Collaboration between CA2DM and NUS Chemistry unveils new application of 2D electrolytes in electrochemistry
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The teams of Professors Guillermo C. Bazan, Konstantin Novoselov and Antonio H. Castro Neto discovered that the association between a negatively charged polyelectrolyte (1D) and a positively charged 2D electrolyte can produce a conjugated structure with enhanced pseudocapacitive properties.
Differently from their seminal paper on 2D electrolytes (Advanced Materials 2021, 25, 2100442) where they reversibly changed a 2D electrolyte from a flat sheet (2D) to a rolled-up scroll (1D), in this work a 1D/2D association was used, allowing the improvement in cycling stability, specific capacitance, and working voltage window in a well-known conjugated polyelectrolyte (CPE-K). The opposite charges between polyelectrolyte and 2D electrolyte produce non-covalent cross-links that form a mechanically robust network.
Their exciting discovery, published in Advanced Electronic Materials (https://doi.org/10.1002/aelm.202100942), not only expands the use of 2D electrolytes to electrochemistry, but also unveils a new and simple method to obtain pseudocapacitors with enhanced properties.