Activation routes for high surface area graphene monoliths from graphene oxide colloids

Shuwen Wang; Ferdinando Tristan; Daiki Minami; Toshihiko Fujimori; Rodolfo Cruz-Silva; Mauricio Terrones; Kenji Takeuchi; Katsuya Teshima; Francisco Rodríguez-Reinoso; Morinobu Endo; Katsumi Kaneko

doi:10.1016/j.carbon.2014.04.071

Activation routes for high surface area graphene monoliths from graphene oxide colloids

Shuwen Wang, Ferdinando Tristan, Daiki Minami, Toshihiko Fujimori, Rodolfo Cruz-Silva, Mauricio Terrones, Kenji Takeuchi, Katsuya Teshima, Francisco Rodríguez-Reinoso, Morinobu Endo, Katsumi Kaneko

Research output: Contribution to journal › Article › peer-review

75 Citations (SciVal)

Abstract

Graphene monoliths made from graphene oxide colloids by unidirectional freeze-drying method were activated by typical activation processes of CO ₂ activation, chemical activation using ZnCl₂ or H ₃PO₄, and KOH activation. The porosity development of graphene monolith markedly depends on the activation method. The monoliths with highest surface area are obtained by the KOH activation method; only the KOH activation is effective for production of the graphene monolith of which surface area is in the range of 1760-2150 m² g^-1. The mechanism of the porosity development by KOH activation method is proposed. This work provides a promising route for the bottom-up design of pore width-tunable nanoporous carbons.

Original language	English (US)
Pages (from-to)	220-231
Number of pages	12
Journal	Carbon
Volume	76
DOIs	https://doi.org/10.1016/j.carbon.2014.04.071
State	Published - Sep 2014

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

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10.1016/j.carbon.2014.04.071

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@article{0cf2e0c08eac4eaf98ec9e19a904022f,

title = "Activation routes for high surface area graphene monoliths from graphene oxide colloids",

abstract = "Graphene monoliths made from graphene oxide colloids by unidirectional freeze-drying method were activated by typical activation processes of CO 2 activation, chemical activation using ZnCl2 or H 3PO4, and KOH activation. The porosity development of graphene monolith markedly depends on the activation method. The monoliths with highest surface area are obtained by the KOH activation method; only the KOH activation is effective for production of the graphene monolith of which surface area is in the range of 1760-2150 m2 g-1. The mechanism of the porosity development by KOH activation method is proposed. This work provides a promising route for the bottom-up design of pore width-tunable nanoporous carbons.",

author = "Shuwen Wang and Ferdinando Tristan and Daiki Minami and Toshihiko Fujimori and Rodolfo Cruz-Silva and Mauricio Terrones and Kenji Takeuchi and Katsuya Teshima and Francisco Rodr{\'i}guez-Reinoso and Morinobu Endo and Katsumi Kaneko",

note = "Funding Information: K.K., F.T., T.F., R.C.-S., M.T. and M.E. were supported by Exotic Nanocarbons, Japan Regional Innovation Strategy Program by the Excellence, JST . This work was supported by Grant-in-Aid for Scientific Research (A) ( 24241038 ) and Concert-Japan project: Efficient Energy Storage and Distribution, JST . D.M. and this study were partially supported by JST CREST “Creation of Innovative Functional Materials with Advanced Properties by Hyper-nano-space Design”.",

year = "2014",

month = sep,

doi = "10.1016/j.carbon.2014.04.071",

language = "English (US)",

volume = "76",

pages = "220--231",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Activation routes for high surface area graphene monoliths from graphene oxide colloids

AU - Wang, Shuwen

AU - Tristan, Ferdinando

AU - Minami, Daiki

AU - Fujimori, Toshihiko

AU - Cruz-Silva, Rodolfo

AU - Terrones, Mauricio

AU - Takeuchi, Kenji

AU - Teshima, Katsuya

AU - Rodríguez-Reinoso, Francisco

AU - Endo, Morinobu

AU - Kaneko, Katsumi

N1 - Funding Information: K.K., F.T., T.F., R.C.-S., M.T. and M.E. were supported by Exotic Nanocarbons, Japan Regional Innovation Strategy Program by the Excellence, JST . This work was supported by Grant-in-Aid for Scientific Research (A) ( 24241038 ) and Concert-Japan project: Efficient Energy Storage and Distribution, JST . D.M. and this study were partially supported by JST CREST “Creation of Innovative Functional Materials with Advanced Properties by Hyper-nano-space Design”.

PY - 2014/9

Y1 - 2014/9

N2 - Graphene monoliths made from graphene oxide colloids by unidirectional freeze-drying method were activated by typical activation processes of CO 2 activation, chemical activation using ZnCl2 or H 3PO4, and KOH activation. The porosity development of graphene monolith markedly depends on the activation method. The monoliths with highest surface area are obtained by the KOH activation method; only the KOH activation is effective for production of the graphene monolith of which surface area is in the range of 1760-2150 m2 g-1. The mechanism of the porosity development by KOH activation method is proposed. This work provides a promising route for the bottom-up design of pore width-tunable nanoporous carbons.

AB - Graphene monoliths made from graphene oxide colloids by unidirectional freeze-drying method were activated by typical activation processes of CO 2 activation, chemical activation using ZnCl2 or H 3PO4, and KOH activation. The porosity development of graphene monolith markedly depends on the activation method. The monoliths with highest surface area are obtained by the KOH activation method; only the KOH activation is effective for production of the graphene monolith of which surface area is in the range of 1760-2150 m2 g-1. The mechanism of the porosity development by KOH activation method is proposed. This work provides a promising route for the bottom-up design of pore width-tunable nanoporous carbons.

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SN - 0008-6223

VL - 76

SP - 220

EP - 231

JO - Carbon

JF - Carbon

ER -

Activation routes for high surface area graphene monoliths from graphene oxide colloids

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