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Issue 31, 2014
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Aligned carbon nanotube/copper sheets: a new electrocatalyst for CO2 reduction to hydrocarbons

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Abstract

We controlled the morphologies of copper (Cu) nanostructure on aligned carbon nanotube (CNT) sheets, influencing the efficiency of the electrocatalytic reduction of CO2. Functionalized CNT sheets affected the pulsed electrodeposition of copper in terms of 3D growth, bonding, and electrochemical activity. CNT/Cu sheet electrocatalyst shows high performance in electrochemical reduction of CO2 to hydrocarbons at room temperature and atmospheric pressure. Reduction products were carbon monoxide (CO), methane (CH4), and ethylene (C2H4) gases. Carbon monoxide yields (178 μmol cm2 mA−1 h−1) and methane yields (346 μmol cm2 mA−1 h−1) at oxygen-plasma-treated CNT/Cu sheet electrodes were remarkably higher than other CNT/Cu and CNT sheets. Experimental results also show 3D morphology of copper growth on CNT sheets may play a critical role in hydrocarbon products from CO2.

Graphical abstract: Aligned carbon nanotube/copper sheets: a new electrocatalyst for CO2 reduction to hydrocarbons

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Publication details

The article was received on 21 Jan 2014, accepted on 03 Mar 2014 and first published on 13 Mar 2014


Article type: Paper
DOI: 10.1039/C4RA00618F
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2014,4, 16362-16367
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    Aligned carbon nanotube/copper sheets: a new electrocatalyst for CO2 reduction to hydrocarbons

    Y. Koo, R. Malik, N. Alvarez, L. White, V. N. Shanov, M. Schulz, B. Collins, J. Sankar and Y. Yun, RSC Adv., 2014, 4, 16362
    DOI: 10.1039/C4RA00618F

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