Frontiers of Materials Science
·
2025
·Vol. 19
·期 3
·1-12
·
IF 2.3
Li Guofu,Sun Yuhua,Dong Yuchi,Chen Di,Hu Jing,Sun Mizhen,Yuan Jinxiu,Zhou Ziyan,Xie Guoqiang,Feng Lijuan,Zhang Yingchao,Chen Yingjie,Yu Liyan,Dong Lifeng
Incorporating a secondary metal and engineering heterogeneous nanostructures can significantly enhance the electrochemical performance of non-enzymatic glucose sensors. Herein, NiCo 2 O 4 nanowire (NW) arrays were enveloped with NiCo 2 O 4 nanosheets (NSs) using a simple hydrothermal method. NSs improved the electronic conductivity of NW arrays, while arrays prevented the aggregation of NSs, resulting in exceptional glucose sensing performance. In 0.1 mol·L −1 NaOH electrolyte, this composite electrode demonstrated remarkable sensitivity (7641 µA·mmol −1 ·L·cm −2 ), broad linear detection range (1 to 1250 µmol·L −1 ), low detection limit (0.16 µmol·L −1 ), and rapid response time (within 1 s), as well as excellent selectivity, reproducibility, and stability. Such a unique architecture of NiCo 2 O 4 NW arrays enhanced the specific surface area of the composite material, facilitating the efficient electron transfer between copper foam and NiCo 2 O 4 NSs. This work provides an economical and efficient approach for developing enzyme-free glucose sensing catalysts with superior electrochemical properties.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 30
·期 7
·18522-18534
·
IF 5.19
Wang Teng,Meng Zhaofu,Liu Lin,Li Wenbin
Titanium dioxide (TiO 2 ) nanoparticles interact with organic–inorganic pollutants in the environment, and these interactions affect their environmental behavior. The mechanisms of the interaction between TiO 2 and organic–inorganic pollutants on the surface of clay minerals are still unclear. In this work, isotherm adsorption was studied to explore the interactions between Cd 2+ /tetracycline (TC), TiO 2 nanoparticles, and a zeolite (Zeo). SEM, FT-IR, and XPS were also used to reveal the interaction mechanism between organic–inorganic pollutants and TiO 2 on their stability and mobility in the environment. Compared to the single systems, the adsorption of Cd 2+ and TiO 2 in the Cd + TiO 2 composite system decreased by 3.43% and 9.90%, respectively; the TC and TiO 2 adsorption in the TC + TiO 2 composite system decreased by 14.39% and 45.47%, respectively. The antagonism between Cd 2+ and TiO 2 was due to Cd 2+ and TiO 2 competing for the electrostatic attraction (-OH) and hydrogen bonding sites (Si–O), and TC and TiO 2 competing for the hydrogen bonding sites (-OH and C = O) on Zeo. The presence of TiO 2 will increase the mobility of Cd 2+ and TC on a clay surface, and this effect is more significant for organic pollutants TC. Compared with Cd 2+ , TC has a more significant boosting impact on the TiO 2 mobility.
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高影响因子
FIBERS AND POLYMERS
·
2023
·Vol. 24
·期 8
·2743-2750
·
IF 2.5
Fu Sida,Li Haidong,Jiang Yue,Zhao Yan,Xu Zhiguang
In this study, superamphiphilic fabrics with under-oil superhydrophilic property have been prepared using trimesoyl chloride (TMC), tetrakis(hydroxymethyl) phosphonium chloride (THPC), and urea as coating materials. Owing to the unique under-oil superhydrophilicity, the coated fabric is able to absorb water droplets dispersed in oil, and oil stains on the coated fabric (dry) can be easily cleaned off just by rinsing with water (without the use of detergent), showing strong anti-oil-fouling ability. The coating is durable enough to withstand at least 50 cycles of home laundering, 1000 cycles of Martindale abrasions, as well as acid/base etching for 12 h without losing its under-oil superhydrophilic property. Meanwhile, the coated fabric exhibits excellent flame-retardant properties, with an oxygen limiting index (LOI) of 39.5% and a char length of 8.5 cm in vertical flame test. This multi-functional coating may find wide applications in functional textiles, water recovery, and flame-retardant field.
