TY - JOUR
T1 - Intercalation and stitching of graphite oxide with diaminoalkanes
AU - Herrera-Alonso, Margarita
AU - Abdala, Ahmed A.
AU - McAllister, Michael J.
AU - Aksay, Ilhan A.
AU - Prud'homme, Robert K.
PY - 2007/10/9
Y1 - 2007/10/9
N2 - The intercalation reaction of graphite oxide with diaminoalkanes, with the general formula H 2N(CH 2) nNH 2 (n = 4-10), was studied as a method for synthesizing pillared graphite with tailored interlayer spacing. Interlayer spacings from 0.8 to 1.0 nm were tailored by varying the size of the intercalant from (CH 2) 4 to (CH 2) 10. X-ray diffraction and infrared spectroscopy were used to confirm intercalation, and the frequency of the CH 2 stretch confirmed that the intercalants are in a disordered state, with an important contribution from the gauche conformer. Sequential intercalation of diaminoalkanes followed by dodecylamine demonstrated the inability of these "stitched" systems to undergo expansion along the c-direction, indicative of cross-linking. Finally, the reaction of graphite oxide with diaminoalkanes under reflux and for extended periods (>72 h) resulted in the chemical reduction of the graphite oxide to a disordered graphitic structure.
AB - The intercalation reaction of graphite oxide with diaminoalkanes, with the general formula H 2N(CH 2) nNH 2 (n = 4-10), was studied as a method for synthesizing pillared graphite with tailored interlayer spacing. Interlayer spacings from 0.8 to 1.0 nm were tailored by varying the size of the intercalant from (CH 2) 4 to (CH 2) 10. X-ray diffraction and infrared spectroscopy were used to confirm intercalation, and the frequency of the CH 2 stretch confirmed that the intercalants are in a disordered state, with an important contribution from the gauche conformer. Sequential intercalation of diaminoalkanes followed by dodecylamine demonstrated the inability of these "stitched" systems to undergo expansion along the c-direction, indicative of cross-linking. Finally, the reaction of graphite oxide with diaminoalkanes under reflux and for extended periods (>72 h) resulted in the chemical reduction of the graphite oxide to a disordered graphitic structure.
UR - http://www.scopus.com/inward/record.url?scp=35448936757&partnerID=8YFLogxK
U2 - 10.1021/la0633839
DO - 10.1021/la0633839
M3 - Article
AN - SCOPUS:35448936757
SN - 0743-7463
VL - 23
SP - 10644
EP - 10649
JO - Langmuir
JF - Langmuir
IS - 21
ER -