JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Ma Junjie,Li Wei,Yang Deyi,Liu Zheng,Cao Yuyuan,Wang Shaocong,Han Guo-Cheng,Chen Qizhi
N-RGO/Na 3 V 2 (PO 4 ) 3 dual-modified Na 2 Fe 0.6 Mn 0.4 PO 4 F composites were prepared by sol–gel method combined with high-temperature calcination at 625 °C. Electrochemical tests show that the initial discharge specific capacity of N-RGO/Na 3 V 2 (PO 4 ) 3 -modified Na 2 Fe 0.6 Mn 0.4 PO 4 F composites is 149.27 mAh·g −1 at a current density of 0.05 C, and the discharge specific capacity can be maintained at approximately 101.89 mAh·g −1 after 100 cycles. This accounts for 68.26% of its initial discharge specific capacity. Rate performance tests showed that after cycling the current density back to 0.2 C, it was still able to recover to a discharge specific capacity close to 119 mAh·g −1 . At the same time, the interfacial properties of the N-RGO/Na 3 V 2 (PO 4 ) 3 dual-modified Na 2 Fe 0.6 Mn 0.4 PO 4 F composites were studied, and it was found that the capacity attenuation was due to irreversible structural changes such as agglomerated block cracking and structural collapse during multiple cycles, as well as the gradual thickening of the SEI film with the increase in cycle times. This study aims to apply N-RGO/Na 3 V 2 (PO 4 ) 3 dual-modified Na 2 Fe 0.6 Mn 0.4 PO 4 F composites to cathode materials for sodium-ion batteries, providing a theoretical basis for the development of fluorinated poly-anion compounds.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Dongju Liu,Kunlan Diao,Daohai Zhang,Yupeng Hu,Zhi Lei,Teng Zhou,Kaixiang Zou,Shuhao Qin
With the popularity of wireless communication technology, the problem of electromagnetic radiation and interference is highlighted, and the development of efficient electromagnetic shielding materials has become a research priority. In this study, firstly, polyvinyl alcohol/sodium alginate (PVA/SA) hydrogels were prepared by physical cross-linking method, and further, iron-based metal-organic frameworks (Fe-MOFs) were prepared by solvothermal synthesis method, and with reduced graphene oxide (RGO) as a conductive filler, and γ-aminopropyltriethoxysilane (KH550) as a cross-linking agent, were prepared by chemical cross-linking method. Modified polyvinyl alcohol/sodium alginate/iron based metal organic framework/reduced graphene oxide (PVA/SA/Fe-MOF/RGO-KH550) composite hydrogel. The results show that the composite hydrogel has a compressive stress of 20.13 MPa, a compressive strain of 83.28 %, and an electromagnetic shielding efficiency of 39.98 dB at a thickness of 3 mm, which reaches the mid-range and high-end level, and it can be applied to industrial control, small and medium-sized data centres, automotive electronics, and general medical devices with medium-high requirements. The excellent performance of the hydrogel comes from the conductive properties and interfacial polarisation effect of RGO, the dielectric loss of Fe-MOF, which work in synergy, and KH550 optimises the interfacial bonding between the filler and the substrate to form a denser crosslinked structure, which strengthens the mechanical properties and electromagnetic shielding effect. The hydrogel preparation process is simple and low-cost, which provides a reference for the design of high-performance electromagnetic shieldingmaterials and an effective solution to the problem of electromagnetic interference.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Yiyang Liu,Mengyang Lu,Hao Fang,Hanmin Zhang
Although forward osmosis (FO) offers the advantage of high desalination capacity without additional driving forces, it faces two challenges: the trade-off effect and membrane fouling. Embedding 2D nanosheets into the membrane effectively enhances its properties by modulating the interlayer spacing and imparting catalytic functionality, providing a key strategy to address the outlined challenges. In this work, 2D nanomaterials with photocatalytic properties, specifically carbon nitride (gCN), were intercalated into reduced graphene oxide (rGO) laminates to prepare rGO@gCN composite FO membranes. Atomically 2D gCN nanosheets acted as nanospacers, increasing the interlayer spacing between rGO nanosheets and enhancing the membrane's surface hydrophilicity, thereby providing a direct water transport channel and reducing resistance to water transport. The rGO@gCN membrane exhibited optimal performance, with a water flux of 48.4 LMH (an 11-fold increase compared to the pristine rGO membrane), without sacrificing the rejection of divalent ions and organic dyes, thereby overcoming the constraints of the trade-off effect. Additionally, the rGO@gCN membrane demonstrated self-cleaning capabilities for methylene blue (MB) fouling on the surface during both static and dynamic photocatalytic performance tests. The rGO@gCN membrane maintained 70 % of the initial water flux even after 4 h FO filtration under visible light, and the MB-contaminated membrane could be self-cleaning to restore its original appearance and water permeability. Overall, this work provides a multifaceted strategy and valuable design insights for achieving high FO performance and enhanced resistance to membrane fouling in various potential applications of 2D nanomaterial-based FO membranes.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xiali Guan,Gang Zhou,Yubo Fan
