EUROPEAN POLYMER JOURNAL
·
2019
·
IF 3.621
Ruifeng Zhang,Kai Huang,Ming Zhu,Gang Chen,Zihang Tang,Yangyang Li,Hui Yu,Biwei Qiu,Xiaoyan Li
Conductive PANi nanofibers were synthesized by chemical oxidative polymerization, and their morphology and structure were analyzed. SEBS and SEBS/PANi fiber membranes were prepared by electrospinning method, and the influence of THF/toluene binary solvent on fiber morphology was analyzed. Under the action of a high voltage electrostatic field, PANi migrates to the surface of the Taylor cone. With the rapid evaporation of THF , PANi nanofibers accumulate and electrochemically crosslink, forming a unique SEBS/PANi micro-nano fiber structure. The prepared electrospun SEBS/PANi membrane has a large strain recovery capability, and the thermal stability is remarkably improved as compared with the electrospun SEBS membrane. The electrospun SEBS/PANi membrane has good corrosion resistance to stainless steel, and the corrosion rate is greatly reduced, showing corrosion resistance even under large tensile deformation.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2024
·
IF 4.3
Hongsen Chen,Dan Jin,Tingyou Yu,Yuguo Du,Xiaolong Yang
Ti 3 C 2 T x MXene material exhibits exceptional dielectric properties and a distinct layered structure, making it a noteworthy microwave absorbing material. However, its microwave absorption performance is limited due to poor impedance matching and a single loss mechanism. To address these issues, this work develops a solvothermal method to introduce the magnetic component CoNi alloy and generate organic polymer PANI through in-situ polymerization, resulting in the preparation of Ti 3 C 2 T x /PANI/CoNi ternary composites that significantly improve impedance matching and microwave absorption performance. The microwave absorption properties of the binary and ternary composites are compared, and the superior performance of the ternary composites is emphasized. Among the ternary composites, M-P-CN 3:1:8 exhibited an excellent microwave absorption performance, demonstrating a minimum RL value of −55.48 dB and an effective absorption bandwidth of 5.1 GHz at a thickness of 2.0 mm. The synergistic effect of multiple loss mechanisms, multilayer structures, and multiple interfacial polarization methods further contribute to the enhanced microwave absorption performance of ternary composites. This study provides a straightforward method for synthesizing and designing multi-component composite absorbing materials based on MXene.
研究领域:
材料科学
·
电磁学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2017
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IF 3.582
Dan Chen,Fan Zhang,Weide Wang,Yan Yang,Guangren Qian
As an effective photocatalyst , PANI/NiFe 2 O 4 nanocomposite was prepared by in situ polymerization of aniline. The physicochemical properties of the composite were characterized by TEM, XRD , FT-IR spectra, UV–vis spectroscopy, XPS and Photoelectrochemical Measurements. Compared with NiFe 2 O 4 and PANI , PANI/NiFe 2 O 4 nanocomposite has a better photocatalytic activity, which exhibited the remarkable property of hydrogen production under visible light. The photocatalytic mechanism was also discussed. The heterojunction of PANI and NiFe 2 O 4 promoted the separation of photogenerated e − and h + on the surface of PANI/NiFe 2 O 4 . Besides, the structure of PANI/NiFe 2 O 4 in the polymerization was detected by FT-IR. NiFe 2 O 4 was proved that in favor of the formation of nucleate phenazine-like structure in the progress of in situ polymerization. Then the chain structure of conductive PANI was formed, which leading to the promotion of photocatalytic activity .
研究领域:
材料科学
·
化学
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DOI
高影响因子
Journal of Coatings Technology and Research
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2025
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IF 2.8
Tang Baoling,He Ziyu
The commonly used dispersants for graphene dispersions reduce the conductivity of the composite. In this work, a dispersant with an amphiphilic structure, CA-g-PANI, has been designed and synthesized. The dispersant grafts citric acid (CA) onto polyaniline via an amide reaction, which gives CA-g-PANI the hydrophilic groups (carboxyl groups) and the benzene ring structures that can be π–π conjugated with graphene, and it can improve the dispersion properties of graphene; CA-g-PANI contains the polyaniline structure, which is electrically conductive and enhances the electrical conductivity of graphene dispersions. The molecular structure and properties of the dispersant were systematically characterized through FTIR spectra, UV absorption spectra, and other methods. The graphene-based composites were prepared by screen printing method, and the dispersibility and resistivity of CA-g-PANI were compared with gum arabic and alkali lignin (natural dispersants). Graphene concentration reached up to 30 mg/mL in the presence of CA-g-PANI at the weight ratio of 1:0.03 (CA-g-PANI: graphene). CA-g-PANI also exhibited good performance for stabilizing graphene (stable for 6 days), with an electrical conductivity of up to 917.43 S/m. In the study, it was shown that CA-g-PANI as a graphene dispersant improved the conductivity of graphene dispersions while enhancing the dispersing properties of graphene.