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高影响因子
IONICS
·
2020
·Vol. 26
·期 11
·5471-5480
·
IF 2.394
Pan Fusheng,Qiao Lina,Yuan Biao,Duan Cuijia,Wang Jianjie,Wu Wei,Lin Quanfan,Shi Yake,Chen Zan,Jiang Zhongyi
Poly(m-phenylene isophthalamide) (PMIA) membranes are promising heat-tolerant separator candidates of lithium-ion batteries (LIBs), while their wettability toward carbonate electrolyte and corresponding batteries performance are not desirable. Herein, PMIA membranes coated with ultrathin mussel-inspired polydopamine (PDA) layer were fabricated as separators in LIBs. The introduced amino, quinonyl, and catechol groups in PDA coating could enhance the wettability of the resultant PMIA-PDA separator toward electrolyte. The PMIA-PDA separator had excellent thermal stability, showing a thermal shrinkage of 5.2% at 200 °C. The contact angle of the thermal-treated PMIA-PDA separator could maintain at 26.1°, which decreased by 42.7% compared with the pristine PMIA separator. The PMIA-PDA separator also displayed a high ionic conductivity (0.86 mS cm −1 ) and a low interfacial electric resistance (62.4 Ω). Consequently, the assembled LiCoO 2 /PMIA-PDA/Li battery achieved good cyclic stability with the capacity retention of 84.3% (121.1 mAh g −1 ) after 100 cycles under 30 °C. More significantly, the relevant capacity retention remained at 89.0% (127.5 mAh g −1 ) under 60 °C, which implied a great potential of PMIA-PDA membranes as separators of high-safety LIBs.
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高影响因子
Journal of Superconductivity and Novel Magnetism
·
2024
·Vol. 37
·期 4
·667-675
·
IF 1.6
Wu Diandian,Liu Xiansong,Han Yuyan,Feng Shuangjiu,Lv Qingrong
A sample of Y 2.85 Ca 0.15 Sn 0.08 Ti 0.05 Mn 0.07 Fe 4.8 O 12 doped with four different ions was prepared using the solid method and a subsequent procedure. X-ray diffraction (XRD), energy-dispersive X-ray (EDX), and scanning electron microscope (SEM) were used to analyze the sample’s structural features, elemental distribution, and surface morphology. The study used the B-H magnetic characteristic analyzer and superconducting quantum interferometer magnetic performance measurement system to analyze the magnetic properties of Y 2.85 Ca 0.15 Sn 0.08 Ti 0.05 Mn 0.07 Fe 4.8 O 12 . The correlation becomes more surprising as the frequency increases, indicating a decrease in permeability when the magnetic field H reaches 200 A/m. Ion substitution leads to changes in magnetic crystal anisotropy, affecting permeability as the external magnetic field strength increases. We analyze the correlation between saturation magnetization and temperature in the 520–540 K range and explain the variation of saturation magnetization with temperature. The study shows that saturation magnetization decreases as temperature increases. This result suggests that saturation magnetization decreases as temperature increases. The increased super-exchange effect due to Ti and Mn occupying the (d) sites is much stronger than the reduced effect caused by Sn occupying the (a) sites. Therefore, the saturation magnetization of the Y 2.85 Ca 0.15 Sn 0.08 Ti 0.05 Mn 0.07 Fe 4.8 O 12 sample is higher than that of the undoped sample. The Curie temperature (Tc) of the Y 2.85 Ca 0.15 Sn 0.08 Ti 0.05 Mn 0.07 Fe 4.8 O 12 sample is lower than that of the undoped sample.
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高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2016
·Vol. 20
·期 8
·2331-2335
·
IF 2.327
Han Jin,Niu Yubin,Zhang Yan,Jiang Jian,Bao Shu-juan,Xu Maowen
Novel O3-type Na 0.8 Ni 0.6 Sb 0.4 O 2 is successfully fabricated via a solid-state method and further firstly used as cathode material for sodium-ion batteries (SIBs). The as-obtained material delivers a high capacity of ~107.3 mAh g −1 in the voltage range of 2–4.5 V with two discharge plateaus at 3.24 and 3.62 V, and exhibits a good capacity retention (98.5 mAh g −1 at the rate of 0.2 C after 100 cycles).
