CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yangmiao Shen,Junhe Zhang,Fanglan Guan,Jianming Wang,Xin Li,Tianjiao Zhang
Since the discovery of Graphene sheets, Graphene fiber- and MXene fiber-based supercapacitors (GFSCs) have undergone significant advancements in flexible fiber power. However, a key hurdle for GFSCs to be used in the electrical textile is the bad energy density and significant performance degradation at low temperatures. Herein, vertically oriented MXene/PEDOT:PSS/RGO (MPG) hybrid fibers were attained with wet spinning method on the basis of investigating the rheological properties of MXene, PEDOT:PSS, and GO dope combined with CFD simulations. The azimuthal profile of the 2D SAXs reveals a distinct peak at 90°, with a Herman's orientation factor of 0.7. The MPG fiber containing ~42 wt% MXene achieves a balanced tensile strength of 173 MPa and an electronic conductivity of 400 S/cm. The 42 wt% MXene MPG FSCs exhibit distinguished energy density of 100 mWh cm −3 , which exceeds those of previously reported Ti 3 C 2 T x MXene-based FSCs. To enhance the low-temperature electrochemical performance of MPG FSCs, solid electrolyte nano-AgI is grafted onto the fiber surface with 60 Co γ-ray. At −0,-20, −40 and − 60 °C, the assembled MGP FSCs maintain energy densities of 59, 38, 16 mWh cm −3 and 880 μWh cm −3 respectively. Four MPG FSCs in series can light up six led for 53 s at −20 °C. These MPG FSCs exhibit their potential for wearable electronics in cold environments.
研究领域:
材料科学
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储能技术
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纳米技术
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柔性电子学
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纺织工程
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产品关联
DOI
高影响因子
SOLAR ENERGY
·
2018
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IF 4.374
Abdelaal S.A. Ahmed,Wanchun Xiang,Xiaowei Hu,Chen Qi,Ibrahim Saana Amiinu,Xiujian Zhao
Si 3 N 4 /MoS 2 nanocomposite has been fabricated through a solvothermal process and Mixed with polystyrenesulfonate-doped poly (3, 4-ethylenedioxythiophene) to prepare (Si 3 N 4 /MoS 2 -PEDOT: PSS) as a counter electrode (CE) for bifacial dye-sensitized solar cells (DSSCs). The electrochemical studies confirm that Si 3 N 4 /MoS 2 -PEDOT: PSS CEs exhibits higher catalytic activity compared with pristine Si 3 N 4 /MoS 2 and PEDOT: PSS. The DSSCs with 5% Si 3 N 4 /MoS 2 -PEDOT: PSS composite CE achieves conversion efficiency (PCE) of 7.16%, which is comparable to that of the conventional platinum CE (7.50%) and better than those of the pristine Si 3 N 4 /MoS 2 (3.80%) or PEDOT: PSS (4.20%) CEs. Owing to the optical transparency of Si 3 N 4 /MoS 2 -PEDOT: PSS composite CEs, bifacial DSSCs based on 5% Si 3 N 4 /MoS 2 -PEDOT: PSS CE yield 2.03% PCE from rear irradiation. The simple preparation method, high catalytic activity and electrochemical stability demonstrate that Si 3 N 4 /MoS 2 -PEDOT: PSS can be used a transparent CE in bifacial DSSCs.
