The electrochemical behaviour of butyltrimethylammonium bis(trifluoromethylsulfonyl)imide at negatively polarised aluminium electrode studied by in situ soft X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy and cyclic voltammetry techniques

Abstract The in situ X-ray photoelectron spectroscopy data indicate that butyltrimethylammonium bis(trifluoromethylsulfonyl)imide (N4111(TFSI)) adsorbs strongly within the potential range −3.25 V < E −2.25 and specifically at (vs. Ag-QRE) Al electrode. Strong adsorption of intermediates N4111(TFSI) electrochemical decomposition was observed impedance cyclic voltammetry measurements. At −4.25 Ag-QRE), very intensive reduction took place electrode giving gaseous products. In from − 2.25 to 0.00 non-specific exists et al. surface.