Center of Excellence in Smart Materials Research and Innovation, King Mongkut’s Institute of Technology Ladkrabang (KMITL) glad to present our 2 products of graphene derivatives which are available for purchase, i.e., reduced graphene oxide (rGO) and graphene oxide (GO).

 

1. Reduced Graphene Oxide (rGO)

 

      1.1 PRODUCT DETAIL

 

        Reduced graphene oxide (rGO): This is a monolayer sheet with electrical conductivity.

 

 

        Fig. 1.1 Showing reduced graphene oxide (rGO) products (in suspension or powder) and its possible chemical structure.

 

        1.2 PREPARATION METHOD

 

        Reduced graphene oxide (rGO) was synthesized via a modified Hummers method by oxidizing graphite with a strong acid and KMnO4, then ultrasonication and followed by chemical reduction method.

 

        1.3 SPECIFICATION AND CHARACTERIZATIONS

 

 

 

        Fig. 1.2 (a) XRD pattern, (b) UV-Vis spectrum, (c) Raman spectrum, (d) XPS spectrum, (e) SEM image, and (f) TEM image of rGO product.

 

2. Graphene Oxide (GO)

 

        2.1. PRODUCT DETAIL

 

        Graphene oxide (GO) is a monolayer sheet and well-dispersion in water with high mechanical properties.

 

 

        Fig. 2.1 Showing graphene oxide (GO) products (in suspension or powder) and its possible chemical structure.

 

        2.2. PREPARATION METHOD

 

        Graphene oxide (GO) was synthesized via a modified Hummers method with a strong acid and KMnO4, and followed by ultrasonication method (in H2O).

 

        2.3 SPECIFICATION AND CHARACTERIZATIONS

 

 

 

        Fig. 2.2 (a) XRD pattern, (b) UV-Vis spectrum, (c) Raman spectrum, (d) XPS spectrum, (e) SEM image, and (f) TEM image of GO product.

 

APPLICATION FIELDS (PUBLICATIONS)

 

1. C. Phrompet ,C. Sriwong and C. Ruttanapun, “Mechanical, dielectric, thermal and antibacterial properties of reduced graphene oxide (rGO) − nanosized C3AH6 cement nanocomposites for smart cement − based materials”, Composites Part B: Engineering Volume 175, 15 October 2019, 107128.
2. D. C. Stanier, A. J. Patil, C. Sriwong, S. S. Rahatekar and J. Ciambella, “The reinforcement effect of exfoliated graphene oxide nanoplatelets on the mechanical and viscoelastic properties of natural rubber”, Composites Science and Technology Volume 95, 1 May 2014, Pages 59-66.
3. C. Phrompet, K. Maneesai, W. Tuichai, A. Karaphun, C. Sriwong and C. Ruttanapun, “Electrochemical properties of tricalcium aluminate hexahydrate − reduced graphene oxide nanocomposites for supercapacitor device”, Journal of Energy Storage Volume 30, August 2020, 101474.
4. W. Thongsamrit, C. Phrompet, K. Maneesai, A. Karaphun, W. Tuichai, C. Sriwong and C. Ruttanapun, “Effect of grain boundary interfaces on electrochemical and thermoelectric properties of a Bi2Te3 / reduced graphene oxide composites”, Materials Chemistry and Physics Volume 250, 1 August 2020, 123196.

 

CONTACTS:

 

1. Center of Excellence in Smart Materials Research and Innovation, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand, or

2. Department of Physics, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
Name: Associate Professor Dr. Chesta Ruttanapun , Phone: 0815104965, E-mail: chesta.ruttanapun@gmail.com