CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Runfeng Yu,Yunfei Xu,Xuxian Liu,Guoxin Zhang,Huiping Du,Ze Yang,Yaqun Wang
Currently, the utilization of flexible zinc ion batteries offers significant safety advantages for flexible energy storage devices. However, the limited mass-loading of these batteries presents a challenge to their long-term operation in such devices, thereby hindering further advancements. To address this, we present a mechanically flexible zinc-ion battery featuring a screen-printed PANI cathode. This battery achieves high loading and low weight, resulting in an energy density of 1.247mAh cm −2 and a maximum mass-loading of 15.78 mg cm −2 . Notably, the battery demonstrates excellent electrochemical performance, even when subjected to challenging conditions like hammering, sewing, stretching, cutting and bending.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Anxiang Li,Aiping Zhu
Spherical Fe 3 O 4 /polyaniline(PANI) nanocomposites with core-shell structure were prepared by oxidative polymerization of aniline on the Fe 3 O 4 − /aniline(ANI) + nanocomposite template formed by the electrostatic interaction between nano-Fe 3 O 4 and aniline salt. FTIR and UV–Vis results indicate that there is coordination interaction between Fe 3 O 4 and PANI interface. SEM and TEM results show that the thickness of PANI shell increases with the increase of aniline/Fe 3 O 4 mass ratio. Compared with PANI, Fe 3 O 4 /PANI nanocomposites maintain obvious redox activity in neutral medium. The organic composite coating was prepared by filling Fe 3 O 4 /PANI nanocomposites into waterborne acrylate/amino baking paint. The results show that the composition ratio of aniline/Fe 3 O 4 has a great influence on the metal anticorrosive activity of Fe 3 O 4 /PANI nanocomposites. The long-term metal corrosion resistance of Fe 3 O 4 /PANI(1:2) composite coating is three times as compared with unfilled organic coating . The metal anticorrosive mechanism of Fe 3 O 4 /PANI nanocomposites has been revealed to be the excellent nano-barrier effect and the metal surface passivation .
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Sabarinathan Ravichandran,Narayanamoorthy Bhuvanendran,Shuhua Hao,Shirong Sun,Thandavarayan Maiyalagan,Huaneng Su,Xihong Zu,Wenli Zhang
This work shows that PANI-SnO 2 nanorods with unique morphology and fine distribution of Pd-Ni alloy nanoparticles exhibit superior electrocatalytic performance toward methanol oxidation reaction (MOR). The amount of Ni content in Pd x -Ni y /PANI-SnO 2 nanorods plays a key role in Pd utilization. Ni in Pd x -Ni y /PANI-SnO 2 catalyst significantly reduces the CO adsorption on the active catalyst surface and enhances the electrode kinetics . The Pd 3 Ni 1 /PANI-SnO 2 composite exhibits high mass activity (1861.9 mA mg −1 ) with extended stability even after 10000 cycles (∼90% retention) compared to other Pd x Ni y counterparts, Pd/PANI-SnO 2 , and commercial Pd/C catalysts. Interestingly, adding Ni along with SnO 2 improves the electronic effect of Pd metal, significantly enhancing its catalyst activity and stability. Based on the results, we hope the present work brings an innovative approach to constructing efficient and cost-effective electrocatalysts for electrooxidation methanol in an alkaline medium.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Zhixiang Cui,Shengnan Tian,Xiaolong Liu,Qianting Wang,Sen Zeng,Junhui Si
The efficient elimination of toxic dye and Cr(VI) from wastewater by photocatalysis is still a challenge due to the unsatisfactory photocatalytic efficiency and difficult separation of the photocatalyst . Herein, the thermoplastic polyurethane (TPU) fiber membrane was prepared by electrospinning and then titanium dioxide (TiO 2 ) nanoparticles were loaded on the fiber membrane by ultrasonic-assisted method, followed by in-situ polymerizations of polyaniline (PANI) on the surface of the membrane. The synergistic effect of TiO 2 and PANI results in faster charge migration and more efficient separation of photogenerated charge carriers. Photocatalytic experiments revealed that TPU/TiO 2 /PANI fiber membranes were highly efficient for dye degradation and Cr(VI) reduction under visible light irradiation. 