Gas permeation parameters of mixed matrix membranes based on the polymer of intrinsic microporosity PIM-1 and the zeolitic imidazolate framework ZIF-8

Kód výsledku v IS VaVaI

RIV/60461373:22340/13:43895272 - isvavai.cz

Výsledek na webu

http://www.sciencedirect.com/science/article/pii/S0376738812007065

DOI - Digital Object Identifier

10.1016/j.memsci.2012.09.035

Jazyk výsledku

angličtina

Název v původním jazyce

Gas permeation parameters of mixed matrix membranes based on the polymer of intrinsic microporosity PIM-1 and the zeolitic imidazolate framework ZIF-8

Popis výsledku v původním jazyce

Mixed matrix membranes (MMMs) based on the polymer of intrinsic microporosity PIM-1and the zeolitic imidazolate framework ZIF-8 were prepared and their permeation and sorption properties investigated. Self-supported films with ZIF-8 contents up to 43 vol% were studied using GC gas permeation apparatus and a McBain sorption microbalance. Permeability coefficients were determined for the following set of gases:He,H2, O2, N2, CO2, CH4. For ??as-cast?? films, an increase in ZIF-8 loading results in increases in the permeability and diffusion coefficients as well as in the separation factors a(H2/N2), a(H2/CH4), a(He/N2), a(O2/N2) and a(CO2/CH4). For all ZIF-8 contents studied, permeability is enhanced by treatment with ethanol. Data points on several Robeson diagrams are located above the 2008 upper bound. Free volume in MMMs containing ZIF-8 was studied using positron annihilation life time spectroscopy (PALS) and radiothermoluminescence (RTL) methods. It was shown that the introduction

Název v anglickém jazyce

Gas permeation parameters of mixed matrix membranes based on the polymer of intrinsic microporosity PIM-1 and the zeolitic imidazolate framework ZIF-8

Popis výsledku anglicky

Mixed matrix membranes (MMMs) based on the polymer of intrinsic microporosity PIM-1and the zeolitic imidazolate framework ZIF-8 were prepared and their permeation and sorption properties investigated. Self-supported films with ZIF-8 contents up to 43 vol% were studied using GC gas permeation apparatus and a McBain sorption microbalance. Permeability coefficients were determined for the following set of gases:He,H2, O2, N2, CO2, CH4. For ??as-cast?? films, an increase in ZIF-8 loading results in increases in the permeability and diffusion coefficients as well as in the separation factors a(H2/N2), a(H2/CH4), a(He/N2), a(O2/N2) and a(CO2/CH4). For all ZIF-8 contents studied, permeability is enhanced by treatment with ethanol. Data points on several Robeson diagrams are located above the 2008 upper bound. Free volume in MMMs containing ZIF-8 was studied using positron annihilation life time spectroscopy (PALS) and radiothermoluminescence (RTL) methods. It was shown that the introduction

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

—

Svazek periodika

427

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

15

Strana od-do

48-62

Kód UT WoS článku

000311842400006

EID výsledku v databázi Scopus

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