Tailoring the Porosity and Microstructure of Printed Graphene Electrodes via Polymer Phase Inversion

Ethan B. Secor; Manuel H. Dos Santos; Shay G. Wallace; Nathan P. Bradshaw; Mark C. Hersam

doi:10.1021/acs.jpcc.8b00580

Tailoring the Porosity and Microstructure of Printed Graphene Electrodes via Polymer Phase Inversion

Ethan B. Secor, Manuel H. Dos Santos, Shay G. Wallace, Nathan P. Bradshaw, Mark C. Hersam

Northwestern University

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

10 Citations (Scopus)

Abstract

Phase inversion is demonstrated as an effective method for engineering the microstructure of graphene films by exploiting the well-defined solubility characteristics of polymer dispersants. Drying of a tailored phase inversion ink containing a nonvolatile nonsolvent leads to gelation and subsequent pore formation, providing a promising strategy to tailor the porosity of the resulting graphene films. Graphene films with tunable porosity and electrical conductivity ranging from ∼1000 to ∼22 000 S/m are fabricated by this method. Moreover, this dry phase inversion technique is compatible with conventional coating and printing methods, allowing direct ink writing of porous graphene microsupercapacitor electrodes for energy storage applications. Overall, this method provides a straightforward and versatile strategy for engineering the microstructure of solution-processed nanomaterials.

Original language	English
Pages (from-to)	13745-13750
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	122
Issue number	25
DOIs	https://doi.org/10.1021/acs.jpcc.8b00580
Publication status	Published - Jun 28 2018

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

Access to Document

10.1021/acs.jpcc.8b00580

Fingerprint Dive into the research topics of 'Tailoring the Porosity and Microstructure of Printed Graphene Electrodes via Polymer Phase Inversion'. Together they form a unique fingerprint.

Cite this

@article{419629a1f8e14a61915a71ec4682b929,

title = "Tailoring the Porosity and Microstructure of Printed Graphene Electrodes via Polymer Phase Inversion",

abstract = "Phase inversion is demonstrated as an effective method for engineering the microstructure of graphene films by exploiting the well-defined solubility characteristics of polymer dispersants. Drying of a tailored phase inversion ink containing a nonvolatile nonsolvent leads to gelation and subsequent pore formation, providing a promising strategy to tailor the porosity of the resulting graphene films. Graphene films with tunable porosity and electrical conductivity ranging from ∼1000 to ∼22 000 S/m are fabricated by this method. Moreover, this dry phase inversion technique is compatible with conventional coating and printing methods, allowing direct ink writing of porous graphene microsupercapacitor electrodes for energy storage applications. Overall, this method provides a straightforward and versatile strategy for engineering the microstructure of solution-processed nanomaterials.",

author = "Secor, {Ethan B.} and {Dos Santos}, {Manuel H.} and Wallace, {Shay G.} and Bradshaw, {Nathan P.} and Hersam, {Mark C.}",

year = "2018",

month = jun,

day = "28",

doi = "10.1021/acs.jpcc.8b00580",

language = "English",

volume = "122",

pages = "13745--13750",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "25",

}

TY - JOUR

T1 - Tailoring the Porosity and Microstructure of Printed Graphene Electrodes via Polymer Phase Inversion

AU - Secor, Ethan B.

AU - Dos Santos, Manuel H.

AU - Wallace, Shay G.

AU - Bradshaw, Nathan P.

AU - Hersam, Mark C.

PY - 2018/6/28

Y1 - 2018/6/28

N2 - Phase inversion is demonstrated as an effective method for engineering the microstructure of graphene films by exploiting the well-defined solubility characteristics of polymer dispersants. Drying of a tailored phase inversion ink containing a nonvolatile nonsolvent leads to gelation and subsequent pore formation, providing a promising strategy to tailor the porosity of the resulting graphene films. Graphene films with tunable porosity and electrical conductivity ranging from ∼1000 to ∼22 000 S/m are fabricated by this method. Moreover, this dry phase inversion technique is compatible with conventional coating and printing methods, allowing direct ink writing of porous graphene microsupercapacitor electrodes for energy storage applications. Overall, this method provides a straightforward and versatile strategy for engineering the microstructure of solution-processed nanomaterials.

AB - Phase inversion is demonstrated as an effective method for engineering the microstructure of graphene films by exploiting the well-defined solubility characteristics of polymer dispersants. Drying of a tailored phase inversion ink containing a nonvolatile nonsolvent leads to gelation and subsequent pore formation, providing a promising strategy to tailor the porosity of the resulting graphene films. Graphene films with tunable porosity and electrical conductivity ranging from ∼1000 to ∼22 000 S/m are fabricated by this method. Moreover, this dry phase inversion technique is compatible with conventional coating and printing methods, allowing direct ink writing of porous graphene microsupercapacitor electrodes for energy storage applications. Overall, this method provides a straightforward and versatile strategy for engineering the microstructure of solution-processed nanomaterials.

UR - http://www.scopus.com/inward/record.url?scp=85049414906&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049414906&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.8b00580

DO - 10.1021/acs.jpcc.8b00580

M3 - Article

AN - SCOPUS:85049414906

VL - 122

SP - 13745

EP - 13750

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 25

ER -