Journal of Materials Chemistry C
·
2023
·
IF 6.4
Liyang Dou,Shixiang Zhou,Jie Ma,Cheng Zhao,Peixin Cui,Shifang Ye,Peizhong Feng,Xiuquan Gu,Sheng Huang,Xueyu Tao
For high-performance flexible supercapacitors (FSCs), electrodes with high capacitance and flexibility play a significant role in determining the electrochemical behavior for their applications. Herein, conductive polymer hydrogel (CPH) electrodes have been successfully synthesized via in situ polymerization of aniline (ANI) in an aqueous solution of polyvinyl alcohol (PVA), phytic acid (PA), and hydroquinone (HQ), in which PA acted as a crosslinking agent and HQ served as an effective organic redox additive. The incorporation of HQ is expected to enhance the capacitance of conductive PHP hydrogel electrodes. The effective redox additive HQ incorporated PANI/HQ/PVA (PHP) hydrogel electrode exhibited a favorable specific capacitance of 642 F g−1 at 0.5 A g−1, which was much higher than the pristine one without introducing any redox additive (421 F g−1 at 0.5 A g−1) due to the extra redox reaction. Additionally, the PHP hydrogel electrode also showed excellent flexibility (93.3% capacitance retention after 500 cycles of bending) and superior cycling stability (81.5% after 10 000 cycles). For practical application, the all-hydrogel-state FSCs assembled with redox additive HQ incorporated PHP hydrogel electrodes and PVA/H2SO4 electrolyte delivered a high energy density of 12 W h kg−1 at a power density of 125 W kg−1, which was remarkably larger than that of PP-based FSCs (7.85 W h kg−1). The supercapacitor demonstrated prolonged cycling stability with a capacitance retention of 77.6% up to 10 000 charge/discharge cycles. This work provides a novel design for conductive polymer hydrogel electrodes with prospective applications in next-generation flexible energy storage devices.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Huansheng Wu,Chengyi Chu,Tao Chen,Mingli Yu,Jianjun Guo,Zhixiang Li,Gaojie Xu,Yuchuan Cheng,Aihua Sun
Photonic display cell that produce structural colors over a wide visible spectrum have been self-assembled from core–shell PS@PANI nanoparticles using a natural sedimentation method. A series of core–shell PS@PANI nanoparticles were prepared by deposition of PANI shells on the surfaces of the PS cores through an in situ polymerization of aniline monomers. The thickness of PANI shells can be well controlled by changing the weight ratio of aniline and PS nanoparticles . The response structure color characteristics of photonic display cell were investigated under different electric field. The position of these reflection peaks varied with the change of the external electric field in wide visible spectrum. The structurally colored materials exhibited colors resulting from the combined effects of the ordered colloidal crystal arrays and the electrochromism of PANI shell.
研究领域:
材料科学
·
纳米技术
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高影响因子
Materials Today Communications
·
2026
·
IF 4.5
Kun Wang,Dongdong Deng,Yuxiang Nie,Chao Liu,Hongxiao Yu,Tongxu Cui,Binbin Yao,Bingqi Xia
Biomass-derived carbonized cicada wings (CCWs) exhibit unique microstructures and demonstrate promise as lightweight microwave-absorbing materials. However, their practical application is hindered by inherently inadequate dielectric loss capabilities and poor impedance matching. To address this limitation, ternary CCWs/Reduced graphene oxide aerogels (rGOAs)/polyaniline (PANI) composites were fabricated through mechanical grinding of CCWs with rGOAs and PANI particles. The synergistic integration of rGOAs and PANI significantly enhanced the dielectric loss capacity and optimized impedance matching behavior, substantially improving electromagnetic wave attenuation performance. The minimum reflection loss ( RL min ) of −61.36 dB at 1.8 mm, and an effective absorption bandwidth ( RL ≤ −10 dB) of 5.2 GHz (12.8–18 GHz). This study reveals the significant potential of (CCWs/rGOAs):PANI composites as promising candidates for lightweight, high-performance microwave-absorbing materials.
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MOLECULES
·
2024
·Vol. 29
·期 13
·3147
·
IF 4.2
Ling Deng,Kailing Sun,Jie Liu,Zeyang Li,Juexian Cao,Shijun Liao
Aqueous zinc-ion batteries (ZIBs) have attracted burgeoning attention and emerged as prospective alternatives for scalable energy storage applications due to their unique merits such as high volumetric capacity, low cost, environmentally friendly, and reliable safety. Nevertheless, current ZIBs still suffer from some thorny issues, including low intrinsic electron conductivity, poor reversibility, zinc anode dendrites, and side reactions. Herein, conductive polyaniline (PANI) is intercalated as a pillar into the hydrated V2O5(PAVO) to stabilize the structure of the cathode material. Meanwhile, graphene oxide (GO) was modified onto the glass fiber (GF) membrane through simple electrospinning and laser reduction methods to inhibit dendrite growth. As a result, the prepared cells present excellent electrochemical performance with enhanced specific capacity (362 mAh g−1at 0.1 A g−1), significant rate capability (280 mAh g−1at 10 A g−1), and admirable cycling stability (74% capacity retention after 4800 cycles at 5 A g−1). These findings provide key insights into the development of high-performance zinc-ion batteries.
