JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2023
·Vol. 170
·期 9
·096508
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IF 3.9
Xingxing Liao,Zhaode Mu,Panke He,Yonghua Yuan,Jiaxu Zhou,Lijuan Bai
In this work, a new non-enzymatic sensor for the determination of glucose was constructed using Fe-doped NiMoO4 nanoparticles (NiFeMoO4). Hydrothermal and calcination techniques were successfully used to synthesis different proportion nanoparticles of Ni1−xFexMoO4 (x = 0, 0.01, 0.03, 0.05). A set of electrochemical measurements demonstrated that all of the Ni1−xFexMoO4 have electrocatalytic properties to glucose. Especially, Ni0.99Fe0.01MoO4 (x = 0.01) displayed the most excellent amperometric response to glucose in the range of 0.01∼13 mM with a limit of detection (LOD) of 0.29 μM (S/N = 3). This amperometric sensor also showed satisfactory anti-interference performance and stability. More significantly, the sensor's applicability was tested using a glucose assay in actual serum samples with acceptable results.
研究领域:
分析化学
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生物医学工程
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 30
·期 15
·14573-14579
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IF 2.195
Teng Zhen,Zeng Sifan,Feng Wanlin,Zhu Lini,Tan Yongqiang,Han Xiaochun,Chen Chen,Zhang Haibin
Fe-Fe 3 C@C composites are successfully synthesized via a facile pyrolysis process. Experimental results indicate that Fe-Fe 3 C nanoparticles are closely parceled among amorphous carbon and exhibit a core–shell structure. The obtained materials display excellent microwave absorption performance with an optimal reflection loss of − 35.6 dB at 17.2 GHz, and an effective absorbing bandwidth of 4 GHz (from 12.4 to 16.4 GHz) with the coating thickness of 2 mm. The magnetic loss derived from Fe core and dielectric loss on carbon materials as well as a good impedance matching are believed to play decisive roles for this favorable microwave absorbing properties. The composites are considered to be good candidates for microwave absorption applications.
研究领域:
材料科学
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电磁学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Rui Cai,Ping-an Yang,Haibo Ruan,Xin Huang,Zhihao Zhou,Qiao Chen,Yuxin Zhang,Xinglong Gong,Yingang Gui,Rui Li
How to prepare materials according to the target properties has been a hot research topic. In this paper, the target electromagnetic parameters are obtained according to the performance requirements, and the nanoflower rod-like, low-density mulberry-like and high-density mulberry-like one-dimensional (1D) core–shell structured Fe@Ni ( x ) nanowires (NWs) are prepared by liquid-phase reduction method. The effective absorption bandwidth (EAB) of sample Fe@Ni (40) in the low-frequency (2–8 GHz) is up to 1.89 GHz (3.1 mm). Sample Fe@Ni (60) is able to reach a maximum EAB of 3.18 GHz at a thickness of 0.9 mm. Concisely, the sample has the ability to absorb microwaves in low frequency bands and ultra-thin thicknesses. The reason can be attributed to the strong magnetic coupling brought by the bimetallic composition to strengthen the resonance level and the excellent 1D core–shell structure to enhance the efficiency of polarization loss. In conclusion, Fe@Ni ( x ) provides a technological route for the preparation of low-frequency and ultra-thin-thickness absorbers.
研究领域:
材料科学
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电磁学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2019
·
IF 4.914
Hao Wang,Xiaohao Liu,Guangyue Xu,Ziwei Guo,Ying Zhang
ABSTRACT Owing to Fe being the most abundant and least expensive transition metal on the earth, the utilization of Fe-based catalysts for catalytic hydrogenation has attracted worldwide attention. In this work, a series of N-doped C supported Fe catalysts (Fe-N-C) were prepared by co-pyrolysis of cellulose and ferric chloride under ammonia atmosphere. Characterization methods such as elemental analysis, atomic absorption spectroscopy, nitrogen adsorption-desorption isotherms, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were carried out to explore the physicochemical properties of the catalysts. Using hydrogenation of nitrobenzene as a model reaction, the catalysts prepared at different pyrolysis temperatures displayed different activities. Fe-N-C-700 exhibited the best activity among these catalysts, with the yield of aniline being up to 98.0% under 5 MPa H 2 at 120 °C after 12 h. Combined with the results of catalyst characterization and comparative tests, the transformation of Fe species and the generation of N-doped C, especially graphitized N-doped C, in the catalyst may be the main factors affecting the activity. A kinetic study was carried out and the apparent activation energy was obtained as 31.53 kJ/mol. The stability of the catalyst was also tested and no significant decrease in the activity was observed after 5 runs.
