Electron Conductive and Proton Permeable Vertically Aligned Carbon Nanotube Membranes

We report the fabrication of membranes hundreds of micrometers thick that demonstrate efficient electron conduction and proton transport through vertically aligned arrays of multiwalled carbon nanotubes (NTs) impregnated by epoxy. Electrical transport was Ohmic with a conductivity of 495 mS cm–1. Pr...

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Bibliographic Details
Published in:Nano letters 2014-04, Vol.14 (4), p.1728-1733
Main Authors: Pilgrim, Gregory A, Leadbetter, Joanne W, Qiu, Fen, Siitonen, Anni J, Pilgrim, Steven M, Krauss, Todd D
Format: Article
Language:English
Subjects:
Alignment
Arrays
Carbon nanotubes
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
Materials science
Membranes
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanotubes
New technology
Physics
Resistivity
Robustness
Transport
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Summary:We report the fabrication of membranes hundreds of micrometers thick that demonstrate efficient electron conduction and proton transport through vertically aligned arrays of multiwalled carbon nanotubes (NTs) impregnated by epoxy. Electrical transport was Ohmic with a conductivity of 495 mS cm–1. Protons traversed the membrane through the NT bore with a current of 5.84 × 10–6 A. Good electron and proton transport, chemical robustness, and simple fabrication suggest NT membranes have potential in artificial photosynthesis applications.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl403696y