期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 45, 期 12, 页码 18201-18211出版社
WILEY
DOI: 10.1002/er.7111
关键词
C-doped SnO2; hydrogen evolution reaction; photocathode; water splitting
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2019R1A5A8080290]
- Chung-Ang University
- National Research Foundation of Korea [2019R1A5A8080290] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study presents a promising approach for fabricating heterogeneous photoelectrocatalysts for overall water splitting, by designing carbon-doped SnO2 nanostructures coated on a MoS2/p-Si substrate. The C-doped SnO2/MoS2/p-Si material exhibited enhanced activity and stability in the hydrogen evolution reaction, with the carbon doping influencing the shape of the nanostructures. These findings highlight the potential for clean and sustainable energy resources through photoelectrochemical technologies.
Recently, the increase in the CO2 content in the Earth's atmosphere causes global warming and the rapid consumption of fossil fuel resources such as coal and oil. Therefore, effort is required to create clean and sustainable energy resources to address these environmental issues. In this context, hydrogen evolution from water splitting-based photoelectrochemical technologies plays a significant role as a zero CO2 emission fuel. Here, we design and prepare carbon-doped SnO2 nanostructures by a simple single-step thermal decomposition method and coated on a MoS2/p-Si substrate for hydrogen evolution by photoelectrochemical water splitting. The C-doped SnO2/MoS2/p-Si shows enhanced activity in the hydrogen evolution reaction, with an onset potential of -0.17 V at 2.73 mA/cm(2), and high stability for over 45 hours. In addition, the doping of carbon influences the shape of the nanostructures, inducing their transformation from cubical rods to polyhedral structures. This study provides a promising method for the fabrication of heterogeneous photoelectrocatalysts for overall water splitting.
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