Nanoscale Research Letters
·
2015
·Vol. 10
·期 1
·1-9
·
IF 2.779
Zhang Li,Jamal Ruxangul,Zhao Qin,Wang Minchao,Abdiryim Tursun
The nanocomposite materials of poly(3,4-ethylenedioxythiophene)/graphene oxide (PEDOT/GO), poly(3,4-ethylenedioxythiophene)/MnO 2 (PEDOT/MnO 2 ), and poly(3, 4-ethylenedioxythiophene)/graphene oxide/MnO 2 (PEDOT/GO/MnO 2 ) were successfully prepared by facile and template-free solution method. The structure and morphology of nanonanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible absorption spectra (UV–vis), field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDX), respectively. The catalytic activities of nanocomposites were investigated through the degradation processes of methylene blue (MB) solution under dark, UV light, and nature sunlight irradiation, respectively. The results displayed that nanocomposites were successfully synthesized, and PEDOT/GO had higher conjugation length and doped degree than pure PEDOT. However, the introduction of MnO 2 could lead to the reduction of conjugation length and doped degree in PEDOT/MnO 2 and PEDOT/GO/MnO 2 nanocomposites. The field emission scanning electron microscope (FESEM) analysis also showed that both MnO 2 and GO had some effect on the morphology of nanocomposites. The catalytic activities of pure PEDOT and nanocomposites were in the order of PEDOT/GO/MnO 2 > PEDOT/MnO 2 > PEDOT/GO > pure PEDOT. Besides, the catalytic results also showed that the highest degradation efficiency of MB after 7 h occurred in the PEDOT/GO/MnO 2 composite in three irradiation.
研究领域:
材料化学
·
环境催化
·
纳米材料科学
·
高分子化学
·
光催化
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 4
·1-10
·
IF 6.232
Ge Yi,Jamal Ruxangul,Zhang Ruanye,Zhang Wenli,Yu Zongna,Yan Yinqiang,Liu Yingcheng,Abdiryim Tursun
A multilayered film of poly(3,4-ethylenedioxythiophene)/poly(thiomethyl 3,4- ethylenedioxythiophene)/gold nanoparticle (PEDOT/PEDOT-SH/Au) nanocomposites was successfully synthesized on indium tin oxide (ITO) and glassy carbon electrode (GCE) via an electrochemical technique. The structure and morphology of the composite was characterized by FT-IR, UV-vis, EDS, XPS, and SEM analyses. The prepared multilayered PEDOT/PEDOT-SH/Au nanocomposite was used for the electrochemical catalytic oxidation of nitrite by amperometry. The results showed that the microstructures of PEDOT/PEDOT-SH/Au nanocomposites are not strongly dependent on the substrate. Fibrous PEDOT as hard template absorbed EDOT-SH on it to form porous PEDOT/PEDOT-SH. Porous structure had the advantages of large specific surface area and high porosity for nitrite ion adsorption. The thiol group in PEDOT/PEDOT-SH stabilized Au nanoparticles (NPs) effectively through Au-S bond and allowed Au NPs to have high dispersion and excellent electrocatalytic activity. The PEDOT/PEDOT-SH/Au composite prepared on GCE had a good performance in its electrochemical response to nitrite ions. PEDOT/PEDOT-SH/Au/GCE displayed a low oxidation potential (0.74 V), a fast response time (< 3 s), a low detection limit (0.051 μM), two linear ranges (0.15–1 mM and 1–16 mM), good sensitivity (0.301 μA μM −1 cm −2 and 0.133 μA μM −1 cm −2 ) with good reproducibility, stability, and selectivity.
