ADVANCED ENGINEERING MATERIALS
·
2025
·
IF 3.3
You Li,Zhichao Gan,Yunshu Zhang,Yuxin Zhai,Lulu Zhan,Weiming Chen
Graphene oxide (GO) has become an important reinforcing phase in metal matrix composites due to its excellent mechanical and thermal properties. However, existing studies have predominantly focused on traditional alloys or high-entropy alloys, while significant gaps remain in the investigation of synergistic strengthening mechanisms of GO and microforming behavior in medium-entropy alloys. In this article, FeCoNi/GO nanocomposites are fabricated through composite pulsed electrodeposition. GO can be efficiently incorporated into the FeCoNi medium-entropy alloy matrix, which not only markedly refines the matrix grains, effectively suppressing the excessive growth of grains during high-temperature stretching and thereby enhancing the plasticity of the composites, but also impedes the dislocation movement during the deformation process, leading to the formation of dislocation plugging and the improvement of the mechanical properties of the composites. The experimental results indicate that a moderate addition of GO can augment the tensile strength of the material up to 1657 MPa at room temperature, the elongation up to 93% at high temperature, and the maximum depth-to-diameter ratio of the microformed parts up to 0.404. This work provides a new synergistic strengthening strategy of “medium-entropy alloys + nanoreinforcing phases” for material design of microdevices in fields such as aerospace and biomedical engineering.
研究领域:
材料科学
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纳米技术
·
金属基复合材料
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微纳加工
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力学性能研究
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Lu Liu,Jin Hu,Xiaoqiao Fan,Yuang Zhang,Shufen Zhang,Bingtao Tang
Sonic energy can be converted into thermal energy by ultrasonic thermal effect, which has significant application value in the fields of denoising and minimally invasive thermotherapy. Acoustic thermal conversion and thermal energy management capacities need to effectively improved during the process of acoustic-thermal utilization. Herein, we report novel PEG/Fe 3 O 4 -GO form-stable phase change materials (PCMs) with efficient sound wave absorption, acoustic-thermal conversion and thermal management capability. The PCMs are prepared by in-situ encapsulating polyethylene glycol (PEG) into graphene oxide (GO) network functionalized with Fe 3 O 4 nanoparticles. The unique construction of three-dimensional (3D) network structure not only improve thermal conductive performance but also enhance sound absorption ability effectively. Moreover, the acoustic-thermal conversion is further enhanced through the vibration heat production of Fe 3 O 4 nanoparticles. As a result, the form-stable composites exhibit superior energy storage density (173.7 J/g) and acoustic-thermal conversion performance. Thereby opening up a broad application prospect in the field of acoustic to heat energy conversion and storage.
研究领域:
材料科学
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能源工程
·
生物医学工程
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2021
·Vol. 32
·期 7
·8890-8902
·
IF 2.478
Liu Yulong,Chen Yufei,Zhao Hui,Teng Chengjun
Graphene oxide (GO) was obtained by improved Hummers method; the pseudoboehmite (AlOOH) nanoparticles were prepared with aluminum isopropoxide by Sol–Gel method and modified by the silane coupling agent (KH-550) to get KH550-AlOOH. GO was coated by KH550-AlOOH to gain KH550-AlOOH@GO component. In the meantime, the matrix (E51-BCE) was synthesized from epoxy resin (E51) and bisphenol A cyanate (BCE). KH550-AlOOH@GO/E51-BCE composites were prepared via in situ polymerization, E51-BCE as the matrix and KH550-AlOOH@GO as the reinforcement. The micro-morphology of KH550-AlOOH@GO was investigated by Fourier transform infrared spectrometer (FT-IR) and transmission electron microscope (TEM), and the results showed that KH550-AlOOH was well distributed on the GO sheet and with abundant hydroxyl groups on its surface. The X-ray diffraction (XRD) and scanning electron microscope (SEM) of KH550-AlOOH@GO/E51-BCE composites indicated that KH550-AlOOH@GO was uniformly dispersed in E51-BCE matrix and there was a good interaction between them, which was conducive to the performances of the composite material. Mechanical and dielectric properties of composite also were tested and analyzed. The highest bending strength, bending modulus, and impact strength of KH550-AlOOH@GO/E51-BCE composites were 158.23 MPa, 2.37 GPa, and 46.96 kJ/m 2 , respectively, when the content of KH550-AlOOH@GO was 0.6 wt%, which were 15.72%, 22.42%, and 198.22% higher than those of the matrix resin, respectively. The dielectric constant and dielectric loss of the composite were 3.12 and 0.0027 at 100 Hz.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 4