研究领域:
化学工程
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材料科学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Qihui Wang,Xingyu Yang,Changwen Li,Chenyu Zhao,Yujie Huang,Shuqi Qiu,Yaru Qin,Chenglong Shi
The titanium-based lithium ion sieve adsorbent H 2 TiO 3 (HTO), known for its structural stability and high adsorption capacity, emerges as a highly promising material. Nonetheless, its precursor, the Li 2 TiO 3 powder (LTO), synthesized via the high-temperature solid-phase method, tends to agglomerate and poses challenges in separation. This agglomeration compromises the adsorption sites and, consequently, its adsorption capacity. To counter this, we employed a strategy of doping LTO with magnetic Fe 3 O 4 nanoparticles as a Fe source, aiming to mitigate the agglomeration issue. Subsequently, Fe-doped H 2 TiO 3 (HFTO) was obtained by acid washing and used to adsorb lithium ions from an aqueous solution. Experimental results revealed that HFTO's equilibrium adsorption capacity for lithium in LiCl solution peaked at 34.27 mg/g. Moreover, even after five cycles of adsorption–desorption, HFTO maintained an adsorption capacity exceeding 32.00 mg/g. Investigations into HFTO's adsorption mechanism, utilizing Raman spectroscopy, FT-IR, and XPS , uncovered that the adsorption of Li + by HFTO occurs through the dissociation of O–H bonds and the subsequent formation of O-Li bonds.
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
Materials Today Bio
·
2025
·
IF 10.2
Hongjin Xue,Yunqian Li,Xinyu Ma,Qi Zhang,Junkai Zhu,Xiaoli Ni,Jianfeng Qiu,Zhengjun Li,Zhen Mu
Psoriasis is a chronic skin condition with significant unmet medical needs, characterized by high levels of reactive oxygen species (ROS) and accompanying oxidative stress. In this study, we developed a novel single-atom iron nanozyme (Fe-N 3 ), designed to mimic natural antioxidant enzymes, for the effective treatment of psoriasis. By optimizing the local coordination environment of Fe atoms, Fe-N 3 demonstrated superior superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APx), and glutathione peroxidase (GPx)-like activities compared to Fe-N 4 . These properties enable efficient ROS scavenging and oxidative stress alleviation. Theoretical analyses revealed that Fe-N 3 possesses lower energy barriers for ROS decomposition, explaining its superior catalytic performance. Furthermore, in vitro and in vivo experiments have demonstrated that Fe-N 3 nanozyme exhibited remarkable therapeutic effects with extremely low cytotoxicity, effectively inhibiting pathological epidermal proliferation, downregulating key inflammatory factors, and reducing the expression levels of psoriasis-associated pathway proteins. This work highlights the promise of single-atom nanozymes in the curing of inflammatory skin diseases, advancing the transformative role of nanotechnology in biomedicine.
