Tuning electronegativity environment of asymmetric oxygen vacancies in Sb-SnO2 promotes electrofiltration oxidation at low potential

Li, Xuechuan; Lu, Sen; Zhou, Ting; Cheng, Yumeng; Zhou, Jia; Zhang, Guan

doi:10.1016/j.apcatb.2024.124325

Applied Catalysis B: Environment and Energy

2024

DOI: 10.1016/j.apcatb.2024.124325

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Tuning electronegativity environment of asymmetric oxygen vacancies in Sb-SnO2 promotes electrofiltration oxidation at low potential

Xuechuan Li,

Sen Lu,

Ting Zhou

et al.

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Interface Engineering of Thin‐Film Lithium Phosphorus Oxynitride Electrolyte by Appropriate Oxygen Plasma Treatment for Flexible All‐Solid‐State Supercapacitor

Wang,

Ma,

Liu

et al. 2024

Small Methods

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The interfacial incompatibility between lithium phosphorus oxynitride (LiPON) and anode greatly deteriorates the performance of thin‐film all‐solid‐state supercapacitors (ASSSCs). This article investigates oxygen plasma treatment to improve the interface. Through appropriate plasma treatment, a Li2O/Li3PO4 composite layer is formed by replacing nitrogen with oxygen at the LiPON surface owing to strong reactivity of oxygen plasma. This composite layer inherits the merits of both Li2O (including good mechanical strength and ultralow electrical conductivity) and Li3PO4 (including good chemical stability and relatively high ionic conductivity), and thus is quite desirable for service as a LiPON/anode buffer layer with excellent chemical and mechanical stability, high ionic conductivity and low electrical conductivity. Consequently, the corresponding plasma‐treated ASSSC displays much better electrochemical performance than the no‐treated one in terms of its higher specific capacitance (≈15.4 mF cm−2 at 0.5 µA cm−2), better cycling stability (≈95.1% of the retained capacity after 15 000 cycles) and lower self‐discharge rate (66.4% of the retained voltage after 20 h). The plasma‐treated one also shows both excellent flexible and electrochromic characteristics and demonstrates the ability of self‐adaptive temperature adjustment for smart window applications.

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Interface Engineering of Thin‐Film Lithium Phosphorus Oxynitride Electrolyte by Appropriate Oxygen Plasma Treatment for Flexible All‐Solid‐State Supercapacitor

Wang,

Ma,

Liu

et al. 2024

Small Methods

View full text Add to dashboard Cite

show abstract

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Tuning electronegativity environment of asymmetric oxygen vacancies in Sb-SnO2 promotes electrofiltration oxidation at low potential

Cited by 1 publication

References 57 publications

Interface Engineering of Thin‐Film Lithium Phosphorus Oxynitride Electrolyte by Appropriate Oxygen Plasma Treatment for Flexible All‐Solid‐State Supercapacitor

Interface Engineering of Thin‐Film Lithium Phosphorus Oxynitride Electrolyte by Appropriate Oxygen Plasma Treatment for Flexible All‐Solid‐State Supercapacitor

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