MATERIALS TECHNOLOGY
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2018
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IF 1.232
Lei Liu,Qinyi Li,Zijing Wang,Yu Chen
Sustainable biomass-derived carbonaceous material plays an intriguing and promising role in the development of sodium ion batteries (SIBs) electrodes. Herein, we report a low-cost anode material of phosphorus-doped hollow carbon sphere derived from phytic acid (P-HCS). Being tested as the anode in SIB, it shows high capacity, outstanding cycle life, and excellent cycling stability. The P-HCS electrode delivers an initial charge capacity of 278 mAh g−1 at a current density of 20 mA g−1, and 234 mAh g−1 at a current density of 100 mA g−1 after 300 cycles. Moreover, compared with hollow carbon sphere (HCS), the P-HCS exhibited much superior rate capability, with a good capacity retention of 90% at a current density of 500 mA g−1 after 150 cycles.
研究领域:
材料科学
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能源存储
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
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2020
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IF 3.83
Guodong Zhang,Guangyue Shi,Wentao Yuan,Yao Liu
In this study, phytic acid (PA) surface treatment was used to prepare iron-based soft magnetic composites (SMCs). The composition and microstructure of the SMCs were analyzed to assess changes in the magnetic properties . As the treatment time increased, the insulating layer on the powder surface gradually thickened, changing the internal morphology and conductive path of the annular samples after compacting. The changes in the magnetic properties and core loss were attributed to the increased resistivity and enhancement of the magnetic dilution effect. The optimal soft magnetic performance ( μ m = 389, P t = 235.1 mW/g measured at 100 kHz and 50 mT) was obtained by adjusting the processing time. This reduces the loss by 52.96% compared to the untreated sample and improves the application potential of soft magnetic composites at medium and high frequencies.
研究领域:
材料科学
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电磁学
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMISTRY
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2020
·Vol. 38
·期 11
·1292-1298
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IF 3.826
Chuanchuan Zhao,Yongjun Gao,Ziyi Zhang,Ding Ma
Summary of main observation and conclusion Sustainable phytic acid and cellulose are selected as precursors to fabricate P-doped carbon material (C-P-500), which possesses the high surface area and exhibits excellent catalytic activity and stability in the oxidative coupling of benzylamines (conversion > 95%, yield > 95%). During the carbonization of cellulose in the muffle furnace, phytic acid can efficiently prevent the cellulose-derived carbon from combustion and create micro/meso porous structure because of its special function of fire retardation. Control experiments and characterizations demonstrate that P-containing groups anchoring on C-P-500 improve the catalytic performance of carbocatalyst in the oxidation of benzylamines to imines. The excellent catalytic activity of C-P-500 should be contributed collectively by carbonyl and P=O(OH) 2 groups. Due to the sustainable property of precursors and simple methodology for fabricating P-doped carbocatalyst, along with the moderate reaction conditions, it is a green catalytic system for the oxidative coupling of benzylamines to imines.
研究领域:
化学
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可持续化学
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催化科学
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产品关联
DOI
高影响因子
Materials Science & Engineering C-Materials for Biological Applications
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2017
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IF 4.164
Nan Wang,Hongxiu Dai,Donglei Wang,Houyi Ma,Meng Lin
This study reports a sensitive electro-analytical method for the determination of trace amounts of Cu 2 + using a phytate functionalized polypyrrole nanowires (PPy NWs) modified glass carbon electrode. The phytic acid/polypyrrole (PA/PPy) NWs were prepared by an electrostatic adsorption and ultrasonic mixing. The results showed that both PPy NWs and PA/PPy NWs modified glassy carbon electrodes have electrochemical responses toward Cu 2 + . However, owing to the synergistic contribution between the PPy NWs and PA, the PA/PPy NWs modified electrode exhibited higher sensitivity than that of PPy NWs modified electrode. The PA/PPy NWs composites functionalized electrodes showed a good linear relationship with Cu 2 + at concentration ranges of 10–60 μg·L − 1 , and the limit of detection (S/N = 3) was 3.33 μg·L − 1 . In addition, the electrochemical sensor was applied to assay Cu 2 + in real water samples.
