. 2015 Dec 9;5:17538. doi: 10.1038/srep17538

Table 3. Activity of catalysts synthesized under different conditions for ball-milled cellulose hydrolysis.

Catalyst number	N (%)	C (%)	H (%)	S (%)	Acid density by S content (mmol g⁻¹)	TRS yield (%)^a	Glucose yield (%)^a	Glucose selectivity (%)^a
1	0.061	55.50	2.00	1.15	0.36	17.1 ± 1.4	9.1 ± 2.4	39.6 ± 2.4
2	0.052	58.00	1.82	1.02	0.32	17.7 ± 1.6	10.2 ± 0.4	41.6 ± 2.8
3	0.058	53.87	1.99	1.11	0.35	17.1 ± 0.5	8.0 ± 2.1	37.5 ± 1.6
4	0.061	55.50	2.00	1.15	0.36	17.2 ± 0.5	9.6 ± 2.3	41.8 ± 2.8
5	0.066	56.53	2.04	1.08	0.34	17.5 ± 1.7	9.2 ± 1.9	39.5 ± 1.5
6	0.039	60.91	2.01	0.91	0.28	16.9 ± 1.9	8.9 ± 0.4	40.5 ± 2.5
7	0.063	59.98	2.17	1.00	0.31	14.8 ± 2.4	7.2 ± 0.7	36.2 ± 0.3
8	0.060	61.79	2.10	0.97	0.30	17.7 ± 3.1	8.1 ± 0.8	36.8 ± 1.9
9	0.060	61.62	2.13	0.95	0.30	13.5 ± 2.9	6.1 ± 1.3	34.3 ± 0.8
10	0.034	53.00	2.10	1.28	0.40	18.5 ± 1.5	10.3 ± 2.1	41.4 ± 3.2

^aConditions for hydrolysis reactions: ball-milled cellulose 0.027 g, catalyst 0.15 g, water 15 mL, 180 °C for 3 h. Two repetitions were done for each run.