APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Yue Cai,Huan Kang,Fengxing Jiang,Liming Xu,Yao He,Jingkun Xu,Xuemin Duan,Weiqiang Zhou,Xinyu Lu,Quan Xu
Hierarchical structural PEDOT@MoS 2 nanocomposite is synthesized via a facile electrochemical co-deposition of the intercalation of PEDOT into flower-like MoS 2 microspheres. The SEM, TEM, and other characterization results demonstrate the hierarchical PEDOT@MoS 2 composite with an enlarged interlayer spacing of MoS 2 to 1.02 nm, in which PEDOT nanoparticles act as intercalation, and flower-like MoS 2 microspheres are used as a substrate for growth. The electrochemical characterizations indicate that the PEDOT@MoS 2 electrode has an ultra-high specific capacitance of 4418 mF cm −2 at 2 mA cm −2 and remarkable cycling stability, retaining 100% of the initial capacitance at a high current density of 100 mA cm −2 after 10,000 cycles. The symmetric PEDOT@MoS 2 supercapacitor presents a high energy density of 88.3 mWh cm −2 at 60 mW cm −2 , and outstanding cycling stability (93% after 10,000 cycles). These prominent electrochemical performances are attributed to the expanded interlayer spacing, the synergistic effect between PEDOT and MoS 2 , the low resistance, along with the PEDOT@MoS 2 porous structure, indicating great potential applications of the PEDOT@MoS 2 electrode in the energy storage field.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Optical Materials Express
·
2020
·Vol. 10
·期 4
·1053-1060
·
IF 3.064
Sen Zhang,Lei Feng,Hui Zhang,Mingze Liu,Ting Xu
The electrochromic modulation of plasmonic metasurfaces showing structural colors is a promising strategy to realize dynamic electronic reflective displays. However, hybridizing electrochromic polymers with large-area plasmonic metasurfaces remains challenging. In this study, we present a poly(3,4-ethylenedioxythiophene) (PEDOT)-coated gold nanodisk (PCGN) metasurface, which is fabricated based on techniques of large-area anodic aluminum oxide template-assisted deposition and electrochemical polymerization. Experimental and numerical results demonstrated that fast and reversible electrochromic modulation was realized within the PCGN metasurface. The wavelength control of the localized surface plasmon resonance of the PCGN metasurface originated from the electrically driven refractive index change of the PEDOT layer. The PCGN metasurface is promising for the high yield manufacturing of devices applied in dynamic reflective displays.
研究领域:
材料科学
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光学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2022
·
IF 9.463
Yifan Cui,Guolin Zheng,Zhe Jiang,Man Zhou,Ping Wang,Yuanyuan Yu,Qiang Wang
Long term working in humid and cold environment will leads to arthritis and rheumatism. Therefore, it is necessary to develop a long-term and stable heater for workers which working in special environments. Polydimethylsiloxane/Poly(3,4-ethylenedioxythiophene)/MWCNT-COOH@polyester-latex mesh fabric (PPM@PLF) with excellent duel-driven heating properties was prepared via an improved in situ enzymatic polymerization method. To obtain the sturdy and higher conductivity, MWCNT was used to complete the construction of weak conductive layer before coating the Poly(3,4-ethylenedioxythiophene) (PEDOT) to obtain more continuously conductive paths. PPM@PLF provided enough heat energy for human body and use as thermal therapy application. In addition, PPM@PLF could be used as a strain sensor due to its remarkable sensing property. In summary, we have obtained a multifunctional conductive textile via the green in situ enzymatic polymerization method.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Duan Chen,Hao Tan,Tianyi Xu,Wei Wang,Hezhang Chen,Jie Zhang
Micro–nanofabrication of conductive polymers (CPs) with functional structures is in great demand in organic electronic devices, micro-optics, and flex sensors. Here, we report the fabrication of micropatterned poly(3,4-ethylenedioxythiophene) (PEDOT) and its applications on flexible electrochromic devices and tunable diffractive optics. The localized electropolymerization of 3,4-ethylenedioxythiophene at the electrode/agarose gel stamping interface through an electrochemical wet stamping (E-WETS) technique is used to fabricate PEDOT with functional microstructures. PEDOT microdots, micro-rectangles, and interdigitated array microelectrodes are fabricated with submicron tolerance and ∼2 μm smallest feature size. Furthermore, the flexible PEDOT electrochromic devices consisting of the logo of Xiamen University are fabricated with a reversible switch of absorptivity. The improved optical and coloration–amperometric responses of electrochromism are demonstrated because of the enhanced charge transport rate of the micropatterned PEDOT. The electrochromism of the 2D PEDOT micropatterns is further used as a binary diffractive optical element to modulate the intensity and efficiency of diffracted 2D structural light because of the switchable absorptivity during doping and dedoping processes. When the potential is switched from 1 to −1 V to tune the absorptivity at ∼600 nm from low to high, the intensity of zero-order diffraction light spot decreases with the intensity of other order diffraction light spots increasing dramatically. The results demonstrate that E-WETS provides an alternative method for the fabrication of CPs with functional micro–nanostructures. The electrochemical tunable diffraction with high reversibility and fast response is of potential applications in micro-optics and flex sensors.
