High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film

Taking advantage of the strong charge interactions between negatively charged graphene oxide (GO) sheets and positively charged poly(diallyldimethylammonium chloride) (PDDA), self-assembled multilayer films of (GO/PDDA)n were created on hydroxylated silicon substrates by alternating electrostatic ad...

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Autores principales:	Li Chen, Gang Wu, Yin Huang, Changning Bai, Yuanlie Yu, Junyan Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	2D materials self-assembly composite films micro/macro-tribological behaviors high loading capacity Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f75c0f9faefd4d34b370dd27f7d0ed5b
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spelling	oai:doaj.org-article:f75c0f9faefd4d34b370dd27f7d0ed5b2021-12-01T12:37:04ZHigh Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film2296-264610.3389/fchem.2021.740140https://doaj.org/article/f75c0f9faefd4d34b370dd27f7d0ed5b2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.740140/fullhttps://doaj.org/toc/2296-2646Taking advantage of the strong charge interactions between negatively charged graphene oxide (GO) sheets and positively charged poly(diallyldimethylammonium chloride) (PDDA), self-assembled multilayer films of (GO/PDDA)n were created on hydroxylated silicon substrates by alternating electrostatic adsorption of GO and PDDA. The formation and structure of the films were analyzed by means of water contact angle measurement, thickness measurement, atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Meanwhile, tribological behaviors in micro- and macro- scale were investigated by AFM and a ball-on-plate tribometer, respectively. The results showed that (GO/PDDA)n multilayer films exhibited excellent friction-reducing and anti-wear abilities in both micro- and macro-scale, which was ascribed to the special structure in (GO/PDDA)n multilayer films, namely, a well-stacked GO–GO layered structure and an elastic 3D crystal stack in whole. Such a film structure is suitable for design molecular lubricants for MEMS and other microdevices.Li ChenGang WuYin HuangChangning BaiChangning BaiYuanlie YuYuanlie YuJunyan ZhangJunyan ZhangFrontiers Media S.A.article2D materialsself-assemblycomposite filmsmicro/macro-tribological behaviorshigh loading capacityChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	2D materials self-assembly composite films micro/macro-tribological behaviors high loading capacity Chemistry QD1-999
spellingShingle	2D materials self-assembly composite films micro/macro-tribological behaviors high loading capacity Chemistry QD1-999 Li Chen Gang Wu Yin Huang Changning Bai Changning Bai Yuanlie Yu Yuanlie Yu Junyan Zhang Junyan Zhang High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
description	Taking advantage of the strong charge interactions between negatively charged graphene oxide (GO) sheets and positively charged poly(diallyldimethylammonium chloride) (PDDA), self-assembled multilayer films of (GO/PDDA)n were created on hydroxylated silicon substrates by alternating electrostatic adsorption of GO and PDDA. The formation and structure of the films were analyzed by means of water contact angle measurement, thickness measurement, atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Meanwhile, tribological behaviors in micro- and macro- scale were investigated by AFM and a ball-on-plate tribometer, respectively. The results showed that (GO/PDDA)n multilayer films exhibited excellent friction-reducing and anti-wear abilities in both micro- and macro-scale, which was ascribed to the special structure in (GO/PDDA)n multilayer films, namely, a well-stacked GO–GO layered structure and an elastic 3D crystal stack in whole. Such a film structure is suitable for design molecular lubricants for MEMS and other microdevices.
format	article
author	Li Chen Gang Wu Yin Huang Changning Bai Changning Bai Yuanlie Yu Yuanlie Yu Junyan Zhang Junyan Zhang
author_facet	Li Chen Gang Wu Yin Huang Changning Bai Changning Bai Yuanlie Yu Yuanlie Yu Junyan Zhang Junyan Zhang
author_sort	Li Chen
title	High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
title_short	High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
title_full	High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
title_fullStr	High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
title_full_unstemmed	High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film
title_sort	high loading capacity and wear resistance of graphene oxide/organic molecule assembled multilayer film
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/f75c0f9faefd4d34b370dd27f7d0ed5b
work_keys_str_mv	AT lichen highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT gangwu highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT yinhuang highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT changningbai highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT changningbai highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT yuanlieyu highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT yuanlieyu highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT junyanzhang highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm AT junyanzhang highloadingcapacityandwearresistanceofgrapheneoxideorganicmoleculeassembledmultilayerfilm
_version_	1718405211889860608

High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film

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