研究领域:
材料科学
·
能源存储技术
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PubMed
高影响因子
Science China-Technological Sciences
·
2017
·Vol. 60
·期 5
·749-757
·
IF 1.719
Zhu YuMei,Zhou XiaoWei,Chen DongSheng,Li Fang,Xue Tao,Farag Ahmed Saad
Magnetic Fe 3 O 4 @PANI@Au nanocomposites are fabricated through electrostatic self-assembly and seed growth methods. The rate constant K
app is calculated to be 8.63×10 −3 s −1 at room temperature for the reduction of 4-nitrophenol to 4-aminophenol with an excessive amount of NaBH4 as a model system showing outstanding catalytic efficiency and stability. For recyclable performance, the catalyst exhibits slight loss in catalytic performance on the conversion of 4-nitrophenol after running for more than 10 cycles. Besides, the smaller and simpler the structure, the easier the molecular structure can be degraded, and the faster the cationic dyes can be degraded than the anionic dyes, which can reveal the selectivity. For practical application, Congo red as a pollutant of the lake water is degraded rapidly after Fe 3 O 4 @PANI@Au is added to the solution in a few minutes. It has been demonstrated that magnetic Fe 3 O 4 @PANI@Au nanoparticle composite is a promising catalyst for environment sewage.
研究领域:
纳米催化
·
环境化学
·
材料科学
·
污染治理
·
应用化学
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ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Jiefeng Pan,Xiaohong Yu,Jiajing Dong,Lei Zhao,Lingling Liu,Jialin Liu,Xueting Zhao,Lifen Liu
Interfacial solar-driven evaporation provides one of the most promising green and sustainable technologies to deal with the knotty water crisis by extracting vapor from a variety of water sources powered by solar energy. Advanced photothermal materials play critical roles in interfacial solar-driven evaporation by photothermal conversion and heat localization. Herein, inspired by the unique hierarchical structure and light-harvesting function of diatoms, we propose a novel photothermal material with a diatom-like hierarchical nanostructure derived from TiO2-PANi-decorated bilayer melamine foam (TiO2-PANi@MF) for solar-driven clean water generation. The diatom-like hierarchical nanostructured TiO2-PANi@MF can realize full-spectrum light absorption and photothermal conversion by enhancing multiple light reflection and light scattering. Thanks to the diatom-like hierarchical nanostructure, TiO2-PANi@MF not only impressively achieves an evaporation rate of 2.12 kg m–2 h–1 under 1 sun irradiation but also shows a high solar steam conversion efficiency up to 88.9%. Notably, the TiO2-PANi composite also endows TiO2-PANi@MF with photocatalytic degradation capability. Apart from the excellent steam generation capability, optimized TiO2-PANi@MF also provides the high photocatalytic efficiency of dye degradation and maintains a high evaporation rate of more than 2 kg m–2 h–1. We believe that the proposed photothermal material with a diatom-like hierarchical nanostructure can envision promising practical applications in seawater desalination and sewage purification.
研究领域:
材料科学
·
环境科学
·
纳米技术
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ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Han Lin,Liping Song,Youju Huang,Qian Cheng,Yanping Yang,Zhiyong Guo,Fengmei Su,Tao Chen
The self-assembled gold nanoparticle (NP) superlattice displays unusual but distinctive features such as high mechanical and free-standing performance, electrical conductivity, and plasmonic properties, which are widely employed in various applications especially in biological diagnostics and optoelectronic devices. For a two-dimensional (2D) superlattice monolayer film composed of a given metal nanostructure, it is rather challenging to tune either its plasmonic properties or its optical properties in a reversible way, and it has not been reported. It is therefore of significant value to construct a free-standing 2D superlattice monolayer film of gold nanoparticles with an intelligent response and desired functions. Herein, we developed an easy and efficient approach to construct a gold nanoparticle superlattice film with a dual-responsive plasmonic switch. In this system, gold nanoparticles were coated by polyaniline (PANI) and then interracially self-assembled into a monolayer film at the air–liquid interface. The PANI shell plays two important roles in the superlattice monolayer film. First, the PANI shell acts as a physical spacer to provide a steric hindrance to counteract the van der Waals (vdW) attraction between densely packed nanoparticles (NPs), resulting in the formation of a superlattice by adjusting the thickness of the PANI shell. Second, the PANI shells provide the superlattice film with multiple stimuli such as electrical potential and pH change, leading to reversible optical and plasmonic responsiveness. The superlattice monolayer film can show a vivid color change from olive green to pink, or from olive green to violet by the change of the corresponding stimuli. Also, the localized surface plasmonic resonance (LSPR) of the superlattice monolayer film can be reversibly modulated by both by changing the local pH and applying an electric potential. Notably, a significant plasmonic shift of 157 nm can be achieved in the superlattice monolayer film when the PANI shell with a thickness of 35 nm and gold nanorods as a core were used. The superlattice monolayer film with dual-responsive plasmonic switches is promising for a range of potential applications in optoelectronic devices, plasmonic and colorimetric sensors, and surface-enhanced Raman scattering (SERS).
