Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 10, Issue 39, Pages 20761-20769Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ta02955c
Keywords
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Funding
- National Natural Science Foundation of China [52002294, 51974208, U2003130]
- Key Research and Development Program of Hubei Province [2021BAA208]
- Outstanding Youth Foundation of Natural Science Foundation of Hubei Province [2020CFA099]
- Knowledge Innovation Program of Wuhan-Shuguang Project [2022010801020364]
- Graduate Innovative Fund of Wuhan Institute of Technology [CX2021194]
- City University of Hong Kong Strategic Research Grant (SRG) [7005505]
- Shenzhen -Hong Kong Innovative Collaborative Research and Development Program [SGLH20181109110802117, CityU 9240014]
- City University of Hong Kong Donation Research Grant [DON-RMG 9229021]
- Young Top-notch Talent Cultivation Program of Hubei Province
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In this study, a new method combining the methanol oxidation reaction (MOR) and the hydrogen evolution reaction (HER) was introduced to achieve energy-saving hydrogen production. By using a bifunctional electrocatalyst with a NiSe/MoSe2 heterointerface on carbon cloth, high efficiency and stability in hydrogen production can be achieved. This approach shows great potential for sustainable energy generation.
Electrochemical water splitting is a desirable technique to produce hydrogen to replace fossil fuels for sustainable energy generation. However, efficient hydrogen production suffers from a sluggish oxygen evolution reaction (OER) and expensive electrocatalysts. Herein, the methanol oxidation reaction (MOR) is combined with the hydrogen evolution reaction (HER) to achieve energy-saving hydrogen production. The HER and MOR are co-catalyzed by a bifunctional electrocatalyst containing a NiSe/MoSe2 heterointerface on carbon cloth (NMS/CC). The electronic structure rearrangement and charge transfer at the heterointerface are investigated experimentally and theoretically. The NMS/CC electrocatalyst has outstanding MOR properties requiring a smaller potential and Tafel slope than those of the OER as well as high efficiency and stability. Energy-saving hydrogen production by the combined MOR/HER configuration can be powered by a solar cell with an output voltage of 1.5 V. The results reveal the excellent prospect of this novel strategy for zero-carbon-emission energy generation and provide insights into the coordination of electrosynthesis and electrocatalysis.
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