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May 31, 2017The Journal of Physical Chemistry Letters

pH-Dependent Inversion of Hofmeister Trends in the Water Structure of the Electrical Double Layer

Emma L. DeWalt-Kerian Sun Kim Md. Shafiul Azam Hongbo Zeng Qingxia Liu Julianne M. Gibbs

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Abstract

), with an inversion in this series occurring at pH > 10. In addition, an inversion in SFG intensity trends also occurred at pH < 6, which was attributed to contributions from asymmetric cation hydration and EDL overcharging. The highly pH-dependent SIEs for silica/water have implications for EDL models that often assume pH-independent parameters.

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DeWalt-Kerian et al. (2017) studied this question.

synapsesocial.com/papers/6a006857ef8139f8ff7791a5 https://doi.org/10.1021/acs.jpclett.7b01005

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