Effect of heat-treatment atmosphere on the current generation of TiO2 nanotube array electrodes in microbial fuel cells

Lijie Huang; Xueqing Zhang; Dongsheng Shen; Na Li; Zhipeng Ge; Yuyang Zhou; Mengjiao Zhou; Huajun Feng; Kun Guo

doi:10.1016/j.electacta.2017.10.068

Effect of heat-treatment atmosphere on the current generation of TiO₂ nanotube array electrodes in microbial fuel cells

Lijie Huang
, Xueqing Zhang
, Dongsheng Shen
, Na Li
, Zhipeng Ge
, Yuyang Zhou
, Mengjiao Zhou
, Huajun Feng
, Kun Guo

Zhejiang Gongshang University
Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling
University of Queensland
Ghent University

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

12 Scopus citations

Abstract

We investigated the effects of the heat-treatment atmosphere on the current generation of Ti electrodes in microbial fuel cells (MFCs). The maximum current density was achieved for TiO₂ nanotube array electrodes heated in H₂ (TNA-H₂) (22.69 ± 0.18 A m⁻²). Physical analysis of the Ti electrode surfaces revealed that the specific surface area increased after electrochemical anodization. The crystallinities of the TiO₂ nanotube array electrodes heated in H₂ (81.66%), CH₄ (74.48%), N₂ (59.67%), and O₂ (44.82%) showed a significant positive correlation with the corresponding current densities (P < 0.05, R² = 0.9469). In addition, the highest electron transfer rate constant was achieved for TNA-H₂ (2.38 s⁻¹). The large specific surface area, good chemical stability, high electron transfer rate, and good biocompatibility of TNA-H₂ suggest its great potential for application as an anode system in MFCs.

Original language	English
Pages (from-to)	203-209
Number of pages	7
Journal	Electrochimica Acta
Volume	257
DOIs	https://doi.org/10.1016/j.electacta.2017.10.068
State	Published - 10 Dec 2017
Externally published	Yes

Keywords

Crystallinity
Current density
Electron transfer rate
Gas atmosphere
TiO nanotube arrays

Access to Document

10.1016/j.electacta.2017.10.068

Cite this

@article{9b7888284a3749d28e8f0518f267eb08,

title = "Effect of heat-treatment atmosphere on the current generation of TiO2 nanotube array electrodes in microbial fuel cells",

abstract = "We investigated the effects of the heat-treatment atmosphere on the current generation of Ti electrodes in microbial fuel cells (MFCs). The maximum current density was achieved for TiO2 nanotube array electrodes heated in H2 (TNA-H2) (22.69 ± 0.18 A m−2). Physical analysis of the Ti electrode surfaces revealed that the specific surface area increased after electrochemical anodization. The crystallinities of the TiO2 nanotube array electrodes heated in H2 (81.66\%), CH4 (74.48\%), N2 (59.67\%), and O2 (44.82\%) showed a significant positive correlation with the corresponding current densities (P < 0.05, R2 = 0.9469). In addition, the highest electron transfer rate constant was achieved for TNA-H2 (2.38 s−1). The large specific surface area, good chemical stability, high electron transfer rate, and good biocompatibility of TNA-H2 suggest its great potential for application as an anode system in MFCs.",

keywords = "Crystallinity, Current density, Electron transfer rate, Gas atmosphere, TiO nanotube arrays",

author = "Lijie Huang and Xueqing Zhang and Dongsheng Shen and Na Li and Zhipeng Ge and Yuyang Zhou and Mengjiao Zhou and Huajun Feng and Kun Guo",

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

year = "2017",

month = dec,

day = "10",

doi = "10.1016/j.electacta.2017.10.068",

language = "英语",

volume = "257",

pages = "203--209",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of heat-treatment atmosphere on the current generation of TiO2 nanotube array electrodes in microbial fuel cells

AU - Huang, Lijie

AU - Zhang, Xueqing

AU - Shen, Dongsheng

AU - Li, Na

AU - Ge, Zhipeng

AU - Zhou, Yuyang

AU - Zhou, Mengjiao

AU - Feng, Huajun

AU - Guo, Kun

PY - 2017/12/10

Y1 - 2017/12/10

N2 - We investigated the effects of the heat-treatment atmosphere on the current generation of Ti electrodes in microbial fuel cells (MFCs). The maximum current density was achieved for TiO2 nanotube array electrodes heated in H2 (TNA-H2) (22.69 ± 0.18 A m−2). Physical analysis of the Ti electrode surfaces revealed that the specific surface area increased after electrochemical anodization. The crystallinities of the TiO2 nanotube array electrodes heated in H2 (81.66%), CH4 (74.48%), N2 (59.67%), and O2 (44.82%) showed a significant positive correlation with the corresponding current densities (P < 0.05, R2 = 0.9469). In addition, the highest electron transfer rate constant was achieved for TNA-H2 (2.38 s−1). The large specific surface area, good chemical stability, high electron transfer rate, and good biocompatibility of TNA-H2 suggest its great potential for application as an anode system in MFCs.

AB - We investigated the effects of the heat-treatment atmosphere on the current generation of Ti electrodes in microbial fuel cells (MFCs). The maximum current density was achieved for TiO2 nanotube array electrodes heated in H2 (TNA-H2) (22.69 ± 0.18 A m−2). Physical analysis of the Ti electrode surfaces revealed that the specific surface area increased after electrochemical anodization. The crystallinities of the TiO2 nanotube array electrodes heated in H2 (81.66%), CH4 (74.48%), N2 (59.67%), and O2 (44.82%) showed a significant positive correlation with the corresponding current densities (P < 0.05, R2 = 0.9469). In addition, the highest electron transfer rate constant was achieved for TNA-H2 (2.38 s−1). The large specific surface area, good chemical stability, high electron transfer rate, and good biocompatibility of TNA-H2 suggest its great potential for application as an anode system in MFCs.

KW - Crystallinity

KW - Current density

KW - Electron transfer rate

KW - Gas atmosphere

KW - TiO nanotube arrays

UR - https://www.scopus.com/pages/publications/85031784627

U2 - 10.1016/j.electacta.2017.10.068

DO - 10.1016/j.electacta.2017.10.068

M3 - 文章

AN - SCOPUS:85031784627

SN - 0013-4686

VL - 257

SP - 203

EP - 209

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Effect of heat-treatment atmosphere on the current generation of TiO₂ nanotube array electrodes in microbial fuel cells

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this