Layer-by-layer assembled polyaniline nanofiber/multiwall carbon nanotube thin film electrodes for high-power and high-energy storage applications

Md Nasim Hyder; Seung Woo Lee; Fevzi Ç Cebeci; Daniel J. Schmidt; Yang Shao-Horn; Paula T. Hammond

doi:10.1021/nn2029617

Layer-by-layer assembled polyaniline nanofiber/multiwall carbon nanotube thin film electrodes for high-power and high-energy storage applications

Md Nasim Hyder, Seung Woo Lee, Fevzi Ç Cebeci, Daniel J. Schmidt, Yang Shao-Horn, Paula T. Hammond

Genetics, Cell Biology and Development (CBS)

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

255 Scopus citations

Abstract

Thin film electrodes of polyaniline (PANi) nanofibers and functionalized multiwall carbon nanotubes (MWNTs) are created by layer-by-layer (LbL) assembly for microbatteries or -electrochemical capacitors. Highly stable cationic PANi nanofibers, synthesized from the rapid aqueous phase polymerization of aniline, are assembled with carboxylic acid functionalized MWNT into LbL films. The pH-dependent surface charge of PANi nanofibers and MWNTs allows the system to behave like weak polyelectrolytes with controllable LbL film thickness and morphology by varying the number of bilayers. The LbL-PANi/MWNT films consist of a nanoscale interpenetrating network structure with well developed nanopores that yield excellent electrochemical performance for energy storage applications. These LbL-PANi/MWNT films in lithium cell can store high volumetric capacitance (∼238 ± 32 F/cm³) and high volumetric capacity (∼210 mAh/cm³). In addition, rate-dependent galvanostatic tests show LbL-PANi/MWNT films can deliver both high power and high energy density (∼220 Wh/L_electrode at ∼100 kW/L _electrode) and could be promising positive electrode materials for thin film microbatteries or electrochemical capacitors.

Original language	English (US)
Pages (from-to)	8552-8561
Number of pages	10
Journal	ACS nano
Volume	5
Issue number	11
DOIs	https://doi.org/10.1021/nn2029617
State	Published - Nov 22 2011

Keywords

carbon nanotubes
electrochemical capacitors
layer-by-layer assembly
lithium-ion batteries
nanostructured electrodes
polyaniline

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/nn2029617

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title = "Layer-by-layer assembled polyaniline nanofiber/multiwall carbon nanotube thin film electrodes for high-power and high-energy storage applications",

abstract = "Thin film electrodes of polyaniline (PANi) nanofibers and functionalized multiwall carbon nanotubes (MWNTs) are created by layer-by-layer (LbL) assembly for microbatteries or -electrochemical capacitors. Highly stable cationic PANi nanofibers, synthesized from the rapid aqueous phase polymerization of aniline, are assembled with carboxylic acid functionalized MWNT into LbL films. The pH-dependent surface charge of PANi nanofibers and MWNTs allows the system to behave like weak polyelectrolytes with controllable LbL film thickness and morphology by varying the number of bilayers. The LbL-PANi/MWNT films consist of a nanoscale interpenetrating network structure with well developed nanopores that yield excellent electrochemical performance for energy storage applications. These LbL-PANi/MWNT films in lithium cell can store high volumetric capacitance (∼238 ± 32 F/cm3) and high volumetric capacity (∼210 mAh/cm3). In addition, rate-dependent galvanostatic tests show LbL-PANi/MWNT films can deliver both high power and high energy density (∼220 Wh/Lelectrode at ∼100 kW/L electrode) and could be promising positive electrode materials for thin film microbatteries or electrochemical capacitors.",

keywords = "carbon nanotubes, electrochemical capacitors, layer-by-layer assembly, lithium-ion batteries, nanostructured electrodes, polyaniline",

author = "Hyder, {Md Nasim} and Lee, {Seung Woo} and Cebeci, {Fevzi {\c C}} and Schmidt, {Daniel J.} and Yang Shao-Horn and Hammond, {Paula T.}",

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TY - JOUR

T1 - Layer-by-layer assembled polyaniline nanofiber/multiwall carbon nanotube thin film electrodes for high-power and high-energy storage applications

AU - Hyder, Md Nasim

AU - Lee, Seung Woo

AU - Cebeci, Fevzi Ç

AU - Schmidt, Daniel J.

AU - Shao-Horn, Yang

AU - Hammond, Paula T.

PY - 2011/11/22

Y1 - 2011/11/22

N2 - Thin film electrodes of polyaniline (PANi) nanofibers and functionalized multiwall carbon nanotubes (MWNTs) are created by layer-by-layer (LbL) assembly for microbatteries or -electrochemical capacitors. Highly stable cationic PANi nanofibers, synthesized from the rapid aqueous phase polymerization of aniline, are assembled with carboxylic acid functionalized MWNT into LbL films. The pH-dependent surface charge of PANi nanofibers and MWNTs allows the system to behave like weak polyelectrolytes with controllable LbL film thickness and morphology by varying the number of bilayers. The LbL-PANi/MWNT films consist of a nanoscale interpenetrating network structure with well developed nanopores that yield excellent electrochemical performance for energy storage applications. These LbL-PANi/MWNT films in lithium cell can store high volumetric capacitance (∼238 ± 32 F/cm3) and high volumetric capacity (∼210 mAh/cm3). In addition, rate-dependent galvanostatic tests show LbL-PANi/MWNT films can deliver both high power and high energy density (∼220 Wh/Lelectrode at ∼100 kW/L electrode) and could be promising positive electrode materials for thin film microbatteries or electrochemical capacitors.

AB - Thin film electrodes of polyaniline (PANi) nanofibers and functionalized multiwall carbon nanotubes (MWNTs) are created by layer-by-layer (LbL) assembly for microbatteries or -electrochemical capacitors. Highly stable cationic PANi nanofibers, synthesized from the rapid aqueous phase polymerization of aniline, are assembled with carboxylic acid functionalized MWNT into LbL films. The pH-dependent surface charge of PANi nanofibers and MWNTs allows the system to behave like weak polyelectrolytes with controllable LbL film thickness and morphology by varying the number of bilayers. The LbL-PANi/MWNT films consist of a nanoscale interpenetrating network structure with well developed nanopores that yield excellent electrochemical performance for energy storage applications. These LbL-PANi/MWNT films in lithium cell can store high volumetric capacitance (∼238 ± 32 F/cm3) and high volumetric capacity (∼210 mAh/cm3). In addition, rate-dependent galvanostatic tests show LbL-PANi/MWNT films can deliver both high power and high energy density (∼220 Wh/Lelectrode at ∼100 kW/L electrode) and could be promising positive electrode materials for thin film microbatteries or electrochemical capacitors.

KW - carbon nanotubes

KW - electrochemical capacitors

KW - layer-by-layer assembly

KW - lithium-ion batteries

KW - nanostructured electrodes

KW - polyaniline

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Layer-by-layer assembled polyaniline nanofiber/multiwall carbon nanotube thin film electrodes for high-power and high-energy storage applications

Abstract

Keywords

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