Fluidic behaviours in a 2D folded-graphene aerogel monolith
Conduction of pressurized water through two-dimensional (2D) layers in monolithic folded-graphene aerogels (FGA) is investigated experimentally. The synthesized FGA has a regular layered structure with a uniform d-spacing around 20 nm. Compared with one-dimensional nanofluidics in carbon nanotube ar...
Saved in:
Published in | Journal of physics. D, Applied physics Vol. 48; no. 42; pp. 425301 - 425306 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
28.10.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Conduction of pressurized water through two-dimensional (2D) layers in monolithic folded-graphene aerogels (FGA) is investigated experimentally. The synthesized FGA has a regular layered structure with a uniform d-spacing around 20 nm. Compared with one-dimensional nanofluidics in carbon nanotube arrays that have a similar characteristic length scale, the conduction pressure of FGA is much lower by nearly 2/3. The reduction in pressure may be attributed to the more energetically favourable molecular configurations in the 2D nanoenvironment, associated with the relaxation of lateral constraints of water molecules. The water conduction pressure through FGA rises exponentially with the sample thickness, due to the interlayer resistance. This finding may find wide applications in nanotransportation, nanofiltration, and nanofluidic energy management. |
---|---|
Bibliography: | JPhysD-105790.R1 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-3727 1361-6463 |
DOI: | 10.1088/0022-3727/48/42/425301 |