Los ingenieros han construido una membrana de óxido de grafeno de menos de 2 nanómetros de espesor con una alta permeabilidad entre las moléculas de hidrógeno y dióxido de carbono. Este avance permitirá la purificación del agua del fracking.
Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation
Hang Li1,2, Zhuonan Song1,2, Xiaojie Zhang1,2, Yi Huang1,2, Shiguang Li3, Yating Mao1, Harry J. Ploehn1, Yu Bao4, Miao Yu1,2,*
"Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high as 3400 and 900 for H2/CO2 and H2/N2 mixtures, respectively, through selective structural defects on GO." http://www.sciencemag.org/content/342/6154/95.abstract?sid=cf3aaf07-a11f-4ae8-8e36-dcc7803ddb15
Comentarios
menos mal, por un momento pense que esta semana no tendriamos noticia de grafeno
Lo cual no evita que dejen el terreno hecho una mierda.
¡Hay grafeno, hay meneo!
Enlace al artículo científico:
Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation
Hang Li1,2, Zhuonan Song1,2, Xiaojie Zhang1,2, Yi Huang1,2, Shiguang Li3, Yating Mao1, Harry J. Ploehn1, Yu Bao4, Miao Yu1,2,*
"Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high as 3400 and 900 for H2/CO2 and H2/N2 mixtures, respectively, through selective structural defects on GO."
http://www.sciencemag.org/content/342/6154/95.abstract?sid=cf3aaf07-a11f-4ae8-8e36-dcc7803ddb15
¡Ah pues ya está! Todo resuelto..
Grafeno vs Fracking... o ¿qué ocurre cuando una fuerza irresistible colisiona con un objeto inamovible?
#3 Perdona, pero esta semana ya tuvimos notición de grafeno: Jorge Bravo, el Ferran Adrià del grafeno, mejora la receta: inventa el grafeno fotónico
Jorge Bravo, el Ferran Adrià del grafeno, mejora l...
elconfidencial.com#3 Ya te digo. Yo ya empezaba a tener una angustia acojonante por no ver noticia alguna y ya estaba pensando en el prodac para mitigarla.
El amigo público nº1 de Menéame vs el enemigo público nº1 de Menéame.
Menos mal que es sábado, si pasa entre semana explota esto o algo.
#5 ¿Podria dios crear una roca tan pesada que ni él mismo pudiera moverla?