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

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

SASN Chemistry

Research output: Contribution to conference › Paper › peer-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 language	English (US)
Pages	13-16
Number of pages	4
State	Published - 2013
Event	14th International Conference on Microwave and High Frequency Heating, AMPERE 2013 - Nottingham, United Kingdom Duration: Sep 17 2013 → Sep 19 2013

Other

Other	14th International Conference on Microwave and High Frequency Heating, AMPERE 2013
Country/Territory	United Kingdom
City	Nottingham
Period	9/17/13 → 9/19/13

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

Cite this

@conference{3edf6c98ba9e484ca895a83e73c3777a,

title = "Microwave-enabled production of solution-processable graphene: Principles and techniques of macroscopic modelling",

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.",

keywords = "Complex permittivity, Convection flow, Graphite powder, Nitric acid, Sulphuric acid, Temperature model, Thermal conductivity",

author = "Holmes, {Andrew O.} and Chuqiao Yang and Mehulkumar Patel and Keerthi Savaram and Huixin He and Yakovlev, {Vadim V.}",

year = "2013",

language = "English (US)",

pages = "13--16",

note = "14th International Conference on Microwave and High Frequency Heating, AMPERE 2013 ; Conference date: 17-09-2013 Through 19-09-2013",

}

Microwave-enabled production of solution-processable graphene : Principles and techniques of macroscopic modelling. / Holmes, Andrew O.; Yang, Chuqiao; Patel, Mehulkumar; Savaram, Keerthi; He, Huixin; Yakovlev, Vadim V.

2013. 13-16 Paper presented at 14th International Conference on Microwave and High Frequency Heating, AMPERE 2013, Nottingham, United Kingdom.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Microwave-enabled production of solution-processable graphene

T2 - 14th International Conference on Microwave and High Frequency Heating, AMPERE 2013

AU - Holmes, Andrew O.

AU - Yang, Chuqiao

AU - Patel, Mehulkumar

AU - Savaram, Keerthi

AU - He, Huixin

AU - Yakovlev, Vadim V.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Complex permittivity

KW - Convection flow

KW - Graphite powder

KW - Nitric acid

KW - Sulphuric acid

KW - Temperature model

KW - Thermal conductivity

UR - http://www.scopus.com/inward/record.url?scp=85013786131&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85013786131&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85013786131

SP - 13

EP - 16

Y2 - 17 September 2013 through 19 September 2013

ER -

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

Abstract

Other

All Science Journal Classification (ASJC) codes

Keywords

Other files and links

Fingerprint

Cite this