International Journal of Electrochemical Science
·
2023
·
IF 1.5
Baoyang Lu,Yao Lu,Yangping Wen,Xuemin Duan,Jingkun Xu,Shuai Chen,Long Zhang
A novel chiral L-alanine-modified 3,4-ethylenedioxythiophene (EDOT) precursor, (2S)-(2,3-dihydrothieno[3,4- b ][1,4]dioxin-2-yl)methyl 2-( tert -butoxy carbonylamino)propanoate (EDOT-Boc-Ala), was synthesized and electropolymerized in CH 2 Cl 2 –Bu 4 NBF. The corresponding polymer, poly((2S)-(2,3-dihydrothieno[3,4- b ][1,4]dioxin-2-yl)methyl 2-( tert -butoxy carbonylamino)propanoate) (PEDOT-Boc-Ala) film showed good redox activity and stability. The electrochemical behavior, structural characterization, chirality, solubility, spectroscopic properties, thermal stability, and morphology of PEDOT-Boc-Ala film were investigated. Both doped and dedoped PEDOT-Boc-Ala film could well dissolve in strong polar solvents such as dimethyl sulfoxide, tetrahydrofuran, and acetone, etc. The determination of specific rotation showed that the electropolymerization of EDOT-Boc-Ala did not influence its conformation and the polymer exhibited an enhanced specific rotation ([α] 20.0 = -191.08°) in comparison with that of the monomer ([α] 20.0 = -30.77°). Moreover, the amperometric biosensor based on PEDOT-Boc-Ala film (as immobilization matrix of biologically-active species) was successfully fabricated and employed to determine the concentration of vitamin C.
研究领域:
材料科学
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分析化学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2021
·
IF 9.676
Wenna Liu,Xiaoxiao Li,Weijun Li,Yumin Ye,Hong Wang,Peipei Su,Weiyou Yang,Ya Yang
Conductive polymers as one of the candidate materials with pseudocapacitor behavior have inspired wide attentions, because of their high conductivity, flexibility, low cost and excellent processability. However, the intrinsically poor cycling stability induced by the volume change over the doping/dedoping redox process limits their practical applications. Herein, we report the exploration of electrodes with robust cycling capacity for supercapacitors (SCs), which are rationally designed by coating conductive poly(3,4-ethylenedioxythiophene) (PEDOT) around free-standing SiC nanowires using an all-dry oxidative chemical vaper deposition (oCVD) method. The as-constructed SiC@PEDOT nanowire architecture enables a specific capacitance of 26.53 mF/cm 2 at 0.2 mA/cm 2 , which is ~370% to that of SiC nanowire counterpart (7.04 mF/cm 2 ). Moreover, their aqueous-based SCs exhibit robust cycling stability with 104% capacity retention after 10000 cycles, which is among the highest values achieved for PEDOT-based SCs.
研究领域:
材料科学
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电化学
·
纳米技术
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2020
·Vol. 27
·期 5
·2583-2597
·
IF 4.21
Chang Ziyang,An Xianhui,Qian Xueren
Abstract Rapid development of flexible electronics has raised the demand for renewable conductive materials. Biomass-derived cellulose fibers (CFs) are very promising candidates due to their outstanding advantages. In this paper, flexible, lightweight and freestanding biomaterial with high electrical conductivity was prepared via in situ chemical polymerization process using 3,4-ethylenedioxythiophene (EDOT) and CFs. In order to improve the performance of PEDOT/CFs, novel combined small-sized anion doping agents, sulphosalicylic acid (SSA) and sodium benzenesulfonate (SBS), were adopted to construct a well-organized conducting layer. The obtained PEDOT layer possessed good crystallinity and high doping level and was uniformly coated onto the surface of CFs through the dopant-dependent interface. The PEDOT:SSA-SBS/CFs exhibited electrical conductivity as high as 472 S/m and the mass loading was up to 1.92 mg/cm 2 . Moreover, the flexible biomaterial displayed favorable electrochemical stability. Hence, the results presented here provide a new way to produce highly conducting and flexible biomaterial. Graphic abstract
