International Journal of Electrochemical Science
·
2023
·
IF 1.5
Haichao Zhao,Tong Liu,Chengcheng Jiao,Feng Yang
In this work, epoxy coatings containing phytic acid-doped tetraaniline (PATA) nanoparticles for Q235 steel were prepared and their anticorrosive properties were investigated. Synthesized PATA nanoparticles were characterized by scanning electron microscope (SEM), scanning probe microscope (SPM), photoelectronic spectroscopy (XPS), and Raman test. The anti-corrosion properties of coating were studied by the open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and scanning vibrating electrode technique (SVET). The experimental results showed that the content of the PATA nanoparticle has a positive effect on the barrier ability of the epoxy matrix. The epoxy coating containing 0.25 wt% of PATA nanoparticles has superior corrosion protection property and a satisfactory self-healing effect. The self-healing effect of PATA/EP coating ascribes to the synergistic effect of the passivation of phytic acid ions and tetraaniline. As an effective anticorrosion filler, the PATA nanoparticle has the potential to apply to the field of corrosion protective coating.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CORROSION SCIENCE
·
2022
·
IF 7.72
Chao Yu,Meng Zhang,Fei Xu,Lei Meng,Yuting Wei,Yuanyuan Chang,Meng Zhang,Dengyu Fu,Huaiyuan Wang
Designing effective strategies to satisfy the anti-corrosion requirements in high-pressure oxygen and high salt environment still remains a huge challenge. Herein, the oriented polyaniline nanofibers doped with phytic acid were synthetized on the surface of sericite (PPANI-Ser) by in-situ polymerization to endow epoxy coating with ultrahigh anti-corrosion performance. The |Z| 0.01 Hz of PPANI-Ser/EP coating immersed in 12 wt% NaCl solution still maintained above 10 11 ohm⋅cm 2 after 90 days of immersion at 60 °C. Significantly, after 10 days immersion in the coupling environment of 3 MPa pure O 2 and 12 wt% NaCl solution, PPANI-Ser/EP coating had almost no deterioration.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2021
·Vol. 14
·期 1
·6
·
IF 4.329
Xueyao Wang,Dongmei Yang,Xianhui An,Xueren Qian
Phytic acid doped polypyrrole (PPy) as a mediating layer was in-situ coated on cotton fibers (CFs) to promote the growth of Prussian blue (PB) and construct the PB/PPy@CFs composite. The results showed that the proper amounts of PA doped PPy in-situ generated significantly promoted the growth of PB on CFs, the PB deposition ratio increased from 12.29% (PB@CFs) to 32.4% (PB/PPy@CFs), and the growth of PB on PPy@CFs could be completed in 4 h. Scanning electron microscopy (SEM) showed that the PB particles with perfect nano cubic structure were formed in the composite. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) showed that both PB and PPy were successfully deposited on CFs. The PB/PPy@CFs composite had excellent light absorption, hydrophilicity, wettability, and photothermal property, and the surface could be heated up to 81.5 °C under one sun illumination. The PB/PPy@CFs composite as a photothermal conversion material was used for solar-driven interfacial water evaporation, the water evaporation rate was 1.36 kg·m−2·h−1at the optical concentration of 1 kW·m2, and the corresponding photothermal conversion efficiency increased from 81.69% (PB@CFs) to 90.96% (PB/PPy@CFs).Keywords:cotton fibers;Prussian blue;polypyrrole;phytic acid doping;mediating layer;photothermal conversion material
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 19
·9143-9152
·
IF 3.3
Yaxiong Zhao,Ming Zhou,Ruifeng Ni,Yi Li,Jiangyu Huang,Zhenyu Li,Jingyu Chen
Pseudocapacitive electrodes with high rate retention and good cycling stability are highly desirable in constructing high-performance supercapacitors due to their rapid charge/discharge capacity and long service life, but they are still a challenge to realize. Herein, a ternary Fe3O4/reduced graphene oxide/phytic acid (PA)-doped polyaniline (F-RGO-p-PANI) hybrid has been prepared to address this challenge. Prompted by the multiple synergistic effects among RGO, Fe3O4, PA, and PANI, our F-RGO-p-PANI material exhibits a high specific capacitance (Cs) of 459.1 F g−1 with a current density of 0.5 A g−1. Interestingly, our supercapacitor displays both high capacitance retention (∼83.5%) under a broad current density range (from 0.25 to 20 A g−1) and high cycling stability (∼80.8%) over 10 000 cycles under a high current density (20 A g−1), better than previous results. Moreover, our supercapacitor also shows a high specific energy density of 58.1 W h kg−1 with a power density of 0.5 kW kg−1. These results imply that our ternary F-RGO-p-PANI holds tremendous potential in fabricating rapidly charged/discharged supercapacitors.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Zhijian Jiang,Fang Wang,Bingyao Sun,Ying Wang,Zushun Xu,Quanyuan Zhang
Electrodialysis provides a sustainable strategy for acid recovery with operational simplicity and energy efficiency. This study utilized adenine’s basic sites to anchor phytic acid (IP6) and prepared phytic acid-doped adenine-modified sulfonated poly ether ether ketone (SPEEK x A/IP6) membranes with varying adenine substitutions. The acid-base crosslinking among adenine, phytic acid, and sulfonic acid groups enhances membrane mechanical characteristics and dimensional stability. The breaking strength increased 8 %–22 % relative to the pure SPEEK. The interactions between phytic acid and SO 3 H groups with adenine promote proton transport, while the large planar cationic structure of protonated adenine enhances membrane permselectivity. The SPEEK-40A/IP6 membrane exhibited superior H + flux (2.16 mmol m −2 s −1 ) and H + /Fe 2+ permselectivity (58.5), which is 1.72 times higher than the original SPEEK and surpasses both ASTOM (38.9) and recent reported membranes. These findings indicate the significant potential of SPEEK- x A/IP6 membranes for acidic wastewater acid recovery.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 44
·25932-25941
·
IF 3.049
Ailing Feng,Mingliang Ma,Zirui Jia,Meng Zhang,Guanglei Wu
In this work, a novel CF@NiFe2O4 composite coated with phytic acid-doped polyaniline (CF@NiFe2O4@p-PANI) was facilely synthesized. First, a typical solvothermal reaction was applied to obtain the CF@NiFe2O4 composite, and then the phytic acid-doped polyaniline was grown in situ on the surface of the CF@NiFe2O4 composite. The morphological structure, chemical composition, and surface functional group distribution of this hybrid were systematically evaluated. The magnetic saturation (Ms) value of the hybrid is 29.9 emu g−1, which represents an improvement in the magnetic loss. According to its reflection loss curve, the hybrid exhibits a superior EM wave absorption capacity, with a minimum reflection loss value and effective absorbing bandwidth of −46 dB when the sample thickness is 2.9 mm, and an effective absorption bandwidth of 5 GHz when the sample thickness is 1.5 mm. The excellent performance of this hybrid can mainly be attributed to its ideal matching of magnetic loss and dielectric loss, interfacial polarizations, eddy current loss and interface relaxation. This new material has the potential to be a superior electromagnetic wave absorber or applied as a functional filler to modify resin matrices.
研究领域:
材料科学
·
电磁学
✓ 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）