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Research Article

Natural Nanofibrous Cellulose-Derived Solid Acid Catalysts

Table 1

The structure and surface properties of BC-CNFs-SO3H SACs and reference catalysts.

CatalystSpecific surface area (m2 g−1)Pore volume
(cm3 g−1)
Total acid density
(mmol g−1
SO3H density
(mmol g−1

BC-CNFs-400-SO3H4960.411.840.85
BC-CNFs-600-SO3H6860.761.260.43
BC-CNFs-800-SO3H8370.921.080.32
BC-CNFs-400-SO3H∗1920.423.882.42
BC-CNFs-4005120.380.58/
H2SO4//20.4/
Amberlyst-15500.2-0.44.504.36
Nafion R-1100<1/1.131.02
H-ZSM-5462~0.210.62/
H-Mordenite387~0.200.44/
Niobic acid1240.020.41/

Total acid density is determined by acid-base back titration; SO3H densities are estimated from the S content in sample compositions determined by elemental analysis.