研究领域:
材料科学
·
柔性电子学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yacong Yang,Zhihao Cao,Tianhan Shen,Junyang Zhang,Zuofei Gu,Mingwan Zhao,Zongli Xie,Yingchun Miao,Yuning Huo,Hexing Li
The photocatalytic membrane systems show great potential for water purification and wastewater treatment with efficient energy utilization. Herein, we develop a synergistic photocatalytic-photothermal route, based on Pd-TiO 2 /PEDOT composite immobilized in PVDF membrane, for effective water permeability and reutilization property. Novel Pd-TiO 2 /PEDOT/PVDF ultrafiltration membrane is prepared by the phase inversion method with immobilizing Pd-TiO 2 /PEDOT obtained by ultrasonic irradiation. During the removal of HA under light irradiation, Pd-TiO 2 /PEDOT/PVDF membrane presents an unexpected increasing in water flux, when compared to pristine PVDF, Pd-TiO 2 /PVDF and PEDOT/PVDF membranes, with the highest normalized flux reaches up to 2.1 and remains as 1.3 even after 300 min of irradiation. This significantly enhances the water transport, along with the achieved high rejection and anti-fouling performance. It can be attributed to synergistic photocatalytic-photothermal effect of Pd-TiO 2 /PEDOT, which is realized by their strong interaction and uniform distribution. The addition of PEDOT promotes photocatalytic effect of Pd-TiO 2 by enhancing separation of photo-induced charges. High photothermal conversion efficiency of Pd-TiO 2 /PEDOT and low temperature difference in Pd-TiO 2 /PEDOT/PVDF membrane facilitate effective thermal storage, beneficial for water transport. Meanwhile, thermal energy promotes generation of more ∙OH and ∙O 2 – radicals to remove pollutants. Synergistic photocatalytic-photothermal contribution in Pd-TiO 2 /PEDOT/PVDF membrane shows significant potential for practical application.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2020
·
IF 2.87
Tingting Xu,Dechong Kong,Huijie Tang,Xiulan Qin,Xuanhua Li,Ashim Gurung,Kaichang Kou,Lixin Chen,Qiquan Qiao,Wei Huang
Dye-sensitized solar cells (DSSCs) are solar energy conversion devices with high efficiency and simple fabrication procedures. Developing transparent counter electrode (CE) materials for bifacial DSSCs can address the needs of window-type building-integrated photovoltaics (BIPVs). Herein, transparent organic–inorganic hybrid composite films of molybdenum disulfide and poly(3,4-ethylenedioxythiophene) (MoS2/PEDOT) are prepared to take full advantage of the conductivity and electrocatalytic ability of the two components. MoS2 is synthesized by hydrothermal method and spin-coated to form the MoS2 layer, and then PEDOT films are electrochemically polymerized on top of the MoS2 film to form the composite CEs. The DSSC with the optimized MoS2/PEDOT composite CE shows power conversion efficiency (PCE) of 7% under front illumination and 4.82% under back illumination. Compared with the DSSC made by the PEDOT CE and the Pt CE, the DSSC fabricated by the MoS2/PEDOT composite CE improves the PCE by 10.6% and 6.4% for front illumination, respectively. It proves that the transparent MoS2/PEDOT CE owes superior conductivity and catalytic properties, and it is an excellent candidate for bifacial DSSC in the application of BIPVs.
