@article{discovery1476945,
           pages = {28--34},
           title = {The influence of acidic edge groups on the electrochemical performance of graphene nanoflakes},
            year = {2015},
         journal = {Journal of Electroanalytcal Chemistry},
           month = {September},
          volume = {753},
            note = {{\copyright} 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).},
        keywords = {Graphene, [Fe(CN)(6)](3-/4-), Oxygen-containing functionalities, pH, Isotope effect, Cyclic voltammetry, Spectroelectrochemistry, ATR-FTIR spectroscopy, Modified electrodes},
            issn = {1572-6657},
          author = {Lounasvuori, MM and Rosillo-Lopez, M and Salzmann, CG and Caruana, DJ and Holt, KB},
        abstract = {Graphene nanoflakes (GNF) with lateral dimensions of ca. 30 nm and edge-terminated with carboxylic acid functionalities have been characterised and the influence of acidic functionalities on the [Fe(CN)6]3?/4? redox couple studied using cyclic voltammetry and spectroelectrochemical methods. The presence of the COOH-terminated GNF in solution as well as immobilised onto an electrode surface was found to inhibit the redox reaction, supporting the conclusion that GNF promote instability of [Fe(CN)6]3?/4? in solution. The redox reaction was also much less influenced by the presence of GNF in D2O, highlighting the role played by readily available protons in destabilising the [Fe(CN)6]3?/4? redox couple. In the presence of GNF in solution, an additional, very intense cyanide stretch IR band was observed that was attributed to the formation of a new, non-soluble species. When D2O was used as the solvent, the IR spectrum showed no evidence of a new cyano species.},
             url = {http://dx.doi.org/10.1016/j.jelechem.2015.05.010}
}