Preparation of graphene oxide/polyethyleneimine layer-by-layer assembled film for enhanced hydrogen barrier property

被引：39

作者：

Zhao, Lili ^{[1
,4
]}

Zhang, Hongyu ^{[1
]}

Kim, Nam Hoon ^{[2
]}

Hui, David ^{[3
]}

Lee, Joong Hee ^{[2
]}

Li, Qi ^{[5
]}

Sun, Haixiang ^{[1
]}

Li, Peng ^{[1
]}

机构：

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Coll Chem Engn, Qingdao 266580, Peoples R China

[2] Chonbuk Natl Univ, Adv Mat Res Inst BIN Convergence Technol, Dept BIN Convergence Technol, Jeonju 561756, Jeonbuk, South Korea

[3] Univ New Orleans, Dept Mech Engn, New Orleans, LA 70148 USA

[4] Qingdao Bright Moon Seaweed Grp Co Ltd, State Key Lab Bioact Seaweed Subst, Qingdao 266400, Peoples R China

[5] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Layered structures; Microstructure; Surface analysis; Assembly; SUPER GAS BARRIER; OXIDE; FABRICATION; DEPOSITION; SINGLE; ORDER; PH;

D O I：

10.1016/j.compositesb.2016.02.037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A super hydrogen barrier film was prepared via layer-by-layer self-assembly of graphene oxide (GO) and polyethyleneimine (PEI), and the effects of pH of the PEI solution on the performance of LBL films were studied in detail. Results show that the pH value of PEI solution has a significant influence not only on the adsorbed amount of self-assembly materials but also the stacking morphology of GO sheets. When the pH values of GO suspension and PEI solution are identical, the self-assembled film shows a superior hydrogen gas barrier performance under pH of 3.5. When the pH value of GO suspension was fixed and that of PEI solution was varied, the adsorbed amount of the film was increased and reached a maximum value when the pH of PEI solution was 12, and the film prepared under this condition had a 12.7% increase on thickness and a 55.5% decrease on its hydrogen transmission rate (H2TR). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：252 / 258

页数：7

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