Schematic representation of the preparation process of the nitrite ion electrochemical sensor
研究领域:
分析化学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2015
·
IF 2.729
Xue Chen,Xiaoshu Zhu,Yinghong Xiao,Xiaodi Yang
A novel electrode material for supercapacitor composed of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT) and graphitic-phase C 3 N 4 (g-C 3 N 4 ) was prepared by a layer-by-layer assembly method. The resulting composite of PEDOT/g-C 3 N 4 represented excellent electrochemical stability in neutral electrolyte and enhanced electrochemical performance of capacitance and average energy density in comparison with single PEDOT. The specific capacitance was 137 F g −1 in H 2 SO 4 and 200 F g −1 in Na 2 SO 4 at a current density of 2 A g −1 , respectively. More significantly, the average energy density was 9.65 W h kg −1 at an average power density of 4001.86 W kg −1 in H 2 SO 4 . While in Na 2 SO 4 , the average energy density reached 17.5 W h kg −1 at an average power density of 5000 W kg −1 . More than 89% and 96.5% of capacitance were retained in H 2 SO 4 and Na 2 SO 4 respectively, suggesting that PEDOT/g-C 3 N 4 possessed an excellent cycling stability in view of capacity performance as electrode materials. The property improvement was attributed to the synergistic effects of the two components in the composite.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Fang Wang,Xianhong Zhang,Le Yang,Dehong Xu,Yuhong Ma,Dong Chen,Li Wang,Changwen Zhao,Wantai Yang
A composite of a core–shell structured nanowires with ZnO as a core and conductive poly(3,4-ethylenedioxythiophene) (PEDOT) as a shell was prepared. At first, the hexagonal ZnO nanowires, with diameter of about 80–100 nm and length 4–5 μm, were fabricated by hydrothermal synthesis process. Then a thick layer of poly(trifluoroethyl methacrylate)- block -poly(sodium styrene sulfonate) (PTFEMA- b -PSSNa) was grafted from the surface of ZnO nanowires via atom transfer free radical polymerization. At last, with the ZnO@PTFEMA- b -PSSNa as a template and the PSSNa chain as the counterion dopant, PEDOT was precipitated onto the surface of the template to form the composite of ZnO@PEDOT/PSSNa. With the evaluation of the EDOT polymerization, the thickness of the PEDOT layer increased steadily. However, as the ratio of EDOT/ZnO was greater than 1:2, the ZnO nanowires templates were dissolved at last and then PEDOT particles were produced due to increasing of the acidity during the oxidation polymerization of EDOT. In this case, the product was the mixture of the nanotubes and particles of PEDOT/PPSNa. The electrochemical capacitances of the composites with different structures were investigated with cyclic voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy techniques with three-electrode cell configuration. The maximum specific capacitance of ZnO@PEDOT electrode can reach 101.34 F/g at 20 mV/s.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Fang Wang,Xianhong Zhang,Yuhong Ma,Dong Chen,Wantai Yang
A novel flexible dielectric composite with halloysite nanotube-poly(3,4-ethylenedioxythiophene) (HNTs-PEDOT) hybrid as conductive filler and poly(vinylidene fluoride) (PVDF) as polymer matrix were prepared via a blending and hot-pressing technique. HNTs-PEDOT hybrid, with PEDOT coated onto both the negatively charged inner and out surfaces of the HNTs tubes, were fabricated by chemical oxidative polymerization of EDOT with unmodified HNTs as templates. The conductivity of HNTs-PEDOT hybrid with 50 wt% HNTs is up to 12.89 S/cm, which is 100 times greater than that of pure PEDOT (about 0.12 S/cm) synthesized under the similar condition. With PEODT as outside organic layer, HNTs-PEDOT could be easily dispersed in PVDF matrix uniformly. In addition, with the introduction of HNTs-PEDOT into PVDF matrix, it makes a phase transformation of PVDF from α to electroactive β phase. HNTs-PEDOT/PVDF shows good dielectric performance. At close to the percolation threshold value ( f HNTs-PEDOT = 0.11), the dielectric constant of HNTs-PEDOT/PVDF is up to 641 at 1000 Hz, which is attractive to prepare flexible materials.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 20
·17367-17373
·
IF 2.324
Tian Zi-Han,Liu Hai-Hui,Wang Ning,Liu Yan-Xin,Zhang Xing-Xiang
