Methanol and Ethanol Electrooxidation on PtRu and PtNiCu as Studied by High-Resolution In Situ Electrochemical NMR Spectroscopy with Interdigitated Electrodes

Spectroelectrochemistry, the future of visualizing electrode processes by hyphenating electrochemistry with spectroscopic techniques

“…In more recent publications, Sorte et al constructed an NMR-SEC cell with an interdigitated Au WE and CE (IGEs) in the NMR detection area and a Ag/AgCl pseudo-RE above it. 269,270 The design is shown schematically and as a photograph in Fig. 16.…”

“…Sorte et al successfully used this setup for in situ NMR-SEC measurements of the electrochemistry of ferrocene ( 1 H) 269 and of the oxidation of methanol and ethanol ( 13 C). 269,270 Different modified tin oxide glass based coatings were explored by Zhang et al, Wang et al and Cao et al [271][272][273][274] Zhang et al created a nano-polyaniline film (PAn) via electropolymerization on an indium tin oxide (ITO) electrode. 271 The schematic and a photograph are shown in Fig.…”

Quantitative in situ13C NMR studies of the electro-catalytic oxidation of ethanol

“…These experiments made use of interdigitated gold or epoxy-sealed, capillaryhoused electrodes, which were inserted into a standard tube for solution NMR measurements. 13,[16][17][18] Metallic components of the electrochemical cell can be decreased by using carbon paper as electrode substrate. Such electrodes can be placed inside the coil, resulting in reduced line broadening in comparison to pure platinum or gold electrodes.…”

Surface enhanced vibrational spectroscopy : implementations in lab-on-a-chip

“…In more recent publications, Sorte et al constructed an NMR-SEC cell with an interdigitated Au WE and CE (IGEs) in the NMR detection area and a Ag/AgCl pseudo-RE above it 267,268 . The design is shown schematically and as a photograph fig.…”

“…16 The IGEs were printed on polyimide films and could be brought into close proximity inside a 5 mm NMR tube to promote better electrochemical performance. Sorte et al successfully used this setup for in-situ NMR-SEC measurements of the electrochemistry of ferrocene ( 1 H) 268 and of the oxidation of methanol and ethanol ( 13 C) 267,268 . Reprinted from the original work by Zhang et al 272 , Copyright 2018, with permission from Elsevier.…”