ACS Applied Nano Materials
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2018
·
IF 0
Lu Shen,Yong Li,Wenjie Zhao,Lijing Miao,Weiping Xie,Huanming Lu,Kui Wang
In order to hold the excellent corrosion resistance of zinc-rich epoxy coatings with reduced zinc content, five types of graphene modified zinc-rich epoxy coatings (G-ZRCs) were prepared. The effect of zinc content on the corrosion protection behaviors of G-ZRCs was investigated using electrochemical impedance spectroscopy (EIS). Open circuit potential (OCP) was also utilized to deepen the understanding of the anticorrosion mechanism of the as-prepared composite coatings. The results confirmed that addition of 0.3 wt % graphene could make the coating with 40 wt % (G-40ZRC) and 55 wt % zinc (G-55ZRC) provide cathodic protection for a short period of time. The EIS and OCP results showed a dominant physical barrier protection mechanism for the coatings without zinc (G-ZRC), while there was a mixed mechanism for G-40ZRC and G-55ZRC and a dominant cathodic protection mechanism for the coatings with 70 and 85 wt % zinc (G-70ZRC and G-85ZRC). Furthermore, the graphene modified zinc-rich coatings and corresponding corrosion products immersed in a 3.5% NaCl solution for 100 days were also characterized, which could further reveal anticorrosion mechanisms of the graphene modified zinc-rich coatings and the passivation effect of polyaniline (PANI).
研究领域:
材料科学
·
腐蚀与防护
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DOI
Progress in Natural Science-Materials International
·
2018
·Vol. 28
·期 4
·529-533
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IF 2.572
Zhenmin Ding,Yufei Ma,Dandan Peng,Lu Zhang,Yumeng Zhao,Yuan Li,Shumin Han
In this work, LiBH 4 –20 wt% PP composite was prepared by ball-milling with as-synthesized hierarchical pyrolysis polyaniline (PP) and LiBH 4 , and the hydrogen sorption performance as well as catalytic mechanism of the composite was studied. It is found that the onset desorption temperature of the composite decreases to 75 °C, almost 235 °C lower than that of the milled LiBH 4 . Moreover, the composite could release 4.1 wt% H 2 and rehydrogenate a total of 4.4 wt% H 2 when the temperature raiseds up to 400 °C, showing an outstanding reversibility, which even 3.9 wt% H 2 can be kept after five cycles. Through scanning electron microscopy (SEM) observation and X-ray diffraction (XRD) analysis, we found that the PP surface forms some nanoholes after hydrogenation-dehydrogenation cycles, which leads to the confinement of some LiBH 4 in the PP nanoporous structure, therefore, the hydrogen sorption kinetics and reversibility are significantly enhanced. In addition, we also found the oxygenic groups of the PP can react with LiBH 4 forming LiBO 2 and Li 3 BO 3 , where the containing Li–B–O bonds loaded in the porous structure of the PP catalyze the hydrogenation reaction of LiBH 4 .
研究领域:
材料科学
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能源化学
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纳米材料
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固态储氢
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催化化学
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DOI
高影响因子
SYNTHETIC METALS
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2016
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IF 2.299
Qiang Zhao,Junhua Chen,Fubin Luo,Lu Shen,Ying Wang,Kun Wu,Mangeng Lu
Nanostructure of ordered polyaniline-graphene (PANI-rGO PMAS ) hybrid nanomaterials is assembled based on poly(2-methoxyaniline-5-sulfonic acid) (PMAS) functionalized reduced graphene oxide (rGO PMAS ) nanosheets. The presence of PMAS not only improves dispersibility of reduced graphene oxide nanosheets, but also plays a key role for heterogeneous nucleation of polyaniline (PANI) nanorods . The formation mechanism of ordered PANI-rGO PMAS hybrid nanomaterials was studied in details by using field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and ultraviolet-visible spectrophotometry (UV–vis). The conductivity of PANI-rGO PMAS hybrid with 17 wt% rGO PMAS is as high as 4480 S/m, compared with 2.93 S/m for pure PANI. The cyclic voltammetry tests indicate that, PANI-rGO PMAS containing 2 wt% rGO PMAS possesses fast response to redox reactions and excellent reversible stability. It has a high specific capacitance of 385 F g −1 at the scan rate of 10 mV s −1 with potential ranges from −0.2 to 0.8 V. This ordered polyaniline-graphene hybrid has potential applications for flexible supercapacitors, sensors, batteries, electromagnetic materials and thermoelectric materials, etc.
