Synthetic Metals最新文献_第5页

Hydrothermally produced perovskite adorned on PANI nanocomposite as an efficient material for supercapacitor 水热法制备的钙钛矿修饰聚苯胺纳米复合材料是一种高效的超级电容器材料

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-11 DOI: 10.1016/j.synthmet.2025.118022

Rafat M. Ibrahim

Energy is the major need of current century and researcher are significantly trying to developed renewable energy storage devices. 2-D metal oxides have exceptional electrochemical properties for charge storage like supercapacitors. Here, hydrothermal route was adopted to create the SrMnO₃/PANI nanohybrid electrode for supercapacitor. A variety of characterization, including scanning electron microscopy (SEM) and X-ray diffraction (XRD) were employed to investigate the physicochemical studies of all samples. The electrochemical performance was evaluated by electrochemical observation including cyclic voltammetry and impendence technique. The capacitance, energy and power density of the SrMnO₃/PANI material is ascertained using galvanostatic charge-discharge studies, achieving the values of 1575 F/g, 280 W/kg, and 70 Wh/kg at 1 A/g applied current density, correspondingly. A nanohybrid comprising SrMnO₃ and PANI has demonstrated exceptional stability following 5000th cycles. The Nyquist plot indicated a reduction in solution resistance of 0.79 Ω for the synthesized SrMnO₃/PANI nanohybrid. The SrMnO₃/PANI nanohybrid may be an exemplary option for energy storage systems owing to its enhanced electrochemical properties.

能源是本世纪的主要需求，研究人员正在大力开发可再生能源存储设备。二维金属氧化物具有优异的电化学性能，可以像超级电容器一样储存电荷。本文采用水热法制备了SrMnO3/PANI纳米杂化电极。采用扫描电镜（SEM）和x射线衍射（XRD）等多种表征手段对样品进行了理化研究。通过循环伏安法和阻抗法等电化学观察方法对其电化学性能进行了评价。通过恒流充放电研究确定了SrMnO3/PANI材料的电容、能量和功率密度，在1 A/g电流密度下分别达到1575 F/g、280 W/kg和70 Wh/kg。由SrMnO3和PANI组成的纳米杂化物在5000次循环后表现出优异的稳定性。Nyquist图显示，合成的SrMnO3/PANI纳米杂化物的溶液抗性降低了0.79 Ω。由于其增强的电化学性能，SrMnO3/PANI纳米杂化材料可能成为储能系统的典型选择。

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引用次数: 0

Electrochemical sensing of domperidone using an electrode modified with cerium-nickel bimetallic organic frameworks and hydroxylated graphene nanosheets 用铈-镍双金属有机框架和羟基化石墨烯纳米片修饰电极对多潘立酮的电化学传感

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-02 DOI: 10.1016/j.synthmet.2025.118051

Azita khalilzadeh, Ahmad Soleymanpour, Kobra zarei

This study presents a highly sensitive and selective electrochemical sensor for domperidone (DOM), using differential pulse voltammetry (DPV) on a pencil graphite electrode (PGE) modified with cerium–nickel bimetallic metal-organic frameworks (Ce–Ni–MOF) and hydroxylated graphene nanosheets (GNP–OH). The modified electrode was fully characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and field emission scanning electron microscopy (FESEM), confirming the successful incorporation of the nanocomposite and the formation of a rough, porous surface with abundant electroactive sites. Under optimized conditions, DOM was detected in a wide linear range (1.0 × 10⁻⁸ to 5.0 × 10⁻⁶ M), with a low detection limit of 7.1 nM. Compared with previously reported sensors, this approach offers enhanced sensitivity, improved reproducibility, and a simple, one-step electrode fabrication. The sensor was successfully applied to the determination of DOM in pharmaceutical tablets, blood, and urine samples, demonstrating its practical applicability and analytical reliability.

