주요메뉴 바로가기 본문 바로가기

주메뉴

IBS Conferences

Graphene Cracks the Glass Corrosion Problem


▲ An example of a glass showing cracking and opacity due to corrosion (Wikipedia)

Researchers at the Center for Multidimensional Carbon Materials (CMCM), within the Institute for Basic Science (IBS) have demonstrated graphene coating protects glass from corrosion. Their research, published in ACS Nano, can contribute to solving problems related to glass corrosion in several industries.

Glass has a high degree of both corrosion and chemical resistance. For this reason it is the primary packaging material to preserve medicines and chemicals. However, over time at high humidity and pH, some glass types corrode. Corroded glass loses its transparency and its strength is reduced. As a result, the corrosion of silicate glass, the most common and oldest form of glass, by water is a serious problem especially for the pharmaceutical, environmental and optical industries, and in particular in hot and humid climates.

Although there are different types of glass, ordinary glazing and containers are made of silicon dioxide (SiO2), sodium oxide (Na2O) along with minor additives. Glass corrosion begins with the adsorption of water on the glass surface. Hydrogen ions from water then diffuse into the glass and exchange with the sodium ions present on the glass surface. The pH of the water near the glass surface increases, allowing the silicate structure to dissolve.


▲ Corrosion mechanism on the glass surface (Reprinted with permission from Bin Wang et al, ACS Nano 2016. Copyright 2016 American Chemical Society).

Scientists have been looking at how to coat glass to protect it from damage. An ideal protective coating should be thin, transparent, and provide a good diffusion barrier to chemical attack. Graphene with its chemical inertness, thinness, and high transparency makes it very promising as a coating material. Moreover, owing to its excellent chemical barrier properties it blocks helium atoms from penetrating through it. The use of graphene coating is being explored as a protective layer for other materials requiring resistance to corrosion, oxidation, friction, bacterial infection, electromagnetic radiation, etc.

IBS scientists grew graphene on copper using a technique previously invented by Prof. Rodney S. Ruoff and collaborators, and transferred either one or two atom-thick layers of graphene onto both sides of rectangular pieces of glass. The effectiveness of the graphene coating was evaluated by water immersion testing and observing the differences between uncoated and coated glass. After 120 days of immersion in water at 60°C, uncoated glass samples had significantly increased in surface roughness and defects, and reduced in fracture strength. In contrast, both the single and double layer graphene-coated glasses had essentially no change in both fracture strength and surface roughness.

“The purpose of the study was to determine whether graphene grown by chemical vapor deposition on copper foils, a now established method, could be transferred onto glass, and protect the glass from corrosion. Our study shows that even one atom-thick layer of graphene does the trick,” explains Prof. Ruoff, director of the CMCM and Professor at the Ulsan National Institute of Science and Technology (UNIST). “In the future, when it is possible to produce larger and yet higher-quality graphene sheets and to optimize the transfer on glass, it seems reasonably likely that graphene coating on glass will be used on an industrial scale.”


▲ Graphene coatings protect glass from corrosion as shown in the atomic force microscopy images on the right. On uncoated glass (top right), the surface roughness increases after immersion in water for 120 days. In contrast, glass plates coated with graphene films were much more stable and the increase in roughness was negligible after immersion in water for 120 days (Reprinted with permission from Bin Wang et al, ACS Nano 2016. Copyright 2016 American Chemical Society).

Letizia Diamante

Notes for editors

- ReferencesBin Wang, Benjamin V. Cunning, Sun-Young Park, Ming Huang, Ju-Young Kim, Rodney S. Ruoff. Graphene Coatings as Barrier Layers to Prevent the Water-Induced Corrosion of Silicate Glass. ACS Nano 2016, DOI: 10.1021/acsnano.6b04363

- Media Contact
For further information or to request media assistance, please contact: Mr. Shi Bo Shim, Head of Department of Communications, Institute for Basic Science (+82-42-878-8189, sibo@ibs.re.kr); Ms. Carol Kim, Global Officer, Department of Communications, Institute for Basic Science (+82-42-878-8133, clitie620@ibs.re.kr) or Letizia Diamante, Science Writer and Visual Producer (+82-42-878-8260, letizia@ibs.re.kr)

- About the Institute for Basic Science (IBS)
IBS was founded in 2011 by the government of the Republic of Korea with the sole purpose of driving forward the development of basic science in South Korea It comprises a total of 50 research centers in all fields of basic science, including mathematics, physics, chemistry, life science, earth science and interdisciplinary science. IBS has launched 26 research centers as of September 2016. There are eight physics, one mathematics, six chemistry, eight life science, and three interdisciplinary research centers.

Center for Multidimensional Carbon Materials

Publication Repository
Rodney S. Ruoff
Rodney , S Ruoff 이메일 보내기 Center for Multidimensional Carbon Materials Publications
Bin Wang
Wang, Bin 이메일 보내기 Center for Multidimensional Carbon Materials Publications
  • [Science daily] Graphene cracks the glass corrosion problem
  • [European Coatings] Graphene coating can protect glass from corrosion
  • [The American Ceramic Society] Cracking the corrosion code: Graphene coating could help mitigate glass damage
  • [Alpha Galileo] Graphene cracks the glass corrosion problem
  • [Industrial Equipment News] Graphene Cracks Glass Corrosion Conundrum
  • [Phys.org] Graphene cracks the glass corrosion problem
  • [e! Science News] Graphene cracks the glass corrosion problem
  • [Solid State Technology] Graphene cracks the glass corrosion problem
  • [nanowerk] Graphene cracks the glass corrosion problem
  • Research

    Are you satisfied with the information on this page?

    Content Manager
    Communications Team : Byun Kwan Joo   042-878-8239
    Last Update 2018-08-23 19:09