The electroreduction of “C60” films in aqueous electrolyte does not lead to alkali metal ion insertion—Evidence for the involvement of adventitious poly-epoxidated C60 (C60On)

Reduced Graphene Oxide: Is it a promising catalyst for the electrochemistry of [UO2(CO3)3]4−/[UO2(CO3)3]5−?

“…On the other hand, the hydroxy group could not further be electrochemically reduced. However, the peroxyl, aldehyde and epoxyl groups could be electrochemically reduced at À0.7 V [40,41], À1.0 V [42] and À1.1 V (vs. Ag/AgCl) [43,44], respectively. Therefore, the oxygen functionalities of GNO can be electrochemically selectively reduced to prepare electrochemically reduced graphene oxide (ERGNO) modified GC electrode.…”

Unusual Inherent Electrochemistry of Graphene Oxides Prepared Using Permanganate Oxidants

“…The technique may be used to determine the presence of electrochemically reducible oxygen‐containing groups 23. In particular, only the peroxyl,25, 26 aldehyde,27 epoxyl,24, 28 and carbonyl29 moieties may be reduced electrochemically, at potentials of approximately −0.7, −1.0, −1.5, and −2.0 V versus Ag/AgCl, respectively 23–29. As seen from Figure 2, the reduction of GO‐ST starts at −0.7 V, with a peak potential at around −1.1 V, whereas the reduction of GO‐HO occurs at more negative potentials and peaks around −1.3 V. It should be emphasised that these reductions are only observed during the initial reductive sweep, and no peaks are recorded for all subsequent scans, indicating that all surface‐bound electroreducible functionalities are reduced during the first scan.…”

Excellent catalytic and electrochemical properties of the mesoporous MnO2 nanospheres/nanosheets

“…However, on adding H 2 O 2 to the 0.1 M NaOH solution, two obvious cathodic peaks appeared at −0.46 and −0.92 V at the˛-MnO 2 -modified GCE in the forward scan, and another cathodic peak appeared at −0.53 V in the reverse scan (curve c). The observed voltammetric behaviour of solution phase redox couples at mesoporous ␣-MnO 2 nanospheres/nanosheets modified electrode surfaces reflects the thin layer finite diffusion effects [29][30][31][32]. Moreover, when the unmodified GCE was measured in 0.1 M NaOH solution containing 1 mM of H 2 O 2 (curve b), the cathodic peak currents were low.…”