A general and facile method for preparation of large-scale reduced graphene oxide films with controlled structures

Hengchang Bi; Shu Wan; Xiehong Cao; Xing Wu; Yilong Zhou; Kuibo Yin; Shi Su; Qinglang Ma; Melinda Sindoro; Jingfang Zhu; Zhuoran Zhang; Hua Zhang; Litao Sun

doi:10.1016/j.carbon.2018.11.007

A general and facile method for preparation of large-scale reduced graphene oxide films with controlled structures

Hengchang Bi
, Shu Wan
, Xiehong Cao
, Xing Wu
, Yilong Zhou
, Kuibo Yin
, Shi Su
, Qinglang Ma
, Melinda Sindoro
, Jingfang Zhu
, Zhuoran Zhang
, Hua Zhang^*
, Litao Sun^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

40 Citations (Scopus)

Abstract

Graphene or reduced graphene oxide films (rGOFs) can be prepared by a number of methods including chemical vapor deposition (CVD), filtration, and spin-coating for a variety of applications. However, controlling their surface morphologies and microstructures to meet the requirements of specific applications is still a great challenge. Here, controlled microstructure of large-size rGOF with good electrical and thermal conductivities as well as high sorption ability is produced through a heating-assisted spray method. By simply tuning the heating temperature, the smooth surface and close-packed layered structure of rGOF can be changed to rough surface and porous structure. Impressively, the rapid preparation of rGOF with area as large as ∼216 cm² in only 6 h has been successfully achieved, which is significant since normally it takes several days to prepare a rGOF with small area of ∼10 cm² by using conventional filtration method. More importantly, our rGOFs show promising applications in oil sorption, supercapacitors, and thermally/electrically conductive films.

Original language	English
Pages (from-to)	162-171
Journal	Carbon
Volume	143
Online published	8 Nov 2018
DOIs	https://doi.org/10.1016/j.carbon.2018.11.007
Publication status	Published - Mar 2019
Externally published	Yes

Funding

H.B. and S.W. contributed equally to this paper. This work was supported by the Fundamental Research Funds for the Central Universities ( 2242017K41006 , and 2242016R20013 ), the National Natural Science Foundation of China (Nos 61274114 , 51420105003 , and 113279028 ), China Postdoctoral Science Foundation funded project (Nos 2017M611653 ), and the “Qianjiang Scholars” program and “Thousand Talent Program” of Zhejiang Province. This work was also supported by MOE under AcRF Tier 2 (ARC 19/15, No. MOE2014-T2-2-093 ; MOE2015-T2-2-057 ; MOE2016-T2-2-103 ) and AcRF Tier 1 ( 2016-T1-001-147 ; 2016-T1-002-051 ), NTU under Start-Up Grant ( M4081296.070.500000 ), and NOL Fellowship Programme Research Grant in Singapore. This research grant is supported by the Singapore National Research Foundation under its Environmental & Water Technologies Strategic Research Programme and administered by the Environment & Water Industry Programme Office (EWI) of the PUB (project No.: 1301-IRIS-47 ). This research is supported by the National Research Foundation , Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. Appendix A

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Research Keywords

Graphene films
Heating-assisted spraying
Reduced graphene oxide films
Sorption for oils
Thermally/electrically conductive films

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10.1016/j.carbon.2018.11.007

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title = "A general and facile method for preparation of large-scale reduced graphene oxide films with controlled structures",

abstract = "Graphene or reduced graphene oxide films (rGOFs) can be prepared by a number of methods including chemical vapor deposition (CVD), filtration, and spin-coating for a variety of applications. However, controlling their surface morphologies and microstructures to meet the requirements of specific applications is still a great challenge. Here, controlled microstructure of large-size rGOF with good electrical and thermal conductivities as well as high sorption ability is produced through a heating-assisted spray method. By simply tuning the heating temperature, the smooth surface and close-packed layered structure of rGOF can be changed to rough surface and porous structure. Impressively, the rapid preparation of rGOF with area as large as ∼216 cm2 in only 6 h has been successfully achieved, which is significant since normally it takes several days to prepare a rGOF with small area of ∼10 cm2 by using conventional filtration method. More importantly, our rGOFs show promising applications in oil sorption, supercapacitors, and thermally/electrically conductive films.",

keywords = "Graphene films, Heating-assisted spraying, Reduced graphene oxide films, Sorption for oils, Thermally/electrically conductive films",

author = "Hengchang Bi and Shu Wan and Xiehong Cao and Xing Wu and Yilong Zhou and Kuibo Yin and Shi Su and Qinglang Ma and Melinda Sindoro and Jingfang Zhu and Zhuoran Zhang and Hua Zhang and Litao Sun",

year = "2019",

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doi = "10.1016/j.carbon.2018.11.007",

language = "English",

volume = "143",

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T1 - A general and facile method for preparation of large-scale reduced graphene oxide films with controlled structures

AU - Bi, Hengchang

AU - Wan, Shu

AU - Cao, Xiehong

AU - Wu, Xing

AU - Zhou, Yilong

AU - Yin, Kuibo

AU - Su, Shi

AU - Ma, Qinglang

AU - Sindoro, Melinda

AU - Zhu, Jingfang

AU - Zhang, Zhuoran

AU - Zhang, Hua

AU - Sun, Litao

PY - 2019/3

Y1 - 2019/3

N2 - Graphene or reduced graphene oxide films (rGOFs) can be prepared by a number of methods including chemical vapor deposition (CVD), filtration, and spin-coating for a variety of applications. However, controlling their surface morphologies and microstructures to meet the requirements of specific applications is still a great challenge. Here, controlled microstructure of large-size rGOF with good electrical and thermal conductivities as well as high sorption ability is produced through a heating-assisted spray method. By simply tuning the heating temperature, the smooth surface and close-packed layered structure of rGOF can be changed to rough surface and porous structure. Impressively, the rapid preparation of rGOF with area as large as ∼216 cm2 in only 6 h has been successfully achieved, which is significant since normally it takes several days to prepare a rGOF with small area of ∼10 cm2 by using conventional filtration method. More importantly, our rGOFs show promising applications in oil sorption, supercapacitors, and thermally/electrically conductive films.

AB - Graphene or reduced graphene oxide films (rGOFs) can be prepared by a number of methods including chemical vapor deposition (CVD), filtration, and spin-coating for a variety of applications. However, controlling their surface morphologies and microstructures to meet the requirements of specific applications is still a great challenge. Here, controlled microstructure of large-size rGOF with good electrical and thermal conductivities as well as high sorption ability is produced through a heating-assisted spray method. By simply tuning the heating temperature, the smooth surface and close-packed layered structure of rGOF can be changed to rough surface and porous structure. Impressively, the rapid preparation of rGOF with area as large as ∼216 cm2 in only 6 h has been successfully achieved, which is significant since normally it takes several days to prepare a rGOF with small area of ∼10 cm2 by using conventional filtration method. More importantly, our rGOFs show promising applications in oil sorption, supercapacitors, and thermally/electrically conductive films.

KW - Graphene films

KW - Heating-assisted spraying

KW - Reduced graphene oxide films

KW - Sorption for oils

KW - Thermally/electrically conductive films

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U2 - 10.1016/j.carbon.2018.11.007

DO - 10.1016/j.carbon.2018.11.007

M3 - RGC 21 - Publication in refereed journal

SN - 0008-6223

VL - 143

SP - 162

EP - 171

JO - Carbon

JF - Carbon

ER -

A general and facile method for preparation of large-scale reduced graphene oxide films with controlled structures

Abstract

Funding

UN SDGs

Research Keywords

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