materials-chemistry-2018-keynote

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Journal of Materials Science and Nanotechnology | Volume: 2

August 20-21, 2018 | Paris, France

Materials Science and Materials Chemistry

International Conference on

raphene (monolayer and few layers) is a two-

dimensional material with the large anisotropy between

in-plane and out-of-plane directions. Carbon nanowalls

(CNWs) are layered graphene with open boundaries,

standing vertically on a substrate to form a self-supported

network of maze like-wall structures. This kind of carbon

nanostructure is also called carbon nanoflake, carbon

nanosheet, graphene nanosheet, and graphene nanowall.

CNWs are sometimes decorated with metal nanoparticles

and biomolecules. The structure of conductive CNWs with

a large surface area, combined with surface decoration,

would be suitable for the platform in electrochemical and

biosensing applications. CNWs and similar vertical graphene

structures can be synthesized by plasma enhanced chemical

vapour deposition (PECVD) techniques on heated substrates

(600-800˚C) employing methane and hydrogen mixtures.

Control of CNW structures including spacing between

adjacent nanowalls and crystallinity is significant for the

practical applications. Moreover, surface functionalization

including surface termination and decoration with catalytic

metal nanoparticles should be established. We report

the current status of fabrication and structure control of

CNWs. Moreover, the CNW surface was decorated with Pt

nanoparticles by the reduction of chloroplatinic acid or by the

metal-organic chemical deposition employing supercritical

fluid. We also report the performances of hydrogen peroxide

sensor and fuel cell, where CNW electrode was used.

Speaker Biography

MineoHiramatsuisaFullProfessorofDepartmentofElectricalandElectronicEngineering

and the Director of Research Institute, Meijo University, Japan. His main fields of

researchareplasmadiagnosticsandplasmaprocessingforthesynthesisofthinfilmsand

isanauthorofmorethan100scientificpapersandpatents

on plasma processes for materials science and a Japan Society of Applied Physics Fellow.

Mineo Hiramatsu

Meijo University, Japan

Synthesis of vertical graphene network and its emerging applications