Fig. 9
From: Solid-state NMR at natural isotopic abundance for bioenergy applications
Analysis of thermal pretreatments using routine ssNMR. a Temperature-dependent structural changes of biochar derived from different sources. Panels adapted with permission of ref [112]. b Hydrolysis enhancement of treated sugarcane bagasse showing structural changes for improved saccharification. Panel adapted with permission of ref [113]. c Natural and pyrolyzed rice husk: CP-MAS (9.4 T) highlights structures below 500 °C, while DP-MAS (2.0 T) emphasizes features above 500 °C. Stars indicate spinning sidebands. Panels adapted with permission of ref [115]