Melatonin (MT) is a hormone regulating the sleep-wake cycle and serves as a potential biomarker for various physiological and pathological conditions. Traditional MT detection methods, such as HPLC and MS, face challenges including complex processing, low sensitivity, and the inability to provide real-time monitoring, limiting their clinical applicability. Electrochemical sensors offer advantages like simplicity, high sensitivity, and real-time detection; however, issues such as insufficient selectivity, poor stability, and limited reproducibility in complex biological matrices persist. To address these challenges, we developed an Ab-MEL/AR/ITO electrochemical sensor by integrating AgNPs@RGO (AR) composites, synthesized using a dopamine in situ reduction method, with the MEL-1A-R (B-10) antibody (Ab-MEL) as a selective molecular recognition element for MT detection. The sensor exhibited a linear response to MT concentrations ranging from 0.01 to 1000 μM, with an exceptionally low limit of detection (LOD) of 0.0016 μM. It demonstrated excellent selectivity, maintaining performance in the presence of interferents like NaCl, glucose, and dopamine, and exhibited high reproducibility and long-term stability, with only a 5.68 % decrease in response after 28 days. The sensor achieved recovery rates of 98.10 % to 106.30 % in synthetic urine, human serum, and commercial MT capsules, underscoring its robustness and precision. By addressing the limitations of conventional methods, this Ab-MEL/AR/ITO sensor provides a highly sensitive, selective, and stable platform for MT detection, offering significant potential for clinical diagnostics and biomedical research applications.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2020
·Vol. 31
·期 5
·1164-1171
·
IF 2.578
Mengmeng Song,Meng Zhou,Hengfeng Hu,Heqing Fu
First, attapulgite-Fe 3 O 4 magnetic filler (ATP-Fe 3 O 4 ) was prepared by using a chemical precipitation method. Subsequently, graphite oxide (GO) was prepared through Hummer method, and then reduced GO (RGO) was prepared through GO reduced by chitosan (CS). Finally, a series of WPU-RGO/ATP-Fe 3 O 4 /CS composites were prepared by introduced RGO/ATP-Fe 3 O 4 /CS to waterborne polyurethane. The structure and properties were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR), X-ray diffraction (XRD), vibrating sample magnetometry (VSM), thermogravimetric analysis TGA, conductivity test, and tensile test. The experimental results indicated that thermal stability and tensile strength of nanocomposites were improved with the increase of the content of RGO/ATP-Fe 3 O 4 /CS. Meanwhile, with the increase of the RGO/ATP-Fe 3 O 4 /CS content, the electrical and magnetic properties of WPU-RGO/ATP-Fe 3 O 4 /CS composites were improved. When the content of RGO/ATP-Fe 3 O 4 /CS was 8 wt%, the electrical conductivity and the saturation magnetic strength of WPU-RGO/ATP-Fe 3 O 4 /CS composites were 3.1 × 10 −7 S·cm −1 and 1.38 emu/g, respectively. WPU-RGO/ATP-Fe 3 O 4 /CS composites have excellent electrical and magnetic properties.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yi-Ran Li,Ying-Ming Li,Bing-Bing Chen,Wen-Juan Hu,De-Yi Wang
Ideal electromagnetic absorbing material should not only be light weight, broadband and high efficient, but also easily prepared and flame-retarding to satisfy the challenges from rapid development of electronic information technology. In present paper, a new type of electromagnetic absorbent (Fe-MOF-rGO) was prepared via a simple one-pot method to grow metal-organic framework (Fe-MOF) on the surface of in-situ reduced graphene oxide (rGO) by solvothermal method. When 25 wt% of Fe-MOF-rGO was incorporated into the paraffin matrix, the minimum reflection loss value (RL) reached to −43.6 dB at the thickness of 2 mm, and the effective absorption bandwidth (EAB) exceeded 5.0 GHz, which satisfied the goals of high efficiency, light weight and broadband. According the medium permittivity loss, magnetization loss and excellent resistance matching results, it was concluded that the conduction loss (excellent conductivity of rGO), magnetic loss (magnetic resonance of Fe nanoparticles) and interface polarization loss (heterostructure of two-dimensional rGO and three-dimensional Fe-MOF) of Fe-MOF-rGO jointly determined the electromagnetic absorbing performance. Moreover, the combustible behavior of Fe-MOF-rGO was also investigated. When 10 wt% of Fe-MOF-rGO was incorporated into the epoxy resin (EP), the heat release capacity (HRC) and peak heat release rate (PHRR) decreased by 42.1% and 42.3% respectively, which showed an excellent flame-retarding property.
