Electrically-controlled permeation of vapors through carbon nanotube network-based membranes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63519041" target="_blank" >RIV/70883521:28110/18:63519041 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985874:_____/18:00488006 RIV/70883521:28610/18:63519041

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TNANO.2018.2802042" target="_blank" >http://dx.doi.org/10.1109/TNANO.2018.2802042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNANO.2018.2802042" target="_blank" >10.1109/TNANO.2018.2802042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrically-controlled permeation of vapors through carbon nanotube network-based membranes

Popis výsledku v původním jazyce

DC voltage was used to control and increase the permeation rate of typical carbohydrate and alcohol vapors through a conductive membrane composed either of a layer of entangled multiwalled carbon nanotubes or of a nanotube layer strengthened by a porous polyurethane nonwoven mat. The permeation rate rise was partly due to the Joule effect increasing the membrane temperature and the vapor pressure in the vicinity of the inlet side of the membrane. However, the effects of vapor polarity and the interaction of vapor and charged nanotubes were also involved. When the nanotube membrane was uncharged, the permeation rate was higher for nonpolar hydrocarbon and nonpolar tetrachlormethane vapors than for polar methanol vapors. The opposite effect was observed for an electrically charged membrane. Whereas the increasing voltage and, consequently, the membrane temperature increased the relative permeation rates of both vapor types, the relative permeation rate of alcohol vapors was up to twofold higher than the corresponding rates for carbohydrate vapors at the similar membrane temperature.

Název v anglickém jazyce

Electrically-controlled permeation of vapors through carbon nanotube network-based membranes

Popis výsledku anglicky

DC voltage was used to control and increase the permeation rate of typical carbohydrate and alcohol vapors through a conductive membrane composed either of a layer of entangled multiwalled carbon nanotubes or of a nanotube layer strengthened by a porous polyurethane nonwoven mat. The permeation rate rise was partly due to the Joule effect increasing the membrane temperature and the vapor pressure in the vicinity of the inlet side of the membrane. However, the effects of vapor polarity and the interaction of vapor and charged nanotubes were also involved. When the nanotube membrane was uncharged, the permeation rate was higher for nonpolar hydrocarbon and nonpolar tetrachlormethane vapors than for polar methanol vapors. The opposite effect was observed for an electrically charged membrane. Whereas the increasing voltage and, consequently, the membrane temperature increased the relative permeation rates of both vapor types, the relative permeation rate of alcohol vapors was up to twofold higher than the corresponding rates for carbohydrate vapors at the similar membrane temperature.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Nanotechnology

ISSN

1536-125X

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

332-337

Kód UT WoS článku

000427251000018

EID výsledku v databázi Scopus

2-s2.0-85041680432