SOLAR ENERGY
·
2022
·
IF 7.188
Kai Sheng,Mahmoud A. Khalifa,Zitao Wang,Jianming Zheng,Chunye Xu
Developing a low-cost and efficient Photovoltachromic Device (PVCD) can address the requirements of energy-harvesting smart windows . In this work, low-cost poly(3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProDOT-Me 2 ) is presented for replacing expensive Pt and achieving a WO 3 -based PVCD with rapid bleaching speed. The device consists of the proposed WO 3 /PProDOT-Me 2 electrode, an electrolyte containing I − /I 3 − redox couple , and dye-sensitized TiO 2 photoanode. The PVCD changes state between colored and bleached by simply altering the open and short circuit of the device. The PVCD achieves high optical contrast of 45.1% at 680 nm with a fast bleaching time of 15.5 s, coloring time of 3.6 s, and cycling stability over 200 cycles. These unique characteristics result from the PProDOT-Me 2 could help accelerate the electrochromic process of WO 3 and fast transferring charges to the electrolyte that enhances photovoltaic performance . The accelerating mechanism is analyzed and the related experimental evaluations are executed. This study reveals promising prospects of the proposed WO 3 -PProDOT-Me 2 electrode for low-cost PVCD.
研究领域:
材料科学
·
能源技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 9
·期 1
·2100945
·
IF 6.147
Mahmoud A. Khalifa,Kai Sheng,Zitao Wang,Jianming Zheng,Chunye Xu
Developing a low-cost and transparent counter electrode (CE) for a self-powered electrochromic device (SP-ECD) can address the requirements of building-integrated photovoltaics (BIPVs). Herein, a new partly covered poly(3,4-(2,2-dimethylpropylenedioxy) thiophene) (PProDOT-Me 2 ) on MoS 2 nanosheets CE is developed for replacing an expensive Pt CE and achieving high-performance SP-ECD. The device consists of the proposed CE, an electrolyte containing Br − /Br 3 − redox pair, and a working electrode made with a dye-sensitized TiO 2 photoanode integrated with PProDOT-Me 2 . ECD changes its color between deep blue and colorless by varying the illuminated light on and off. Measurements reveal that the ECD achieves a transmittance modulation of 46% at 580 nm with cycling stability over 500 cycles (4% contrast attenuation) that are about five times stable than that based on Pt or MoS 2 CE. In addition, the switching speed between colored and bleached states is fast under a light on and off, with a coloration time of 2.1 s and a bleaching time of 1.5 s. These characteristics result from the unique design of CE and can be beneficial in accelerating the electrochromic process and enhancing the self-powered performance for good cycling stability. This study reveals a new approach to prepare good CE for efficient SP-ECD in BIPVs.
研究领域:
材料科学
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光电化学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2020
·
IF 8.821
Ruanye Zhang,Ruxangul Jamal,Yi Ge,Wenli Zhang,Zongna Yu,Yinqiang Yan,Yingcheng Liu,Tursun Abdiryim
In this study, the functional groups (-OH,-SH) grafted poly (3,4-proplenedioxy thiophene)@nitrogen-doped carbon hollow spheres (N-HCS) composites were prepared by a chemical oxidative polymerization method for the electrochemical detection of tryptophan. The relationship between the structure and electrochemical performance were systematically studied. The improvement of synergetic effect resulted from strong non covalent bonding effect between the functional groups of N-HCS and polymers, as well as the interaction between functional groups (-OH,-SH) of polymers and small biomolecules enhanced the sensitivity and catalytic properties of the composites. The constructed sensors from composites of functionalized polymers@N-HCS modified glassy carbon electrodes displayed higher electrochemical sensing behavior for detection of tryptophan than unfunctionalized polymer@N-HCS. Furthermore, the composites of functional groups (-OH, –SH) grafted poly (3,4-proplenedioxy thiophene)@N-HCS exhibited a wide range (0.2–90 μM and 0.1–100 μM), low detection limit (4.16 nM and 9.2 nM) and good sensitivity (382.16 μAmM −1 cm −2 and 433.12 μAmM −1 cm −2 ), suggesting that the functional groups (-OH,-SH) grafted poly (3,4-proplenedioxythiophene)@N-HCS could be a promising and convenient material for the electrochemical sensing of tryptophan.
