Journal
CHEMICAL ENGINEERING JOURNAL
Volume 276, Issue -, Pages 322-330Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.04.091
Keywords
Microbial biomass; Hydrothermal carbonization; Carbon-based microtubes; Non-metal electrocatalytic
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Funding
- National Natural Science Foundation of China [21071102, 91126013, 21371124]
- National Natural Science Foundation of China
- China Academy of Engineering Physics (NSAF) [U1330125]
- National Fund of China for Fostering Talents in Basic Science [J1210004]
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Streptomyces sporoverrucosus dwc-3, a type of microbial biomass was used to prepare carbon-based microtubes (CMTs) due to their natural micro-tubular structure. After low temperature hydrothermal carbonization at 180 degrees C, CMTs with a diameter of 400-500 nm and a wall thickness of about 50 nm was obtained. It was demonstrated that the intrinsic biologic tissue of the soft biomass could also be well inherited during the formation process of CMTs. Electrochemical evaluations in 0.5 M Na2SO4 + 0.1 M H2SO4 solution at room temperature showed that the prepared CMTs exhibited high electrocatalytic activity for hydrogen evolution reaction. The significant outcomes in this work showed a novel approach to fabricate CMTs that can be used as non-metal electrocatalysts for hydrogen evolution reaction by using low temperature hydrothermal carbonization method. (C) 2015 Elsevier B.V. All rights reserved.
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