Additions and corrections

Probing double layer structures of Au (111)-BMIPF6 ionic liquid interfaces from potential-dependent AFM force curves

Xiao Zhang, Yun-Xin Zhong, Jia-Wei Yan, Yu-Zhuan Su, Meng Zhang and Bing-Wei Mao

Chem. Commun., 2012, 48, 852-584 (DOI: 10.1039/C1CC15463J) Amendment published 16 February 2012

In our published article, the statement "Regretfully, neither were force curves given, nor systematic investigations of potential dependence of the layering behavior performed, in the related work." was erroneous. We regarded only the original force vs. piezo displacement curves, not the converted force vs. separation profiles, as the force curves, which is incorrect. We just realized that in fact the original force vs. piezo displacement curves and the converted force vs. separation profiles are two main types of AFM force representations. The articles by Atkin and coworkers did provide the converted force vs. separation profiles, which should be regarded as a type of force curves. On the other hand, in the article by Hayes et al. (J. Phys. Chem. C, 2011, 115, 6855), force measurements of two ionic liquids were taken, each at potentials of -2 V, -1 V, OCP, +1 V and +2 V. It is our opinion that these potentials are too widely spaced, and details concerning the potential-dependent changes in ionic liquid structure may have been missed. Therefore, more systematic works are necessary for a more comprehensive understanding about the ionic liquid structure at electrified interfaces.

In addition, the BMIPF6 ionic liquid employed in the present work was purchased from IOLITEC (Germany, 99%), which was dried in a vacuum at 70 °C for several hours to remove the absorbed water prior to each experiment.

The fifth reference of the complex Reference 1 should read:
F. Endres, O. Höfft, N. Borisenko, L. H. Gasparotto, A. Prowald, R. Al-Salman, T. Carstens, R. Atkin, A. Bund and S. Z. E. Abedin, Phys. Chem. Chem. Phys., 2010, 12, 1724.

Reference 10 should read:
10. M. Mezger, H. Schröder, H. Reichert, S. Schramm, J. S. Okasinski, S. Schöder, V. Honkimäki, M. Deutsch, B. M. Ocko, J. Ralston, M. Rohwerder, M. Stratmann and H. Dosch, Science, 2008, 322, 424.

The Royal Society of Chemistry apologises for this error and any consequent inconvenience to authors and readers.

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