本研究利用差分脉冲伏安法（DPV）在由铈-镍双金属金属-有机框架（Ce-Ni-MOF）和羟基化石墨烯纳米片（GNP-OH）修饰的铅笔石墨电极（PGE）上，提出了一种高灵敏度和高选择性的多潘立酮（DOM）电化学传感器。通过循环伏安法（CV）、电化学阻抗谱（EIS）和场发射扫描电镜（FESEM）对修饰电极进行了充分的表征，证实了纳米复合材料的成功结合，并形成了具有丰富电活性位点的粗糙多孔表面。在优化的条件下，DOM在1.0 × 10⁻⁸~ 5.0 × 10⁻26 M的线性范围内被检测到，检出限低至7.1 nM。与以前报道的传感器相比，这种方法提供了更高的灵敏度，更好的再现性，以及简单的一步电极制造。该传感器成功应用于药品片剂、血液和尿液样品中DOM的测定，证明了该传感器的实用性和分析可靠性。

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引用次数: 0

Wearable technology for 2D MXene based supercapacitors 2D MXene超级电容器的可穿戴技术

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-22 DOI: 10.1016/j.synthmet.2025.118068

Begüm Sarac , Seydanur Yücer , Fatih Ciftci , Mika Sillanpää

The growing demand for wearable electronics has intensified the need for lightweight, flexible, and high-performance energy storage systems. MXene-based supercapacitors have emerged as a promising solution due to their high electrical conductivity, large surface area, mechanical flexibility, and excellent electrochemical performance. These features enable rapid charge–discharge capability, long cycling stability, and seamless integration with flexible and stretchable substrates. This study reviews the application potential of MXene-based supercapacitors in wearable technologies such as health monitoring systems, fitness trackers, smart textiles, and AR/VR devices. In addition, key challenges, including large-scale production, oxidation stability, electrolyte compatibility, and mechanical durability, are discussed. Recent strategies to enhance material stability and device performance through surface modification and hybrid configurations are highlighted. MXene-based supercapacitors are expected to play a crucial role in the development of next-generation self-powered and smart wearable systems.

对可穿戴电子产品日益增长的需求加剧了对轻质、灵活和高性能储能系统的需求。基于mxene的超级电容器由于其高导电性、大表面积、机械灵活性和优异的电化学性能而成为一种有前途的解决方案。这些特性使快速充放电能力，长循环稳定性，并与柔性和可拉伸基板无缝集成。本研究综述了基于mxene的超级电容器在健康监测系统、健身追踪器、智能纺织品和AR/VR设备等可穿戴技术中的应用潜力。此外，还讨论了包括大规模生产、氧化稳定性、电解质相容性和机械耐久性在内的关键挑战。强调了通过表面改性和混合配置提高材料稳定性和器件性能的最新策略。基于mxene的超级电容器有望在下一代自供电和智能可穿戴系统的开发中发挥关键作用。

引用次数: 0

Functionalized imidazole chromophores containing triphenylamine and acridine units for solution-processed deep-blue OLEDs 含三苯胺和吖啶基团的功能化咪唑发色团溶液处理的深蓝色oled

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-07 DOI: 10.1016/j.synthmet.2026.118076

Qingyuan Tian , Shuomei Zhang , Di Zhang , Yuling Zhao , Wenming Su , Tianzhi Yu

Two Y-shaped imidazole-derived chromophores, DMAC-π-IM-(π-TPA)₂ and DPAC-π-IM-(π-TPA)_2, with imidazole unit as the acceptor and two triphenylamine (TPA) moieties attached at C4 and C5 positions of imidazole ring and one 9,9-dimethylacridine (DMAC) or 9,9-diphenylacridine (DPAC) moiety attached at C2 position of imidazole ring, were designed and synthesized for solution-processed blue OLEDs. Both of the compounds displayed deep-blue emission in toluene solution with photoluminescent quantum yield (PLQY) of 63.26 % for DMAC-π-IM-(π-TPA)₂ and 65.61 % for DPAC-π-IM-(π-TPA)₂, while they exhibited green emission in thin films with PLQY of 30.33 % and 24.48 %, and the compounds showed excellent thermal stability with the decomposition temperatures of 457 °C and 491 °C, respectively. In the absence of the hole-transporting layer, the solution-processed doped devices using the blend of 1,3-di(9H-carbazol-9-yl)benzene (mCP) with the Y-shaped imidazole-derived chromophores as emitting layers emitted deep-blue emission a maximum luminance (L_max) of 1206 cd/m² and a maximum external quantum efficiency (EQE_max) of 2.40 % for DMAC-π-IM-(π-TPA)₂ and a L_max of 944 cd/m² and a EQE_max of 3.60 % for DPAC-π-IM-(π-TPA)₂, respectively, suggesting that these compounds have a great potential as the organic emitters for deep-blue OLEDs.

