TY - JOUR
T1 - Electrochemical exfoliation of graphite in nanofibrillated kenaf cellulose (NFC)/surfactant mixture for the development of conductive paper
AU - Ardyani, Tretya
AU - Mohamed, Azmi
AU - Abu Bakar, Suriani
AU - Sagisaka, Masanobu
AU - Umetsu, Yasushi
AU - Hafiz Mamat, Mohamad
AU - Khairul Ahmad, Mohd
AU - Abdul Khalil, H. P.S.
AU - King, Stephen M.
AU - Rogers, Sarah E.
AU - Eastoe, Julian
PY - 2020/1/15
Y1 - 2020/1/15
N2 - The effect of incorporating common dodecyl anionic and cationic surfactants such as dodecyltrimethylammonium bromide (DTAB), dodecylethyldimethylammonium bromide (DDAB), and sodium dodecylsulfate (SDS) in nanocomposites of reduced graphene oxide and nanocellulose are described. The stabilization and electrical properties of the nanocomoposites of reduced graphene oxide (RGO) and nanofibrillated kenaf cellulose (NFC) were characterized using four-point probe electrical conductivity measurements. Raman spectroscopy, field emission scanning electron microscopy, and high-resolution transmission electron microscopy were used to investigate dispersion morphology and the quality of RGO inside the NFC matrices. Small-angle neutron scattering (SANS) was used to study the aggregation behavior of the aqueous surfactant systems and RGO dispersions. The cationic surfactant DTAB proved to be the best choice for stabilization of RGO in NFC, giving enhanced electrical conductivity five orders of magnitude higher than the neat NFC. The results highlight the effects of hydrophilic surfactant moieties on the structure, stability and properties of RGO/NFC composites.
AB - The effect of incorporating common dodecyl anionic and cationic surfactants such as dodecyltrimethylammonium bromide (DTAB), dodecylethyldimethylammonium bromide (DDAB), and sodium dodecylsulfate (SDS) in nanocomposites of reduced graphene oxide and nanocellulose are described. The stabilization and electrical properties of the nanocomoposites of reduced graphene oxide (RGO) and nanofibrillated kenaf cellulose (NFC) were characterized using four-point probe electrical conductivity measurements. Raman spectroscopy, field emission scanning electron microscopy, and high-resolution transmission electron microscopy were used to investigate dispersion morphology and the quality of RGO inside the NFC matrices. Small-angle neutron scattering (SANS) was used to study the aggregation behavior of the aqueous surfactant systems and RGO dispersions. The cationic surfactant DTAB proved to be the best choice for stabilization of RGO in NFC, giving enhanced electrical conductivity five orders of magnitude higher than the neat NFC. The results highlight the effects of hydrophilic surfactant moieties on the structure, stability and properties of RGO/NFC composites.
KW - Conductive paper
KW - Electrochemical exfoliation
KW - Ionic surfactant
KW - Nanocellulose
KW - Reduced graphene oxide
UR - http://www.scopus.com/inward/record.url?scp=85072766376&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2019.115376
DO - 10.1016/j.carbpol.2019.115376
M3 - Article (Academic Journal)
C2 - 31635739
AN - SCOPUS:85072766376
SN - 0144-8617
VL - 228
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 115376
ER -