Preparation of cobalt–manganese-modified lead dioxide anodes and the study of their electrochemical performance in electrowinning copper

Liu, Yuanyuan; Zhu, Wei; Chen, Zhe; Yu, Qiang; Hu, Qi; Zheng, Zhaoyi; Gui, Lai; Song, Yuzhu

doi:10.1016/j.ijhydene.2020.11.118

Cited by 20 publications

(3 citation statements)

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“…The anode was a b-PbO 2 intermediate layer, the cathode was a stainless steel cylinder. The electrodeposition was conducted under a constant-current power source of 5 mA cm À2 for 45 minutes, the temperature was 45 C. 24 Scanning electrochemical microscopy A diagram of the SECM instrument is shown in Fig. S1 (ESI †).…”

Section: Experiments and Methodsmentioning

confidence: 99%

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Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials

Chen

et al. 2021

RSC Adv.

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Section: Experiments and Methodsmentioning

confidence: 99%

“…The electrodeposition was conducted under a constant-current power source of 5 mA cm −2 for 45 minutes, the temperature was 45 °C. 24 …”

Section: Experiments and Methodsmentioning

confidence: 99%

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials

Chen

et al. 2021

RSC Adv.

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“…2 (d)) and 529.1 eV (Fig. 2 (e)) are ascribed to the lattice oxygen (O L ) [ 59 ], the peaks of 530.9 eV (Fig. 2 (d)) and 530.6 eV (Fig.…”

Section: Resultsmentioning

confidence: 99%

Y-mediated optimization of 3DG-PbO2 anode for electrochemical degradation of PFOS

Duan,

Ning,

Wang

et al. 2023

BMC Chemistry

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In our previous study, the three-dimensional graphene-modified PbO2 (3DG-PbO2) anode was prepared for the effective degradation of perfluorooctanesulfonat (PFOS) by the electrochemical oxidation process. However, the mineralization efficiency of PFOS at the 3DG-PbO2 anode still needs to be further improved due to the recalcitrance of PFOS. Thus, in this study, the yttrium (Y) was doped into the 3DG-PbO2 film to further improve the electrochemical activity of the PbO2 anode. To optimize the doping amount of Y, three Y and 3DG codoped PbO2 anodes were fabricated with different Y3+ concentrations of 5, 15, and 30 mM in the electroplating solution, which were named Y/3DG-PbO2-5, Y/3DG-PbO2-15 and Y/3DG-PbO2-30, respectively. The results of morphological, structural, and electrochemical characterization revealed that doping Y into the 3DG-PbO2 anode further refined the β-PbO2 crystals, increased the oxygen evolution overpotential and active sites, and reduced the electron transfer resistance, resulting in a superior electrocatalytic activity. Among all the prepared anodes, the Y/3DG-PbO2-15 anode exhibited the best activity for electrochemical oxidation of PFOS. After 120 min of electrolysis, the TOC removal efficiency was 80.89% with Y/3DG-PbO2-15 anode, greatly higher than 69.13% with 3DG-PbO2 anode. In addition, the effect of operating parameters on PFOS removal was analyzed by response surface, and the obtained optimum values of current density, initial PFOS concentration, pH, and Na2SO4 concentration were 50 mA/cm2, 12.21 mg/L, 5.39, and 0.01 M, respectively. Under the optimal conditions, the PFOS removal efficiency reached up to 97.16% after 40 min of electrolysis. The results of the present study confirmed that the Y/3DG-PbO2 was a promising anode for electrocatalytic oxidation of persistent organic pollutants.

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Roles and influencing mechanisms of Fe2+ and Lix984 in copper electrodeposition

Zhong,

Lin,

Sheng

et al. 2024

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Preparation of cobalt–manganese-modified lead dioxide anodes and the study of their electrochemical performance in electrowinning copper

Cited by 20 publications

References 39 publications

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials

Y-mediated optimization of 3DG-PbO2 anode for electrochemical degradation of PFOS

Roles and influencing mechanisms of Fe2+ and Lix984 in copper electrodeposition

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Preparation of cobalt–manganese-modified lead dioxide anodes and the study of their electrochemical performance in electrowinning copper

Cited by 20 publications

References 39 publications

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO2 electrode materials

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO2 electrode materials

Y-mediated optimization of 3DG-PbO2 anode for electrochemical degradation of PFOS

Roles and influencing mechanisms of Fe2+ and Lix984 in copper electrodeposition

Contact Info

Product

Resources

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Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials

Micro-area investigation on electrochemical performance improvement with Co and Mn doping in PbO₂ electrode materials