研究领域:
材料科学
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能源科学
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纳米技术
✓ 已验证
DOI
高影响因子
International Journal of Electrochemical Science
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2023
·Vol. 12
·期 12
·11287-11297
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IF 1.5
Xiangyu Gao,Jinfu Ma,Yingtao Li,Haicheng Wei
Oxygen reduction reaction (ORR) is key issue for fuel cells because it always produces large polarization thus result in decrease of fuel cell performance. Herein, poly(3,4-ethylenedioxythiophene) (PEDOT) doped with graphene quantum dots (GQDs) was explored as an efficient ORR catalyst. GQDs with size of 3-5 nm were prepared by thermal reduction at 200°C. The PEDOT and GQDs@PEDOT were prepared by electropolymerization. Morphology and structure of catalysts were characterized by TEM and Raman. The catalytic activity and stability were investigated by CV, LSV, RDE and CA. Physical characterization indicated that PEDOT had a catenulate structure and GQDs were successfully combined with PEDOT. The results of electrochemical tests showed that the reduction peak current density of ORR was clearly increased after GQDs doping. Calculated by the K- L equation, the number of transferred electrons at -0.6 V increased from 2.66 to 3.57, which closed to the theoretical value 4. CA tests indicated that the current density on GQDs@PEDOT electrode was 0.26 mA·cm -2 . The hybrid of GQDs with PEDOT can enhance the catalytic activity and stability for ORR.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yiwei Dong,Bing Ren,Yubing Yang,Yongchang Mu,Yunlan Liu,Chenxu Wang,Jie Li,Jing Han
A eutectic solvent replacement strategy is proposed to synergistically regulate the polymer network and the conductive phase of PEDOT: PSS-based gels. • The optimized eutectogel achieves exceptional fracture strength, toughness and a high gauge factor. • The electrical enhancement involves conformational transition of PEDOT and improved conductivity from metal ion. • The sensor based on PEDOT: PSS eutectogel successfully enables monitoring during post operative cervical spine rehabilitation. Flexible electronics have sparked significant interest for their potential applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS)-based hydrogels have emerged as star materials in flexible electronics, yet their sensing capabilities remain constrained by compromised mechanoelectrical coordination. Herein, we present an approach through a eutectic solvent exchange strategy that synergistically regulates mechanical and electrical performance. Specifically, molecular engineering via eutectic solvent-enhanced hydrogen bonding strengthens interchain interactions to improve toughness, while electrical engineering involves (i) conformational transition of PEDOT from coiled benzoid to linear quinoid structure and (ii) the ionic conductivity contributed by Fe 3 + further enhances the conductivity. The optimized eutectogel (MSPFe60) achieves fracture strength (0.98 MPa), toughness (9.97 MJ·m −3 ), and gauge factor (GF= 21.2). We further demonstrate MSPFe60’s potential in postoperative cervical spine rehabilitation monitoring through real-time motion signal capture. Download: Download high-res image (283KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Zerun Sun,Jie Zhao,Han Peng,Mingjia Zou,Guofeng Cui
A major obstacle in the development of solid contact ion-selective electrodes (SC-ISEs) is the frequent calibration procedures due to the low reproducibility of standard potential(E 0 ) and the unstable signals. To address these challenges, we developed an all-solid state miniature sodium ion-selective electrode (Na + -ISE) based on acid-doped poly(3,4-ethylenedioxythiophene)-polystyrene sulphonate (PEDOT: PSS) as the solid contact layer, in combination with an external polarization technique. Acid doping minimized the Coulomb interaction between PEDOT and PSS, inducing significant phase separation and conformational re-aggregation of PEDOT chains, thus creating more contact points to facilitate charge transport and ion-to-electron transduction. The sensor exhibited excellent potentiometric performance with a detection limit of 5.90378 μM and potential drift of 10.99 μV/h. More importantly, external polarization significantly improved E 0 reproducibility across different electrodes (standard deviation reduced from 57.41 mV to 1.95 mV) and reduced batch-to-batch E 0 variability. The performance of the potentiometric sensor system was evaluated in inactivated fetal bovine serum, and the measurement results were highly comparable to those of the reference methods with deviation of less than 4 %. The electrochemical sensing system developed in this study provides a novel strategy for highly stable sodium ion sensing, indicating promising potential for calibration-free measurement in medical application.
研究领域:
电化学
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传感器与生物传感器
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材料科学
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分析化学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
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2024
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IF 5.7
Shi-Wei Wang,Peng-Fei Qian,Di Zhang,Wen-Hao Geng,Yi-Song Zhang,Xuan-Chen Liu,Lu-Yao Tian,Qingxia Zhu,Hong-Zhang Geng
In this work, the large-area poly 3,4-ethylenedioxythiophene (PEDOT: PSS) transparent conductive films (TCFs) were prepared by the solution shear method. These films exhibited excellent bendability , strong adhesion , superior uniformity, and high-light transmission. The optimum photoelectric figure of merit (FoM) of the films was 195.5, and the optimum photoelectric performance at a low sheet resistance (< 50 Ω/sq) was observed in the three-layer films, which was prepared at a dilution ratio of 2:1 and a shear rate of 1 mm/s, showing a thin-layer resistance of 34.7 Ω/sq, a transmittance of 93.2 %, an FoM of 151.9 and electrical conductivity of 2398.6 S/cm. The prepared films were used as the organic light-emitting diode (OLED) anode, and the large-area flexible green OLED device with good uniformity was obtained. The maximum current efficiency of the prepared large-area flexible OLED was 2.16 cd/A, reflecting the great potential of this solution-shear film in the field of flexible devices.
