Cross‐Linking between Sodalite Nanoparticles and Graphene Oxide in Composite Membranes to Trigger High Gas Permeance, Selectivity, and Stability in Hydrogen Separation | Zendy

Guo Hailing | Zendy; Kong Guodong | Zendy; Yang Ge | Zendy; Pang Jia | Zendy; Kang Zixi | Zendy; Feng Shou | Zendy; Zhao Lei | Zendy; Fan Lili | Zendy; Zhu Liangkui | Zendy; Vicente Aurélie | Zendy; Peng Peng | Zendy; Yan Zifeng | Zendy; Sun Daofeng | Zendy; Mintova Svetlana | Zendy

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Cross‐Linking between Sodalite Nanoparticles and Graphene Oxide in Composite Membranes to Trigger High Gas Permeance, Selectivity, and Stability in Hydrogen Separation

Author(s) -

Guo Hailing,

Kong Guodong,

Yang Ge,

Pang Jia,

Kang Zixi,

Feng Shou,

Zhao Lei,

Fan Lili,

Zhu Liangkui,

Vicente Aurélie,

Peng Peng,

Yan Zifeng,

Sun Daofeng,

Mintova Svetlana

Publication year - 2020

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201915797

Subject(s) - permeance , membrane , chemical engineering , graphene , materials science , selectivity , sodalite , oxide , amorphous solid , nanoparticle , nanocomposite , gas separation , chemistry , nanotechnology , organic chemistry , catalysis , zeolite , biochemistry , engineering , metallurgy

Thin membranes (900 nm) were prepared by direct transformation of infiltrated amorphous precursor nanoparticles, impregnated in a graphene oxide (GO) matrix, into hydroxy sodalite (SOD) nanocrystals. The amorphous precursor particles rich in silanols (Si−OH) enhanced the interactions with the GO, thus leading to the formation of highly adhesive and stable SOD/GO membranes via strong bonding. The cross‐linking of SOD nanoparticles with the GO in the membranes promoted both the high gas permeance and enhanced selectivity towards H 2 from a mixture containing CO 2 and H 2 O. The SOD/GO membranes are moisture resistance and exhibit steady separation performance (H 2 permeance of about 4900 GPU and H 2 /CO 2 selectivity of 56, with no degradation in performance during the test of 50 h) at high temperature (200 °C) under water vapor (4 mol %).

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