Growth of Carbon Nanotubes on Graphene as Efficient Air-Cathode for Highly H₂O₂ -Producing Microbial Fuel Cell

Abstract

An efficient highly conductive three-dimensional (3D) air-cathode manufactured by growth of carbon nanotubes (CNTs) on graphene sheets (GNS) for the improvement of H2O2-producing microbial fuel cell (MFC) is reported. 3D architectured GNS-CNTs hybrid as air-cathode allows for an enhanced production rates of H2O2 within its hierarchical porous structure. Correspondingly, the resulted GNS-CNTs hybrid showed adjustable electrochemical performance as an MFC air-cathode. Importantly, different electron transfer efficiencies on GNS-CNTs hybrid air-cathode result in different electric charge distributions, which affects its molecular spatial arrangement and three-dimensional conformation. The nanostructure enhances the air-cathode interaction and electron transfer rate. This work paves a feasible pathway to prepare carbon nanomaterials with favorable 3D architecture and high performance, for use in MFC and energy conversion.

Meeting Name

11th Annual TechConnect World Innovation Conference and Expo, held jointly with the 20th Annual Nanotech Conference and Expo, the 2018 SBIR/STTR Spring Innovation Conference, and the Defense TechConnect DTC Spring Conference (2018: May 13-16, Anaheim, CA)

Department(s)

Chemistry

Keywords and Phrases

Degradation; GNS-CNTs; Hydrogen peroxide; Microbial fuel cell

International Standard Book Number (ISBN)

978-099887823-2

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 TechConnect, All rights reserved.

Publication Date

01 May 2018

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