Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 9, Issue 10, Pages 3079-3084Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ee02169g
Keywords
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Funding
- Ministry of Science and Technology of China [2016YFA0200102, 2016YFA0200101]
- National Natural Science Foundation of China [51532008, 51521091, 51272257, 51572264, 51372254]
- Chinese Academy of Sciences [KGZD-EW-T06]
- CAS/SAFEA International Partnership Program for Creative Research Teams
- Liaoning BaiQianWan Talents Program
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A flexible, large-area three-dimensional porous N-doped carbon microtube (NCMT) sponge was prepared via a simple and low-cost process of pyrolyzing facial cotton. Due to its unique structure with a micron-scale hollow core and well-graphitized and interconnected porous walls, the NCMT sponge exhibits incomparable electrocatalytic activity for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) with a small potential difference of 0.63 V between the OER current density at 10 mA cm(-2) and the ORR current density at -3 mA cm(-2), which is the best to date.
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