研究领域:
材料科学
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纳米科技
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高分子化学
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电化学
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能源材料
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DOI
高影响因子
RSC Advances
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2015
·Vol. 5
·期 93
·76116-76121
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IF 3.84
Hailing Xu,Huang Jiang,Xingwei Li,Gengchao Wang
Polyaniline doped with lignosulfonate (PANI/LGS) was prepared by using a facile oxidative polymerization of aniline with (NH4)2S2O8 as an oxidant, and the structure and morphology of PANI/LGS were investigated. As an active material for supercapacitors, the capacity retention rate of PANI/LGS was 75.1% with a growth of current density from 0.2 to 10 A g−1, indicating a high rate performance, and that of PANI was only 38.3%. For PANI/LGS, a specific capacitance of 377.2 F g−1 remained at 10 A g−1, and that of PANI was 183.7 F g−1. Moreover, the cycling stability was also measured in a two-electrode symmetrical capacitor at a current density of 1.0 A g−1. The capacity retention rate of PANI/LGS was 74.3% after 10 000 cycles, and that of PANI was 52.8%.
研究领域:
材料科学
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电化学
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高分子化学
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能源存储
·
纳米材料
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DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2020
·
IF 3.085
Jiaoming Wang,Xiang Yu,Xionghui Fu,Yi Zhu,Yuanming Zhang
To solve severe photocorrosion of Ag 3 PO 4 , polyaniline for transporting holes and reduced graphene oxide (rGO) for transferring electrons were co-incorporated with Ag 3 PO 4 by an in-situ precipitation procedure and a following hydrothermal method , reaching the superior carrier separation efficiency via synergetic effect of PANI and rGO. Consequently, 5% rGO/Ag 3 PO 4 /PANI exhibited the excellent photocatalytic performance of 86.2% removal rate towards ciprofloxacin (CIP) within 15 min, which was much better than Ag 3 PO 4 , Ag 3 PO 4 /PANI and many reported photocatalysts . After four consecutive cycles, the composites performed better stability with 81.0% removal rate. Generally, photocatalytic activity depended on efficiencies of light absorption ( η abs ), charge separation ( η sep ) and charge injection ( η inj ). η sep of rGO/Ag 3 PO 4 /PANI was 11.5 and 8.70 folds higher than that of Ag 3 PO 4 and Ag 3 PO 4 /PANI, while η abs and η inj of rGO/Ag 3 PO 4 /PANI were not improved compared with Ag 3 PO 4 and Ag 3 PO 4 /PANI, strongly manifesting synergetic effect of PANI and rGO on Ag 3 PO 4 accelerated the charge separation and finally enhanced the photocatalytic activity . Besides, rGO greatly improved the adsorption efficiency for CIP and the maximum adsorption capacity was enhanced to be 19.4 mg/g which was 6.88 folds than that of Ag 3 PO 4 , being advantageous to enhancing the photocatalytic activity. The work offered an excellent reference for designing and constructing photocatalysts with superior charge separation showing excellent photocatalytic performance, which were potential candidates for degrading antibiotics in environmental treatment.
研究领域:
材料科学
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环境化学
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光催化
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纳米材料
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环境污染治理
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半导体催化
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抗生素降解
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DOI
高影响因子
ELECTROCHIMICA ACTA
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2015
·
IF 4.504
Peng Zhang,Zhimeng Liu,Yuping Liu,Hongbo Fan,Yuanqi Jiao,Baiman Chen
In this work, we demonstrate a facile approach to synthesize high-performance and stable TiO 2 @PANI core-shell nanowires (NWs) as flexible electrodes for solid-state supercapacitors (SCs). The TiO 2 @PANI core-shell NWs are grown directly on highly conductive carbon cloth, which not only give efficient charge transport and accessible diffusion of the electrolyte, but also provide large surface area and active sites for redox reaction as well as good strain accommodation. Such these features enable them to deliver a large areal capacitance of 520.3 mF/cm 2 at 0.5 mA/cm 2 with outstanding rate capability. Furthermore, a flexible and stable solid-state SC device based on these TiO 2 @PANI core-shell NWs is also demonstrated. The as-fabricated solid-state SC device yields a remarkable volumetric capacitance of 898.4 mF/cm 3 , excellent flexibility and significant cycling stability with more than 97.2% retention of its capacitance after 10000 cycles. We believe that these findings may open up new opportunities to prepare high-performance PANI-based electrodes for flexible solid-state SCs.