研究领域:
分析化学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2023
·
IF 4.6
Guangyan Chen,Zai-Yin Hu,Nuo Chen,Zongjiang Zhao,Chao Li,Yi Xie
The development of environmentally benign flame retardant technology is crucial for flexible polyurethane foam (FPUF). Herein, a hybrid organic-inorganic coating (CNT–NH 2 –PA) was prepared through a facile salt formation reaction between biomass phytic acid (PA) and aminated carbon nanotubes (CNT-NH 2 ) on FPUF. The obtained flame retardant foam (FPUF@CNT–NH 2 –PA) passed the UL-94 rate of V-0, with a high limiting oxygen index (LOI) of 27.6 ± 0.3 %. More importantly, the cone calorimeter (CC) results demonstrated that the peak heat release rate (PHRR) of FPUF@CNT–NH 2 –PA was reduced by 39.7 % compared with that of neat foam. The mechanism analysis confirmed that a dense and compact char layer was formed during the combustion, which can effectively prevent the massive diffusion of heat and oxygen from the FPUF. Besides, the compression tests have clearly shown that the FPUF@CNT–NH 2 –PA retained the excellent mechanical nature of FPUF. Therefore, this easy and efficient process provided a powerful basis for technology and potential industrial applications.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
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2023
·
IF 5.9
Meiqin Wu,Yunhui Chen,Hou-Yong Yu,Xiaosong Liu,Yanjuan Dong,Peng-Cheng Qian,Xiaohua Wang
Traditional halogenated flame retardants (FRs) have been severely hindered because they are toxic and hazardous carcinogenic byproducts during their application. In this study, we present a biobased FR composite consisting of cellulose nanocrystals (CNCs) modified with melamine (MEL) and phytic acid (PA) through successive grafting and electrostatic adsorption processes. It was found that the CNC/MEL/PA nanocomposite had a noticeable highly improved thermal blocking performance of the cellulose nanofibril aerogel, excellent carbon layer formation, and high thermal insulation ability because of a synergistic FR effect between the components in both the condensed and gas phases. These findings highlight the potential of nanoscale engineering in producing structural foams with excellent fire-retardant properties using cellulose and other nanosized fibrous biomaterials.
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2023
·
IF 10.9
Xiang Zhang,Kai Yao,Xiao Wang,Jinli Wang,Hongtao Guo,Xiaona Ma,Yang Yang,Hongjing Wu,Wei Lu
Hybrid engineering is gradually deemed as a powerful approach to solving the bottleneck problem of metal-organic framework (MOF) derived absorbers for practical application. Herein, a new type of semiconductor/carbon-based hybrid material was successfully prepared by phytic acid (PA) modification and carbonization of MOF/bacterial cellulose (BC) precursors, which remedied the drawbacks of structural instability, lethal byproducts and complicated steps reported previously. Specifically, the obtained Fe(PO 3 ) 2 @C/phosphorus-doped carbon foam (Fe(PO 3 ) 2 @C/PCF) had a 3D hybrid micro-nanostructure that integrated spatial microcurrent network, multi-level pores, heterogeneous interfaces and lattice defects, showing its unique advantages of low filler content (15 wt.%), moderate surface reflectivity, multi-band microwave absorption and radar stealth. The experimental analysis and CST simulation further revealed that PA dosage can precisely adjust the hybrid phase content, pore texture and electromagnetic parameters of the final product to achieve synergistic enhancement of multiple dielectric response, impedance matching and attenuation capacity. As a result, an effective bandwidth (EAB) of 6 GHz and a minimum reflection loss (RL min ) of −57.0 dB were obtained in the Ku- and C-bands, respectively. These encouraging results may advance the development of novel MOF-derived absorbents based on the hybridization principle.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
ACS Applied Polymer Materials
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2025
·
IF 4.7
Zhiwei Zhao,Jin Fang,Qingqing Ni,Zhenzhen Xu
Moisture-electric generators (MEGs) can continuously harvest clean electricity from ubiquitous environmental water vapor, making them promising candidates as power sources for next-generation low-power wearable electronics. However, existing MEG devices still face significant challenges in output performance, stability, and environmental adaptability, particularly exhibiting low output voltage and structural instability. To address these challenges, this study presents a high-performance MEG based on poly(vinyl alcohol)/phytic acid (PVA/PA) composite nanofibers. A three-dimensional cross-linked porous hydrophilic network was fabricated via electrospinning, enabling efficient proton dissociation and excellent electrical output performance. Under 97% relative humidity (RH), a single MEG with an effective area of 2 cm2 delivers a sustained open-circuit voltage (VOC) of 0.81 V and a short-circuit current (ISC) of 3.1 μA, achieving a peak power output of 0.65 μW. Notably, the device demonstrates excellent structural and operational stability, maintaining high-efficiency power generation for over 7 days, and can completely dissolve in water within about 5 h and fully biodegrade under natural conditions within ∼120 h. Density functional theory (DFT) calculations reveal that the synergistic PVA/PA system exhibits a strong binding affinity toward water molecules, with a binding energy of −1.602 eV, further supporting its efficient moisture uptake and proton dissociation mechanism. Furthermore, the MEG device can be integrated in series or parallel configurations using multiple units to meet diverse voltage and current requirements. It has been successfully applied to capacitor charging and breath monitoring, demonstrating broad potential for use in self-powered wearable electronic systems.
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Yu Zhao,Ziguang Wang,Yu Wang,Zien Cheng
Hydrogels are promising materials for flexible wearable electronics; however, they often encounter limitations in practical applications due to environmental instability and weak mechanical properties. This study developed a multifunctional composite hydrogel by integrating phytic acid (PA) and hydrophobic lauryl methacrylate (LMA) chains into a polyacrylamide (PAM) and carboxymethyl cellulose (CMC) network, resulting in a synergistic multi-dynamic cross-linked structure. The hydrogel exhibits remarkable tensile strength (1.06 MPa), high ionic conductivity (1.45 S/m), and excellent environmental tolerance, maintaining its flexibility and conductivity even at −20 °C. Additionally, it demonstrates significant anti-swelling properties, broad-spectrum antimicrobial activity, and outstanding cytocompatibility (cell viability >97 %). As a multifunctional sensor, it shows high sensitivity (GF = 2.13), a fast response time, and stable performance over more than 1000 cycles. This hydrogel sensor reliably monitors physiological signals such as electrocardiograms (ECG), electromyograms (EMG), and respiratory patterns, demonstrating particular promise in diagnosing sleep-related breathing abnormalities in patients with heart failure. This study provides a robust and versatile platform for next-generation wearable devices.