研究领域:
有机电子学
·
微光学
·
传感器技术
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Karthick Ramalingam,Yuchao Zhu,Jian Wang,Mengjun Liang,Qiang Wei,Xuncai Chen,Fei Sun,Deyang Chen,Zhang Zhang,Su Htike Aung,Than Zaw Oo,Fuming Chen
Both low-energy consumption and high salt removal rate are highly required in the electrochemical desalination. In this work, a conducting polymer poly(3,4-ethylene-dioxythiophene), i.e., PEDOT, is electrochemically decorated on a graphite foil as an electrode material of redox-flow desalination (RFD). At a current density of 2 mA·cm–2, the energy consumption of the RFD is reduced to 38.1 kJ·mol–1 with PEDOT-modified electrodes, compared with 154.5 kJ·mol–1 using a bare graphite electrode. Meanwhile, the salt removal rate is enhanced to 1.54 μmol·cm–2·min–1 using the PEDOT electrode from 1.11 μmol·cm–2·min–1 in the bare graphite electrode. The PEDOT electrodes can also provide excellent cycling stability. The improved performance may be due to the promising conductivity and porous structure of PEDOT, which would supply more active sites between the electrode and the redox electrolyte. The current research provides an electrochemical desalination strategy with low energy consumption and high salt removal rate, which is significant for the development of RFD technology.
研究领域:
环境科学
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材料科学
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电化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2022
·Vol. 51
·期 3
·1128-1136
·
IF 2.047
He Yi,Li Ying,Yuan Ying,Shu Jun,Deng Xiaoyan,Li Lu
Wearable pressure sensors with an ultra-wide linearity range and high sensitivity have atttracted increasing interest on account of their great potential applications in artificial tactile sensing, human health monitoring and care systems. Herein, poly(3,4-ethylenedioxythiophene) (PEDOT) was in situ synthesized on non-woven fabric and served as the sensing layer to realize highly reliable wearable all-fabric pressure sensors. Because of the surface microstructure of the PEDOT-coated fabric, such pressure sensors exhibited excellent performance, which included a high sensitivity of 5.95 kPa -1 , wide working range (0-200 kPa) and fast response/recovery time (11/15 ms). Their practical applications in human physiological signal monitoring are further demonstrated, showing their potential as wearable electronics in health monitoring.
研究领域:
材料科学
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生物医学工程
·
可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Yirong Wang,Xin Ai,Shenzhou Lu,Tieling Xing,Ning Qi,Guoqiang Chen
Flexible high-conductivity fibers have attracted much attention due to their great potential in the field of wearable electronic devices. However, how to ensure high conductivity and flexibility is still a challenge. In this paper, the flexible silk fibers were used as the substrate, and manganese oxides were generated on the surface by potassium permanganate treatment. On this basis, the flexible high conductivity silk fibers with a resistivity of 1.47 Ω·cm were prepared by in-situ chemical polymerization of 3,4-ethylenedioxythiophene(EDOT) on the surface of silk fibers. The surface morphology and chemical composition of silk fibers were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma emission spectrometry (ICP). The results confirmed that a large amount of MnO 2 was synthesized and deposited on the surface of the silk fibers. The flexible conductive silk prepared by this method had good temperature sensitivity (- 0.47%/K), good stability and repeatability under cyclic tension, and the relative resistance change rate was 9.1%. Meanwhile, due to the binding force between the surface-active groups of the silk fibers and poly(3,4-ethylenedioxythiophene) (PEDOT), the conductive silk fibers exhibited good stability against water washing, demonstrating a broad application prospects in the field of wearable sensors .
研究领域:
材料科学
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生物医学工程
·
纺织科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2016
·Vol. 18
·期 12
·1-9
·
IF 2.101
Song Haijun,Cai Kefeng,Shen Shirley
Firstly, tellurium (Te) nanorods with a high Seebeck coefficient have been integrated into a conducting polymer PEDOT/PSS to form PEDOT/PSS/Te composite films. The Seebeck coefficient of the PEDOT/PSS/Te (90 wt.%) composite films is ~191 μV/K, which is about 13 times greater than that of pristine PEDOT/PSS. Then, H 2 SO 4 treatment has been used to further tune the thermoelectric properties of the composite films by adjusting the doping level and increasing the carrier concentration. After the acid treatment, the electrical conductivity of the composite films has increased from 0.22 to 1613 S/cm due to the removal of insulating PSS and the structural rearrangement of PEDOT. An optimized power factor of 42.1 μW/mK 2 has been obtained at room temperature for a PEDOT/PSS/Te (80 wt.%) sample, which is about ten times larger than that of the untreated PEDOT/PSS/Te composite film.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2021
·
IF 4.094
Chenhuinan Wei,Houhuang Zhou,Qiming Liu
PCN-222, a kind of zirconium-based porphyrinic metal-organic frameworks, was decorated on poly 3,4-ethylenedioxythiophene (PEDOT) films modified ITO electrode to fabricate a sensitive chloramphenicol (CAP) sensor. The designed PCN-222-CHIT/PEDOT/ITO sensor combined the CAP adsorption of PCN-222 and the good conductivity of PEDOT films. Cyclic voltammetry and differential pulse voltammetry techniques was examined to investigate the electrochemical performances of this sensor. Under the optimized experimental condition, the proposed sensor exhibited an ultralow detection limit of 0.0018 μM (S/N = 3). Good anti-interference ability and reproducibility were also displayed. Furthermore, the designed sensor realized the accurate detection of CAP in the real sample.
