Fig. 6. Voltammetric scan rate study of 1 mM RuHex/0.1 M KCl using a 6 line 6PLD-2D-hBN electrode used for 4 (A) and 28 (B) consecutive voltammetric scans to test their electrochemical stability towards multiple sequential potential scanning. Optical image and Raman mapping characterisation of the PLD-2D-hBN after used in (C). Raman spectra is included, showing areas where 2D-hBN is present and its typical Raman peak (red and green colour) and some rips where there is no 2D-hBN peak (blue colour) (scan rate: 50 mV s⁻¹vs. Ag/AgCl).