研究领域:
材料科学
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生物医学工程
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可穿戴传感器
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柔性电子学
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生理监测
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CELLULOSE
·
2025
·
IF 4.8
Li Min,Shi Xuehui,Tao Furong,Ji Hairui,Ji Xingxiang,Tian Zhongjian,Chen Jiachuan
The flammability of most decorative paper poses a potential fire hazard to buildings. In this study, softwood fibers were modified with phytic acid and urea to obtain phytic acid esterified cellulose (PAEC) with good flame-retardant properties. Due to the introduction of phosphorus and nitrogen elements in PAEC, the heat release rate (HRR) and total heat release (THR) decreased from 170.9 W/g and 7.6 kJ/g to 104.3 W/g and 4.9 kJ/g, respectively, when compared with raw fibers. Subsequently, PAEC was composited with talc powder, carboxylated nanofibers, and calcium ions to prepare flame retardant paper. The results indicated that the HRR of the 170.9 W/g of the paper was decreased to 47.0 W/g. The network structure formed by the cross-linking between carboxyl groups in nanofibers and Ca 2⁺ enhanced the paper’s mechanical properties. The strength reached 12.18 MPa, which was 1.4 times as high as that of raw paper. Therefore, the prepared flame-retardant paper is expected to provide a candidate for the preparation of decorative paper. Graphical abstract
研究领域:
材料科学
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消防安全工程
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高分子化学
·
造纸技术
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Zhihao Zhang,Jinpeng Liu,Jinxu Teng,Junchao Huang,Yuhua Wang
As a biodegradable and non-petrochemical produced polymer, poly (vinyl alcohol) (PVA) films have great potential in packaging fields due to their excellent oil resistance, gas barrier capacity, and mechanical performance. Yet the high flammability of PVA films always draws the fire risks even at an instant contact with fire or voltaic arc, which is demanding the fireproof ability. The traditional method of adding inorganic flame retardants and organic phosphate ester will raise mechanical problems, opacity, and food toxicity that shall not be utilized in the future. Herein, we propose a multiple cross-linking method by introducing bio-based β-cyclodextrin (CD) and phytic acid (PA) to endow PVA composite film (PCP) the fireproof and antibacterial capacity and retain the mechanical properties and transmittance. The results indicated that due to the catalytic charring effect of PA and CD, the peak heat release rate and total heat release of PCP 0.25 decreased by 63.3 % and 38.8 %, respectively. The char residues increased from 6.1 to 32.1 wt% and reached to UL-94 V-0 rating. Thanks to the physically cross-linked network formed by CD and PVA and the chemically cross-linked network formed by PA and PVA, the tensile strength and elongation at break of PCP 0.25 increased from 61.6 MPa and 224.3 % for PVA to 87.6 MPa and 382.0 %, respectively. The transmittance of PCP 0.25 in the visible light range was almost identical to that of pure PVA. While its ultraviolet light transmittance was below 10 %, demonstrating excellent transparency and UV-shielding property. In vitro antibacterial tests, due to the abundant phosphate groups in PCP 0.25 , enzymes on the surface of bacterial cell walls could be deactivated, leading to bacterial lysis and death, thereby exhibiting inhibitory effects against both Escherichia coli and Staphylococcus aureus . Moreover, compared to the commercial food preservation materials, the composite film shows better water vapor barrier ability, which also shows excellent fire resistance, presenting the great prospective in food preservation.
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2014
·
IF 4.086
Xiang Gao,Caicai Zhao,Haifeng Lu,Feng Gao,Houyi Ma
The influence of phytic acid (PA) on the corrosion of iron under acidic and neutral conditions was investigated by means of Electrochemical Impedance Spectroscopy (EIS) and polarization curve methods. The electrochemical results indicate that, PA can effectively inhibit the corrosion of iron as a mixed type inhibitor in H 2 SO 4 solution; however, PA tends to react with the dissolved Fe (II) ions, forming stable metal chelate complexes with strong anodic inhibition action on the iron surface, in Na 2 SO 4 solution. Fourier Transform Infrared Spectroscopic (FTIR) analysis confirms the existence of PA or its salts on the iron substrates. X-ray Photoelectron Spectroscopic (XPS) characterization demonstrates that PA adsorbs on the iron surface mainly in the form of undissociated molecules under acidic condition, while phytate ions may bind to the iron substrate through connection of C-O-P bond with oxidized iron surface under neutral condition. The great difference in binding mode between PA and the iron substrate makes PA act as either a corrosion inhibitor or a film former under different conditions.
研究领域:
腐蚀科学
·
电化学
·
材料科学
·
表面化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）