研究领域:
材料科学
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光电技术
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柔性电子
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产品关联
DOI
高影响因子
Smart Materials and Structures
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2023
·Vol. 32
·期 3
·035036
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IF 4.1
Ding Ding,Qian Wu,Yinan Gao,Jinmei Wang,Yixun Chen,Qian Li
Fiber- and yarn-based thermoelectric materials play an essential role in the design of fabric-based flexible thermoelectric generators (FTEGs) which may overcome the wearable difficulties of existing film-based FTEGs. In this study, we used a robust coating method to produce high-performance thermoelectric yarns for wearable applications. An organic/inorganic hybrid coating agent composed of PEDOT:PSS, MWCNT, and Bi2Te3 was used to coat an alkali modified porous polyester yarn. The organic/inorganic hybrid material contributes to the improved thermoelectric properties. The porous modification of polyester yarns improves the wicking property of the fibers and enhances the adhesion stability between yarn substrate and the coating layer. A compromised optimal power factor of 12.3 μWm−1 K−2 could be achieved by 20 wt% Bi2Te3 loading. The corresponding electrical conductivity and Seebeck coefficient were 5526.8 S m−1 and 47.1 μV K−1 at room temperature respectively. A fabric thermoelectric generator with five yarn legs could generate an open circuit voltage of 2.95 mV at a temperature difference of 30 °C, demonstrating its potential application in wearable applications.
研究领域:
材料科学
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纺织工程
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能源技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
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IF 3.235
Hongrui Wang,Min Gao,Yan-an Zhu,Huawei Zhou,Huating Liu,Lin Gao,Mingxing Wu
Carbon molecular sieve is introduced as flexible supercapacitor electrode for the first time. The carbon molecular sieve electrode generates a specific capacitance of 108.0 F·g −1 and demonstrates an excellent stability with 98.5% preservation of its initial capacitance after 10,000 charging-discharging cycles. To further enhance the electrochemical performance, a flexible 3-D structured composite electrode is synthesized via an electrochemical polymerization method by depositing poly 3,4‑ethylenedioxythiophene film on the carbon molecular sieve surface, denoted as carbon molecular sieve@poly 3,4‑ethylenedioxythiophene. The specific capacitance of the composite electrode is up to 126.0 F·g −1 , higher than both poly 3,4‑ethylenedioxythiophene (115.7 F·g −1 ) and carbon molecular sieve (108.0 F·g −1 ). Moreover, the flexible composite electrode preserves 96.0% of its initial capacitance after 10,000 charging-discharging cycles at 1.00 A·g −1 . The superior performance of the composite electrode is attributed to the combined merits of the superior conductivity and excellent cycle stability of the carbon molecular sieve and 3-D porous network configuration of the poly 3,4‑ethylenedioxythiophene.
研究领域:
材料科学
·
能源存储与转换
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2023
·
IF 4.6
Jing Li,Hai Nie,Guoyun Zhou,Yan Hong,Wei Meng,Yongkang Zhu,Qinghua Huang
Flexible, biocompatible temperature sensors are of great importance for future developments in wearable electronic skin. Herein, a high resolution, fast response, biocompatible negative temperature coefficient (NTC) temperature sensor comprised of poly (3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT: PSS) and phthalocyanine copper (CuPc) is developed. The addition of CuPc with high electron mobility to PEDOT: PSS increases the effective electron transition under the action of thermal energy , and thus its thermoelectric performance of the material is improved. The packaged sensor can monitor temperature changes in the range of 20 °C to 80 °C in real time with high sensitivity (0.1940% °C −1 ), linearity (R 2 =0.994) and accuracy (0.1 °C). When the ambient temperature of the sensor changes from 25 °C to 50 °C, the response and recovery time of the sensor are ∼ 1 s. The performance of the sensor has not decreased significantly after 4 weeks of continuous operation, which validates the high reliability of the sensor in the extended working time. Furthermore, the comparison between the PEDOT: PSS/CuPc sensor and commercial infrared thermal imager on different parts of the human body temperature measurement shows that the PEDOT: PSS/CuPc sensor is applicable in electronic skin, medical detection and other fields.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Maoqiang Chi,Guangdi Nie,Yanzhou Jiang,Zezhou Yang,Zhen Zhang,Ce Wang,Xiaofeng Lu