设计合成了以咪唑为受体，在咪唑环的C4和C5位置连接两个三苯胺（TPA）基团，在咪唑环的C2位置连接一个9,9-二甲基吖啶（DMAC）或9,9-二苯吖啶（DPAC）基团的两个y形咪唑衍生的发色团DMAC-π- im -(π-TPA)2和DPAC-π- im -(π-TPA)2。两种化合物在甲苯溶液中均表现出深蓝色发光，DMAC-π- im -(π-TPA)2的光致发光量子产率为63.26 %,DPAC-π- im -(π-TPA)2的光致发光量子产率为65.61 %，而在薄膜中表现出绿色发光，PLQY分别为30.33 %和24.48 %，两种化合物均表现出优异的热稳定性，分解温度分别为457℃和491℃。在没有空穴传输层的情况下，以1,3-二（9h -卡布唑-9-基）苯（mCP）和y形咪唑衍生发色团为发射层的溶液处理掺杂器件发射出深蓝，DMAC-π- im -(π-TPA)2的最大亮度（Lmax）为1206 cd/m2，最大外量子效率（EQEmax）为2.40 %,DPAC-π- im -(π-TPA)2的Lmax为944 cd/m2， EQEmax为3.60 %。这表明这些化合物有很大的潜力作为深蓝色有机发光二极管的有机发射体。

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引用次数: 0

Towards sustainable and safe-by-design energy solutions: Citric acid/perylene derived carbon dots as cathode interfacial layer in organic solar cells 走向可持续和设计安全的能源解决方案：柠檬酸/苝衍生碳点作为有机太阳能电池的阴极界面层

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-21 DOI: 10.1016/j.synthmet.2025.118034

Federico Turco , Benedetta M. Squeo , Eleonora S. Cama , Alessandro Cataldo , Francesca Villafiorita-Monteleone , Chiara Botta , Silvia Luzzati , Anna M. Ferretti , Guido Scavia , Alessio Lamperti , Mariacecilia Pasini , Umberto Giovanella

In this study, carbon dots (CDs) synthesized from citric acid/perylene derived from agricultural or biodiesel waste by following the paradigm of circular chemistry, are used as a cathode interlayer (CIL) in non fullerenic organic solar cells (OSCs). The integration of CDs in OSCs not only reduces the work function of the cathode metal, but also enhances the extraction of charge carriers, while simultaneously minimizing carrier recombination. Comparative analysis between CD-incorporating OSCs and those featuring commercial aliphatic amine-functionalized perylene-diimide (PDINN) as CIL reveals that while both exhibit similar photovoltaic parameters, a notable improvement is observed when utilizing their unprecedented combination in a CD/PDINN bilayer CIL. Consequently, the maximum power conversion efficiency of commercial PBDB-T/ITIC OSC reaches 9.14 %, sustained under constant AM1.5 G illumination for at least 90 min. These findings suggest that CDs are promising candidates for stable and efficient cathode interlayers, even though they are deposited from water solution, underscoring their potential in advancing sustainable and safe-by-design solar cell technologies.

在这项研究中，碳点（CDs）是由农业或生物柴油废料中衍生的柠檬酸/苝合成的，遵循循环化学的范式，被用作非富勒烯有机太阳能电池（OSCs）的阴极中间层（CIL）。CDs在OSCs中的集成不仅降低了阴极金属的功函数，而且增强了载流子的提取，同时最大限度地减少了载流子的复合。对比分析了含CD的OSCs和以商业脂肪族胺功能化苝-二亚胺（PDINN）为CIL的OSCs，结果表明，虽然两者具有相似的光伏参数，但在CD/PDINN双层CIL中使用它们的前所未有的组合时，可以观察到显著的改善。因此，商用PBDB-T/ITIC OSC的最大功率转换效率达到9.14 %，在恒定AM1.5 G照明下持续至少90 min。这些发现表明，尽管CDs是由水溶液沉积而成，但它们是稳定高效的阴极中间层的有希望的候选者，强调了它们在推进可持续和设计安全的太阳能电池技术方面的潜力。

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引用次数: 0

EMI shielding and joule heating properties of Cu/Ni metallized knitted fabrics 铜/镍金属化针织物的电磁干扰屏蔽及焦耳加热性能

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-30 DOI: 10.1016/j.synthmet.2025.118072

