Electronic regulation of MoS2 edge sites by d electron transfer of Ni or Co to improve the activity of CO sulfur-resistant methanation

Wang, Qiang; Huang, Weiwei; Li, Xin; Lin, Shuangxi; Li, Zhenhua; Ma, Xinbin

doi:10.1016/j.cej.2023.148242

Cited by 3 publications

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But there are also certain differences. The light absorption ability of V S -MoS 2 -3 has been improved in the 450–550 nm range, and the overall absorption intensity is also stronger than MoS 2 , indicating that the construction of S vacancies enhances the visible light absorption performance of MoS 2 to a certain extent . The transient photocurrent tests of MoS 2 and V S -MoS 2 -3 showed that the latter exhibited a much stronger photocurrent intensity than the former (Figure b).…”

Section: Resultsmentioning

confidence: 96%

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

Zhang,

Huang,

Xie

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

MoS 2 nanosheets with different concentrations of S vacancies (V S -MoS 2 ) were synthesized and used for photocatalytic nitrogen reduction reactions (pNRR), and the mechanism of S vacancies enhancing the activity of MoS 2 was explored through DFT calculation. The material characterization confirmed the successful construction of S vacancies at different concentrations on the spherical cluster structure of MoS 2 . The experimental results show that the introduction of S vacancies significantly improves the activity of pNRR, and it increases significantly with the increase of vacancy number, consistent with the trend of photoelectric performance. V S -MoS 2 -3 exhibits the highest pNRR efficiency, which is 3.5 times higher than that of pristine MoS 2 , and after being reused three times, the activity only decreased by about 11%. DFT calculation results indicate that the exposed Mo atoms generated by S vacancies alter the charge layout on the MoS 2 surface while providing abundant Mo active sites. Meanwhile, the band gap structure will narrow with the increase of S vacancies, which is beneficial for the transfer of surface charges. In addition, the increase of S vacancies, on the one hand, strengthens the adsorption of MoS 2 on N 2 , weakens the adsorption of H, improves the selectivity of nitrogen, and is conducive to the progress of NRR. On the other hand, more electrons can be transferred from MoS 2 to the adsorbed N 2 molecules, enhancing the hybridization between them and better activating N 2 .

show abstract

Section: Resultsmentioning

confidence: 96%

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

Zhang,

Huang,

Xie

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

DFT study on doping effect of different transition metals on MoS2 for enhancing the formation of S vacancies

Wang,

et al. 2024

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

A multifunctional MoS₂/Ni₉S₈/NF catalyst for synchronous desulfurization and hydrogen evolution by a self-driven system

Hao,

Jiang,

Liu

et al. 2024

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Electronic regulation of MoS2 edge sites by d electron transfer of Ni or Co to improve the activity of CO sulfur-resistant methanation

Cited by 3 publications

References 52 publications

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

DFT study on doping effect of different transition metals on MoS2 for enhancing the formation of S vacancies

A multifunctional MoS₂/Ni₉S₈/NF catalyst for synchronous desulfurization and hydrogen evolution by a self-driven system

Contact Info

Product

Resources

About

Electronic regulation of MoS2 edge sites by d electron transfer of Ni or Co to improve the activity of CO sulfur-resistant methanation

Cited by 3 publications

References 52 publications

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS2 Nanosheets with Polysulfide Vacancies

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS2 Nanosheets with Polysulfide Vacancies

DFT study on doping effect of different transition metals on MoS2 for enhancing the formation of S vacancies

A multifunctional MoS2/Ni9S8/NF catalyst for synchronous desulfurization and hydrogen evolution by a self-driven system

Contact Info

Product

Resources

About

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

A multifunctional MoS₂/Ni₉S₈/NF catalyst for synchronous desulfurization and hydrogen evolution by a self-driven system