - Batchelor-McAuley, C - ins

Source: https://ora.ox.ac.uk/objects/uuid:605b63e9-2339-4c18-abe6-b633492d29d9



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