研究领域:
材料科学
·
光学
·
纳米技术
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Gaixuan Zhou,Nan Wu,Tao Mi,Xiaoji Liu,Zhijia Zhang,Songsong Zhang,Teng Ma,Guojun Wang,Qiang Wang,Lin Wang,Hao Wei
Achieving lightweight microwave absorbers with strong attenuation, broad bandwidth and small matching thickness remains challenging for electromagnetic protection. Hollow ceramic microspheres (HCMs) are attractive lightweight supports owing to their low density and hollow structure, but their limited intrinsic dielectric loss and negligible magnetic response restrict microwave attenuation. Although binary hollow microsphere/ferrite or hollow microsphere/conductive-polymer systems can improve electromagnetic response, simultaneously balancing attenuation and impedance matching remains difficult. Herein, hierarchical HCM@NZF@PANI ternary absorbers were constructed by sequentially anchoring Ni–Zn ferrite (NZF) particles and depositing polyaniline (PANI) onto aminated HCMs. In this architecture, HCMs act as lightweight frameworks and scattering centers, NZF introduces auxiliary magnetic response and magnetic/dielectric interfaces, and PANI serves as a dielectric regulation layer. Structural characterizations confirmed rough core–shell microspheres with abundant multiphase interfaces. Increasing PANI content enhanced complex permittivity, dielectric loss tangent and attenuation constant while maintaining favorable impedance matching. HNP-60 delivered the optimal absorption performance, with a minimum reflection loss of −47.55 dB at 16.24 GHz at 1.5 mm and an effective absorption bandwidth of 5.52 GHz covering 11.76–17.28 GHz at 1.7 mm. The enhanced performance arises from multiple scattering, PANI-derived conductive loss, dipole polarization, Maxwell–Wagner interfacial polarization and auxiliary magnetic response. Radar cross-section simulation further verified the echo suppression capability of the coating, demonstrating a feasible interfacial regulation strategy for lightweight, thin and broadband ceramic-based absorbers.
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Chemosensors
·
2026
·Vol. 14
·期 8
·176
·
IF 4.4
Xiaochun Han,Xuan Wang,Runze Liu,Junjie Yin,Zhiqiang Ai,Ruiyuan Xue,Qixue Liao,Huili Hao
In this study, an electrochemical immunosensor based on polyaniline/nano-Fe3O4(PANI/Nano-Fe3O4) nanocomposite (PANI/Nano-Fe3O4/Anti-FLA/BSA/GCE) was developed for the highly sensitive and selective detection of trace levels of fluoranthene (FLA) in marine environments. Fluoranthene antibodies (Anti-FLA) were covalently immobilized on a glassy carbon electrode (GCE) modified with PANI/Nano-Fe3O4via an EDC/NHS activation strategy, enabling specific recognition of FLA based on the antigen–antibody binding mechanism. The performance of the sensor was systematically optimized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), and differential pulse voltammetry (DPV). The results demonstrated a linear inverse relationship between peak current (Ip) and FLA concentration in the range of 0.5~80 ng/mL, with a regression equation of I = −1.55C + 174.602 (R2= 0.996). The limit of detection (LOD) was as low as 0.354 ng/mL (S/N = 3). In real seawater sample analysis, spiked recovery tests at three representative sites in the Maowei Sea, Guangxi, yielded recoveries of 95.44%~97.51%, with RSDs below 3%, confirming the sensor’s resistance to matrix interference. The synergistic effect of the porous conductive network of PANI and the high specific surface area of Nano-Fe3O4significantly amplified the electrochemical signal, while the molecular specificity of the antibody ensured targeted recognition. This sensor provides a novel and effective approach for the on-site rapid detection of polycyclic aromatic hydrocarbon (PAH) pollutants in complex marine environments, offering both high sensitivity and selectivity.
