ACS Applied Materials & Interfaces
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2025
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IF 8.2
Zihan Zhong,Qingqing Shao,Baoxin Ni,Dazhi Wang,Zixi Xie,Libang Xu,Yakui Mu,Qisen Wang,Tan Wang,Yiwen Feng,Jingwei Hou,Kun Jiang,Anthony K. Cheetham,Tiesheng Wang
Controlling the nanostructure of conducting polymers (CPs) is essential for enhancing their performance in energy storage applications. Existing CPs often suffer from low effective pseudocapacitance due to poor ion permeability. In this study, we introduce a novel approach using hydrogen-bonded organic frameworks (HOFs) to synthesize porous poly(3,4-ethylenedioxythiophene) (PEDOT). We incorporated 3,4-ethylenedioxythiophene (EDOT) into HOF-16 by leveraging the flexible hydrogen-bonding interactions. Following the polymerization of EDOT, the HOF-16 was removed to form a porous interconnected network of PEDOT. Electrochemical evaluations demonstrated that the porous PEDOT exhibited significantly enhanced performance, including high specific capacitance, excellent rate capability, and ∼95% capacitance retention after 10,000 cycles. Compared to PEDOT prepared without HOF, the porous PEDOT showed a 34% increase in specific capacitance and a 10% improvement in 10,000-cycle capacitance retention. This work highlights the potential of HOF-enabled synthesis in creating high performance conducting polymers, offering a new avenue to improve supercapacitor performance, particularly in capacitance and cycling stability.
研究领域:
材料科学
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能源存储
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DOI
PubMed
高影响因子
International Journal of Electrochemical Science
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2023
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IF 1.5
Min Yang,Ying Liu,Yonggui Song,Guochun Zhao,Haiyan Tan,Qiuping Zhang,Fugang Xu
In this study, a new approach was developed to prepare a novel three dimensional macroporous poly(3,4-ethylene-dioxythiophene)-Prussian blue hybrid 3D-PEDOT-PB for sensitive H 2 O 2 detection. 3D-PEDOT prepared by electrodeposition not only as a conductive matrix, but also as a reductant to initiate the spontaneously “electroless” deposition of PB and as scaffold with large surface area for firmly anchoring more PB NPs. The 3D macroporous structure of the hybrid also facilitates the electron transfer and mass transport. Due to the synergistic interaction between the 3D-PEDOT and the PB NPs, the hybrid shows remarkably enhanced activity for H 2 O 2 reduction. A non-enzymatic H 2 O 2 sensor with a high sensitivity (981 μA·mM -1 ·cm -2 ), a wide linear range (0.17 μM to 0.257 mM) and a low detection limit (80 nM) was fabricated based on the 3D-PEDOT-PB hybrid. Furthermore, the prepared sensor displays a rapid, stable response and good selectivity. The simple preparation and advanced properties of the novel 3D-PEDOT-PB hybrid may have promising applications in electrochemical sensor, electrochromic device and so on.
研究领域:
材料科学
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分析化学
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电化学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Liuyan Li,Shuwen Yang,Kailai Xia,Meixin Chen,Yuhang Zhuang,Wenqi Zhu,Qinzhui Huang,Yanfang Wang,Xuanhe Fan,Wenqi Zhao,Zhixing Lu,Yeye Wen,Mingmao Wu,Zhigang Zou
With the miniaturization of integrated circuits driving increased demand for high-frequency alternating current (AC)-line filtering capacitors, portable electrochemical capacitors (ECs) must reconcile two persistent challenges: i) the inherent contradiction in synergistic enhancement between areal capacitance ( C A ) and volumetric capacitance ( C V ) at the condition of high frequency response, and ii) developing scalable fabrication methods. To address these issues, an electrostatic-induced Marangoni assembly process is introduced, which enables large-area, rapid deposition of poly(3,4-ethylenedioxythiophene) (PEDOT) films with a uniform, 3D fibrous porous network. By pre-treating the PEDOT:poly(styrenesulfonate) (PSS) ink with a polar solvent and applying an electrostatic field, Marangoni flows align microdroplets into a continuously interconnected 3D architecture. This structure not only facilitates ultrafast ion transport but also provides abundant storage sites, yielding a sultaneous enhancement in C A (1.72 mF cm⁻ 2 ) and C V (13.2 F cm⁻ 3 ), as well as an exceptional phase angle of −82.9° at 120 Hz. These metrics surpass those of most reported carbon- and PEDOT-based filtering capacitors. Moreover, the method accommodates high-loading of pseudocapacitive materials, demonstrating its versatility for composite electrode engineering. Subsequent AC-line filtering tests confirm the practical applicability of these electrodes, offering a scalable route to miniaturized capacitors with synergistically optimized C A and C V .
研究领域:
材料科学
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电化学
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纳米技术
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电子器件
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高分子科学
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应用物理学
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DOI
高影响因子
危险品化学品经营许可证（带存储）