·963
·
IF 5
Weijie Chen,BingBing Zhang,Sheng Wang,Bin Xue,ShiWang Liu,MingZhe An,Zhao Yang,Guomin Xu
In recent years, phase change materials (PCMs) have been widely used in waste heat utilization, buildings, and solar and wind energy, but with a huge limitation from the low thermal conductivity, photothermal conversion efficiency, and low latent heat. Organic PCMs are eyecatching because of its high latent heat storage capability and reliability, but they still suffer from a lack of photothermal conversion and sharp stability. Here, we prepared sharp-stable PCMs by establishing a carbon material frame system consisting of graphene oxide (GO) and biochar. In particular, surfactants (CTAB, KH-560 and KH-570) were employed to improve the dispersity of GO in PEG. The differential scanning calorimetry results shows that the latent heat of PEG modified by CTAB grafted GO (PGO-CTAB) was the highest (191.36 J/g) and increased by 18.31% compared to that of pure PEG (161.74 J/g). After encapsulation of PGO-CTAB in biochar, the obtained composite PCM with the amount of biochar and PGO-CTAB in weight ratio 4:6 (PGO-CTAB/CS6(6)) possesses relatively high latent heat 106.51 J/g with good leak resistance and thermal stability, and with obviously enhanced thermal conductivity (0.337 W/(m·K)) and photothermal conversion efficiency (77.43%), which were higher than that of PEG6000 (0.325 W/(m·K), 44.63%). The enhancement mechanism of heat transfer and photothermal conversion on the composite PCM is discussed.Keywords:phase change materials (PCMs);graphene oxide (GO);biochar;surfactants;thermal conductivity;the photothermal conversion efficiency
研究领域:
材料科学
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能量存储
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Libo Ba,Chen Chen,Rui Meng,Yuliang Chen,Yuliang Wu,Yijiang Liu,Weiwei Huang,Fei Yang,Jun Cheng,Xuesong Yi
High-efficiency polyamide nanofiltration membranes were recognized as crucial for alleviating freshwater scarcity. However, the rapid reaction rate between piperazine (PIP) and trimesoyl chloride (TMC) resulted in low membrane flux and suboptimal separation efficiency, which limited the application and development of membrane technology. Herein, a novel MOF-303@GO nanomaterials were prepared by in-situ growth method, which were anchored in the framework of the substrate membrane through a phase separation method to regulate the speed of interfacial polymerization reaction to improve the performance of composite nanofiltration membranes. The MOF-303@GO was found to exhibit an adsorption effect on PIP monomers for the accumulation of the PIP molecules around the MOF-303@GO in the membrane pore, which effectively slowed transfer rate of PIP. This process resulted in a thin PA layer and rough surface, which alleviated the resistance to water molecule transport during the membrane separation process. The adsorption mechanism between MOF-303@GO and PIP was profoundly demonstrated by density-functional theory calculations. Besides, the fabricated membrane demonstrated a good water permeability of 14.53 L·m −2 ·h −1 ·bar −1 , along as well as a high Na 2 SO 4 rejection of 96.56 %. This research provided a novel material to regulate the diffusion state of PIP molecules and introduced a key strategy for uniformly blending to modify the substrate membrane, offering a potential solution to the issue of excessively rapid IP reaction rates.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Kexin Tao,Yuning Zhang,Yu Song,Zhiyuan Chen,Yao Wang,Yanxin Wang,Jianguo Tang,Linjun Huang
