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🔋 Ammonium Ion Intercalation Enabled Stable 1T-VS2/WS2-Nb2CTx Heterostructures during Electrochemical Charge Storage

📝 درج یون آمونیوم در هتروساختار VS2/WS2-Nb2CTx، ذخیره‌سازی شارژ پایدار با ظرفیت ۲۱۷.۴۸ میلی‌آمپرساعت بر گرم و ابرخازن نامتقارن با انرژی ۵۴ وات‌ساعت بر کیلوگرم را ممکن می‌سازد.

📚 Journal: ACS Energy Letters #ACSEnergyLetters
📅 Date: 2026-10-15
🔬 Research Article

💡 Novelty & Significance:
The novelty lies in NH4+ intercalation into Nb2CTx MXene coupled with 1T-VS2/WS2 heterostructures, stabilizing electrodes against oxidative failure. Operando Raman and DFT reveal cation dehydration/rehydration and enhanced OH– adsorption. The resulting asymmetric supercapacitor achieves 54 Wh kg–1 with long-term stability, offering a promising strategy for durable, high-energy electrochemical storage.

🔗 10.1021/acsenergylett.6c01945

🏷 MXene · VS2/WS2 heterostructure · ammonium intercalation · supercapacitor · energy storage
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