%0 Journal Article %1 Fan201448 %A Fan, Zeng %A Tng, Daniel Zhi Yong %A Lim, Clarisse Xue Ting %A Liu, Peng %A Nguyen, Son Truong %A Xiao, Pengfei %A Marconnet, Amy %A Lim, Christina Y.H. %A Duong, Hai M. %D 2014 %J Colloids and Surfaces A: Physicochemical and Engineering Aspects %K CNTs Graphene InfraredMicroscopy aerogels myown thermalconductivity %N 0 %P 48 - 53 %R http://dx.doi.org/10.1016/j.colsurfa.2013.12.083 %T Thermal and electrical properties of graphene/carbon nanotube aerogels %U http://www.sciencedirect.com/science/article/pii/S0927775714000284 %V 445 %X Abstract Graphene and carbon nanotube (CNT) aerogels provide combinations of mechanical, thermal, and electrical properties that are interesting for a variety of applications. In this work, the impact of three different reducing agents (l-ascorbic acid (LAA), \HI\ and NaHSO3) and carbon nanotubes on the morphologies and properties of the graphene aerogels (GAs) are studied systematically. Additional, the impact of thermal annealing at 450 °C for 5 h under Ar environment is also investigated. Annealing treatment and the addition \CNTs\ enhance the electrical conductivities of the \GAs\ up to a factor of 5. Thermal annealing impacts the surface area of the GAs. Specifically, the surface areas of those reduced by \HI\ and NaHSO3 decreased by 30%, while those reduced by ŁAA\ or dispersed with \CNTs\ increased by 15%. The thermal conductivity of the highly porous \GAs\ is measured using an improved infrared microscopy technique to be ∼0.10 W/(m K). The optimization of the nanostructures and properties of the \GAs\ is important for various applications, such as energy storage devices and nanocomposites.

@article{Fan201448, abstract = {Abstract Graphene and carbon nanotube (CNT) aerogels provide combinations of mechanical, thermal, and electrical properties that are interesting for a variety of applications. In this work, the impact of three different reducing agents (l-ascorbic acid (LAA), \{HI\} and NaHSO3) and carbon nanotubes on the morphologies and properties of the graphene aerogels (GAs) are studied systematically. Additional, the impact of thermal annealing at 450 °C for 5 h under Ar environment is also investigated. Annealing treatment and the addition \{CNTs\} enhance the electrical conductivities of the \{GAs\} up to a factor of 5. Thermal annealing impacts the surface area of the GAs. Specifically, the surface areas of those reduced by \{HI\} and NaHSO3 decreased by 30%, while those reduced by \{LAA\} or dispersed with \{CNTs\} increased by 15%. The thermal conductivity of the highly porous \{GAs\} is measured using an improved infrared microscopy technique to be ∼0.10 W/(m K). The optimization of the nanostructures and properties of the \{GAs\} is important for various applications, such as energy storage devices and nanocomposites. }, added-at = {2015-05-12T19:43:56.000+0200}, author = {Fan, Zeng and Tng, Daniel Zhi Yong and Lim, Clarisse Xue Ting and Liu, Peng and Nguyen, Son Truong and Xiao, Pengfei and Marconnet, Amy and Lim, Christina Y.H. and Duong, Hai M.}, biburl = {https://www.bibsonomy.org/bibtex/2fb2bff7d904b381baeb21c49a4b316d1/tennocrama}, doi = {http://dx.doi.org/10.1016/j.colsurfa.2013.12.083}, interhash = {bad8862766d690c7e1055b58b59144fa}, intrahash = {fb2bff7d904b381baeb21c49a4b316d1}, issn = {0927-7757}, journal = {Colloids and Surfaces A: Physicochemical and Engineering Aspects }, keywords = {CNTs Graphene InfraredMicroscopy aerogels myown thermalconductivity}, number = 0, pages = {48 - 53}, timestamp = {2015-05-12T19:46:33.000+0200}, title = {Thermal and electrical properties of graphene/carbon nanotube aerogels }, url = {http://www.sciencedirect.com/science/article/pii/S0927775714000284}, volume = 445, year = 2014 }