Complete corrosion inhibition through graphene defect passivation

ACS Nano
Ya-Ping HsiehLi-Chyong Chen

Abstract

Graphene is expected to enable superior corrosion protection due to its impermeability and chemical inertness. Previous reports, however, demonstrate limited corrosion inhibition and even corrosion enhancement of graphene on metal surfaces. To enable the reliable and complete passivation, the origin of the low inhibition efficiency of graphene was investigated. Combining electrochemical and morphological characterization techniques, nanometer-sized structural defects in chemical vapor deposition grown graphene were found to be the cause for the limited passivation effect. Extremely fast mass transport on the order of meters per second both across and parallel to graphene layers results in an inhibition efficiency of only ∼50% for Cu covered with up to three graphene layers. Through selective passivation of the defects by atomic layer deposition (ALD) an enhanced corrosion protection of more than 99% was achieved, which compares favorably with commercial corrosion protection methods.

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Citations

Dec 23, 2015·Nanoscale·Ya-Ping HsiehMario Hofmann
Oct 27, 2015·Journal of the American Chemical Society·Robert S WeatherupStephan Hofmann
Apr 12, 2016·Scientific Reports·Tae Hoon SeoMyung Jong Kim
Apr 8, 2015·Chemistry : a European Journal·Adriano Ambrosi, Martin Pumera
Apr 29, 2015·Faraday Discussions·Line KyhlLiv Hornekær
Nov 19, 2014·Proceedings of the National Academy of Sciences of the United States of America·Yunxi YaoXinhe Bao
Dec 2, 2014·Chemical Communications : Chem Comm·Hsiu-Hui ChenJui-Ming Yeh
Jun 10, 2017·ACS Applied Materials & Interfaces·An T NguyenChia-Chen Hsu
Sep 22, 2017·Materials·Abhishek Tiwari, R K Singh Raman
Jun 12, 2018·Advanced Materials·Jinsung KwakSoon-Yong Kwon
Nov 23, 2019·Small·Arie BorensteinRichard B Kaner
Oct 11, 2016·Chemical Society Reviews·Qiang Fu, Xinhe Bao
Nov 6, 2015·Nanoscale·Ya-Ping HsiehMario Hofmann
Oct 23, 2015·Nanotechnology·Jae-Young LimDongmok Whang
Feb 11, 2016·Nanotechnology·Ya-Ping HsiehMario Hofmann
Jul 30, 2015·Nanotechnology·Mario HofmannYa-Ping Hsieh
Oct 3, 2020·Nanotechnology·Suki N ZhangZhihong Chen
Jul 27, 2021·Advanced Materials·Da LuoRodney S Ruoff
Sep 28, 2018·ACS Applied Nano Materials·Line KyhlLiv Hornekær
Oct 28, 2019·ACS Applied Materials & Interfaces·Jiheng DingHaibin Yu
Jan 3, 2020·ACS Applied Materials & Interfaces·Fatima AkhtarMindaugas Lukosius
Sep 5, 2014·Journal of the American Chemical Society·Robert S WeatherupStephan Hofmann
Jan 1, 2021·ACS Nano·Govind ChilkoorVenkataramana Gadhamshetty
Oct 30, 2020·ACS Nano·Wala A AlgozeebJames M Tour
Oct 16, 2021·Advanced Materials·Sandhya SusarlaPulickel M Ajayan

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