研究领域:
生物医学
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纳米技术
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皮肤病学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS
·
2024
·
IF 2
Qian Liu,Panpan Xu,Qianqian Zhang,Guangming Han,Ling Li,Limin Zhou
A series of novel MIL-53(Fe)/CoWO 4 composites were synthesized by combining MIL-53(Fe) and CoWO 4 nanoparticles via solvothermal method. The structural characterizations showed that CoWO 4 nanoparticles were uniformly distributed on the surface of hexagonal bipyramid MIL-53(Fe). Combining XPS and Mott-Schottky plots, a Z-scheme heterojunction was formed between MIL-53(Fe) and CoWO 4 , resulting in a significant improvement in the electron-hole pair separation efficiency. UV–vis diffused reflectance spectra indicated that the optical arrange of MIL-53(Fe)/CoWO 4 composites were expanded to visible light. The photocatalytic degradation experiments under visible light irradiation showed that MIL/CWO-60 synergistically with PMS degraded 90.5 % of TC-HCl within 50 min. The XRD spectra of used and unused composites were identical, indicating good stability in four consecutive cycles. Electron paramagnetic resonance (EPR) and free radicals trapping experiment revealed that active species included O 2− , SO 4 − , h + , OH and 1 O 2 , and mechanism of the synergistic degradation of TC-HCl by MIL-53(Fe)/CoWO 4 composites and PMS was proposed.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2024
·Vol. 25
·期 18
·9855
·
IF 4.9
Yiting Luo,Rongkui Su
Tetracycline’s accumulation in the environment poses threats to human health and the ecological balance, necessitating efficient and rapid removal methods. Novel porous metal–organic framework (MOF) materials have garnered significant attention in academia due to their distinctive characteristics. This paper focuses on studying the adsorption and removal performance of amino-modified MIL-101(Fe) materials towards tetracycline, along with their adsorption mechanisms. The main research objectives and conclusions are as follows: (1) NH2-MIL-101(Fe) MOF materials were successfully synthesized via the solvothermal method, confirmed through various characterization techniques including XRD, FT-IR, SEM, EDS, XPS, BET, and TGA. (2) NH2-MIL-101(Fe) exhibited a 40% enhancement in tetracycline adsorption performance compared to MIL-101(Fe), primarily through chemical adsorption following pseudo-second-order kinetics. The adsorption process conformed well to Freundlich isotherm models, indicating multilayer and heterogeneous adsorption characteristics. Thermodynamic analysis revealed the adsorption process as a spontaneous endothermic reaction. (3) An increased adsorbent dosage and temperature correspondingly improved NH2-MIL-101(Fe)’s adsorption efficiency, with optimal performance observed under neutral pH conditions. These findings provide new strategies for the effective removal of tetracycline from the environment, thus holding significant implications for environmental protection.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
·
2023
·
IF 4.6
Yuping Gai,Junbo Hu,Wei Deng,Wenshuo Xie,Xiang Li,Jingjing Zhang,Dewu Long,Shanlin Qiao,Fei Jiang
Summary. Electrochemical water decomposition as a crucial approach for the gradual growth of renewable energy has attracted extensive attention. Metal-organic frameworks (MOFs) which benefit from ultra-high specific surface area, controllable nanostructures, and excellent porosity have been widely used as high activity catalyst for the decomposition of water by electrochemical means. Herein, the composition and morphology of metal–organic framework nanoclusters with bimetallic Co/Fe-incorporated PTA/FDA nanoclusters is designed for efficient and durable OER electrocatalysts, including CoFe-BTC/PTA, CoFe-BTC/FDA, and CoFe-PTA/FDA. The crystal structure of MOF materials is composed of alternating organic hydrocarbon BTC, PTA, or FDA and inorganic metal oxide layer. Co and Fe interact as central atoms, joining BTC, PTA, or FDA ligands to form a highly symmetric MOF structure. The electronic structures and active sites of various metals are different, and the insertion of iron atoms plays a certain role in the regulation of their electronic structures. CoFe-PTA/FDA shows significant OER overpotential (1.525 V vs. RHE) reached 10 mA cm-2, with 62.85 mV dec-1 for Tafel slope and pretty conspicuous stability (72 hours of continuous testing). The DFT calculation results show coordination unsaturated metal atom is the primary active center of these electrocatalytic reaction, and the coupling effect caused by adding Fe is the key to adjust the electrocatalytic activity.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Hanmin Zhong,Xiaoying Ye,Xueting Xie,Xianliang Song,Shucan Luo,Wenbei Situ