研究领域:
生物化学
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Haile Liu,Tursun Abdiryim,Ruxangul Jamal,Xiong Liu,Mariyam Niyaz,Lielie Liu,Hujun Zhang,Dongna Zou,Junxia Li,Yanyan Song,Jin Wei
The ideal material for detecting ultraviolet(UV) is TiO 2 nanorods (TiO 2 NRs). However, the photosensitive response speed and response speed of TiO 2 NRs are affected by its surface defects . We need to choose an appropriate method to solve this problem. In this study, TiO 2 NRs and D-A-D type conducting polymer containing pyridazine as the acceptor unit and 3,4-propylenedioxythiophene as the donor unit 3,6-bis (2- (3,4-propylidene dioxythiophenyl)) pyridazine are electrochemically combined to fabricate UV photodetectors . The structure of the material is analyzed by SEM , mapping, XRD , FT-IR, UV–vis and XPS , indicating the strongly enhanced synergistic effect between PProDOT-Pz and TiO 2 NRs and the homogeneous distribution of polymer on the TiO 2 NRs surface. The results show that under the low power (0.35 mW cm −2 ) UV illumination, the hybrid system has high responsivity (342.19 mA W −1 ) large detectivity (1.36 × 10 11 Jones) fast time pulse response (T rise = 6.2 s, T decay = 7.7 s) and EQE (110.35%) at the bias voltage of 3 V. More importantly, the photodetector works stably with good repeatability, which shows that the device configuration based on TiO 2 NRs and PProDOT-Pz heterojunction is proved to be an excellent candidate device with high sensitivity and fast response for UV signal.
研究领域:
材料科学
·
光电材料
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaojing Lv,Haofei Xu,Yuanyuan Yang,Mi Ouyang,Minao Xia,Chunyan Liu,Dominic S. Wright,Cheng Zhang
A flexible laterally-configured electrochromic supercapacitor was designed and fabricated through a fully-solution process. The laterally-configured transparent conductive electrode PEDOT:PSS-AgNWs/PET was prepared by spraying technology and then the magenta electrochromic polymer (PProDOT) and gel electrolyte were cast sequentially onto the laterally-configured electrode. The as-prepared device exhibits alternative color changes between magenta and transparent within the potential range −0.9 V and 0.9 V, and the electrochromic behavior is retained even if bent, proving its excellent flexible display properties. As expected, a “ZJUT” patterned flexible display device works clearly when applying driving potentials to the two circuits simultaneously. In addition, the asymmetric device (PProDOT||PEDOT:PSS) integrates excellent electrochromic and electrochemical energy storage properties in terms of high optical contrast of 59.5 %, large coloration efficiency of 423.5 cm 2 ·C −1 , fast switching time (7.4 s and 3.9 s), reasonable areal capacitance of 2.15 mF/cm 2 at a current density of 0.05 mA/cm 2 and robust cyclic stability which can retain 85.65 % and 77.42 % of its initial optical contrast and capacitance even after 1000 cycles of mechanical deformation. Hence, this work demonstrates the flexible laterally-configured electrochromic supercapacitor has great potential in the portable and wearable display fields, such as smart watches and electronic paper.
