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Modulation of MoS2@Ti electrode structure to improve electrode stability and enhance the efficiency of electrochemical reduction oxidized mercury

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Abstract

The electrode and MoS2@Ti electrochemical system were successfully optimized. However, there are problems such as easy flaking of catalytic layer and short electrode life. The use of electrode modifiers such as Nafion, Sodium dodecyl sulfate, or tin-antimony oxide interlayers attempts to optimize the bonding between the electrode substrate and the active layer. Moreover, we have successfully used foam titanium to replace the titanium plate substrate to improve the electrode stability. The adsorption reduction performance of MoS2@Ti electrodes and MoS2 powders was investigated to further clarify the mechanism of MoS2@Ti electrochemical system. The optimization of the MoS2@Ti electrode reaction system was attempted by designing the combined system as well as the diaphragm system, and the fact that the reduced mercury ions were re-oxidized in the original MoS2@Ti system was determined.

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Acknowledgements

This research is based upon work supported by the National Natural Science Foundation of China (Project No. 21307032), the Fundamental Research Funds for the Central Universities and the College Students' innovation and entrepreneurship training program (Project No. X202210251257). Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the supporting organizations.

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Authors and Affiliations

  1. School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China

    Limei Cao, Yan Du, Jie Yang, Xiaohan Li, Tiance Yang, Haochen Tong, Haifeng Yao, Chunqi He & Ji Yang

  2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People’s Republic of China

    Limei Cao & Ji Yang

Authors
  1. Limei Cao
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  2. Yan Du
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  3. Jie Yang
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  4. Xiaohan Li
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  5. Tiance Yang
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  6. Haochen Tong
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  7. Haifeng Yao
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  8. Chunqi He
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  9. Ji Yang
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Contributions

LC contributed to the corresponding author; Design of the work; Writing—review and editing; and Project administration. YD contributed to writing—original draft preparation, Data curation, and Validation. JY contributed to data curation; Conceptualization; Methodology; and Formal analysis. XL contributed to data curation and Methodology. TY contributed to investigation and Data curation. HT contributed to investigation. HY contributed to investigation. CH contributed to investigation. JY contributed to the corresponding author; Writing—review and editing; and Project administration.

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Correspondence to Limei Cao or Ji Yang.

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Cao, L., Du, Y., Yang, J. et al. Modulation of MoS2@Ti electrode structure to improve electrode stability and enhance the efficiency of electrochemical reduction oxidized mercury. Res Chem Intermed 49, 3395–3409 (2023). https://doi.org/10.1007/s11164-023-05052-0

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  • DOI: https://doi.org/10.1007/s11164-023-05052-0

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