Surface characterization and corrosion behavior of silanized magnesium coated with graphene for biomedical application

M. P. Neupane; S. J. Lee; J. Y. Kang; I. S. Park; T. S. Bae; M. H. Lee

doi:10.1016/j.matchemphys.2015.07.034

Surface characterization and corrosion behavior of silanized magnesium coated with graphene for biomedical application

M. P. Neupane
, S. J. Lee
, J. Y. Kang
, I. S. Park
, T. S. Bae
, M. H. Lee^*

^*Corresponding author for this work

Jeonbuk National University
Chungnam National University
Hallym University

Research output: Contribution to journal › Journal article › peer-review

42 Scopus citations

Abstract

We here report the use of thin layers of graphene oxide (GO) as a protective coating that inhibits corrosion of underlying magnesium (Mg) metal. In order to coat the GO layer, Mg surfaces were hydroxylated with NaOH solution followed by silanization with dipping in 3-aminopropyltriethoxysilane (APTES) solution and subsequent coating with GO. Here, electrochemical methods were employed to study the corrosion behavior of Mg by coating graphene on it using multi-step coatings. Potentiodynamic polarization measurement determined that the graphene coating effectively inhibited the metal from corrosion. Electrochemical impedance spectroscopy (EIS) measurements suggested that graphene film on metal surface protect the metal from oxidation. This was as a result of impermeability of GO coatings to ions diffuse of oxidizing gas and corrosive liquid solution.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	163
DOIs	https://doi.org/10.1016/j.matchemphys.2015.07.034
State	Published - 2015.08.1

Keywords

Biomaterials
Coatings
Corrosion
Electrochemical properties
Multilayers

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

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10.1016/j.matchemphys.2015.07.034

Cite this

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title = "Surface characterization and corrosion behavior of silanized magnesium coated with graphene for biomedical application",

abstract = "We here report the use of thin layers of graphene oxide (GO) as a protective coating that inhibits corrosion of underlying magnesium (Mg) metal. In order to coat the GO layer, Mg surfaces were hydroxylated with NaOH solution followed by silanization with dipping in 3-aminopropyltriethoxysilane (APTES) solution and subsequent coating with GO. Here, electrochemical methods were employed to study the corrosion behavior of Mg by coating graphene on it using multi-step coatings. Potentiodynamic polarization measurement determined that the graphene coating effectively inhibited the metal from corrosion. Electrochemical impedance spectroscopy (EIS) measurements suggested that graphene film on metal surface protect the metal from oxidation. This was as a result of impermeability of GO coatings to ions diffuse of oxidizing gas and corrosive liquid solution.",

keywords = "Biomaterials, Coatings, Corrosion, Electrochemical properties, Multilayers",

author = "Neupane, \{M. P.\} and Lee, \{S. J.\} and Kang, \{J. Y.\} and Park, \{I. S.\} and Bae, \{T. S.\} and Lee, \{M. H.\}",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.matchemphys.2015.07.034",

language = "English",

volume = "163",

pages = "229--235",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

}

TY - JOUR

T1 - Surface characterization and corrosion behavior of silanized magnesium coated with graphene for biomedical application

AU - Neupane, M. P.

AU - Lee, S. J.

AU - Kang, J. Y.

AU - Park, I. S.

AU - Bae, T. S.

AU - Lee, M. H.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - We here report the use of thin layers of graphene oxide (GO) as a protective coating that inhibits corrosion of underlying magnesium (Mg) metal. In order to coat the GO layer, Mg surfaces were hydroxylated with NaOH solution followed by silanization with dipping in 3-aminopropyltriethoxysilane (APTES) solution and subsequent coating with GO. Here, electrochemical methods were employed to study the corrosion behavior of Mg by coating graphene on it using multi-step coatings. Potentiodynamic polarization measurement determined that the graphene coating effectively inhibited the metal from corrosion. Electrochemical impedance spectroscopy (EIS) measurements suggested that graphene film on metal surface protect the metal from oxidation. This was as a result of impermeability of GO coatings to ions diffuse of oxidizing gas and corrosive liquid solution.

AB - We here report the use of thin layers of graphene oxide (GO) as a protective coating that inhibits corrosion of underlying magnesium (Mg) metal. In order to coat the GO layer, Mg surfaces were hydroxylated with NaOH solution followed by silanization with dipping in 3-aminopropyltriethoxysilane (APTES) solution and subsequent coating with GO. Here, electrochemical methods were employed to study the corrosion behavior of Mg by coating graphene on it using multi-step coatings. Potentiodynamic polarization measurement determined that the graphene coating effectively inhibited the metal from corrosion. Electrochemical impedance spectroscopy (EIS) measurements suggested that graphene film on metal surface protect the metal from oxidation. This was as a result of impermeability of GO coatings to ions diffuse of oxidizing gas and corrosive liquid solution.

KW - Biomaterials

KW - Coatings

KW - Corrosion

KW - Electrochemical properties

KW - Multilayers

UR - https://www.scopus.com/pages/publications/84940461376

U2 - 10.1016/j.matchemphys.2015.07.034

DO - 10.1016/j.matchemphys.2015.07.034

M3 - Journal article

AN - SCOPUS:84940461376

SN - 0254-0584

VL - 163

SP - 229

EP - 235

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -

Surface characterization and corrosion behavior of silanized magnesium coated with graphene for biomedical application

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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