10.1021/jp2015512.s001
Niki Baccile
Niki
Baccile
Guillaume Laurent
Guillaume
Laurent
Cristina Coelho
Cristina
Coelho
Florence Babonneau
Florence
Babonneau
Li Zhao
Li
Zhao
Maria-Magdalena Titirici
Maria-Magdalena
Titirici
Structural Insights on Nitrogen-Containing Hydrothermal Carbon Using Solid-State Magic Angle Spinning <sup>13</sup>C and <sup>15</sup>N Nuclear Magnetic Resonance
American Chemical Society
2011
15 N Nuclear
carbohydrate
material
type
13 C
hydrothermal
NMR
model system
contrast
2011-05-12 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Structural_Insights_on_Nitrogen_Containing_Hydrothermal_Carbon_Using_Solid_State_Magic_Angle_Spinning_sup_13_sup_C_and_sup_15_sup_N_Nuclear_Magnetic_Resonance/2653675
Here, <sup>13</sup>C and <sup>15</sup>N solid state NMR is used as the main and most effective characterization technique on nitrogen-containing hydrothermal carbons obtained from glucose and glycine. This study represents a model system for other types of nitrogen-containing hydrothermal carbons, which were shown to have interesting energy-storage properties (Zhao et al. Adv. Mater. 2010, 22, 5202). These materials are obtained either from N-containing carbohydrates or from pure carbohydrates in the presence of natural amino-containing compounds such as proteins or aminoacids. In contrast to what is generally known for this model system, high molecular weight heterogeneous polymers (e.g., melanoidins) that are formed when sugars and amino acids combine through the Maillard reaction, we found an extended nitrogen-containing aromatic network, which is chemically bound to a polyfuran network known to be one of the main components of the biomass-derived hydrothermal carbons. In contrast to the hydrothermal carbons obtained from pure carbohydrates, these types of N-containing materials have an increased level of aromatic character already present at 180 °C, after the hydrothermal treatment.