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. 2018 Apr 10;8(24):13370–13387. doi: 10.1039/c7ra13064c

Binding energies (BEs) of C 1s, O 1s, N 1s, Co 2p3/2 and Co 2p1/2 obtained from the XPS spectra of the PCMC beads before and after Co(ii) adsorption.

Elements PCMC bead BE (eV) Adsorbed PCMC bead BE (eV) Assignments
C 1s 284.9 284.9 C–C or C–H
286.4 286.4 C–O or C–O–C
287.8 287.8 C Created by potrace 1.16, written by Peter Selinger 2001-2019 O or O–C–O
288.6 288.6 COO−
O 1s 531.6 531.7 C Created by potrace 1.16, written by Peter Selinger 2001-2019 O or C–O–C
532.8 532.9 C–O or O–H
533.5 533.7 COO−
N 1s 399.4 399.5 C–NH2 or –NH–
400.0 400.3 C Created by potrace 1.16, written by Peter Selinger 2001-2019 N–C or O Created by potrace 1.16, written by Peter Selinger 2001-2019 C–N
402.5 402.7 C–N–C or C–NH3+
Co 2p3/2 — 781.6 Co(0) or Co(i)
— 785.4 Co(ii)
Co 2p1/2 — 797.3 Co(0) or Co(i)
— 802.2 Co(ii)