Table 3.

The amounts of each functional group obtained from the deconvolutions of the TPD spectra.

Sample	Phenol/ether (mmol/g)	Quinone/carbonyl and phosphate (mmol/g)	Carboxylic (mmol/g)	Lactone (mmol/g)	Anhydride (mmol/g)
AC(350)	1.57	2.58	0.41	0.05	1.01
AC(400)	0.46	2.37	0.18	0.02	0.65
AC(450)	0.20	2.17	0.08	0.04	0.34
AC(500)	0.21	2.02	0.04	0.05	0.16
AC(550)	0.19	3.31	0.04	0.12	0.14