Shachi Yadav, Kuldip Singh, Vijay Baheti

In this study, the electroless plating method was optimized for three process parameters i.e., CuSO₄ concentration, NiSO₄ concentration, and pH using an L9 orthogonal array Taguchi design for developing long lasting metallized fabrics. Further, few sample prototypes of metallized fabrics were developed at optimum electroless plating conditions with varying plating time. The morphological characterizations such as SEM, EDS, and XRD analysis of metallized fabrics depicted successful deposition of Cu/Ni particles. The electroless plating process was found to increase the fabric areal density, thickness and stiffness, while slightly reducing air permeability with a marginal increase in thermal and water vapour transmission. The electrical conductivity of the fabric was found stable at higher stretch levels, indicating its robust conductive performance. The metallized fabric showed an EMI shielding effectiveness of ∼26 dB across both lower and higher frequency ranges, alongside efficient joule heating, reaching ∼250 °C within 180 s at 10 V. These results demonstrated the potential of metallized fabrics as breathable, stretchable materials for advanced applications in EMI shielding and electrothermal devices.

本研究采用L9正交设计，对硫酸铜浓度、硫酸钾浓度和pH 3个工艺参数进行优化，以制备长效金属化织物。此外，在不同电镀时间的最佳化学镀条件下，很少有金属化织物的样品原型。金属化织物的SEM、EDS和XRD等形貌表征表明，Cu/Ni颗粒成功沉积。发现化学镀工艺增加了织物的面密度、厚度和刚度，同时略微降低了透气性，但热和水蒸气的透射率略有增加。织物的导电性在较高的拉伸水平下保持稳定，表明其导电性能良好。金属化织物在低频率和高频率范围内的电磁干扰屏蔽效率为~ 26 dB，伴随着有效的焦耳加热，在180 s内达到~ 250°C，电压为10 V。这些结果证明了金属化织物作为一种透气、可拉伸的材料在电磁干扰屏蔽和电热器件中的先进应用的潜力。

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引用次数: 0

Co single-atom catalysts for the electrochemical detection of nitrite in real samples Co单原子催化剂用于实际样品中亚硝酸盐的电化学检测

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-29 DOI: 10.1016/j.synthmet.2025.118052

Caidi Zhang, Guangyu Li, Chengqian Duan

A dodecahedral single-atom cobalt catalysts with nitrogen-doped carbon matrices (Co-N-C) is synthesized by calcining MOFs precursors (ZIF-67), which is constructed as non-enzymatic sensor for the sensitive detection of nitrite (NO₂⁻). The characterization of the Co-N-C catalysts has been performed by X-ray powder diffraction (XRD), transmission electron microscopic (TEM) and scanning electron microscopy (SEM). The outcome shows that Co-N-C is a dodecahedron with a rough surface and a diameter of about 200–280 nm. The electrochemical measurements demonstrate that the Co-N-C/GCE sensor displays a favourable voltammetric response towards the oxidation of NO₂⁻ with a wide linear range from 0.1278 mM to 42.7778 mM. It also displays a low detection limit of 0.0426 mM (S/N = 3) and high sensitivity of 715.32 μA mM⁻¹ cm⁻² and 305.37 μA mM⁻¹ cm⁻². Moreover, determinations of NO₂⁻ in tap water and pickle juice samples are performed respectively by the standard addition method. The results of three parallel measurements are acceptable with the relative standard deviation of 0.36–1.30 % and the recovery of 95.60–101.80 %. Therefore, Co-N-C/GCE is expected to be a new platform for NO₂⁻ detection.

通过煅烧mof前驱体（ZIF-67），合成了氮掺杂碳基体（Co-N-C）十二面体单原子钴催化剂，构建了用于亚硝酸盐（NO2−）灵敏检测的非酶传感器。采用x射线粉末衍射（XRD）、透射电镜（TEM）和扫描电镜（SEM）对Co-N-C催化剂进行了表征。结果表明，Co-N-C为表面粗糙的十二面体，直径约为200 ~ 280 nm。电化学测量表明，Co-N-C/GCE传感器对NO2−的氧化表现出良好的伏安响应，线性范围从0.1278 mM到42.7778 mM。低检出限为0.0426 mM (S/N = 3)，高灵敏度为715.32 μA mM−1 cm−2和305.37 μA mM−1 cm−2。采用标准加入法分别测定了自来水和泡菜汁样品中的NO2−。三次平行测定结果可接受，相对标准偏差为0.36 ~ 1.30 %，回收率为95.60 ~ 101.80 %。因此，Co-N-C/GCE有望成为NO2−检测的新平台。

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引用次数: 0

Silicone elastomers with a small MWCNTs content: Thermal properties, surface profile and hydrophobicity 含有少量MWCNTs的有机硅弹性体：热性能、表面轮廓和疏水性