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高影响因子
MATERIALS RESEARCH BULLETIN
·
2020
·
IF 4.019
Waqar Uddin,Sajid ur Rehman,Muhammad Adnan Aslam,Shafiq ur Rehman,Mingzai Wu,Manzhou Zhu
Impedance matching has a key role in strong microwave absorption. To achieve the perfect impedance matching and enhanced interface dielectric relaxation, nickel-doped rGO@MoS 2 composite has been prepared. The complex permittivity and complex permeability of rGO@Ni-MoS 2 show significant improvement by the combination of the high magnetocrystalline anisotropy of Ni metal with highly conductive reduced graphene oxide, leading to remarkable microwave absorption. The prepared rGO@Ni-MoS 2 achieved maximum microwave absorption of −40 dB at 2 mm thickness. The control samples of MoS 2 , Ni-MoS 2 and rGO@MoS 2 indicate that micro-cluster of MoS 2 and Ni doping is indeed helpful to improve the performance of rGO@Ni-MoS 2 . The study provides a pathway for practical applications of microwave absorption materials in terms of impedance matching.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 15
·e55221
·
IF 2.7
You Zhang,Wenzhong Ma,Jing Zhong,Ruiqiao Jiang,Zhou Zhou,Sirui Lu,Shuo Wang
As an efficient method to realize photoinduced shape memory, photothermal filler has the characteristics of economy and convenience. However, the aggregation of the photothermal filler in the matrix material will reduce the material's shape memory and mechanical properties. In this work, the photothermal filler of reduced graphene oxide (rGO)-titanium dioxide (TiO 2 ) was prepared by the solvothermal method and then introduced into the polycaprolactone (PCL) matrices to construct a photoresponsive actuator. Because of TiO 2 is uniformly loaded on the rGO surface, rGO-TiO 2 disperses well in the composites. When the GO:TiO 2 ratio of photothermal filler is 1:1, the mechanical properties of PCL-GT-3 are the best, and the tensile strength and elongation at break are 31.8 MPa and 239.5%, respectively, and the crosslinking material under near-infrared light has a good photothermal effect. Due to the induced difference between the in-plane stress of the surface and the volume layer, the shape transformation can be controlled by very low energy (808 nm, 700 mW near-infrared laser). The scheme of controlling the properties of the photoinduced shape memory material by changing only the filler type is conducive to commercial application.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2018
·
IF 6.434
Hailong Wang,Quanqin Hu,Yuan Meng,Zier Jin,Zilin Fang,Qinrui Fu,Wenhua Gao,Liang Xu,Yibing Song,Fushen Lu
Reduced graphite oxide (rGO) was incorporated into a metal organic framework (MOF) MIL-101(Cr) for the modification of carbon paste electrode. Taking advantages of the large surface area of MOF and the electrical conductivity of rGO, the resulted electrodes exhibited high sensitivity and reliability in the simultaneous electrochemical identification and quantification of catechol (CC) and hydroquinone (HQ). Specifically, in the mixture solution of catechol and hydroquinone (constant concentration of an analyte), the linear response ranges for catechol and hydroquinone were 10–1400 μM and 4–1000 μM, and detection limits were 4 μM and 0.66 μM (S/N = 3) for individual catechol and hydroquinone, respectively. Therefore, the relatively easy fabrication of modified CPE and its fascinating reliability towards HQ and CC detection may simulate more research interest in the applications of MIL-101(Cr)-rGO composites for electrochemical sensors.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Bin Tan,Shenghua Han,Wenbin Luo,Zisheng Chao,Jincheng Fan,Mingyu Wang