With the large surface area and excellent adsorption properties of MIL-101(Fe), MIL-101(Fe)/TiO 2 photocatalysts were prepared by chemical method and physical method in this research, respectively. The photocatalysts' performance on ethylene degradation was evaluated, and the photocatalyst prepared using the chemical method (CH-MT) performed better than that by physical method (PHY-MT) under the same conditions. Moreover, the photocatalysts' molecular structure was characterized by XRD, FTIR, UV–Vis DRS, BET, and XPS. The redox process of Ti 4+ /Ti 3+ of TiO 2 and Fe 3+ /Fe 2+ effectively prevents the complexation of e − -h + pairs. In this cycle, the oxidatively active substance (∙O 2 - ) is provided, which plays a key role in the ethylene degradation of MIL-101(Fe)/TiO 2 photocatalysts. Furthermore, in the BET analysis, CH-MT's specific surface area and pore volume were smaller than PHY-MT's, which improved ethylene absorption, enhanced the transfer of photogenerated carriers, and raised the photocatalytic reaction efficiency of CH-MT. The differences between MIL-101(Fe)/TiO 2 photocatalysts prepared by various methods were investigated and discussed, providing a new approach for MOF materials' application in agricultural areas.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-14
·
IF 15.7
Song Wanqing,Wen Zhenzhuang,Wang Xin,Qian Kunyan,Zhang Tao,Wang Haozhi,Ding Jia,Hu Wenbin
Sodium | |sulfur batteries hold great promise for grid-scale energy storage, yet their performance is hindered by the shuttling and sluggish redox of sulfur species. Herein, we report a strategic design of sulfur hosts modified with coordinatively unsaturated iron single-atom (Fe‒N x ) for sodium | |sulfur batteries. Utilizing theoretical calculations, geometric descriptor γ ( l Na‒S / l Fe‒N ) and electronic descriptor φ ( e g / t 2g ) simultaneously correlated with the unsaturation degree of Fe‒N x site are proposed. A negative correlation between γ and the adsorption strength of sodium polysulfides, along with a positive correlation between φ and the decomposition capability of Na 2 S are established. The Fe‒N 1 sites, with the minimum γ and maximum φ values, are identified as the optimal functional species for optimizing polysulfides behaviors. Sodium | |sulfur batteries utilizing Fe‒N 1 /S positive electrodes deliver improved sulfur utilization (81.4% at 167.5 mA g ‒1 ), sustained rate performance (1003.0 mAh g ‒1 at 1675 mA g ‒1 ), and stable cycling (83.5% retention over 450 cycles at 3350 mA g ‒1 ). Moreover, Fe‒N 1 /S positive electrodes enable sodium | |sulfur pouch cells to deliver a sulfur utilization of 77.4% (1296.9 mAh g ‒1 ) at 0.1 A g ‒1 . Our work offers a strategy for designing high-activity, fast redox sulfur positive electrodes and validates the practical potential of sodium | |sulfur batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Rutong Song,Jun Yao,Mei Yang,Zhongbin Ye
Metal–organic frameworks (MOFs), especially Fe-MOFs, have shown prospective application in eliminating organic dyes from wastewater due to their well-developed pores, water stability, easy preparation, and economy. Herein, we synthesized four types of Fe-MOFs (such as MIL-88A, MIL-88B, MIL-100, and MIL-101) using the hydrothermal method. The products were analyzed with several methods. By comparing the adsorption effect of those four types of Fe-MOFs on three kinds of dyes, it has been shown that MIL-100 owns the best adsorption efficiency on cationic organic dyes methylene blue (MB) and Rhodamine B (RhB) in 180 min, while all MOFs have slight removal capacity on methyl orange (MO). MIL-100, as an adsorbent, was studied under various research conditions, and the maximum removal efficiencies to MB, RhB, and MO were found to be up to 97.36%, 88.75%, and 13.00%, respectively. Furthermore, cationic dye MB’s removal by MIL-100 was fitted with a pseudo-second-order model and Langmuir isotherm model (Qm = 411.041 mg/g) by adsorption kinetics and isotherms research, and MIL-100 could rapidly and selectively divide MB from a binary complex aqueous solution of MB and MO. The as-fabricated MIL-100 also exhibited excellent recyclability after four adsorption–desorption recycles and can be treated as a potential substance with high removal efficiency of cationic organic dye-containing industrial effluents.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
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