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-21 DOI: 10.1016/j.synthmet.2026.118090

Iryna Sulym , Konrad Terpiłowski , Mykola Borysenko , Emmanuel Flahaut , Zarel Valdez-Nava

MWCNTs/PDMS nanocomposites with a small amount of MWCNTs (0.25, 0.5, 1.5 and 2.5 wt%) were prepared by the solution-casting and curing techniques. The structural properties of the fabricated elastomers were characterized using FTIR and Raman spectroscopies, indicating an interaction between the nanofiller and the polymer through physical bonding. The characteristic peaks of MWCNTs are not visible in the XRD spectra of the obtained polymer nanocomposites due to their lower content and surrounding by the matrix. Thermal decomposition in air was performed to determine the effect of the low-loaded MWCNTs on the thermal-oxidative stability of nanocomposites. Differential thermogravimetric (DTG) analysis showed a notable shift towards higher temperatures at approximately 42 °C, 78 °C, and 33 °C for the first three DTG peaks maxima in the case of the 2.5MWCNTs/PDMS nanocomposite compared to neat PDMS. The morphology and surface roughness were investigated by SEM and a 3D non-contact optical surface profilometer. The incorporation of 2.5 wt% MWCNTs into the PDMS matrix results in an increase in the water contact angle from 95.6 ± 4.2° to 112.4 ± 2.8° and a decrease in the apparent surface free energy from 28.0 ± 3.9 mJ/m² to 20.8 ± 2.4 mJ/m² compared to neat PDMS, demonstrating that the MWCNTs/PDMS nanocomposites are more hydrophobic. Studies were conducted on the stability of surface properties (hydrophobicity, roughness) over time under relevant environmental conditions. This paper shows that the surface topology, wettability and thermal properties of PDMS can be tuned with reasonable confidence using a small amount of MWCNTs.

采用溶液浇铸和固化技术制备了少量MWCNTs（0.25、0.5、1.5和2.5 wt%）的MWCNTs/PDMS纳米复合材料。利用红外光谱（FTIR）和拉曼光谱（Raman）对合成弹性体的结构特性进行了表征，表明纳米填料与聚合物之间通过物理键合相互作用。由于MWCNTs的含量较低且被基体包围，其特征峰在聚合物纳米复合材料的XRD光谱中不可见。在空气中进行热分解，以确定低负荷MWCNTs对纳米复合材料热氧化稳定性的影响。差热重（DTG）分析显示，与纯PDMS相比，2.5MWCNTs/PDMS纳米复合材料的前三个DTG峰值在大约42°C、78°C和33°C的温度下明显向更高的温度转变。利用扫描电子显微镜和三维非接触式光学表面轮廓仪对其形貌和表面粗糙度进行了研究。 的合并2.5 wt %热合PDMS矩阵结果的水接触角的增加从95.6 ± 4.2°到112.4 ± 2.8°,明显降低表面自由能从28.0 ±3.9  20.8 mJ / m2 ±2.4  mJ / m2与整洁的PDMS相比,表明碳管/ PDMS更疏水性纳米复合材料。研究了在相关环境条件下表面性能（疏水性、粗糙度）随时间的稳定性。本文表明，使用少量的MWCNTs可以合理地调节PDMS的表面拓扑结构、润湿性和热性能。

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引用次数: 0

Enhanced electrochemical performance of self-crosslinked PEDOT:PSS hydrogel electrodes for supercapacitors 超级电容器用自交联PEDOT:PSS水凝胶电极电化学性能的提高

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-22 DOI: 10.1016/j.synthmet.2025.118067

Kiran Gupta , Ram Sevak Singh , Arun Kumar Singh

Conducting polymer hydrogels exhibit unique electrical and electrochemical characteristics, positioning them as promising materials for advanced energy storage applications. However, achieving both high electrical conductivity and capacitive performance remains a challenge, as conventional hydrogel synthesis often involves the use of insulating additives that compromise electrochemical stability. In this work, we report the synthesis of an additive-free poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) hydrogel via a simple gel-film formation process. Field emission scanning electron microscopy reveals a three-dimensional interconnected porous structure, which is favourable for good ion transport and charge storage. The PEDOT:PSS hydrogel electrode delivers a high areal capacitance of 1047 mF/cm² at a scan rate of 2 mV/s in 1 M KOH. A solid-state symmetric supercapacitor fabricated using this hydrogel exhibits a high energy density of 54.3 μWh/cm² at a power density of 307.5 μW/cm², along with excellent cycling stability, retaining ∼97.4 % of its capacitance after 3000 cycles. Practical applicability is demonstrated by powering a ‘GGV’ LED panel comprising 21 LEDs using two devices connected in series. This study underscores the potential of additive-free PEDOT:PSS hydrogels as efficient, scalable electrode materials for next-generation energy storage systems.