Water pollution has long been a significant issue, and the purification of dye wastewater plays a crucial role in addressing this problem. Graphene oxide (GO) has found extensive applications in water treatment due to its unique two-dimensional (2D) structure and a surface rich in a large number of oxygen-containing functional groups. We introduced silica(SiO 2 ) and polyethyleneimine(PEI) into GO to prepare a membrane. The experimental findings revealed that the 3-SiO 2 /GO binary composite membrane achieved a high water permeability of 45.6 L m −2 h −1 bar −1 while maintaining retention, which is nearly four times higher than that of the GO membrane (9.85 L m −2 h −1 bar −1 ).The water permeability of the PEI 0.2 -SiO 2 /GO ternary composite membrane achieved 42.37 L m −2 h −1 bar −1 . The rejection rate for methyl orange dye reached 92.36 %, with similar rejection rates all above 95 % observed for other dyes.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2017
·
IF 2.552
Yanxiang Zhang,Juan Wu,Yangyang Deng,Yanjun Xin,Huiling Liu,Dong Ma,Nan Bao
Ag/GO/g-C 3 N 4 composites were successfully synthesized by a sonochemical method. The structure and properties of the composites at various Ag loadings were characterized, and the Ag nanoparticles were confirmed by XRD, TEM and XPS measurements. UV–Vis diffuse reflectance spectra showed the presence of surface plasmon peak for Ag at 550 nm. The Ag/GO/g-C 3 N 4 composites demonstrated excellent activity in photocatalytic degradation of Rh B under visible light irradiation, and 5% of Ag nanoparticle was found to be the most suitable loading. The enhanced photocatalytic activity was ascribed to the role of GO nanosheets and Ag nanoparticles. The GO nanosheets acted as electrons transporter and acceptor in the composite and inhibited the charge recombination. The Ag nanoparticles acted as an electron traps to facilitate the separation of photogenerated electron-hole pairs and promoted interfacial electrons transfer. The OH ads and h + were the major radicals to be involved in the photocatalytic process.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Fangfang Yang,Mian Wu,Yuchao Wang,Saeed Ashtiani,Heqing Jiang
Metal–organic framework (MOF) nanosheets have emerged as promising materials for the construction of molecular sieve membranes due to their nanoscale thickness and highly oriented pore arrays. However, the development of defect-free MOF nanosheet membranes from rigid MOF nanosheets with efficient permselectivity and robust mechanical strength still remains a big challenge. Herein, we develop a facile GO-induced assembly strategy to design continuous and uniform two-dimensional MOF composite membranes, in which the copper 1,4-benzene dicarboxylate (CuBDC) nanosheets present a layer-stacking arrangement. With the assistance of flexible GO, the voids between the junctions of rigid MOF nanosheets are well-repaired, and the interlayer bonding interactions are strengthened, resulting in the fabrication of a continuous nanosheet membrane with robust mechanical strength. The obtained MOF nanosheet-based membranes display remarkable H2/CO2 separation performance with a superior H2 permeance of 9.6 × 10–7 mol m–2 s–1 Pa–1 and an ideal separation selectivity of 95.1 due to the well-defined size exclusion effect, showing great promise for H2 separation and purification. The repair strategy described here could also provide the blueprint for the development of other nanosheet-based membranes.
研究领域:
材料科学
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化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energetic Materials
·
2024
·
IF 1.7
Qiang Li,Chang Xu,Haibin Xu,Pengju Dong,Xinglong Liu,Suhang Chen,Kangzhen Xu
The high electrostatic discharge (ESD) sensitivity and mechanical sensitivity of silver acetylide-silver nitrate (SASN) seriously affects its application. For solving this problem, novel SASN@GO nanocomposites were successfully prepared by a self-assembly method. Thin sheet graphene oxide (GO) was coated on the surface of SASN, and prevented the agglomeration of SASN nanoparticles effectively. GO content in SASN@GO nanocomposites was controlled (0.5 ~ 1.5 wt%) to balance explosive performance and safety. Results reveal that SASN@(1%)GO exhibits the best thermal safety and desensitization, with thermal decomposition temperature, impact sensitivity (Is), friction sensitivity (Fs) and electrostatic energy at 50% ignition probability (E50) of 208.2°C, 1.96 J, 128 N and 0.64 mJ respectively, which are much better than that of SASN, indicating safety performances of SASN are improved through the introducetion of a small amount of GO. This work provides a strategy for reducing the explosion risk of SASN.
