Microwave-enabled production of solution-processable graphene: Principles and techniques of macroscopic modelling

Andrew O. Holmes, Chuqiao Yang, Mehulkumar Patel, Keerthi Savaram, Huixin He, Vadim V. Yakovlev

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

In the recently introduced method of production of graphene from graphite powder in a mixture of nitric and sulphuric acids under microwave irradiation, the problem of control over reaction temperature (and thus over the quality of graphene sheets) remains unresolved. This paper focuses on physical aspects of the production process, considers its implementation in the MiniFlow 200SS microwave system, and models certain regimes of interactions of microwaves in this system with some components of the reactant. Simulations show a very high heating rate for graphite powder, extreme temperature non-uniformity, a strong need for data about formation of new chemical bonds, and the necessity to account for convection flows.

Original languageEnglish (US)
Pages13-16
Number of pages4
StatePublished - 2013
Event14th International Conference on Microwave and High Frequency Heating, AMPERE 2013 - Nottingham, United Kingdom
Duration: Sep 17 2013Sep 19 2013

Other

Other14th International Conference on Microwave and High Frequency Heating, AMPERE 2013
Country/TerritoryUnited Kingdom
CityNottingham
Period9/17/139/19/13

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Complex permittivity
  • Convection flow
  • Graphite powder
  • Nitric acid
  • Sulphuric acid
  • Temperature model
  • Thermal conductivity

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