Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications
Abstract This study introduces a high-performance electrode coated with MnOx compounds to enhance the HER reaction. The active and precipitated MnOx species facilitate interconnected electron transport throughout the Ti electrodes. The tailored MnOx electrodes exhibited a significant reduction in Rc...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Materials for Renewable and Sustainable Energy |
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| Online Access: | https://doi.org/10.1007/s40243-024-00290-7 |
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| author | Hashem Tayeba Roya Kiani-Anbouhi Neda Royaei |
| author_facet | Hashem Tayeba Roya Kiani-Anbouhi Neda Royaei |
| author_sort | Hashem Tayeba |
| collection | DOAJ |
| description | Abstract This study introduces a high-performance electrode coated with MnOx compounds to enhance the HER reaction. The active and precipitated MnOx species facilitate interconnected electron transport throughout the Ti electrodes. The tailored MnOx electrodes exhibited a significant reduction in Rct (69.7%), superior Cdl (31.6%), and a notably lower Nyquist ring compared to traditional Ti electrodes, confirming their excellent electrocatalytic performance in Cl− and NaCl production. Additionally, LSV and PDP analysis demonstrated that the MnOx electrodes achieved a 53.9% decrease in Tafel slopes (from 139 mV/decade to 64 mV/decade), lower activity potentials, and robust corrosion resistance (99.4%), indicating faster kinetics and higher efficiency. High-resolution FESEM and contact angle images revealed that the MnOx electrodes possess uniform porous networks and semi-super hydrophilic function, optimizing H2 release and expanding the interfacial area for electron transfer. Finally, the Ti electrodes with advanced MnOx coatings can serve as reliable, cost-effective, and efficient candidates for use as regenerating electrodes in electrocatalytic industries. Moreover, the novel MnOx/rGO composites are versatile materials used as catalysts in chemical reactions, effective electrodes in energy storage devices, sensitive gas sensors, and for water treatment to remove contaminants. |
| format | Article |
| id | doaj-art-74f71fc54fc64454b8b7d03cd509c9d3 |
| institution | Kabale University |
| issn | 2194-1459 2194-1467 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Materials for Renewable and Sustainable Energy |
| spelling | doaj-art-74f71fc54fc64454b8b7d03cd509c9d32025-08-20T03:53:32ZengSpringerOpenMaterials for Renewable and Sustainable Energy2194-14592194-14672025-01-0114111410.1007/s40243-024-00290-7Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applicationsHashem Tayeba0Roya Kiani-Anbouhi1Neda Royaei2Department of Chemistry, Faculty of Science, Imam Khomeini International UniversityDepartment of Chemistry, Faculty of Science, Imam Khomeini International UniversityNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute (NSTRI)Abstract This study introduces a high-performance electrode coated with MnOx compounds to enhance the HER reaction. The active and precipitated MnOx species facilitate interconnected electron transport throughout the Ti electrodes. The tailored MnOx electrodes exhibited a significant reduction in Rct (69.7%), superior Cdl (31.6%), and a notably lower Nyquist ring compared to traditional Ti electrodes, confirming their excellent electrocatalytic performance in Cl− and NaCl production. Additionally, LSV and PDP analysis demonstrated that the MnOx electrodes achieved a 53.9% decrease in Tafel slopes (from 139 mV/decade to 64 mV/decade), lower activity potentials, and robust corrosion resistance (99.4%), indicating faster kinetics and higher efficiency. High-resolution FESEM and contact angle images revealed that the MnOx electrodes possess uniform porous networks and semi-super hydrophilic function, optimizing H2 release and expanding the interfacial area for electron transfer. Finally, the Ti electrodes with advanced MnOx coatings can serve as reliable, cost-effective, and efficient candidates for use as regenerating electrodes in electrocatalytic industries. Moreover, the novel MnOx/rGO composites are versatile materials used as catalysts in chemical reactions, effective electrodes in energy storage devices, sensitive gas sensors, and for water treatment to remove contaminants.https://doi.org/10.1007/s40243-024-00290-7MnOx electrodeElectrocatalytic activityHER reaction |
| spellingShingle | Hashem Tayeba Roya Kiani-Anbouhi Neda Royaei Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications Materials for Renewable and Sustainable Energy MnOx electrode Electrocatalytic activity HER reaction |
| title | Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications |
| title_full | Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications |
| title_fullStr | Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications |
| title_full_unstemmed | Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications |
| title_short | Tailoring durable MnOx-based electrodes for high-performance electrocatalytic function for next-generation electrocatalysis applications |
| title_sort | tailoring durable mnox based electrodes for high performance electrocatalytic function for next generation electrocatalysis applications |
| topic | MnOx electrode Electrocatalytic activity HER reaction |
| url | https://doi.org/10.1007/s40243-024-00290-7 |
| work_keys_str_mv | AT hashemtayeba tailoringdurablemnoxbasedelectrodesforhighperformanceelectrocatalyticfunctionfornextgenerationelectrocatalysisapplications AT royakianianbouhi tailoringdurablemnoxbasedelectrodesforhighperformanceelectrocatalyticfunctionfornextgenerationelectrocatalysisapplications AT nedaroyaei tailoringdurablemnoxbasedelectrodesforhighperformanceelectrocatalyticfunctionfornextgenerationelectrocatalysisapplications |