Fabrication of vertically aligned copper nanotubes as a novel electrode for enzymatic biofuel cells

Diwakar Kashyap; Raghvendra Singh Yadav; Smita Gohil; P. S. Venkateswaran; Jitendra K. Pandey; Gyu Man Kim; Young Ho Kim; Prabhat K. Dwivedi; Ashutosh Sharma; Pushan Ayyub; Sanket Goel

doi:10.1016/j.electacta.2015.03.164

Fabrication of vertically aligned copper nanotubes as a novel electrode for enzymatic biofuel cells

Diwakar Kashyap, Raghvendra Singh Yadav, Smita Gohil, P. S. Venkateswaran, Jitendra K. Pandey, Gyu Man Kim, Young Ho Kim, Prabhat K. Dwivedi, Ashutosh Sharma, Pushan Ayyub, Sanket Goel

School of Mechanical Engineering

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

15 Scopus citations

Abstract

Abstract Herein, Laccase catalysed oxygen reduction reaction on polyaniline coated copper nanotube bio-cathode was studied. The copper nanotubes were grown in anodic aluminium oxide template on which conductive polymer polyaniline was electrodeposited. Laccase was covalently immobilized using a linker molecule glutraldehyde. The effective wiring of enzyme with bio-cathode was confirmed by linear sweep voltammetry, chronoamperometry and open circuit potential measurement. All electro analysis was performed in conventional three electrode system using platinum wire counter electrode and Ag/AgCl reference electrode. The bio-cathode in air saturated phosphate buffer showed maximum OCP and current of 0.59 V and 140.12 μAcm^-2 respectively. Moreover, electrochemical impedance analysis confirmed decrease in charge transfer resistance with the immobilization of enzyme on CuNTs/polyaniline electrode. The bio-cathode showed reproducibility and stability over the period of examination.

Original language	English
Article number	24690
Pages (from-to)	213-218
Number of pages	6
Journal	Electrochimica Acta
Volume	167
DOIs	https://doi.org/10.1016/j.electacta.2015.03.164
State	Published - 10 Jun 2015

Keywords

Biofuel cell
Copper Nanotube
Direct Electron Transfer (DET)
Electrochemical Impedance Spectroscopy (EIS)
Enzyme Immobilization

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10.1016/j.electacta.2015.03.164

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@article{65a4f25d63cc4f2a8dc2e705228f21f6,

title = "Fabrication of vertically aligned copper nanotubes as a novel electrode for enzymatic biofuel cells",

abstract = "Abstract Herein, Laccase catalysed oxygen reduction reaction on polyaniline coated copper nanotube bio-cathode was studied. The copper nanotubes were grown in anodic aluminium oxide template on which conductive polymer polyaniline was electrodeposited. Laccase was covalently immobilized using a linker molecule glutraldehyde. The effective wiring of enzyme with bio-cathode was confirmed by linear sweep voltammetry, chronoamperometry and open circuit potential measurement. All electro analysis was performed in conventional three electrode system using platinum wire counter electrode and Ag/AgCl reference electrode. The bio-cathode in air saturated phosphate buffer showed maximum OCP and current of 0.59 V and 140.12 μAcm-2 respectively. Moreover, electrochemical impedance analysis confirmed decrease in charge transfer resistance with the immobilization of enzyme on CuNTs/polyaniline electrode. The bio-cathode showed reproducibility and stability over the period of examination.",

keywords = "Biofuel cell, Copper Nanotube, Direct Electron Transfer (DET), Electrochemical Impedance Spectroscopy (EIS), Enzyme Immobilization",

author = "Diwakar Kashyap and Yadav, {Raghvendra Singh} and Smita Gohil and Venkateswaran, {P. S.} and Pandey, {Jitendra K.} and Kim, {Gyu Man} and Kim, {Young Ho} and Dwivedi, {Prabhat K.} and Ashutosh Sharma and Pushan Ayyub and Sanket Goel",

year = "2015",

month = jun,

day = "10",

doi = "10.1016/j.electacta.2015.03.164",

language = "English",

volume = "167",

pages = "213--218",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Fabrication of vertically aligned copper nanotubes as a novel electrode for enzymatic biofuel cells

AU - Kashyap, Diwakar

AU - Yadav, Raghvendra Singh

AU - Gohil, Smita

AU - Venkateswaran, P. S.

AU - Pandey, Jitendra K.

AU - Kim, Gyu Man

AU - Kim, Young Ho

AU - Dwivedi, Prabhat K.

AU - Sharma, Ashutosh

AU - Ayyub, Pushan

AU - Goel, Sanket

PY - 2015/6/10

Y1 - 2015/6/10

N2 - Abstract Herein, Laccase catalysed oxygen reduction reaction on polyaniline coated copper nanotube bio-cathode was studied. The copper nanotubes were grown in anodic aluminium oxide template on which conductive polymer polyaniline was electrodeposited. Laccase was covalently immobilized using a linker molecule glutraldehyde. The effective wiring of enzyme with bio-cathode was confirmed by linear sweep voltammetry, chronoamperometry and open circuit potential measurement. All electro analysis was performed in conventional three electrode system using platinum wire counter electrode and Ag/AgCl reference electrode. The bio-cathode in air saturated phosphate buffer showed maximum OCP and current of 0.59 V and 140.12 μAcm-2 respectively. Moreover, electrochemical impedance analysis confirmed decrease in charge transfer resistance with the immobilization of enzyme on CuNTs/polyaniline electrode. The bio-cathode showed reproducibility and stability over the period of examination.

AB - Abstract Herein, Laccase catalysed oxygen reduction reaction on polyaniline coated copper nanotube bio-cathode was studied. The copper nanotubes were grown in anodic aluminium oxide template on which conductive polymer polyaniline was electrodeposited. Laccase was covalently immobilized using a linker molecule glutraldehyde. The effective wiring of enzyme with bio-cathode was confirmed by linear sweep voltammetry, chronoamperometry and open circuit potential measurement. All electro analysis was performed in conventional three electrode system using platinum wire counter electrode and Ag/AgCl reference electrode. The bio-cathode in air saturated phosphate buffer showed maximum OCP and current of 0.59 V and 140.12 μAcm-2 respectively. Moreover, electrochemical impedance analysis confirmed decrease in charge transfer resistance with the immobilization of enzyme on CuNTs/polyaniline electrode. The bio-cathode showed reproducibility and stability over the period of examination.

KW - Biofuel cell

KW - Copper Nanotube

KW - Direct Electron Transfer (DET)

KW - Electrochemical Impedance Spectroscopy (EIS)

KW - Enzyme Immobilization

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U2 - 10.1016/j.electacta.2015.03.164

DO - 10.1016/j.electacta.2015.03.164

M3 - Article

AN - SCOPUS:84926168612

SN - 0013-4686

VL - 167

SP - 213

EP - 218

JO - Electrochimica Acta

JF - Electrochimica Acta

M1 - 24690

ER -

Fabrication of vertically aligned copper nanotubes as a novel electrode for enzymatic biofuel cells

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