Journal
CARBON
Volume 99, Issue -, Pages 599-606Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.12.088
Keywords
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Funding
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- National Basic Research Program of China (973 Program) [2012CB825803, 2013CB932702]
- National Natural Science Foundation of China [51422207, 51132006, 51572179, 21501126, 21471106]
- Specialized Research Fund for the Doctoral Program of Higher Education [20123201110018]
- Suzhou Planning Project of Science and Technology [ZXG2012028]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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We developed a facile hydrothermal method to fabricate the carbon quantum dots (CQDs)/MoS2 composite as hydrogen evolution reduction (HER) catalyst. After irradiation with visible light for 30 min, the CQDs/MoS2 composite (as CQDs/MoS2-L30) performed improved HER activity, featured by a small overpotential of similar to 0.125 V at 10 mA cm(-2), a high current density, a small Tafel slope of 45 mV/decade and a long term stability in 0.5 M H2SO4. This kind of activity improvement towards HER may be due to the high charge transfer efficiency, the decrease of S4+ and the increase of S-2(2-) and S2- after the light treatment. (C) 2015 Published by Elsevier Ltd.
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