A solvent-free method for the synthesis of nitrogen-doped carbon sheets derived from glucose was developed using solid hydrazine that serves as both nitrogen source and pore-forming agent. Three different N-doped carbon sheets were obtained from annealing the reaction mixture of glucose and solid hydrazine at 500, 700, and 900 oC. The resulting N-doped carbon sheets are denoted as GHC-500, GHC-700, and GHC-900, respectively. The N-doped carbon sheets were thoroughly characterized by elemental analysis, N2 adsorption, powder X-ray diffraction, transmission and scanning electron microscopy, IR spectroscopy, and Brunauer-Emmett-Teller (BET) measurement. The adsorption of the N-doped carbon sheets in CO2 were examined in the low-pressure range between 0.01 - 1 bar at 25 oC using the BET system. All the N-doped carbon sheets have superior CO2 adsorption capability. A maximum CO2 capacity up to 2.23 mmol/g at 1 bar was achieved on the GHC-700. The sorbent exhibited excellent stability over repetitive adsorption-desorption cycling and no loss of sorption capacity was observed after several cycles under the testing conditions. Details on the fabrication of the N-doped carbon sheets and their properties will be presented.

Solvent-free synthesis of nitrogen-doped carbon sheets derived from glucose for CO2 capture

256th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.