Premium
Polysaccharide‐Derived Carbons for Polar Analyte Separations
Author(s) -
White Robin J.,
Antonio Carla,
Budarin Vitaly L.,
Bergström Ed,
ThomasOates Jane,
Clark James H.
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201000169
Subject(s) - mesoporous material , materials science , carbonization , chemical engineering , amorphous solid , specific surface area , polymer , thermal decomposition , nanotechnology , organic chemistry , catalysis , composite material , chemistry , scanning electron microscope , engineering
Highly mesoporous (Brunauer–Emmett–Teller surface area, S BET > 200 m 2 g −1 ; mesopore volume > 1 cm 3 g −1 ) carbonaceous materials are prepared in a truly sustainable manner, from the naturally occurring polysaccharide alginic acid. This approach yields large mesoporous materials (pore diameter > 14 nm) significantly without the use of a template or carbonization catalyst. The direct thermal decomposition of mesoporous forms of the acidic polysaccharide allows for an extremely flexible material preparation strategy. Materials can be prepared at any desired carbonization temperature (e.g., 200–1000 °C), possessing similar textural properties, but progressively presenting more uniform surface functionality through this temperature range, from more oxygenated surfaces at low temperatures to increasingly aromatic/graphitic‐like surfaces. The high‐temperature material (i.e., 1000 °C), while predominantly amorphous, presents some short range (turbostratic) ordering, providing sufficiently polarizable surfaces on which to perform challenging liquid phase separations of polar sugar analytes.