研究领域:
材料科学
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太阳能
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Mariyam Niyaz,Nurbiye Sawut,Ruxangul Jamal,Tursun Abdiryim,Zulpikar Helil,Haile Liu,Shuyue Xie,Yanyan Song
In this paper, Pt nanoparticles (Pt NPs) deposited hybrid carbon support is prepared by modifying double-layered hollow carbon spheres（DLHCs）with poly(3,4-ethylenedioxythiophene) (PEDOT) and used as anode catalyst of methanol oxidation . The structure of nanocomposites is characterized by SEM, TEM , FT-IR, XRD and XPS , confirming the greatly enhanced synergistic effect between the PEDOT and DLHCs, and illustrating the uniform distribution of Pt NPs on the PEDOT/DLHCs composite surface with a small particle size (~2.63 nm). Cyclic voltammetry , chronoamperometry and impedance spectroscopy applied to determine the electrocatalytic activity of catalysts, it is found that the synthesized PEDOT/DLHCs/Pt possesses excellent characteristics such as large electrochemically active surface area and high mass activity of 59.45 m 2 g −1 and 807 mA mg −1 in 0.5 M H 2 SO 4 containing 1 M methanol solution, which is almost 1.24 and 2.8 times greater than those of commercial Pt/C, and the catalyst exhibits superior stability after 500 durability cycles. The enhanced electrocatalytic behavior can be ascribed to the excellent electronic conductivity of PEDOT-modified DLHCs and the strong binding of PEDOT/DLHCs to Pt NPs, suggesting that the PEDOT/DLHCs/Pt is a promising electrocatalyst for direct methanol fuel cell.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Yue Cai,Liming Xu,Huan Kang,Weiqiang Zhou,Jingkun Xu,Xuemin Duan,Xinyu Lu,Quan Xu
An active material electrode with high areal specific capacitance is needed for a high-performance supercapacitor, but it is difficult to achieve this goal for PEDOT-based composites. Here, a novel hierarchical core/shell PEDOT@MoS 2 composite was assembled by the electrochemical co-deposition of EDOT and MoS 2 submicron spheres. The SEM, TEM images of the as-obtained composite explicitly reveal the core/shell heterostructure of PEDOT@MoS 2 with a diameter of about 800 nm. The electrochemical characterizations show that the optimized PEDOT@MoS 2 composite possesses a high specific capacitance of 2540 mF cm −2 at 1 mA cm −2 and excellent capacitance retention of 98.5% after 5000 cycles at a high current density of 100 mA cm −2 . The assembled P@M-4//PEDOT asymmetric supercapacitor shows a high energy density of 937 Wh m − 2 at 6500 W m − 2 , and outstanding cycling stability with capacitance retention of 100% after 5000 cycles. It is proposed that the enhanced performances are attributed to the robust hierarchical core/shell structures and the synergic effect between PEDOT and MoS 2 , which is expected to become a promising candidate for applications in high-performance supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2019
·Vol. 24
·期 2
·441-445
·
IF 2.531
Chen Xiaoming,Zhang Jingyan
A novel electrochromic polymer poly(2,3-dimethyl-2,3-dihydrothieno[3,4-b][1,4]dioxine) (PEDOT-Me 2 ) based on 3,4-ethylenedioxythiophene (EDOT) with symmetric dimethyl pendant groups was successfully synthesized through electrochemical polymerization in 0.1 M LiClO 4 /ACN electrolyte. The polymer film displays reversible electrochromism switching between blue neutral state (− 1.2 V) and transmissive sky blue oxidized state (0.5 V) with an enhanced optical contrast (Δ T = 30%) in comparison with the traditional PEDOT (Δ T = 25%).
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Haopeng Jing,Kun Li,Shuling Xiang,Ran Jiang,Jumei Zhou,Hongliang Zhang
WO3 with nanocrystal-in-glass (nanocrystal-embedded amorphous matrix) characteristics is recognized as a highly promising electrochromic material. The demand for flexible and large-area electrochromic technologies is pushing the advancement of low-temperature and large-scale processes for WO3 thin films. This study presents a functional ink designed for the low-temperature preparation of WO3 thin films using blade-coating technology, enabling scalable and cost-effective production. The optimized WO3:Ti-PEDOT hybrid electrochromic thin film demonstrates a high light modulation rate of 86.05% (@ 633 nm), a coloration efficiency of 54.1 cm2 C–1, an outstanding cycle stability exceeding 1000 cycles, and an ionic diffusion coefficient of 3.69 × 10–8 cm2 s–1. One reason for the remarkably improved electrochromic performance is the synergistic effect of the nanostructured WO3 glass-nanocrystal composites induced by Ti doping and the enhanced electrochemical reaction kinetics facilitated by the use of poly(3,4-ethylenedioxythiophene) (PEDOT), a conductive polymer, as a binder. This work demonstrates a feasible and cost-effective method for producing WO3-based films for electrochromic smart windows, serving as an alternative to the existing vacuum-based WO3 thin film production methods.