研究领域:
材料科学
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纳米科技
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电化学
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能源存储
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功能材料
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柔性电子学
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DOI
高影响因子
SOLID STATE COMMUNICATIONS
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2021
·
IF 1.804
Shaohui Su,Jiahao Yu,Xianguo Liu,Jieyi Yu
Magnetic-dielectric composites attract numerous attentions for good microwave absorption performances based on magnetic-dielectric loss mechanism and tunable electromagnetic parameters. Fe/carbon fibers are prepared through carbonization of Fe doped polyaniline nanotubes , in which Fe nanoparticles are embedded in carbon fibers. The introduction of Fe nanoparticles results in good electromagnetic impedance and proper quarter-wavelength cancellation induced, which ensure that microwave penetrate composites to the great extend and is consumed as much as possible, leading to enhanced microwave absorption performance. The minimal reflection loss of Fe/carbon fibers composites starts being less than −10 dB from 1.7 mm and is up to −44.09 dB at 6.62 GHz and 4.1 mm and the effective bandwidth reaches 6.0 GHz with 2.4 mm.
研究领域:
材料科学
·
电磁学
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纳米复合材料
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功能材料
·
微波工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Adeel Imtiaz,Zhaoqun Du,Yinuo Pan,Aamer khan,Inaam Ullah
Helical braided yarn was fabricated via PANI-assisted copper nanoparticle deposition and industrial braiding techniques. • The braided yarn exhibits high stretchability (up to 220% strain) and a broad sensing range. • The braided yarn demonstrates strain sensing, Joule heating, and antibacterial activity (87.2% against E. coli). • The braided conductive yarn enables motion detection, Morse code transmission, and real-time machine interaction. Fiber-based electronics with excellent stretchability and functionality have gained attention in wearable devices, but achieving both exceptional conductivity and stretchability at an industrial scale remains extremely difficult. Herein, we develop a continuous manufacturing process using an industrial braiding machine for stretchable braided composite yarns (SBCYs) with a hierarchically wrapped core structure. While a copper coated polyamide filament wrap layer offers multifunctional properties, the spandex core gives the SBCY exceptional stretchability and resilience. Waterborne polyurethane's outermost layer enables environmental stability. PPI and braiding angle are the key processing parameters investigated for tunable stretchability, while the core draw ratio optimized and kept constant. The SBCY demonstrates exceptional stretchability up to 220% strain, GF max = 32.1, excellent cyclic durability of 18,000 cycles, and high electrical conductivity of 7.88 S/cm at zero strain under optimal conditions, which is attributed to a discontinuous copper nanoparticle network on a polyaniline conductive polymer layer. Furthermore, the WPU-coated SBCY exhibits 87.2% antibacterial efficacy against E. coli and programmable electrothermal behavior, stable 36 °C heating at 3.3 V. In order to enable advanced wearable electronics with seamless integration into textiles, particularly for continuous rehabilitation monitoring of joint movements in post-stroke or post-injury patients, this work proposes a scalable manufacturing method for stretch-tunable conductive yarns. This study presents a multifunctional braided yarn integrating copper-plated polyamide with spandex for enhanced stretchability. The yarn enables real-time motion detection, efficient Joule heating, and antibacterial activity via controlled copper ion release, which effectively eliminates bacteria. This design offers a promising e-textile platform for smart health monitoring and infection prevention. Download: Download high-res image (131KB) Download: Download full-size image
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产品关联
DOI
高影响因子
Energy & Environmental Science
·
2026
·
IF 30.5
Wenbin Wang,Hongyu Zhang,Miao Guo,Chaoqun Li,Xian Zhou,Guanglin Xia,Xuebin Yu
Solvation sheath rearrangement is recognized as a key strategy for modifying electrolytes to enhance the kinetics of magnesium batteries. However, its fundamental mechanism diverges significantly from that in Li-ion batteries and remains inadequately understood. Herein, we elucidate the principle that solvation tuning essentially determines the distribution of reductive electrons, whose accumulation on ether molecules directly leads to challenging reorganization and severe solvent decomposition. To address this, a series of organic monoamine salts are designed as additives to capture and stabilize the reductive electrons in the solvation sheath, and screening guidelines are proposed to promote the kinetics and reversibility of Mg plating/stripping. Accordingly, we demonstrate an Mg pouch cell with ultrahigh power density (50C, 13 mA cm−2, 16.02 kW kg−1 based on the cathode), surpassing the power densities reported in all previous studies. This work offers new insights into solvation tuning strategies that are crucial in designing high-power-density Mg batteries.