研究领域:
材料科学
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化学工程
·
纳米技术
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Jing Liu,Silan Zhou,Rong Hu,Lin Xue,Jun Li
The development of advanced electrode materials with high specific capacitance and long-term stability is crucial for next-generation supercapacitors. In this work, a novel Bi₂O₂Se/polyaniline (PANI) composite electrode was synthesized via an optimised synthesis protocol. The developed composite exhibited remarkable electrochemical performance, achieving a specific capacity of 630.5 mAh g⁻¹ at 1 A g⁻¹ – surpassing the performance of pristine Bi₂O₂Se (266.7 mAh g⁻¹) by a factor of 2.3. Notably, it achieved 60 % capacity retention at an ultra-high current density of 20 A g⁻¹ and maintains 73 % capacity retention after 5000 cycles, demonstrating outstanding cycling stability. These breakthroughs stem from the synergistic interplay between Bi₂O₂Se's interlayer architecture and PANI's pseudocapacitive properties. This work establishes the Bi₂O₂Se/PANI composite as a promising electrode material for next-generation supercapacitors and offers a versatile design framework for flexible electronics and grid-scale renewable energy storage systems.
研究领域:
材料科学
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电化学
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储能
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纳米技术
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产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2022
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IF 4.855
Juncai Song,Yuan Wei,Manzhang Xu,Jiuwei Gao,Lei Luo,Hao Wu,Xingji Li,Yue Li,Xuewen Wang
This work proposes a design, fabrication, and characterization of flexible temperature sensors using temperature-sensitive materials, which are applied using a drop coating method. Temperature-sensitive materials were fabricated by mixing poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) with polyaniline (PEDOT:PSS/PANI). The temperature coefficient of resistance reached −0.803%/°C. Moreover, the detection resolution reached 0.1 °C and had a fast response time of 200 ms. In addition, the sensor can sense spatial temperatures. The sensor has the advantages of low cost, a simple preparation process, and the potential to be used in medical rehabilitation and early disease prevention.
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
E-POLYMERS
·
2021
·Vol. 22
·期 1
·69-74
·
IF 2.025
Hongmei Zhao,Zhang Dai,Tian He,Shufang Zhu,Xu Yan,Jianjun Yang
In recent years, with the rise of an intelligent concept, oral and maxillofacial surgery smart dressing had also attracted the interest of researchers, especially for the pH sensor with flexible medium. In this study, polyvinylidene fluoride (PVDF) nanofibrous yarn was fabricated by a conjugate electrospinning process and modified with in situ polymerization of polyaniline (PANI) forming a PANI/PVDF yarn. By a weaving process, these yarns could be weaved into a fabric. It was found that both the PANI/PVDF yarn and the fabric showed a sensitivity to pH, about −48.53 mV per pH for yarn and −38.4 mVper pH for fabric, respectively, in the pH range of 4.0–8.0. These results indicated that the prepared PANI-modified PVDF yarn and fabric might have a potential application in intelligent oral and maxillofacial surgery dressings for monitoring wound healing.
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
Journal of Industrial Textiles
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2022
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IF 2.926
Suo Liu,Jinyan Hu,Dingsheng Wu,Haiao Zeng,Tang Zhou,Maohuan Yang,Quan Feng
In order to solve the increasingly serious problem of printing and dyeing wastewater pollution, a kind of novel, efficient, and reusable spunlaced viscose/polyaniline-ZnO/GO fibrous membrane was fabricated in this work. Specifically, spunlaced viscose/polyaniline conductive fibrous membrane was firstly prepared by in-situ growth method, followed with the growth of zinc oxide (ZnO) and graphene oxide (GO) via the hydrothermal route to obtain spunlaced viscose/PANI-ZnO/GO fibrous membrane (SV@PANI-ZnO/GO membrane). The results show that the decolorization rate of SV@PANI-ZnO/GO membrane for methylene blue (5.0 mg/L) was 97.4% within 120 min, and the decolorization rate remained above 76.7% after five cycles. Moreover, the reaction process conformed to a quasi-first order kinetic model with the apparent rate constant of 0.0209 min–1. Meanwhile, the free radical capture experiment revealed that the main reactive species in the decolorization process was .OH. This work may provide a new method for designing photocatalytic materials for environmental applications.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
RSC Advances
·
2019
·Vol. 10
·期 1
·21-28
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IF 3.049
Yongqian Li,Yunlong Mao,Chi Xiao,Xiaoli Xu,Xueyong Li
pH is a critical parameter used to specify the acidity or alkalinity of an aqueous solution in chemistry, food processing, and medical care. In this study, a conductimetric-type micro pH sensor has been achieved using PANI membrane fabricated on a flexible substrate film aiming to monitor wound healing. The sensor is based on the incorporation of a polyaniline (PANI) membrane, interdigital electrode, and polyimide (PI) substrate. PANI was doped with dodecyl benzene sulfonic acid (DBSA) to obtain good conductivity. The electrodes were patterned on the PI film by etching. The contact area between the PANI and interdigital electrodes improves the responsiveness of the pH sensor. A sensitivity of 58.57 mV per pH over the entire pH range from 5.45 to 8.62 was obtained experimentally, along with a superior repeatability of 8% FS (full scale) and a temperature drift of 6.8% FS. This micro flexible pH sensor aims to monitor the pH value of wound healing, which also facilitates the realization of online monitoring of the pH for telemedicine, food safety, and home health care.