99.7 % of Congo red was degraded by TPU/TiO 2 /PANI membrane within 30 min, and the reaction rate reached 0.2 min −1 . The Cr(VI) reduction efficiency was up to 99.0 % within 25 min with a reaction rate of 0.128 min −1 . Additionally, the TPU/TiO 2 /PANI membrane exhibited a low loss in catalytic activity even after recycling 10 times, suggesting superior recycling stability compared to TPU/TiO 2 membrane. The result of the electron spin resonance (ESR) experiment showed that superoxide radicals (-O 2 - ) and hydroxyl radicals (-OH - ) were involved in the photocatalytic degradation process. The prepared TPU/TiO 2 /PANI fiber membrane combined with excellent photocatalytic capacity, good stability and easy recovery makes it a good candidate for removing dye and Cr(VI) from wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2024
·
IF 4
Deyu Qin,Boyang Zhou,Zhifang Li,Changlong Yang
Supercapacitors, as new electrochemical energy storage (EES) devices, with the lower energy density seriously hinder their realization of the requirements for future high energy storage devices. Thus, It is crucial to develop straightforward and efficient approaches to address the aforementioned challenges in future EES devices. In this paper, controllable multi-component composites are designed and ZnO is used as a conductive carrier in preparing layered structured ZnO-Zn/Co-metal-organic framework-polyaniline (ZnO-Zn/Co-MOF-PANI, ZZCMP) electrode materials by solvothermal and electrodeposition methods. The abundant active sites and the high specific surface area of the MOF are used to create the conditions for the loading of PANI, while it can establish an effective ion/electron transport channel with PANI to enhance the material utilisation and the electrochemical performance of the overall material. Add to that, the advantages of flexibility and rigidity of pristine MOF are made use of to provide sufficient space during the process of long-term charging and discharging, thus facilitating resistance to the structural deformation and enhancing the mechanical stability of the material. The optimized integrated electrode ZZCMP-10 exhibits a capacitance of 458.9 F . g − 1 when operated at a current density of 1 A . g − 1 . The asymmetric supercapacitor (ASC) is constructed with ZZCMP-10 as the positive electrode material and active carbon is used as the material for the negative electrode, which shows an energy density of 26 Wh . kg −1 at a current density of 1 A . g − 1 and a retention of 75.3 % capacitance is achieved after 5000 cycles of long-term charging and discharging. This study provides a reasonable exploration for designing high-energy-density electrochemical energy storage devices.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2023
·Vol. 140
·期 39
·e54460
·
IF 3
Yanyan Zheng,Chongyi Chi,Denglong Chen,Tuer Zeng,Yuxia Zhang,Xiaoyu Lu,Qinhui Chen
The filled sheet-like inorganic materials can usually improve the anticorrosion performance of the coating. Herein, the Janus nanosheets (JNSs) with two-dimensional structure were prepared by phase separation method, modified by polyaniline (PANI) on the amino side of JNSs and composited with epoxy resin (EP). Scanning electron microscope (SEM), transmission electron microscopy (TEM), atomic force microscope (AFM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetry (TG) were used to characterize the morphology and chemical structure of JNSs and PANI@JNSs. The anti-corrosion performance of coatings was measured by electrochemical impedance spectroscopy (EIS) and salt spray experiment. Compared with pure EP, the |Z| 0.01Hz of 0.5%-JNSs/EP coating and that of 0.5%-PANI@JNSs/EP coating reached 5.6 × 10 8 and 5.4× 10 10 Ω·cm 2 after immersed for 35 days, nearly 2 and 4 orders of magnitude higher than pure EP respectively. The excellent anti-corrosion performance of 0.5%-PANI@JNSs/EP coating is due to the synergistic effect of physical barrier effect of PANI@JNSs, interfacial interaction between PANI@JNSs and epoxy resin and passivation effect of PANI. Moreover, PANI@JNSs possess both strengthening and toughening effects on composite coating. Janus nanosheets provide a new idea and method for preparing high-performance anticorrosive materials.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 19
·28695-28705
·
IF 0
Liu Hongyu,Ye Wei,Zhang Huan,Wang Huicai,Wei Junfu
