Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

Robert Ccorahua; Omar P. Troncoso; Sol Rodriguez; Daniel Lopez; Fernando G. Torres

doi:10.1016/j.carbpol.2017.05.005

Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

Robert Ccorahua, Omar P. Troncoso, Sol Rodriguez, Daniel Lopez, Fernando G. Torres

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

41 Scopus citations

Abstract

A novel method to prepare BC nanocomposites reinforced with reduced graphene oxide (RGO) is reported. A simple hydrazine treatment is shown to in-situ reduce the graphene oxide (GO) incorporated to BC films while increasing their conductivity. Raman spectroscopy was used to confirm the presence of graphene and assess the effect of the hydrazine treatment on its structure. XRD tests revealed no changes on BC structure. We hypothesize that this treatment removes the hydroxyl and epoxy groups present on the reduced graphene and increases the content of nonoxygenated carbon. These changes account for the increase in conductivity of the BC-based films, which behaved as an insulating material before the hydrazine treatment and reach an average conductivity value of 12 S/m after such a treatment.

Original language	English
Pages (from-to)	68-76
Number of pages	9
Journal	Carbohydrate Polymers
Volume	171
DOIs	https://doi.org/10.1016/j.carbpol.2017.05.005
State	Published - 1 Sep 2017

Keywords

Bacterial cellulose
Electric conductivity
Hydrazine
Reduced graphene oxide

Access to Document

10.1016/j.carbpol.2017.05.005

Cite this

@article{a8fc8f1aff9f47f79fb3a5e71d8db231,

title = "Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method",

abstract = "A novel method to prepare BC nanocomposites reinforced with reduced graphene oxide (RGO) is reported. A simple hydrazine treatment is shown to in-situ reduce the graphene oxide (GO) incorporated to BC films while increasing their conductivity. Raman spectroscopy was used to confirm the presence of graphene and assess the effect of the hydrazine treatment on its structure. XRD tests revealed no changes on BC structure. We hypothesize that this treatment removes the hydroxyl and epoxy groups present on the reduced graphene and increases the content of nonoxygenated carbon. These changes account for the increase in conductivity of the BC-based films, which behaved as an insulating material before the hydrazine treatment and reach an average conductivity value of 12 S/m after such a treatment.",

keywords = "Bacterial cellulose, Electric conductivity, Hydrazine, Reduced graphene oxide",

author = "Robert Ccorahua and Troncoso, {Omar P.} and Sol Rodriguez and Daniel Lopez and Torres, {Fernando G.}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = sep,

day = "1",

doi = "10.1016/j.carbpol.2017.05.005",

language = "English",

volume = "171",

pages = "68--76",

journal = "Carbohydrate Polymers",

issn = "0144-8617",

}

TY - JOUR

T1 - Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

AU - Ccorahua, Robert

AU - Troncoso, Omar P.

AU - Rodriguez, Sol

AU - Lopez, Daniel

AU - Torres, Fernando G.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - A novel method to prepare BC nanocomposites reinforced with reduced graphene oxide (RGO) is reported. A simple hydrazine treatment is shown to in-situ reduce the graphene oxide (GO) incorporated to BC films while increasing their conductivity. Raman spectroscopy was used to confirm the presence of graphene and assess the effect of the hydrazine treatment on its structure. XRD tests revealed no changes on BC structure. We hypothesize that this treatment removes the hydroxyl and epoxy groups present on the reduced graphene and increases the content of nonoxygenated carbon. These changes account for the increase in conductivity of the BC-based films, which behaved as an insulating material before the hydrazine treatment and reach an average conductivity value of 12 S/m after such a treatment.

AB - A novel method to prepare BC nanocomposites reinforced with reduced graphene oxide (RGO) is reported. A simple hydrazine treatment is shown to in-situ reduce the graphene oxide (GO) incorporated to BC films while increasing their conductivity. Raman spectroscopy was used to confirm the presence of graphene and assess the effect of the hydrazine treatment on its structure. XRD tests revealed no changes on BC structure. We hypothesize that this treatment removes the hydroxyl and epoxy groups present on the reduced graphene and increases the content of nonoxygenated carbon. These changes account for the increase in conductivity of the BC-based films, which behaved as an insulating material before the hydrazine treatment and reach an average conductivity value of 12 S/m after such a treatment.

KW - Bacterial cellulose

KW - Electric conductivity

KW - Hydrazine

KW - Reduced graphene oxide

UR - http://www.scopus.com/inward/record.url?scp=85019049308&partnerID=8YFLogxK

U2 - 10.1016/j.carbpol.2017.05.005

DO - 10.1016/j.carbpol.2017.05.005

M3 - Article

C2 - 28578972

AN - SCOPUS:85019049308

SN - 0144-8617

VL - 171

SP - 68

EP - 76

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

ER -

Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this