Fig. 5: Catalytic stability and structural evolution of CoNi0.25P catalyst.
From: Electrocatalytic upcycling of polyethylene terephthalate to commodity chemicals and H2 fuel
a Chronoamperometric stability test for EG oxidation at 1.7 V vs RHE for 13 cycles and 1.5 V vs RHE for 11 cycles. The electrolyte was refreshed every 3 h. b–d TEM images and corresponding SAED patterns of CoNi0.25P after HER (b), OER (c), and EG oxidation (d) reaction for 1 h. e Raman spectra, f Co K-edge XANES profiles, g Co K-edge EXAFS spectra, and h Wavelet transforms for Co K-edge EXAFS spectra for virgin and spent CoNi0.25P. i Schematic illustration of the structural evolution of CoNi0.25P catalyst under reaction conditions.