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产品关联
DOI
高影响因子
iScience
·
2026
·
IF 4.1
Luyue Zhang,Mengya Wang,Liting Xiao,Xinchang Li,Ziqi Sha,Feng Yang
Oral health hinges on tightly regulated acid-base chemistry that fluctuates within minutes after eating or hygiene, yet existing assessments are episodic and miss these transient events. We demonstrate a liquid-permeable potentiometric pH sensor designed for non-invasive intraoral monitoring that integrates a saliva-through fibrous layer for fast convective–capillary transport, a percolated silver-nanowire network for low-impedance readout and antibacterial activity, and a pH-responsive sensing layer paired with an on-board Ag/AgCl reference. The integration sensor delivers near-Nernstian sensitivity, rapid and reversible responses, and low drift during extended operation under simulated oral conditions. Microbiological assays show inhibition of Streptococcus mutans and Candida albicans, supporting resistance to biofilm fouling. Moreover, in human-use demonstrations, the sensor captures real-time salivary pH excursions during sugar intake, mixed meals, and tooth brushing. This platform establishes a practical route toward patient-centric oral electronics that shift diagnosis and prevention from the clinic into everyday life.
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Jinghao Li,Yuzhe Zhang,Zhuo Chen,Wenwei Zhang,Yuhang Dai,Yuyang Cai,Gyumin Kim,Yaoguang Rong,Qinyou An
Zinc metal batteries face issues of low coulombic efficiency and persistent side reactions due to the active H 2 O in aqueous electrolytes. Organic electrolytes that can reduce side reactions and coulombic efficiency loss still suffer from sluggish Zn 2+ transfer and difficult desolvation. We propose a thermal-induced loose solute configuration to activate rapid Zn 2+ transfer in “Zn(OTf) 2 + ACN” pure organic electrolyte. Zn metal batteries with the pure organic electrolyte realize stable and long-term cycling for over 5500 h at 5 mA cm −2 and 10 mAh cm −2 . Moreover, a practical parameter of cumulative capacity reaches 7.5 Ah cm −2 at DOD > 90%. As an application demonstration, the pouch cells assembled with our organic electrolyte can be photo-charged by illumination and drive LEDs or other portable electronics in daily life. The organic electrolyte activated by thermal-induced loose solute configuration demonstrates long-cycle lifespan and application potential, offering a new choice for electrolytes in Zn metal batteries.
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DOI
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Lin Dong,Yunlan Xu,Dengjie Zhong,Haixing Chang,Jun Li,Yi Liu,Zhuofan Han
In order to develop efficient photoanode to improve the performance of visible light responsive photocatalytic fuel cell (PFC), in this work, polyaniline/g-C 3 N 4 /Bi 2 O 3 /Ti photoanode was successfully prepared using silica-sol drop coating method, and assembled with Cu cathode to construct PFC to decompose rhodamine B and generate electricity simultaneously. The degradation rate, maximum photocurrent density and maximum power density of this PFC were 91.23%, 0.086 mA cm −2 and 4.78 μW cm −2 , respectively, which were 1.4 and 1.8 times, 2.4 and 4.5 times, and 1.9 and 7.3 times those of the corresponding values of the PFCs with g-C 3 N 4 /Bi 2 O 3 /Ti and Bi 2 O 3 /Ti photoanodes, respectively. This is attributed to the type II heterojunction structure formed among polyaniline, g-C 3 N 4 and Bi 2 O 3 in the polyaniline/g-C 3 N 4 /Bi 2 O 3 /Ti photoanode. Among them, polyaniline has π-π conjugated structure, which can rapidly transfer the electronic charge between g-C 3 N 4 and Bi 2 O 3 , thus enhancing the separation efficiency of photo-generated e − -h + pairs spatially and reducing their recombination, extending the visible light response wavelength of the photocatalyst, and finally improving its photocatalytic properties. This study can provide significant reference for the research of Bi 2 O 3 -based visible light responsive PFC.
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产品关联
DOI
PubMed
高影响因子
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