Enhanced TiO2 surface electrochemistry with carbonised layer-by-layer cellulose-PDDA composite films

A Vuorema, Sara Shariki, M Sillanpaa, W Thielemans, G W Nelson, J S Foord, Sara E C Dale, Simon Bending, Frank Marken

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this report we demonstrate a versatile (and potentially low-cost) cellulose nano-whisker-based surface carbonisation method that allows well-defined films of TiO2 nanoparticles surface-modified with carbon to be obtained. In a layer-by-layer electrostatic deposition process based on TiO2 nanoparticles, cellulose nano-whiskers, and poly(diallyl-dimethylammonium) or PDDA are employed to control the ratio of surface carbon to TiO2. Characterisation based on optical, AFM, XRD, and XPS methods is reported. Electrochemical measurements suggest improved access to surface states, dopamine binding at the anatase surface, and surface redox cycling aided by the thin amorphous carbon film in mesoporous TiO2. In future, the amorphous carbon layer method could be applied for surface processes for a wider range of semiconductor or insulator surfaces.
Original languageEnglish
Pages (from-to)9857-9862
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume13
Issue number20
DOIs
Publication statusPublished - 2011

Fingerprint

Cellulose films
Electrochemistry
Composite films
electrochemistry
cellulose
composite materials
Amorphous carbon
carbon
Cellulose
Carbon
Nanoparticles
Carbon films
Carbonization
nanoparticles
dopamine
Surface states
Amorphous films
carbonization
Electrostatics
Dopamine

Cite this

Enhanced TiO2 surface electrochemistry with carbonised layer-by-layer cellulose-PDDA composite films. / Vuorema, A; Shariki, Sara; Sillanpaa, M; Thielemans, W; Nelson, G W; Foord, J S; Dale, Sara E C; Bending, Simon; Marken, Frank.

In: Physical Chemistry Chemical Physics, Vol. 13, No. 20, 2011, p. 9857-9862.

Research output: Contribution to journalArticle

Vuorema, A ; Shariki, Sara ; Sillanpaa, M ; Thielemans, W ; Nelson, G W ; Foord, J S ; Dale, Sara E C ; Bending, Simon ; Marken, Frank. / Enhanced TiO2 surface electrochemistry with carbonised layer-by-layer cellulose-PDDA composite films. In: Physical Chemistry Chemical Physics. 2011 ; Vol. 13, No. 20. pp. 9857-9862.
@article{ffb97d54bf0c4736b3419b96deb9345c,
title = "Enhanced TiO2 surface electrochemistry with carbonised layer-by-layer cellulose-PDDA composite films",
abstract = "In this report we demonstrate a versatile (and potentially low-cost) cellulose nano-whisker-based surface carbonisation method that allows well-defined films of TiO2 nanoparticles surface-modified with carbon to be obtained. In a layer-by-layer electrostatic deposition process based on TiO2 nanoparticles, cellulose nano-whiskers, and poly(diallyl-dimethylammonium) or PDDA are employed to control the ratio of surface carbon to TiO2. Characterisation based on optical, AFM, XRD, and XPS methods is reported. Electrochemical measurements suggest improved access to surface states, dopamine binding at the anatase surface, and surface redox cycling aided by the thin amorphous carbon film in mesoporous TiO2. In future, the amorphous carbon layer method could be applied for surface processes for a wider range of semiconductor or insulator surfaces.",
author = "A Vuorema and Sara Shariki and M Sillanpaa and W Thielemans and Nelson, {G W} and Foord, {J S} and Dale, {Sara E C} and Simon Bending and Frank Marken",
year = "2011",
doi = "10.1039/c1cp20532c",
language = "English",
volume = "13",
pages = "9857--9862",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "20",

}

TY - JOUR

T1 - Enhanced TiO2 surface electrochemistry with carbonised layer-by-layer cellulose-PDDA composite films

AU - Vuorema, A

AU - Shariki, Sara

AU - Sillanpaa, M

AU - Thielemans, W

AU - Nelson, G W

AU - Foord, J S

AU - Dale, Sara E C

AU - Bending, Simon

AU - Marken, Frank

PY - 2011

Y1 - 2011

N2 - In this report we demonstrate a versatile (and potentially low-cost) cellulose nano-whisker-based surface carbonisation method that allows well-defined films of TiO2 nanoparticles surface-modified with carbon to be obtained. In a layer-by-layer electrostatic deposition process based on TiO2 nanoparticles, cellulose nano-whiskers, and poly(diallyl-dimethylammonium) or PDDA are employed to control the ratio of surface carbon to TiO2. Characterisation based on optical, AFM, XRD, and XPS methods is reported. Electrochemical measurements suggest improved access to surface states, dopamine binding at the anatase surface, and surface redox cycling aided by the thin amorphous carbon film in mesoporous TiO2. In future, the amorphous carbon layer method could be applied for surface processes for a wider range of semiconductor or insulator surfaces.

AB - In this report we demonstrate a versatile (and potentially low-cost) cellulose nano-whisker-based surface carbonisation method that allows well-defined films of TiO2 nanoparticles surface-modified with carbon to be obtained. In a layer-by-layer electrostatic deposition process based on TiO2 nanoparticles, cellulose nano-whiskers, and poly(diallyl-dimethylammonium) or PDDA are employed to control the ratio of surface carbon to TiO2. Characterisation based on optical, AFM, XRD, and XPS methods is reported. Electrochemical measurements suggest improved access to surface states, dopamine binding at the anatase surface, and surface redox cycling aided by the thin amorphous carbon film in mesoporous TiO2. In future, the amorphous carbon layer method could be applied for surface processes for a wider range of semiconductor or insulator surfaces.

UR - http://www.scopus.com/inward/record.url?scp=79955580407&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1039/c1cp20532c

U2 - 10.1039/c1cp20532c

DO - 10.1039/c1cp20532c

M3 - Article

VL - 13

SP - 9857

EP - 9862

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 20

ER -