Here, polyaniline/polyvinylidene fluoride (PANI/PVDF) nanofiber composite membrane was fabricated using electrostatic spinning technology to remove hexavalent chromium Cr(VI). The employment of PANI not only extremely enhanced the hydrophilic property of the nanofiber membrane, but also facilitated the transfer of Cr 2 O 7 2− from water to the membrane. The PANI/PVDF membrane had an extremely excellent performance in getting rid of Cr(VI) and a quite large flux (250 L/m 2 h). The maximum adsorption quantity of the membrane could reach 334.5 mg/g in which adsorption played 52.12% part and reduction played 47.87% part. The removal rate could reach nearly 100% immediately in the permeate solution under filtration while it needed 240 min to reach 100% only by static adsorption. Therefore, the interception of the membrane and the adsorption reduction of PANI had synergistic effect on removal of Cr(VI). Furthermore, the removal rate of Cr(VI) could still reach 95.97% after reused 8 times. The membrane showed a very good reusability and application prospect. Graphical Abstract
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Wen Long Liu,Yong Qiang Guo,Tao Lin,Hong Chao Peng,Ya Ping Yu,Fan Yang,Sheng Chen
MXene-based electrodes have shown great performance as flexible supercapacitors in the application of portable and wearable electronics. Nevertheless, 2D MXene nanosheets suffer from severe self-stacking issues during electrode preparation, which can significantly limit the charge storage capacity. Herein, a simple yet efficient strategy is developed for fabricating the supercapacitor electrode based on the MXene@PANI coated activated carbon cloth (MXene@PANI-ACC). The resulting MXene@PANI-ACC possesses 2D/0D/1D hierarchical nanostructures , where the 1D carbon fibers are uniformly coated with MXene@PANI nanocomposites and the 0D PANI nanoparticles are densely anchored on the surfaces of the 2D MXene nanosheets. This hierarchical structure can effectively tackle the restacking issue of MXene nanosheets during electrode fabrication and provide the obtained electrode with good conductivity for fast electron transfer . Benefiting from those features, this MXene@PANI-ACC electrode demonstrates an excellent area capacitance of 1347 mF/cm 2 at a current density of 1 mA/cm 2 and can retain of its original capacity at 20 mA/cm 2 after 5000 cycles. The excellent electrochemical performance highlights great promise of the developed electrode with hierarchical nanostructures for applications in high-performance energy storage devices.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Meiling Li,Huaiyuan Wang,Yuxin Fu,Jing Jing,Xiguang Zhang,Chijia Wang,Ruitao Wang,Zhanjian Liu
The application of superhydrophobic coatings in the corrosion protection field is limited by their poor surface structural stability, interfacial compatibility and adhesion strength. Herein, we prepared an epoxy/PANI@CNTs composite superhydrophobic coating with excellent mechanochemical stability by the combination of organic-inorganic hybridization and chemical modification. PANI@CNTs nanofillers synthesized by in-situ polymerization of aniline on the CNTs surface were used to construct the necessary nano-microstructures for superhydrophobicity and enhance the corrosion inhibition. The optimal coating showed high water contact angle of 159.5 ± 0.8° and low sliding angle of 3 ± 0.4°. The adhesion strength of the prepared coating attained the highest grade (GB/T9286) due to the formation of hydrogen bonds among polyaniline, silicon hydroxyl groups and the substrate surface. Moreover, the prepared coating maintained its superhydrophobicity even after 480 s of water impact, 1000 g falling sand impact or 500 abrasion cycles, which can be ascribed to the multi-interface enhancement generated by the organic-inorganic hybridization and the hydrogen bonds interaction. Furthermore, the prepared coating also possessed outstanding corrosion resistance with low-frequency impedance modulus remained at 4.79 × 10 8 Ω·cm 2 after immersion for 15 days, which was approximately three times that of the superhydrophobic coating without PANI@CNTs. This is mainly due to the triple protection mechanism formed by the air-film shielding, physical shielding of the coating and the synergistic passivation of polyaniline, endowing it with excellent anti-corrosion performance. Therefore, this study is expected to provide a theoretical reference for the application of superhydrophobic coatings in the corrosion protection of metal mechanical equipment.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Zhen Wang,Zhi Cheng,Li Xie,Xianliang Hou,Changqing Fang