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2018
·Vol. 47
·期 9
·5509-5517
·
IF 1.566
Wang Wenzhao,Chen Xiaoxiao,Zeng Xiangbin,Wu Shaoxiong,Zeng Yang,Hu Yishuo,Xu Sue,Zhou Guangtong,Cui Hongxing
Recently, great efforts have been devoted to study of molybdenum disulfide (MoS 2 ), particularly monolayer MoS 2 semiconductor thin films, due to its excellent electrical and optical properties. Direct growth of continuous monolayer MoS 2 films by ambient-pressure chemical vapor deposition is reported herein. Optical microscopy, Raman spectroscopy, photoluminescence spectra (PL), atomic force microscopy, x-ray photoelectron spectroscopy (XPS), and high-resolution transmission electronic microscopy were used to characterize the electronic and structural properties of the films, demonstrating that the MoS 2 films grown on silicon dioxide/silicon (SiO 2 /Si) substrate with spatial size on micron scale were high quality, single crystal, continuous, and monolayer. Raman and PL mapping were performed to confirm the uniformity of the monolayer MoS 2 films. The morphological variation of the MoS 2 films after different reaction times was observed by optical microscopy and scanning electron microscopy, revealing the growth process and thus helping to understand that the growth mechanism during synthesis of continuous large-area films depends on the distribution of the reactive intermediate molybdenum oxide (MoO 3− x ) due to its lower saturation vapor density. Back-gated transistors based on MoS 2 films were fabricated, exhibiting current on/off ratio of ∼ 10 4 and subthreshold swing (SS) of 0.44 V dec −1 . This work contributes to synthesis of large-area continuous films, thus paving the way for future scaled-up fabrication of MoS 2 electronic devices.
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高影响因子
JOURNAL OF POROUS MATERIALS
·
2020
·Vol. 28
·期 1
·109-116
·
IF 2.183
Du Yue,Zhou Lina,Liu Zhenhui,Yang Lun
Highly ordered three-dimensional (3DOM) macroporous polyoxometalate (POM)-based zirconia hybrids with relatively high surface area and interconnected pore structure have been fabricated by colloidal crystal template method. Owing to the evenly distributed POM active sites, large-scaled 3D ordered macroporous structure, and high porosity of as-synthesized POM-based ZrO 2 composite, it exhibits excellent extractive-oxidative desulfurization activity and recyclability. 500 ppm of dibenzothiophene (DBT) in the model fuel can be removed within 2 h under mild conditions and no obvious loss of catalytic activity even after 20 times. The oxidative reaction of DBT follows pseudo-first-order kinetics, corresponded to an Arrhenius activation energy of 61.1 kJ/mol.
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高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2018
·Vol. 22
·期 12
·3947-3954
·
IF 2.509
Du Hai Yan,Liu Xiao Xiao,Ren Zhe,Liu Pan Pan
Poly(3,4-ethylenedioxythiophene) (PEDOT) has been electrochemically deposited on carbon paper (CP), stainless steel mesh (SSM), stainless steel (SS), and indium tin oxide (ITO) by unipolar-pulsed method. The surface morphology, micro-structure, and electrochemical capacitance for PEDOT/substrates were characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and electrochemical techniques. The electrochemical capacity measurements of the PEDOT/CP electrode in 0.5 M H 2 SO 4 shows high mass-specific capacitance of 126.24 F/g at a 1 mA/cm 2 , which is consistent with the specific capacitance of 126.75 F/g at 5 mV/s. Compared with PEDOT/SSM, PEDOT/SS, and PEDOT/ITO, PEDOT/CP electrode shows better capacitive performance, which presents good rate performance of 76.78% at 5 mA/cm 2 and charge-discharge stability with the capacitance retention rate of 80.57% for 5000 cycles. SEM result shows PEDOT maintained the spindle-like structure along with the threads of each carbon fiber, which are densely packed and randomly oriented forming the porous structure.