Poly (3,4-ethylenedioxythiophene) nanowires (PEDOT NWs) with high electric conductivity were synthesized by a facile self-assembled micellar soft-template method. And then, Bi 2 Te 3 powders and Bi 2 Te 3 nanowires (Bi 2 Te 3 NWs) were added as inorganic filler to form the PEDOT NWs/inorganic nanocomposite films by a simple and convenient vacuum filtration method. The thermoelectric (TE) properties of the flexible films were characterized. PEDOT NWs film exhibited the high σ value of 249.5 S cm −1 and does not require any treatment at room temperature. By incorporating both Bi 2 Te 3 powders and Bi 2 Te 3 NWs into these PEDOT NWs, the power factor of the polymer/inorganic composite materials is enhanced. The resulting PEDOT NWs/Bi 2 Te 3 powders nanocomposite film exhibited a high power factor of 7.49 µW m −1 K −2 compared to that of 2.54 µW m −1 K −2 in PEDOT NWs. A maximum power factor of 9.06 µW m −1 K −2 is obtained from the PEDOT NWs/Bi 2 Te 3 NWs composite film containing 10 wt% Bi 2 Te 3 NWs at room temperature, which is about 3 of times that of the pure PEDOT NWs film. These composites provide a promising route to flexible and high-performance thermoelectric materials.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
SYNTHETIC METALS
·
2014
·
IF 2.222
Youxiong Zhang,Mingliang Xin,Weihong Lin,Zhiwei Yu,Jun Peng,Kai Xu,Mingcai Chen
The synthesis by in situ oxidative polymerization of poly(5-methoxyl-2-(3-sulfopropoxyl)-1,4-phenylenevinylene) (MPS-PPV)/poly(3,4-ethylenedioxythiophene) (PEDOT) composite particles with high surface area in aqueous dispersion of MPS-PPV was reported. The nanostructure and growth mechanism of MPS-PPV/PEDOT composite particles were investigated in detail by FE-SEM and TEM, as well as XRD. PEDOT appeared to have used the tangled-worm like structures of MPS-PPV assembled in the presence of FeCl 3 as a scaffold for polymerization, wrapping itself around the tangled worms like bark on a tree. Cyclic voltammetry (CV) was used to qualitatively characterize the pseudo-capacitance properties of MPS-PPV/PEDOT composite particles. Their mass-specific capacitance and cycling stability were calculated by cyclic voltammetry cycles at different potential scan rates. The results showed that the maximum mass specific capacitance for MPS-PPV/PEDOT composite particles increases with the increase of the weight ratio of MPS-PPV, which can be achieved as high as 102 F g −1 . Moreover, the materials exhibited high cycling stability and retained approximately 45% of their maximum total capacitance, which was higher than that of pure PEDOT (approximately 40%), as the scan rate approaches 25 mV s −1 . These results make the composite materials available in the field of electronic devices.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yingyi Ma,Kaizheng Xu,Xiaoting Liu,Shun Yao,Xinzheng Li,Yu Si,Xinran Li
3D architectures of conductive polymer, especially PEDOT hold great promise in energy storage and conversion fields. However, the facile construction of 3D PEDOT and its functionalization have still been challenges due to its poor processability. Herein, the fabrication of 3D porous PEDOT:PSS and its functionalization with MXene are realized synchronously through a simple and low-cost self-assembly process. The prominent capacitive performance of MXene, excellent chemical stability of PEDOT:PSS and 3D porous architecture with inhibited aggregation of MXene nanosheets, large amount of active sites, and electrolyte storage chamber endow the PEDOT/MXene-based porous structure with superior capacitive performance than individual PEDOT:PSS or MXene porous and flat structures. Furthermore, the PEDOT/MXene-based porous structure can be applied as a flexible scaffold for the deposition of conductive polymer to construct excellent electrodes for supercapacitors (SCs). When polypyrrole (PPy) is deposited, the prepared porous PEDOT:PSS/MXene/PPy electrode exhibits a high gravimetric specific capacitance of 345 F g −1 at a current density of 0.5 A g −1 and a remarkable capacitance retention of 89 % over 5000 cycles. Based on it, an asymmetric supercapacitor (ASC) with a high energy density of 56.34 Wh kg −1 at the power density of 120 W kg −1 , and a capacitance retention of 75 % after 5000 cycles is developed. Besides, the porous PEDOT:PSS/MXene/PPy can be constructed on various substrates in any pattern with high design freedom, thus enabling customizable electrochemical performance. When constructing on a flexible substrate, excellent deformation-tolerant performance is shown. This work provides a high-performance electrode for SCs, as well as a universal route for the construction and functionalization of 3D PEDOT-based structures.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 135
·期 40
·46729
·
IF 1.901
Haiyan Du,Xiaoxiao Liu,Zhe Ren,Huimin Yang,Yunlong Yu