导电聚合物水凝胶表现出独特的电学和电化学特性，使其成为先进储能应用的有前途的材料。然而，实现高导电性和高电容性能仍然是一个挑战，因为传统的水凝胶合成通常涉及使用有损电化学稳定性的绝缘添加剂。在这项工作中，我们报告了通过简单的凝胶膜形成工艺合成无添加剂的聚（3,4-乙烯二氧噻吩）：聚苯乙烯磺酸盐（PEDOT:PSS）水凝胶。场发射扫描电镜显示三维互连多孔结构，有利于良好的离子传输和电荷存储。PEDOT:PSS水凝胶电极在1 M KOH中扫描速率为2 mV/s时提供1047 mF/cm2的高面电容。利用该水凝胶制备的固态对称超级电容器在307.5 μW/cm2的功率密度下具有54.3 μWh/cm2的高能量密度，并且具有优异的循环稳定性，在3000次循环后保持了97.4% %的电容。通过使用串联连接的两个器件为包含21个LED的“GGV”LED面板供电，证明了实用性。这项研究强调了无添加剂PEDOT:PSS水凝胶作为下一代储能系统中高效、可扩展的电极材料的潜力。

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引用次数: 0

3D printing of PEDOT:PSS microstructures: Capacitance scaling and mechanical flexibility for microelectronic devices PEDOT的3D打印：PSS微结构：微电子器件的电容缩放和机械灵活性

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-06 DOI: 10.1016/j.synthmet.2026.118075

Myung-Nam Jeong , Hyeon-Seok Seo , Jaewon Choi , Jae-Hoon Kim , Seong-Jae Eom , Ki Hoon Sung , Jong-Sik Moon , Vanna Chrismas Silalahi , Jong-Min Lee

The precise fabrication of three-dimensional (3D) conductive polymer microarchitectures is critical for advancing flexible electronics and micro-sensing technologies. Here, we report a meniscus-guided 3D printing approach for the direct writing of high-aspect-ratio poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) microstructures. By leveraging controlled meniscus stretching and solvent evaporation, we fabricated free-standing micropillar arrays with aspect ratios exceeding 20:1. Systematic optimization of ink rheology and pulling speed enabled precise dimensional control, yielding uniform diameters down to a few micrometers. The printed microstructures exhibited remarkable electro-structural stability, showing negligible resistance change after 1000 bending cycles at 10 % strain. Functionally, these arrays demonstrated highly sensitive picofarad (pF)-scale capacitance variations dependent on electrode separation, confirming the preservation of PEDOT:PSS conductivity and their suitability for ultra-sensitive capacitive microsensors. Successful integration onto flexible conductive paper substrates underscores the versatility of this technique. This meniscus-guided strategy provides a scalable pathway for fabricating robust, 3D conductive polymer architectures for next-generation high-density electronics, microsensors, and wearable devices.

三维（3D）导电聚合物微结构的精确制造对于推进柔性电子和微传感技术至关重要。在这里，我们报告了一种半月板引导的3D打印方法，用于直接书写高纵横比聚（3,4-乙烯二氧噻吩）：聚苯乙烯磺酸盐（PEDOT:PSS）微结构。通过控制半月板拉伸和溶剂蒸发，我们制造了纵横比超过20:1的独立式微柱阵列。油墨流变性和拉出速度的系统优化实现了精确的尺寸控制，使直径均匀到几微米。打印的微结构表现出显著的电结构稳定性，在10 %应变下弯曲1000次后电阻变化可以忽略不计。在功能上，这些阵列显示出依赖于电极分离的高度敏感的皮法拉（pF）尺度电容变化，证实了PEDOT:PSS电导率的保存及其对超灵敏电容微传感器的适用性。在柔性导电纸基板上的成功集成强调了该技术的多功能性。这种半月板导向策略为下一代高密度电子产品、微传感器和可穿戴设备制造坚固的3D导电聚合物结构提供了可扩展的途径。

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引用次数: 0