“…The weak peak at 1103 cm −1 may be due to the C–C skeleton vibration. 33 The peaks at 875 cm −1 and 536 cm −1 were ascribed to the bending vibrations of the C–H and C–C bonds of the benzene rings. 33 The active groups 34 such as sulfur and carbonyl groups help to increase the number of electrochemical active sites of carbon paper and improve the electrochemical sensing performance.…”
“…The weak peak at 1103 cm −1 may be due to the C–C skeleton vibration. 33 The peaks at 875 cm −1 and 536 cm −1 were ascribed to the bending vibrations of the C–H and C–C bonds of the benzene rings. 33 The active groups 34 such as sulfur and carbonyl groups help to increase the number of electrochemical active sites of carbon paper and improve the electrochemical sensing performance.…”
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