C60-Adsorbed Single-Walled Carbon Nanotubes as Metal-Free, pH-Universal, and Multifunctional Catalysts for Oxygen Reduction, Oxygen Evolution, and Hydrogen Evolution

Buckminsterfullerene (C60) was adsorbed onto single-walled carbon nanotubes (SWCNTs) as an electron-acceptor to induce intermolecular charge-transfer with the SWCNTs, leading to a class of new metal-free C60-SWCNT electrocatalysts. For the first time, these newly developed C60-SWCNTs were demonstrat...

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Published inJournal of the American Chemical Society Vol. 141; no. 29; pp. 11658 - 11666
Main Authors Gao, Rui, Dai, Quanbin, Du, Feng, Yan, Dongpeng, Dai, Liming
Format Journal Article
LanguageEnglish
Published American Chemical Society 24.07.2019
Subjects
carbon nanotubes
catalysts
catalytic activity
electrochemistry
fullerene
hydrogen production
oxygen
oxygen production
platinum
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Summary:Buckminsterfullerene (C60) was adsorbed onto single-walled carbon nanotubes (SWCNTs) as an electron-acceptor to induce intermolecular charge-transfer with the SWCNTs, leading to a class of new metal-free C60-SWCNT electrocatalysts. For the first time, these newly developed C60-SWCNTs were demonstrated to act as trifunctional metal-free catalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) over a wide range of pH values, from acid to alkaline, with even higher electrocatalytic activities and better long-term stabilities than those of commercial Pt and RuO2 counterparts. Thus, the adsorption-induced intermolecular charge-transfer with the C60 electron-acceptor can provide a general approach to high-performance, metal-free, pH-universal carbon-based trifunctional metal-free electrocatalysts for water-splitting and beyond.
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ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/jacs.9b05006