研究领域:
化学传感器
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医学工程
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材料科学
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产品关联
DOI
PubMed
高影响因子
Biosensors-Basel
·
2023
·Vol. 13
·期 2
·272
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IF 5.4
Dong Wang,Xiyu Mao,Yitao Liang,Yu Cai,Tingting Tu,Shanshan Zhang,Tianyu Li,Lu Fang,Yue Zhou,Zhaoyang Wang,Yu Jiang,Xuesong Ye,Bo Liang
Urine analysis is widely used in clinical practice to indicate human heathy status and is important for diagnosing chronic kidney disease (CKD). Ammonium ions (NH4+), urea, and creatinine metabolites are main clinical indicators in urine analysis of CKD patients. In this paper, NH4+selective electrodes were prepared using electropolymerized polyaniline-polystyrene sulfonate (PANI: PSS), and urea- and creatinine-sensing electrodes were prepared by modifying urease and creatinine deiminase, respectively. First, PANI: PSS was modified on the surface of an AuNPs-modified screen-printed electrode, as a NH4+-sensitive film. The experimental results showed that the detection range of the NH4+selective electrode was 0.5~40 mM, and the sensitivity reached 192.6 mA M−1cm−2with good selectivity, consistency, and stability. Based on the NH4+-sensitive film, urease and creatinine deaminase were modified by enzyme immobilization technology to achieve urea and creatinine detection, respectively. Finally, we further integrated NH4+, urea, and creatinine electrodes into a paper-based device and tested real human urine samples. In summary, this multi-parameter urine testing device offers the potential for point-of-care testing of urine and benefits the efficient chronic kidney disease management.Keywords:electrochemical biosensor;PANI: PSS;ammonium ion;urea;creatinine;urinalysis
研究领域:
分析化学
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生物医学工程
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临床诊断
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产品关联
DOI
PubMed
高影响因子
Coatings
·
2019
·Vol. 9
·期 5
·325
·
IF 2.33
Qiujin Wang,Yifan Zhou,Jixue Zhou,Rongrong Wu,Jianbo Wu,Hao Zheng,Ying Ye,Yuanfeng Huang
In this paper, we successfully fabricated a novel bromide ion selective electrode (Br-ISE), which was coated by bromine ion doped polyaniline as sensitive film. Using Ag wire as the substrate, a uniform and dense nano-silver layer was electroplated to enhance the specific surface area of the electrode. Subsequently, a polyaniline (PANI) film was coated onto the electrode by cyclic voltammetry in a 0.3 M aniline and 1 M HCl solution and was in-situ doped by 0.1 M KBr solution. The morphology and performance of the electrode were characterized by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and other electrochemical analysis methods, respectively. The prepared Br-ISE exhibited a wide linear dynamic range between 1.0 × 10−1and 1.0 × 10−7M with a near-Nernst slope of 57.33 mV/decade. In addition, the electrode possessed extremely fast response time (<1 s) and low impedance (300 Ω), high sensitivity, and good selectivity. The electrode potential drifted within 2 mV in 8 h. The lifespan was larger than three months.Keywords:nano-silver;electrode;bromide ion doped PANI;film;in-situ measurement
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
Russian Journal of Physical Chemistry A
·
2025
·Vol. 99
·期 3
·634-645
·
IF 0.8
Lili Li,Jiang Ke,Xi Wen,Li Jia Xin,Shu Jing
The synthesized SrTiO 3 /PANI composite materials through a simple in situ oxidation process. A series of analytical techniques, including XRD, FT-IR, SEM, TEM, XPS and so on, were employed to investigate the morphological and structural characteristics of the composite materials and their elemental composition. The results of the UV irradiation of RhB demonstrated that pure SrTiO 3 exhibited a degradation rate of 73.35% within 60 min. The SrTiO 3 /PANI (20%) composite exhibited a 98.18% degradation rate in 60 min, indicating the optimal conditions for photocatalytic degradation of RhB. The free radical scavenging experiment demonstrated that superoxide anion ( \( \cdot {\kern 1pt} {\text{O}}_{2}^{ - }\) ) is the dominant active species, the photocatalytic mechanism of Type-Z heterojunction was described in detail according to the band gap and free radical capture experiments of SrTiO 3 and PANI.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）