研究领域:
材料科学
·
爆炸物安全工程
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Jian Wang,Di Zhang,Zhaojin Li,Qiujun Wang,Huan Wang,H.J. Woo,S. Ramesh,Yachuan Shao,Bo Wang
Transition metal polysulfides/oxides typically perform high reversible capacities in sodium-ion batteries/capacitors (SIBs/SICs), but low conductivity and slow redox reaction kinetics are still the main challenges for achieveing fast kinetics. Here, we construct the VS 4 /Nb 2 O 5 /GO composite structure, which can promote the overall conductivity and structural stability through the GO and VS 4 bonding (V-C and S-C) on the surface. Meanwhile, the chain-like VS 4 and Nb 2 O 5 connected with the V-O chemical bond can accelerate the electron and ion transfer internally, thus enabling the internal structure exposed during the activation process. Additionally, the bonding of VS 4 and Nb 2 O 5 is calculated by density functional theory (DFT), indicating that the strong metallic properties of the composite. When as the anode material of SIBs, the specific capacity of 268.8 mA h g −1 can be maintained after 2000 cycles at a current density of 10 A g −1 . After that, SICs are assembled using activated carbon (AC) as the cathode, which exhibit 58.01 Wh kg −1 at high power density of 3800 W kg −1 . This unique composite structure design can provide a reference for achieving fast electron and ion transport both internally and externally to the electrode material.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 7
·1-11
·
IF 5.3
Li Junhong,Huang Hui,Xie Shuqian,Zhang Huan,Huang Xinyu,Yue Ruirui,Xu Jingkun,Duan Xuemin
A promising electrochemical sensing platform for the detection of ponceau 4R in food has been fabricated based on the carboxylated graphene oxide (GO-COOH), metal–organic framework (MOF) UIO-66-NH 2 , and poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). To this end GO-COOH was covalently coupled with UIO-66-NH 2 through amide reaction, endowing the material (GO-CONH-UIO-66) unique hierarchical pores and high chemical stability and as a result improving the conductivity of MOF and the dispersion of GO. After the addition of PEDOT:PSS into GO-CONH-UIO-66, the continuity and conductivity of the composite (PEDOT:PSS/GO-CONH-UIO-66) have been further enhanced, due to the high conductivity, favorable film-forming, and hydrophilic properties of PEDOT:PSS. Systematic electrochemical experiments confirm that the PEDOT:PSS/GO-CONH-UIO-66/GCE shows satisfactory electrochemical sensing properties towards the detection of ponceau 4R, with a wide linear detection range of 0.01–30 μM, a low limit of detection of 3.33 nM, and a high sensitivity of 0.606 μA μM −1 cm −2 . The PEDOT:PSS/GO-CONH-UIO-66 sensing platform was successfully used to detect ponceau 4R in beverage, and the detection results were compared with high-performance liquid chromatography. As a result, the PEDOT:PSS/GO-CONH-UIO-66 composite shows a promising application prospect for rapid detection of ponceau 4R in food and will play significant role in food safety detection and supervision. Graphical Abstract
研究领域:
分析化学
·
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
International Journal of Biological Sciences
·
2019
·Vol. 15
·期 5
·999-1009
·
IF 4.067
Ma Shijing,Miao Hongtao,Luo Yuan,Sun Yingming,Tian Xiaoli,Wang Feng,You Chengcheng,Peng Shan,Tang Guiliang,Yang Cui,Sun Wenjie,Li Shuying,Mao Yanling,Xu Jieyu,Xiao Yu,Gong Yan,Quan Hong,Xie Conghua
With the advancement of nanotechnology, various nanocomposites have been applied in the diagnostics and treatment of cancer. We synthetized FePt nanoparticles which were assembled on the surface of graphene oxide (GO). These novel FePt/GO nanosheets simultaneously act as a chemotherapy drug and enhance radiosensitivity. In this study, transmission electron microscope, dynamic light scattering, X-ray photoelectron spectroscope and Fourier transform infrared spectroscopy were used to characterize surface morphology and chemical composition of FePt/GO nanosheets (NSs). Their cytotoxicity in various cancer and normal cells was evaluated by cell counting kit-8 assay, and their effects on radiosensitization were determined by colony formation assay. To explore the underlying mechanisms, we measured the intracellular reactive oxygen species levels and autophagy formation. Monodansylcadaverine-staining, Western Blotting and ultrastructure analysis were utilized to assess autophagy. The results demonstrated that FePt/GO NSs not only selectively suppressed the proliferation of cancer cells, but also increased their radiosensitization. Moreover, FePt/GO NSs induced autophagy, which might result in promoted sensibilization of radiotherapy. In conclusion, with good safety and efficacy, FePt/GO NSs are safe and effective to suppress proliferation, enhance radiosensitization and induce autophagy of human non-small cell lung cancer cells. They are potential for the treatment of lung cancer.
研究领域:
纳米医学
·
肿瘤学
·
材料科学
·
癌症治疗
✓ 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）