研究领域:
材料科学
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能源存储与转换
·
显示技术
✓ 已验证
产品关联
DOI
高影响因子
SYNTHETIC METALS
·
2018
·
IF 2.526
Junlong Niu,Liangmei Rao,Ping Liu,Wenwen Zhang,Wenna Zhang,Yinxiu Zuo,Keke Chai,Shuai Chen,Jingkun Xu,Xuemin Duan
Two novel chiral 3,4-dihydro-2 H -thieno[3,4- b ][1,4]dioxepine (ProDOT)-based electrochemical sensor , employing a pair of glassy carbon electrodes modified with chiral poly(2-Phenyl-propionic acid 3,4-dihydro-2 H -thieno[3,4- b ][1,4]dioxepin-3-ylmethyl ester) (PProDTM-PP), were utilized for the enantioselective detection of chiral 3,4-dihydroxyphenylalanine (DOPA). The enantioselective recognition between chiral PProDTM-PP modified glassy carbon electrodes and chiral DOPA was studied by using different electrochemical technologies. The redox activity and electrochemical stability of chiral PProDTM-PP was good. ( R )-PProDTM-PP and ( S )-PProDTM-PP showed higher peak current responses toward D -DOPA and L -DOPA, respectively. Furthermore, the recognition efficiencies of chiral PProDTM-PP are between 1.48 and 1.89, which is higher than chiral PEDOT-based electrochemical sensors (around 1.10). The chiral PProDTM-PP provides an alternative to chiral recognition.
研究领域:
生物化学
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Shuyue Xie,Yanyan Song,Ruxangul Jamal,Tursun Abdiryim
The development of platinum (Pt)-based electrocatalysts with optimized interfacial structures is crucial to improve the efficiency of direct methanol fuel cells (DMFCs). Here, a Pt-based methanol oxidation reaction (MOR) catalyst (Pt/PProDOT/Fe-NCNT) is constructed by anchoring Pt to poly(3,4-propylenedioxythiophene) (PProDOT) modified and Fe/N co-doped carbon nanotubes (Fe-NCNT) via interfacial engineering. The mass activity (MA) of the Pt/PProDOT/Fe-NCNT catalyst (1258.9 mA mg −1 ) was higher than that of the Pt/Fe-NCNT catalyst (661.5 mA mg −1 ), suggesting that the introduction of PProDOT over Fe-NCNT may enhance the catalytic activity and accelerate the reaction kinetics. The MA value of the Pt/PProDOT/Fe-NCNT catalyst was also superior to that of the commercial Pt/C (282.8 mA mg −1 ) catalyst and many other reported Pt-based catalysts. Experiments and material characterization show that the synthesized Pt/PProDOT/Fe-NCNT catalyst has a unique bamboo-like hollow structure and is cross-linked to form a three-dimensional network. Such a structure can lead to more chemically active sites by the electronegative N atoms in Fe-NCNT, while stabilizing the Pt nanoparticles by the S atoms in PProDOT. Furthermore, the stacking of π-π rings between PProDOT and Fe-NCNT facilitates electron conduction, thereby enhancing catalytic activity and MOR efficiency. Results from this study offer a possible new design of Pt-based catalyst with polymer-modified carbon carriers.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yanyan Song,Ruxangul Jamal,Tursun Abdiryim,Abdukeyum Abdurexit,Shuyue Xie,Lielie Liu,Mariyam Niyaz,Nawrzhan Serkjan,Yu Zhang
The electricity generated by direct methanol fuel cells (DMFCs) comes from methanol oxidation reaction (MOR), which is affected by electrocatalytic activity of anode materials . Herein, Pt nanoparticles supported by the composite of thiol group grafted poly(3,4-propylenedioxythiophene) (PProDOT-2CH 2 SH) and Ni–N co-doped bamboo-like carbon nanotubes (Ni-NCNT) are prepared and proposed as an anode material for DMFCs. The results from morphological analysis show that the Pt nanoparticles uniformly disperse on the surface of support (PProDOT-2CH 2 SH/Ni-NCNT) with bamboo-like structure, and there is an electronic effect between the Pt and Ni confirmed by X-ray photoelectron spectroscopy analysis. Electrochemical tests reveal that the PProDOT-2CH 2 SH/Ni-NCNT/Pt catalyst demonstrates good electrocatalytic activity for the MOR in acidic electrolyte, and the catalyst has higher resistance to CO poisoning than commercial Pt/C. The mass activity (MA) of catalyst is up to 1670.54 mA mg Pt −1 with an electrochemical active surface area (ECSA) of 98.0 m 2 g −1 , and the catalyst maintains good performance after 800 cycles. This work provides a high-performance MOR catalyst in practical application for DMFCs.
