- Title
- Coupling 0D and 1D carbons for electrochemical hydrogen production promoted by a percolation mechanism
- Creator
- Dou, Zhi; Du, Na; Liu, Xue; Wu, Qiuhua; Wu, Qiong; Fu, Yang; Zhang, Guolin; Ma, Tianyi
- Relation
- ChemSusChem Vol. 13, Issue 16, p. 4094-4102
- Publisher Link
- http://dx.doi.org/10.1002/cssc.202001227
- Publisher
- Wiley
- Resource Type
- journal article
- Date
- 2020
- Description
- Developing hydrogen evolution reaction (HER) electrocatalysts with high activity, durability and moderate price is essential for sustainable hydrogen energy utilization. Here, the facile coupling of carbon dots (CDs, 0D carbon materials) and carbon fibres (CFs, 1D carbon materials) for enhanced electrochemical hydrogen production was demonstrated. Electrochemical tests revealed that the CD/CF catalysts showed outstanding catalytic activity with a small overpotential of 280 mV at the current density of 10 mA cm<,sup>-2, a small Tafel slope of 87 mV dec-1 and prominent durability. Percolation theory was for the first time introduced to interpret the catalytic mechanism of the CD/CF catalysts. The special morphology assembled by the 0D carbons constituted the percolating clusters and promoted electron transport throughout the 1D carbons. The strategy and theory can be adapted to general electrocatalytic applications for achieving and interpreting precise tuning on highly efficient electron transfer in electrocatalysts.
- Subject
- electrochemical; carbon dots; carbon fibres; catalytic mechanism; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1431185
- Identifier
- uon:38932
- Identifier
- ISSN:1864-5631
- Rights
- This is the peer reviewed version of the following article: Dou, Zhi; Du, Na; Liu, Xue; Wu, Qiuhua; Wu, Qiong; Fu, Yang; Zhang, Guolin; Ma, Tianyi. “Coupling 0D and 1D carbons for electrochemical hydrogen production promoted by a percolation mechanism”. ChemSusChem Vol. 13, Issue 16, p. 4094-4102 (2020), which has been published in final form at http://dx.doi.org/10.1002/cssc.202001227. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
- Language
- eng
- Full Text
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