Journal
CHEMICAL PHYSICS LETTERS
Volume 794, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2022.139492
Keywords
Molybdenum disulfide; Ambient plasma; Electrolysis; Hydrogen evolution reaction; Oxygen evolution reaction
Funding
- Basic Science Research Program through the National Research Foundation of Korea [NRF-2020R1I1A3A04037469]
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Molybdenum disulfide (MoS2) modified with ambient solution plasma shows improved performance in hydrogen and oxygen evolution reactions (HER and OER). The modified MoS2 exhibits low overpotential and Tafel slope, attributed to increased surface area and reduced impedance. Time-dependent plasma treatment also affects the modification, with the optimal time of 90 minutes showing better performance in HER and OER.
Molybdenum disulfide (MoS2) is modified by using ambient solution plasma for hydrogen and oxygen evolution reactions (HER and OER). The modified MoS2 exhibits low overpotential of -0.18 V at -10 mAcm(-2) for HER and 1.40 V at 10 mAcm(-2) for OER with Tafel slope of 95 and 65 mVdec(-1), respectively. The improved HER and OER performance is attributed to increased electrochemical active surface area and reduced impedance compared to precursor MoS2. The effect of time dependent plasma treatment on MoS2 is also investigated, indicating that the optimal time (90 min) shows better HER and OER performance.
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