研究领域:
材料科学
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能源技术
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 40
·18803-18810
·
IF 3.3
Yanmei Liang,Danqin Li,Yao He,Shixing Chao,Mingming Zhang,Xueqian Zhao,Weiqiang Zhou,Jingkun Xu,Baoyang Lu
The development of asymmetric supercapacitors (ASCs) with high power and energy density is greatly restricted by the low capacitance of the anode materials. V2O5 is a promising anode material with high theoretical capacity, but its low conductivity and high dissolution are not conducive to applications in energy storage. Herein, oxygen-vacancy PEDOT/V2O5 ultrathin nanosheets with a thickness of about 4.4 nm are fabricated by the oxidative polymerization of EDOT monomers on V2O5 nanosheets in the absence of other oxidants. The results of XPS and EPR confirm that the polymerization of PEDOT increases the oxygen vacancy concentration of V2O5. The PEDOT/V2O5 nanosheets exhibit a specific capacitance of 406 F g−1 at 2 mV s−1 and excellent cyclic stability in the mixed organic electrolyte of dimethyl carbonate and ethylene carbonate. The energy density of ASCs composed of PEDOT/V2O5 as the anode and activated carbon as the cathode reaches 65 W h kg−1 at a power density of 1490 W kg−1. This means that PEDOT/V2O5 has enormous potential in high-energy storage.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Xinyu Lu,Yingying Li,Xuemin Duan,Yifu Zhu,Ting Xue,Liangmei Rao,Yangping Wen,Qingyun Tian,Yue Cai,Quan Xu,Jingkun Xu
A novel nanozyme sensor based on the electro-synthesized molecularly imprinted conducting poly(3,4-ethylenedioxythiophene) (PEDOT) nanocomposite with graphene-like two-dimensional layered molybdenum disulfide (MoS 2 ) was successfully prepared for electrochemical detection and analysis of luteolin in Gnaphalium affine. MoS 2 -MIPs were prepared facilely by electrochemical polymerization of monomer 3,4-ethylenedioxythiophene in the presence of both modifier MoS 2 and template molecule luteolin that can change the morphological structure and specific surface area of PEDOT, enhance electronic conductivity of MoS 2 , and improve the recognition capability and electrocatalytic capacity of electrode interface. The morphological structure of MoS 2 -MIPs was characterized by SEM, and its electrochemical performance and sensing parameters were investigated by voltammetry. The electrochemical response of luteolin was recorded by MoS 2 -MIPs in the linear concentration range from 3 × 10 -7 to 3 × 10 -5 Μ with limit of detection of 0.04 μΜ under the optimal conditions, which was successfully employed for electrochemically detecting luteolin in Gnaphalium affine with acceptable recoveries in comparison with high-performance liquid chromatography. This will provide a new nanozyme sensing platform comprised of electro-synthesized molecularly imprinted conducting polymers and graphene-like two-dimensional layered nanomaterials.
研究领域:
分析化学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Fiber Materials
·
2024
·Vol. 6
·期 3
·798-809
·
IF 17.2
Zhou Liangliang,Zhang Yujiao,Qiu Hui,Xiao Jijun,Chen Su,Liu Yong
The demand for wearable electronics is still growing, and the rapid development of new electrochemical materials and manufacturing processes allows for innovative approaches to power these devices. Here, three-dimensional (3D) self-supported reduced graphene oxide/poly(3,4-ethylenedioxythiophene) (rGO/PEDOT) hybrid fiber fabrics are systematically designed and constructed via phase inversion-based microfluidic-fiber-spinning assembly (MFSA) method, followed by concentrated sulfuric acid treatment and chemical reduction. The rGO/PEDOT fiber fabrics demonstrate favorable flexibility, interconnected hierarchical network, large specific surface area, high charge storage capacity, and high electrical conductivity. In addition, the all-solid-state supercapacitor made of these rGO/PEDOT fiber fabrics proves large specific capacitance (1028.2 mF cm −2 ), ultrahigh energy density (22.7 μWh cm −2 ), long-term cycling stability, and excellent flexibility (capacitance retention remains at 84%, after 5000 cycles of continuous deformation at 180 o bending angles). Further considering those remarkable electrochemical properties, a wearable self-powered device with a sandwich-shaped supercapacitor (SC) is designed to impressively light up LEDs and power mini game console, suggesting its practical applications in flexible and portable smart electronics. Graphical Abstract
研究领域:
材料科学
·
能源技术
·
纳米技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）