研究领域:
材料科学
·
电化学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2018
·Vol. 23
·期 1
·19-25
·
IF 2.509
Chen Xiaoming,Yang Mingdi,Xu Wenzong,Qu Qishu,Zhao Qingchun,Zou Wensheng
A novel conjugated polymer PProDOT(MeEO) 2 based on dioxythiophene with symmetric double ethoxymethyl pendant groups was successfully synthesized through electrochemical polymerization. The polymer film exhibits reversible electrochromism switching between broadly absorbing bluish black neutral state (− 0.1 V) and transmissive sky blue oxidized state (0.7 V). The symmetric double short-chain ethoxymethyl substitution pattern was utilized to realize the broadly absorbing bluish black neutral state of the polymer film. The electrochemical, spectroelectrochemical, and electrochromic switching properties of the polymer film were studied in detail.
研究领域:
材料科学
·
电化学
·
聚合物科学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2019
·Vol. 11
·期 5
·815
·
IF 3.164
Mihray Abdulla,Ahmat Ali,Ruxangul Jamal,Tursunnisahan Bakri,Wei Wu,Tursun Abdiryim
Heavy metal ions in water, cosmetics, and arable land have become a world-wide issue as they cause a variety of diseases and even death to humans and animals when a certain level is exceeded. Therefore, it is necessary to development a new kind of sensor material for the determination of heavy metal ions. In this paper, we present an electrochemical sensor based on composite material (thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2)/ porous silicon spheres (Si) composite, denoted as PProDOT(MeSH)2@Si) from the incorporation of thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2) with porous silicon spheres (Si) for the electrochemical detection of heavy metal ions (Cd(II), Pb(II), and Hg(II)). The PProDOT(MeSH)2@Si composite was synthesized via a chemical oxidative polymerization method. The structure and morphology of PProDOT(MeSH)2@Si composite were characterized by Fourier transform infrared (FT-IR), Ultraviolet–visible spectroscopy (UV–Vis), X-ray diffraction (XRD), scanning electron microscope (SEM), Transmission electron microscope (TEM), and Brunauer−Emmett−Teller (BET). Furthermore, the electrochemical performance of PProDOT(MeSH)2@Si was evaluated by detecting of Cd(II), Pb(II), and Hg(II) ions using the differential pulse voltammetry (DPV) method. The relationship between structural properties and the electrochemical performance was systematically studied. The results showed that the entry of two thiol-based chains to the monomer unit resulted in an increase in electrochemical sensitivity in PProDOT(MeSH)2,which was related to the interaction between thiol group(-SH) and heavy metal ions. And, the combination of PProDOT(MeSH)2with Si could improve the electrocatalytic efficiency of the electrode material. The PProDOT(MeSH)2@Si/GCE exhibited high selectivity and sensitivity in the rage of 0.04 to 2.8, 0.024 to 2.8, and 0.16 to 3.2 μM with the detection limit of 0.00575, 0.0027, and 0.0017 µM toward Cd(II), Pb(II), and Hg(II), respectively. The interference studies demonstrated that the PProDOT(MeSH)2@Si/GCE possessed a low mutual interference and high selectivity for simultaneous detection of Cd(II), Pb(II), and Hg(II) ions.Keywords:thiol(–SH), poly(3,4-proplenedioxythiophene), porous silicon spheres;electrochemical sensor;heavy metal ions;simultaneous detection
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）