Poly(3,4-ethylenedioxythiophene) (PEDOT) film has been prepared on conductive carbon paper (CP) substrates by unipolar pulse electrochemical deposition. The effects of different polymerization parameters, including pulse potential and width, deposition frequency, and duty cycle on the capacitance of PEDOT films, were studied by cyclic voltammetry in 0.5 M sulfuric acid solution. The PEDOT-coated CP electrode was characterized by scanning electron microscopy and Fourier transform infrared spectroscopy to confirm the three-dimensional porous structure and the presence of dopant ion conjugation during the electro-polymerization. The results of cyclic voltammetry and galvanostatic charge-discharge show that the PEDOT electrodes exhibit good specific capacitance of 151.31 F/g, rate performance and stability with a retention rate of 80.25% after 5000 cycles. The thin, lightweight electrode materials show considerable potential for low-cost, high-performance energy storage applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46729.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2020
·
IF 6.984
Peiyu Tan,Feifei Lu,Yuge Han
A new type of device with adjustable reflective capabilities in the mid-IR is elaborated from the combination of Poly (3,4-ethylenedioxythiophene)/Poly (styrenesulfonate) (PEDOT/PSS), gold-coated non-porous polyimide substrate and gel electrolyte. Prior to device characterization, the influence of polymer thickness and gold substrate types on reflectance modulation of PEDOT-Au films is scrutinized to obtain the film with optimum quality. A combination of SEM images and reflectance curves confirms that adopting thin PEDOT/PSS on the non-porous substrate can achieve large amplitude reflectance regulation. Further, a mechanical perforating method is developed to address the issue that ions cannot transport between the polymer film and the counter electrode when this PEDOT/non-porous film assembled into device. An in-depth study shows that by varying the punching side, porosity and aperture, a device with front holes of porosity 12.77% affords the highest reflectance contrast of 0.566 over the wavelength range of 3-5 μm, meanwhile exhibits effective temperature changes of approximately 16 °C. These results inspire interesting perspectives regarding the fabrication of PEDOT-based devices with controllable IR electroreflective performance.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Fang Jia,Ruili Wu,Chan Liu,Jinle Lan,Yuan-Hua Lin,Xiaoping Yang
Recently, aerogels have been considered as hopeful thermoelectric (TE) materials because of their unique ultralow thermal conductivity compared to conventional bulk/film materials. However, their electrical conductivity cannot meet the requirement of good TE materials due to their highly porous feature. Herein, we composited poly(3,4-theylenedioxythiophene) (PEDOT) with SWCNT and bacterial cellulose (BC) to synthesize nanoporous PEDOT/SWCNT/BC films that can achieve high electrical and low thermal conductivity simultaneously by post-processing of their hybrid aerogels. A relatively high electrical conductivity of 290.6 S/cm and a low thermal conductivity of 0.13 W m–1 K–1 have been achieved for free-standing PEDOT/SWCNT/BC-32% film at room temperature. Furthermore, the films show an outstanding flexibility and fracture strength of 1.6 MPa and an elongation at break of 2.13%. The unique advantages of excellent flexibility and high electrical conductivity as well as low thermal conductivity make PEDOT/SWCNT/BC films have broad prospects in wearable thermoelectric applications.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2020
·
IF 3.807
Zhenzhen Liu,Li Wang,Yingxi Xu,Jianyu Guo,Siyong Zhang,Yan Lu
In this study, Ti 3 C 2 T X @PEDOT composite is synthesized using multilayer Ti 3 C 2 T X and conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) by a simple in-situ polymerization method. The PEDOT component effectively solves the problem of Ti 3 C 2 T X layers stacking and further improves the specific surface area of Ti 3 C 2 T X . Besides, additional pseudocapacitance is also provided by the added PEDOT component. In 1 M H 2 SO 4 , the Ti 3 C 2 T X @PEDOT (1:10) composite exhibits a higher capacitance (564 F g −1 ) at the current density of 1 A g −1 compared to the original Ti 3 C 2 T X material, and excellent cycling performance with a capacitance retention of 96.5% after 10,000 charge/discharge cycles at a current density of 10 A g −1 . The Ti 3 C 2 Tx@PEDOT(1:10)-based symmetric supercapacitor shows a specific capacitance of 100 F g −1 at the current density of 1 A g −1 , and an energy density of 6.34 Wh kg −1 at the power density of 4077 W kg −1 . The enhanced electrochemical performance and stability are due to the surface redox process and synergistic effects of the Ti 3 C 2 T X @PEDOT.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）