期刊
RENEWABLE ENERGY
卷 168, 期 -, 页码 668-675出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.12.070
关键词
Hydrogen; Hydrogen evolution reaction; Ruthenium; Carbon nitride; Photocatalysis
资金
- Federal Ministry of Education and Research of Germany [033RC003]
- International Postdoc Initiative (IPODI) of the European Union
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC 2008-390540038]
- Spanish MINECO [CTQ2015-64261-R]
- MICINN [PID2019-104171RB-I00]
- Universitat Autonoma de Barcelona
In this study, Ru(0) nanoparticles were stabilized onto different carbon nanomaterials for photocatalytic hydrogen evolution reaction, resulting in significant enhancement of HER activity when mixed with mesoporous graphitic carbon nitride. The hybrid materials showed outstanding performance compared to pristine materials and a detailed investigation on the fate of nanohybrids after catalysis was presented.
Development of competent and cost-effective materials for hydrogen evolution reaction (HER) has been attracting great attention since hydrogen is hailed as a promising environmentally friendly energy source to reduce the greenhouse emissions. Herein, Ru(0) nanoparticles (RuNPs) have been stabilized onto the surface of four different conducting carbon nanomaterials (CNMs) from 0D to 3D, such as 0D carbon nanohorns (CNH), 1D single-walled carbon nanotubes (CNTs), 2D reduced graphene oxide (rGO) and 3D graphite (GP), for their use in the photocatalytic HER. For this aim, the resulting RuNP@CNMs where physically mixed with mesoporous graphitic carbon nitride (mpg-CN) in an optimum composition ratio to maximize the photocatalytic HER activity. Notably, the resulting four hybrid RuNPs@CNM/mpg-CN materials showed an outstanding increase in the hydrogen evolution reaction (HER) when compared with the pristine mesoporous graphitic carbon nitride without co-catalyst. A comparison on the photocatalytic activity of the four hybrid RuNPs@CNMs physically mixed with mpg-CN and a deep study on the fate of the nanohybrids after catalysis are presented. (c) 2020 Elsevier Ltd. All rights reserved.
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