Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system
In the field of nonferrous metal extraction and wastewater treatment, novel electrode materials have been known as the “heart” of the whole electrochemical innovation process. It can be seen that they play a key innovative role in this process. In this study, the catalytic activity of the novel poly...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722007119 |
| _version_ | 1811225183009112064 |
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| author | Guanzhong Wang Renchun Fu Xi Li Zhigang Jia Jingkun Qu |
| author_facet | Guanzhong Wang Renchun Fu Xi Li Zhigang Jia Jingkun Qu |
| author_sort | Guanzhong Wang |
| collection | DOAJ |
| description | In the field of nonferrous metal extraction and wastewater treatment, novel electrode materials have been known as the “heart” of the whole electrochemical innovation process. It can be seen that they play a key innovative role in this process. In this study, the catalytic activity of the novel polyaniline composite electrode material prepared in the laboratory will be comprehensively evaluated, its stability and failure mechanism will be appraised, the mechanism of electrode failure will be described, the ways to improve electrode performance will be put forward, and the superior working performance of the Ti/SnO2-Sb2O5-PANI (9%) electrode material different from the traditional precious metal electrode material will be deeply explored. The research results mainly show that Ti/SnO 2-Sb2O5-PANI (9%) electrode has good stability and can run stably for 186 h when used as anode in electrolysis experiment, while Ti/SnO 2-Sb2O5 electrode has stable operation time of only 114 h. Its failure is mainly caused by the dissolution and falling off of surface coating. In addition, it shows high electrocatalytic activity, low cell voltage of 2.258 V and high current efficiency of 85 ∼ 96% during cobalt electrodeposition experiment. |
| first_indexed | 2024-04-12T09:01:20Z |
| format | Article |
| id | doaj.art-49a36b130524487796a674f4fb3a9259 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-12T09:01:20Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-49a36b130524487796a674f4fb3a92592022-12-22T03:39:13ZengElsevierEnergy Reports2352-48472022-09-018754768Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride systemGuanzhong Wang0Renchun Fu1Xi Li2Zhigang Jia3Jingkun Qu4Faculty of Science, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Science, Kunming University of Science and Technology, Kunming 650500, China; Corresponding author.Faculty of Science, Kunming University of Science and Technology, Kunming 650500, ChinaTaiyuan Xinghualing No. 8 Middle School, Taiyuan 030009, ChinaTechgart (Beijing) Engineering Ltd., Beijing 100022, ChinaIn the field of nonferrous metal extraction and wastewater treatment, novel electrode materials have been known as the “heart” of the whole electrochemical innovation process. It can be seen that they play a key innovative role in this process. In this study, the catalytic activity of the novel polyaniline composite electrode material prepared in the laboratory will be comprehensively evaluated, its stability and failure mechanism will be appraised, the mechanism of electrode failure will be described, the ways to improve electrode performance will be put forward, and the superior working performance of the Ti/SnO2-Sb2O5-PANI (9%) electrode material different from the traditional precious metal electrode material will be deeply explored. The research results mainly show that Ti/SnO 2-Sb2O5-PANI (9%) electrode has good stability and can run stably for 186 h when used as anode in electrolysis experiment, while Ti/SnO 2-Sb2O5 electrode has stable operation time of only 114 h. Its failure is mainly caused by the dissolution and falling off of surface coating. In addition, it shows high electrocatalytic activity, low cell voltage of 2.258 V and high current efficiency of 85 ∼ 96% during cobalt electrodeposition experiment.http://www.sciencedirect.com/science/article/pii/S2352484722007119Novel electrode materialsPolyaniline composite electrodeCatalytic activityStabilityFailure mechanism |
| spellingShingle | Guanzhong Wang Renchun Fu Xi Li Zhigang Jia Jingkun Qu Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system Energy Reports Novel electrode materials Polyaniline composite electrode Catalytic activity Stability Failure mechanism |
| title | Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| title_full | Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| title_fullStr | Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| title_full_unstemmed | Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| title_short | Study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| title_sort | study on the anode stability of polyaniline with its pyrolysis products as electroactive components and the experimental study of cobalt electrowinning in chloride system |
| topic | Novel electrode materials Polyaniline composite electrode Catalytic activity Stability Failure mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722007119 |
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