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高影响因子
MICROCHIMICA ACTA
·
2014
·Vol. 181
·期 5
·589-595
·
IF 3.719
Tian Li,Zhang Boxun,Sun Ding,Chen Ruizhan,Wang Binbin,Li Tianjiao
We have fabricated, in a single step, carbon ceramic electrodes modified with a poly(acridine orange) film containing reduced graphene oxide. They display electrocatalytic activity to ascorbic acid (AA) and uric acid (UA) at pH 4.5. The anodic peak potentials of AA and UA are separated by 276 mV so that they can be well resolved in cyclic voltammetry. UA and AA were simultaneously determined in a mixture at working potentials of 170 and 400 mV, respectively. Under optimized conditions, the calibration curves for AA and UA cover the 0.8–5,000 μM and 0.6–900 μM concentration range, respectively, while detection limits are 0.3 μM and 0.2 μM. The electrode was applied to determine AA and UA in urine samples.
DPV curves of RGO–PAO/CCE in the phosphate buffer solution (pH 4.5) containing 5.0 × 10 −5 mol L −1 AA with different concentration of UA (a → f: 0, 1, 3, 5, 7, 9 × 10 −6 mol L −1 )
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高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2017
·Vol. 312
·期 2
·187-198
·
IF 1.282
Zheng Zhiyang,Wang Youqun,Zhao Wuwei,Xiong Guoxuan,Cao Xiaohong,Dai Ying,Le Zhanggao,Yu Shenglong,Zhang Zhibin,Liu Yunhai
Hydrothermal carbon spheres (HCSs) functionalized with 4-aminoacetophenone oxime group (HCSs-oxime) were prepared by a grafting method and explored to adsorption of uranyl ions from aqueous solution. The results of FT-IR, elemental analysis and zeta potential indicate a successfully modification with oxime group. The adsorbent shows an excellent adsorption capacity (Langmuir, q
m
= 588.2 mg g −1 ) and quick adsorption kinetic (equilibrium time of approximately 60 min) at optimal pH of 6.0. The adsorptive selectivity for uranyl ions has been also great improved in present with various co-existing ions. Overall, HCSs-oxime is a potentially promising material for selective removal of uranium in the contaminated solution.
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高影响因子
MICROCHIMICA ACTA
·
2019
·Vol. 186
·期 12
·1-7
·
IF 5.479
Zhou Jianfeng,Sun Guohan,Pan Jianbin,Pan Yufang,Wang Sumei,Zhai Haiyun
An electrochemical sensor is described for the simultaneous determination of Cd 2+ , Cu 2+ , Hg 2+ and Pb 2+ using square wave anodic stripping voltammetry. A glassy carbon electrode (GCE) was modified with N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride homopolymer ionic liquid doped into magnesium(II)-aluminium(III) layered double hydroxides. The morphology investigations suggest that the material possesses typical interconnected laminated micropores and a mesoporous architecture dispersed on the surface of the GCE. This accelerates mass diffusion and facilitates the deposition-stripping process of metal ions. Key operational parameters including pH, deposition potential, deposition time and the quantity of nanomaterial on the GCE were optimized. The following figures of merit for the ions Cd 2+ , Cu 2+ , Hg 2+ and Pb 2+ are obtained under optimum conditions: (a) detection limits of 250, 25, 250 and 16 ng L −1 ; (b) linear ranges from 0.5 to 20, 0.05 to 20, 0.5 to 20 and 0.05 to 20 μg L −1 , and (c) peak potentials of −768, +42, +302 and − 541 mV (vs. Ag/AgCl). The modified GCE was successfully applied to the determination of these ions in spiked black tea extract and in dried tangerine peel .
Schematic representation of novel electrochemical sensor based on a glassy carbon electrode modified with IL-Mg/Al-LDHs composites for the simultaneous detection of Pb 2+ , Cd 2+ , Cu 2+ and Hg 2+ .
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高影响因子
危险品化学品经营许可证（带存储）