Here, we report a simple one-step procedure to fabricate coaxial Te@poly(3,4-ethylenedioxythiophene) (PEDOT) nanocables via a self-assembly redox polymerization between 3,4-ethylenedioxythiophene monomer and the oxidant of sodium tellurite without the assistance of any templates and surfactants. The as-synthesized Te@PEDOT coaxial nanocables have diameters of center cores in the range of 5–10 nm, and the size of the outer shell from several nanometers to 15 nm. More interestingly, the as-prepared Te@PEDOT nanocables can be converted to Pd@PEDOT nanocables via a galvanic replacement reaction. The center core of the Pd nanowire exhibits a high crystallinity. The application of the synthesized Pd@PEDOT nanocables as peroxidase-like catalysts for the colorimetric detection of H2O2 is reported. The synergistic effect between the Pd nanowire and electrically conducting PEDOT enhances the catalytic activity toward the oxidation of the peroxidase substrate 3,3′,5,5′-tetramethylbenzidine in the presence of H2O2. A detection limit toward H2O2 is as low as 4.83 μM, and a linear range from 10 to 100 μM has been achieved. This work offers a potential versatile route for the fabrication of cable-like nanocomposites with conducting polymers and other active components, which display great promise in applications such as catalysis, nanoelectronic devices, and energy storage and conversion.
研究领域:
材料科学
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生物催化
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2015
·
IF 6.217
Yaoming Xiao,Gaoyi Han,Jihuai Wu,Jeng-Yu Lin
A novel bifacial perovskite solar cell (PSC) is devised and prepared by using a highly transparent poly(3,4-ethylenedioxythiophene) (PEDOT) electrode. The PEDOT is used as the p-type hole-transporting material (HTM) due to the well matched band positions for the charge separation and transport. Moreover, the PEDOT layer can play a role of electron blocking layer at the CH 3 NH 3 PbI 3 /PEDOT interface to reduce the electron recombination rate because of its LUMO level is higher than that of the perovskite sensitizer. As a result, the bifacial PSC based on the PEDOT HTM yields front and rear efficiencies of 12.33% and 11.78% respectively, which are higher than those of the PSC without the PEDOT HTM (8.67% and 8.27% of the front and rear efficiencies). And the front efficiency is only decreased by 4.46% to the rear efficiency. These promising results highlight the potential application of the PEDOT in the cost-effective and transparent PSC, which could be used in the bifacial solar cell and tandem solar cell .
研究领域:
材料科学
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能源技术
·
光伏器件
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Abdul Rehman Akbar,Adil Saleem,Abdur Rauf,Rashid Iqbal,Muhammad Tahir,Gangqiang Peng,Abdul Sammed Khan,Arshad Hussain,Muhammad Ahmad,Mansoor Akhtar,Mumtaz Ali,Chuanxi Xiong,Quanling Yang,Ghaffar Ali,Fude Liu
Advanced flexible supercapacitors with high energy/power density are an imperative research objective. In this study, a dually activated carbon cloth is designed as the functional current collector for supercapacitors. An electrodeposition technique is used for engineering Manganese Dioxide (MnO 2 ) nanoflakes and profiting from a Poly (3,4 ethylene dioxythiophene; PEDOT) shield layer, a Li + -based neutral electrolyte high-performance freestanding asymmetric supercapacitors is constructed. The activated carbon cloth (ACC) provides an efficient electron-carrying route and the hierarchical nanostructure of the ACC@MnO 2 @PEDOT electrode. The integrated ACC@MnO 2 @PEDOT electrode exhibited exceptional capacitance performance of 1882.5 mF cm −2 (current density 1 mA cm −2 ) in 1.5 M aqueous LiCl electrolyte benefiting from ACC scaffold, the pseudocapacitive activity of MnO 2 and substantial conductivity of the PEDOT polymer. Fabricating the structured electrode into an asymmetric supercapacitor revealed an enhanced areal energy density and an areal power density. The fabricated device demonstrated a broad voltage window of 1.8 V and extraordinary cycling stability of 94.6% after 10000 charge-discharge cycles. The unique scaffold, conducting PEDOT polymer, and MnO 2 nanoflakes synergistically improved the cyclic performance and rate proficiency of the electrode, resulting in a supercapacitor with bendable electrical energy storage applications.
研究领域:
材料科学
·
电化学
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能量存储
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纳米技术
·
柔性电子学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）