Ti 3 C 2 T x MXene has been explored as an efficient electromagnetic interference (EMI) shielding material because of its high electrical conductivity , large specific surface area, rich surface defects , and abundant functional groups. Herein, core-shell Fe 3 O 4 @PANI composites were prepared, followed by the preparation of a flexible and lightweight Ti 3 C 2 T x /Fe 3 O 4 @PANI composite film with sandwich intercalation structure by vacuum-assisted filtration, using Ti 3 C 2 T x MXene as a matrix material. The ultrathin composite film with a Ti 3 C 2 T x nanosheets to Fe 3 O 4 @PANI weight ratio of 12:5 reached a maximum EMI shielding effectiveness (SE) value of 58.8 dB at a thickness of only 12.1 μm. This is much higher than the SE of pure conductive Ti 3 C 2 T x films of the same thickness. After adjusting the film thickness by increasing the concentration of Ti 3 C 2 T x , an SE of 62 dB was achieved at a thickness of 16.7 μm. The ultrathin Ti 3 C 2 T x /Fe 3 O 4 @PANI films exhibit potential for application in packaging, wearable electronic equipment, and military fields. Moreover, they provide insight into the preparation of lightweight and progressive electromagnetic shielding materials.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2023
·
IF 2.2
Boyang Zhou,Hairui Li,Zhifang Li,Shuai Ji,Yueyu Li,Jian Yang,Changlong Yang
Aiming at the problems of the destroyed structure, the decreased capacitance retention rate and the bad cycle stability of polyaniline (PANI) during the continuous charge/discharge due to the irreversible deformation of PANI, this article proposes that the TEMPO-oxidized cellulose nanofiber (TOCNF), doping sulfonated multi-walled carbon nanotube (SMWCNT) enhances its electrical conductivity, the microstructure of the polymer is controlled via in-situ polymerization of the aniline on the surface of TOCNF-SMWCNT, the composite electrode materials PANI/(TOCNF-SMWCNT) is synthesized. The composite electrode materials were characterized by SEM, TEM, XRD, XPS, FTIR, and Raman, and the structure-activity relationship of the enhanced electrical properties was also clarified. The test results showed that the specific capacitance of PANI/(TOCNF-SMWCNT) is 546.0 F/g at a current density of 1.0 A/g. In addition, the composite electrode exhibited good cyclic stability with retention of 82.4% even after 5000 cycles when the current density is 1.0 A/g.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Wanglin Zhang,Xuanhao Wu,Xiaoyan Peng,Li Zhu,Hongkang Wang,Hui Liu,Hongye Yuan
The advancement of wireless gas sensing signifies a substantial leap forward in gas detection and intelligent monitoring technologies. This necessitates stringent design criteria for gas sensitive materials with good solution processability, conductivity, and porosity, whose design and synthesis remain challenging yet highly sought-after. Herein, the fabrication of NUS-8/polyaniline (PANI) nanosheets is presented with excellent solution processability, high porosity, triboelectric property, and superior electrical conductivity via a template-directed polymerization strategy. Solution processable NUS-8 nanosheets, synthesized directly by a “one-pot” approach, serve as templates to enhance the “on-site” polymerization of aniline, resulting in the formation of PANI layer on NUS-8 nanosheets with a thickness of 7 nm. The resultant NUS-8/PANI nanosheets exhibit outstanding solution processability, and a film conductivity of 8.6 S m −1 . The solution processability enables the facile fabrication of homogeneous and compact NUS-8/PANI films and thus their integration onto electronic devices targeted for multifunctional sensing. The NUS-8/PANI coated sensors demonstrate sensitive and selective detection at room temperature toward ultratrace ammonia with a detection limit of 120 ppb. A wireless sensing system based on the NUS-8/PANI-coated sensor is capable to monitor the spoilage process of meat. This study paves novel avenues for designing and synthesizing gas-sensitive materials for practical applications.
研究领域:
材料科学
·
传感器技术
·
化学工程
✓ 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）