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CARBON
·
2026
·
IF 12.7
Qiong Shang,Huixia Feng,Jingpeng Liao,Shiyan Zhu,Haibin Wang,Yuan Zhao,Min Xie,Na Wen,Hongjing Wu
A series of PANI@ZIF-67 derivative/SEP composites are rationally designed via a stepwise optimization strategy. • The “reinforcing skeleton/skin” structure simultaneously constructs rich conductive networks and interfacial polarization while effectively avoid agglomeration of ZIF-67 derivative and PANI nanoparticles. • The optimized sample achieves a RL min of −57.67 dB at 2.09 mm, and with EAB of up to 4.87 GHz at 1.72 mm. • This work offers a feasible strategy for high-performance sepiolite-based microwave absorbers. Microwave absorbers with strong attenuation, broad bandwidth and thin matching thickness are highly desired for electromagnetic (EM) protection and stealth applications. Herein, sepiolite-supported PANI@ZIF-67 derivative ternary composites with a reinforcing skeleton/skin heterostructure were fabricated through room-temperature precipitation, thermal conversion and in-situ chemical oxidative polymerization. Sepiolite acted as a one-dimensional internal skeleton and heterogeneous nucleation platform, suppressing the agglomeration of ZIF-67 derivative nanoparticles and promoting multiple scattering of incident EM waves. The conductive PANI skin introduced continuous conductive pathways and abundant interfaces, enhancing conductive loss and interfacial polarization. By regulating the sepiolite content, the EM parameters were optimized, enabling a favorable balance between impedance matching and attenuation capability. The optimized composite delivered a minimum reflection loss of −57.67 dB at 12.16 GHz with a thickness of 2.09 mm and an effective absorption bandwidth of 4.87 GHz at only 1.72 mm. This work offers a feasible strategy for high-performance sepiolite-based microwave absorbers. Download: Download high-res image (567KB) Download: Download full-size image
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Ying Zhou,Xinyan Ye,Jinai Bian,Min Tian,Guomei Zhang,Yan Zhang,Caihong Zhang,Shaomin Shuang,Hong Cui
Nitrite contamination poses a significant hazard to environmental safety and human health, making it essential to develop highly sensitive and selective detection methods. In this study, a ternary polyaniline/tin dioxide/molybdenum disulfide (PANI/SnO 2 /MoS 2 ) nanocomposite was designed and synthesized for high-performance electrochemical nitrite sensing. The nanocomposite was thoroughly characterized using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). A glassy carbon electrode (GCE) modified with this nanocomposite was constructed as an electrochemical sensing platform for nitrite detection. The resulting sensor exhibited an electroactive surface area of 0.1344 cm 2 , which is 2.8 times that of the bare GCE. Owing to the synergistic effects among the three components, the sensor demonstrated excellent electrocatalytic activity towards nitrite oxidation. Under optimal conditions, it achieved a wide linear detection range from 0.9 μM to 1300 μM, with a sensitivity of 0.5606 μA · μM −1 · cm −2 , a detection limit of 0.33 μM (S/N = 3), and a quantification limit of 0.9 μM. The sensor also displayed outstanding selectivity, stability, and repeatability. Furthermore, it was successfully applied to detect nitrite in tap water samples, yielding satisfactory recovery rates.
研究领域:
环境监测
·
电化学传感
·
纳米材料
·
分析化学
·
水质检测
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高影响因子
LANGMUIR
·
2024
·
IF 3.7
Zhenmin Wu,Jie He,Guoyu Zhao,Xiaoyan Tang,Junqing Li,Wenhang Chen,Ruiqi Li
The current membrane materials used for oil–water separation suffer from low separation efficiency and poor durability, and membrane contamination is also a key issue that must be addressed urgently. In this paper, a superhydrophilic PANI/Ag/TA@PVDF composite membrane with PANI-Ag NPs heterojunction structure was prepared via chelation and reduction of Ag+ by tannic acid (TA) and in situ growth of hydrochloric acid-doped polyaniline (PANI). TA endows the prepared composite membrane with excellent superhydrophilicity and underwater oleophobicity, remarkable oil–water separation capacity (the separation efficiency of more than 97% for soybean oil), and extraordinary antifouling properties. Notably, the range of photodegradation is expanded from UV to visible light by the construction of a Schottky heterostructure between PANI and Ag NPs, the photocatalytic degradation ability of composite membrane for organic pollutants has been improved obviously, and the degradation efficiency for crystal violet (CV) is 97.9%. Considering these merits, the PANI/Ag/TA@PVDF composite membrane provides an effective strategy to overcome the shortcomings of existing membrane materials, presenting enormous potential in the treatment and purification of oily wastewater.
研究领域:
材料科学
·
环境工程
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高影响因子
危险品化学品经营许可证（带存储）