High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite
The synthesis of the tungsten(VI) oxide iodide/poly-2-amino-1-mercaptobenzene nanoporous composite (W(VI)OI/P2AMB-NP composite) follows a two-step process. Initially, 2-amino-1-mercaptobenzene undergoes oxidative polymerization using iodine as the oxidant, followed by a double replacement reaction w...
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De Gruyter
2025-07-01
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| Series: | Green Processing and Synthesis |
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| Online Access: | https://doi.org/10.1515/gps-2025-0032 |
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| author | AbdEl-Salam Ahmed H. Ewais Hassan A. Rabia Mohamed Liu Min El-bendary Mohamed M. |
| author_facet | AbdEl-Salam Ahmed H. Ewais Hassan A. Rabia Mohamed Liu Min El-bendary Mohamed M. |
| author_sort | AbdEl-Salam Ahmed H. |
| collection | DOAJ |
| description | The synthesis of the tungsten(VI) oxide iodide/poly-2-amino-1-mercaptobenzene nanoporous composite (W(VI)OI/P2AMB-NP composite) follows a two-step process. Initially, 2-amino-1-mercaptobenzene undergoes oxidative polymerization using iodine as the oxidant, followed by a double replacement reaction with Na2WO6. This process leads to the formation of a unique composite structure, where nanoparticles ranging from 15 to 20 nm aggregate into larger secondary particles exceeding 500 nm and further assemble into micrometer-scale clusters (>1 µm). X-ray diffraction analysis confirms the high crystallinity and semiconducting nature of the composite, revealing a remarkably small crystalline size of ∼59 nm. This well-defined nanostructure contributes significantly to its charge storage performance. Electrochemical characterization was carried out using a three-electrode system, where the W(VI)OI/P2AMB-NP composite exhibited a high specific capacitance (C
s) of 200 F·g−1 at a current density of 1.0 A·g−1. Additionally, the material demonstrated an impressive energy density of 49.9 Wh·kg−1, indicating its strong potential as an advanced pseudocapacitor electrode. Beyond its electrochemical efficiency, this composite is cost-effectiveness and amenable to scalable synthesis, supporting its suitability for commercial applications. Long-term cycling stability tests revealed excellent durability, with 99.1% capacitance retention after 1,000 charge–discharge cycles. These attributes position the W(VI)OI/P2AMB-NP composite as a highly promising candidate for next-generation energy storage systems, offering a compelling combination of performance, stability, and economic viability. |
| format | Article |
| id | doaj-art-4fff911dc1c54a809ef11960849da065 |
| institution | Kabale University |
| issn | 2191-9550 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj-art-4fff911dc1c54a809ef11960849da0652025-08-20T03:34:31ZengDe GruyterGreen Processing and Synthesis2191-95502025-07-0114111710.1515/gps-2025-0032High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) compositeAbdEl-Salam Ahmed H.0Ewais Hassan A.1Rabia Mohamed2Liu Min3El-bendary Mohamed M.4Chemistry Department, College of Science, University of Jeddah, Jeddah, Saudi ArabiaChemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box. 80200, Jeddah, 21589, Saudi ArabiaNanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, EgyptSchool of Physics, Central South University, Changsha, 410075, ChinaChemistry Department, College of Science, University of Jeddah, Jeddah, Saudi ArabiaThe synthesis of the tungsten(VI) oxide iodide/poly-2-amino-1-mercaptobenzene nanoporous composite (W(VI)OI/P2AMB-NP composite) follows a two-step process. Initially, 2-amino-1-mercaptobenzene undergoes oxidative polymerization using iodine as the oxidant, followed by a double replacement reaction with Na2WO6. This process leads to the formation of a unique composite structure, where nanoparticles ranging from 15 to 20 nm aggregate into larger secondary particles exceeding 500 nm and further assemble into micrometer-scale clusters (>1 µm). X-ray diffraction analysis confirms the high crystallinity and semiconducting nature of the composite, revealing a remarkably small crystalline size of ∼59 nm. This well-defined nanostructure contributes significantly to its charge storage performance. Electrochemical characterization was carried out using a three-electrode system, where the W(VI)OI/P2AMB-NP composite exhibited a high specific capacitance (C s) of 200 F·g−1 at a current density of 1.0 A·g−1. Additionally, the material demonstrated an impressive energy density of 49.9 Wh·kg−1, indicating its strong potential as an advanced pseudocapacitor electrode. Beyond its electrochemical efficiency, this composite is cost-effectiveness and amenable to scalable synthesis, supporting its suitability for commercial applications. Long-term cycling stability tests revealed excellent durability, with 99.1% capacitance retention after 1,000 charge–discharge cycles. These attributes position the W(VI)OI/P2AMB-NP composite as a highly promising candidate for next-generation energy storage systems, offering a compelling combination of performance, stability, and economic viability.https://doi.org/10.1515/gps-2025-0032energy densitytungsten(vi) oxide iodidepoly-2-amino-1-mercaptobenzenecompositepseudosupercapacitor |
| spellingShingle | AbdEl-Salam Ahmed H. Ewais Hassan A. Rabia Mohamed Liu Min El-bendary Mohamed M. High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite Green Processing and Synthesis energy density tungsten(vi) oxide iodide poly-2-amino-1-mercaptobenzene composite pseudosupercapacitor |
| title | High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite |
| title_full | High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite |
| title_fullStr | High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite |
| title_full_unstemmed | High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite |
| title_short | High energy density pseudocapacitor based on a nanoporous tungsten(VI) oxide iodide/poly(2-amino-1-mercaptobenzene) composite |
| title_sort | high energy density pseudocapacitor based on a nanoporous tungsten vi oxide iodide poly 2 amino 1 mercaptobenzene composite |
| topic | energy density tungsten(vi) oxide iodide poly-2-amino-1-mercaptobenzene composite pseudosupercapacitor |
| url | https://doi.org/10.1515/gps-2025-0032 |
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