研究领域:
分析化学
·
环境科学
·
药物分析
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2024
·
IF 4.1
Xuemei Ma,Yali Gao,Wanyu Pang,Xile Chang,Zhiyong Hu,Tuoping Hu
The design of efficient electrocatalysts for the determination of chlorogenic acids (CGA) is crucial in the biological and medical fields. In this paper, ZIF-67/poly(3,4-ethylenedioxythiophene) (PEDOT) nanocomposites were synthesised. The introduction of PEDOT increased the electrical conductivity of the ZIF-67/PEDOT composites, inhibited the Co atom agglomeration, led to the exposure of more active sites and increased the transport channels. An ultrasensitive CGA sensor based on ZIF-67/PEDOT nanocomposite modified carbon paper (CP) electrode was developed. The nanomaterials were characterised using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction spectroscopy (XRD). Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to study the electrochemical properties of the modified CP electrode. In addition, the effects of different experimental conditions such as pH, scan rate and concentration on the peak current of CGA were investigated. Under the optimised conditions, the linear range of ZIF-67/PEDOT/CP for the determination of CGA was 0.1 ∼ 40 μM, and the limit of detection (LOD) was as low as 0.003 μM (S/N = 3). Furthermore, the sensor was successfully used for the quantitative analysis of CGA in real samples.
研究领域:
生物医学
·
分析化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2016
·Vol. 40
·期 3
·2304-2314
·
IF 3.277
Zilan Feng,Daize Mo,Weiqiang Zhou,Qianjie Zhou,Jingkun Xu,Baoyang Lu,Shijie Zhen,Zhipeng Wang,Xiumei Ma
In this work, poly(N-methyl-3,4-dihydrothieno[3,4-b][1,4]oxazine) (PMDTO), a new nitrogen poly(3,4-ethylendioxythiophene) (PEDOT) analogue, was synthesized by an electrochemical deposition method, and the capacitive properties of PMDTO were investigated and compared with those of PEDOT. The structure and morphology of PMDTO were characterized by ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and thermal analysis. The pseudocapacitive properties of the as-prepared PMDTO electrodes have been examined by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) measurements and electrochemical impedance spectroscopy (EIS) in 0.1 mol L−1 CH3CN–Bu4NBF4 electrolyte solution. The as-prepared PMDTO electrode showed a high specific capacitance of 154.3 F g−1 at a discharge current density of 3 A g−1 and exhibited cycling stability with the maximal capacitance retention of nearly 71% after 500 cycles at a high current density of 10 A g−1. Additionally, the asymmetrical supercapacitor based on PMDTO and PEDOT electrodes exhibited a maximum specific capacitance of 63.5 F g−1 and an energy density of 12.7 W h kg−1 at a power density of 0.59 kW kg−1. These results implied that the PMDTO electrode can be used as a potential electrode material for supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE
·
2021
·Vol. 60
·期 5
·794-802
·
IF 0
Jiarui Yu,Nan Gao,Xiaowen Xie,Xing Xin,Zhanqi Li,Shuai Chen,Jingkun Xu
Thermally healing capability of cracks and defects is important and urgent for the safe operation and life extending of electric materials and devices. Here, by the combination of thermally driven reversible Diels–Alder (DA) interaction and in-situ chemical oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT), a series of intrinsically conductive poly(3,4-ethylenedioxythiophene) (PEDOT)/DA composites possess intrinsically self-healing property under low-temperature (reverse DA reaction at 100°C; DA crosslinking at 60°C) stimulus were achieved. The crosslinking DA bonding reactions are multiple from the co-existence of pre-synthesized macromolecular polyurethane attached DA units (PU-DA) and 2,4-hexadiyne-1,6-diol (DADOL) in the films. PU-DA involved in the polymerization process of EDOT to endow PEDOT with outstanding solution-processability, uniform film making, and structural self-healing capability, while DADOL was added to enhance the cross bonding between polymer chains. This work will accelerate the research and application development of intrinsically self-healing conducting polymers for commercial capacitors, antistatic coatings, implantable, printable electronics, and so on. Graphical
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
危险品化学品经营许可证（带存储）