MoS 2 as cathode materials of aluminum ion batteries can significantly improve the specific discharge capacity in the initial cycles. However, it electrical conductivity is poor and has strong interactions with higher charge density of Al 3+ cations. So MoS 2 cathode material suffers from rapid specific capacity decaying, which prevents the further development for aluminum ion batteries. Herein, a new phase engineering strategy is demonstrated for making MoS 2 -RGO (Reduced graphene oxide) composites for boosting the performance of aluminum ion batteries. Because the structure of MoS 2 is analogous to graphene, it can be used as a novel substrate for the growth of MoS 2 , which can increase the contact area of graphene and MoS 2 with forming perfect interlayer-overlapped composites. The Al/MoS 2 -RGO battery has a specific discharge capacity of 278.1 mAh/g in the initial cycles, and still maintains 150.2 mAh/g after 100 cycles.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Jie Hu,Wangwang Guan,Xueqing Xiong,Yong Chen,Haizhu Long
A carbon nanomaterials-modified MOF-derived Co 3 O 4 p–p heterojunction was successfully constructed using a solution-combination-calcination method. The morphological and structural characteristics and their gas sensing performances were comprehensively investigated. Particularly, the synergistic effect between different carbon nanomaterials and Co 3 O 4 mesoporous structures was carefully studied. The gas sensing results revealed that the sensor based on the CNT-rGO-Co 3 O 4 nanocomposites exhibited better gas sensing properties toward the ethanol gas, including higher response, admirable antihumidity, and shorter response–recovery time than the other Co 3 O 4 samples. The gas sensitivity of CNT-rGO-Co 3 O 4 nanocomposites reached to be as high as 127.1, which was 5.8 times higher than that of a pure Co 3 O 4 gas sensor when exposed to 100 ppm ethanol. The enhanced gas sensing performance of the sensor fabricated by the CNT-rGO-Co 3 O 4 nanocomposites could be attributed to the promising synergistic effect between carbon nanomaterials and Co 3 O 4 nanobox, implying that the heterojunction structure and coupling effect would dramatically optimize the gas sensing reaction process, resulting in improved gas sensing performance.
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高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Huan Luo,Heng Li,Qingmei Ge,Hang Cong,Zhu Tao,Mao Liu
A novel chiral sensor was developed to produce the distinguishing response to the enantiomers of tyrosine (Tyr), with high sensitivity and selectivity. The electrochemical sensor was modified by the inorganic-organic nanohybrid material with the functionalization of reduced graphene oxide (rGO) to be the amplifier and a chiral hetero-multifarene[3,2,1] (CHMF[3,2,1]) as the chiral receptor. The as-prepared rGO-CHMF was characterized by transmission electron microscopy (TEM), atomic force microscope (AFM), infrared spectroscopy (IR), thermogravimetric analysis (TGA), Raman spectroscopy and electrochemical methods. It was observed that the composites exhibited different binding ability for Tyr enantiomers. The proposed sensor presented significant difference with peak potential separation value (ΔE p = 70 mV) and the ratio of peak current ( I L-Tyr / I D-Tyr = 1.58) for Tyr enantiomers by differential pulse voltammetry. In addition, the peak currents increased linearly with the concentration of Tyr enantiomers in the concentration range 0.1–10 μM with detection limits of 78 nM and 83 nM for l -Tyr and d -Tyr (S/N = 3), respectively. It also exhibited the ability to determine the percentage of one Tyr enantiomer in the racemic mixture. Moreover, the selectivity, reproducibility, and stability of the chiral sensor were investigated to give satisfactory results. The above discoveries offered an alternative technology for chiral recognition with electrochemical response to actualize a real-time and quantitative determination.
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高影响因子
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