ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Liqing Ai,Weikang Lin,Limei Ai,Yannan Li,Mengyi Qiang,Xiaoya Wang,Min Shi,Zhengbao Yang,Xi Yao
The integration of soft, conformable components and rigid microelectronics or devices is a critical frontier in stretchable hybrid device development. However, engineering interconnects capable of tolerating high-stress concentrations and preventing debonding failures remain a key challenge. Here a stretchable conductive interconnect derived from the liquid metal conductor with supramolecular confinement is reported, capable of reliably connecting soft and rigid parts through a simple “Heat-Press-N-Go” method. Leveraging the dynamic bonding nature of supramolecular polymers, when confined within liquid metal compartments, not only effectively stabilizes the conductive path of the stretchable interconnect, but also offers high adhesion to diverse surfaces, reaching an exceptional electrical stretchability of up to 2800%. As proof of concept, this interconnect is used to assemble wearable devices including reconfigurable stretchable circuits, multifunctional sensors, and on-skin electromyography, exhibiting high signal integrity and mechanical durability. The “Heat-Press-N-Go” chip and circuit integration offers the boundless potential to enhance the adaptability, convenience, and versatility of on-skin and wearable electronics across various applications.
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DOI
高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
·
2025
·
IF 1.8
Hanwen Duan,Chaoyi Zhu,Ying Yuan,Jinxi Li,Haixiang Li,Yingjun Li
Surface functionalization of graphene oxide(GO) represents a direct and highly effective approach to improve the dispersion and particle size distribution of palladium nanoparticles on the surface of the GO. Pd/4-ethynylaniline-functionalized GO(Pd/PGO) with highly dispersed Pd was prepared by using 4-ethynylaniline (PEAN) as a modifier, which would strengthen the metal-support interaction (MSI) between Pd and GO. Characterizations confirm that PEAN is successfully grafted onto GO via epoxy ring-opening and amidation reaction. Transmission electron microscopy (TEM) and inductively coupled plasma (ICP) results confirm that the average particle size of Pd nanoparticles on the reduced graphene oxide (RGO) surface is 23.0 nm, with a loading rate of 6.23%. As the degree of functionalization increases, the average particle size of Pd nanoparticles loaded on the PGO7 surface decreases to 5.2 nm, while the loading rate rises to 8.73%. Therefore, it can be concluded that a high degree of PEAN functionalization enhances the loading rate of Pd nanoparticles on the GO surface while improving dispersion and particle size distribution. This study provides a direct and effective approach for designing metal catalysts with high dispersion and narrow particle size distribution. Moreover, the π-π conjugated skeleton of PEAN overlaps with the sp2 carbon network of GO, which facilitates electron transfer between GO and Pd.
研究领域:
材料科学
·
纳米技术
·
催化化学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Meiyan Liu,Xiuchen Wang,Yajing Wang,Bobo Shi,Jiaxin Feng,Zhe Liu
To break through the performance bottlenecks of electromagnetic protection materials in terms of lightweight design, broadband absorption, and multifunctional integration, this work proposes a synergistic design strategy based on magneto–dielectric coupled absorbing units and periodic micro-circular array superstructures. At the microscopic scale, oleic acid (OA)-modified γ-Fe2O3/graphene oxide (OA-γ-Fe2O3/GO) composite absorbing units were constructed and organized into precisely controllable millimeter-scale periodic micro-circular arrays. Acting as an artificial electromagnetic structure capable of actively modulating the electromagnetic field distribution, the array enables multiple scattering, progressive attenuation, and continuous impedance transition within the interface, thereby significantly optimizing the energy dissipation pathways. A pressing process was employed to integrate polytetrafluoroethylene (PTFE) onto the fabric surface, realizing a high-performance composite fabric with an overall thickness of only 0.128 mm. The resulting composite exhibits outstanding performance, with a shielding effectiveness (SET) of 73.99 dB, a minimum reflection loss (RLmin) of −31.56 dB, and an effective absorption bandwidth (RL < −10 dB) spanning 10.93–11.83 GHz. Meanwhile, it demonstrates excellent multifunctional properties, including a water contact angle of 125.7°, a tensile strength of 142 MPa, and the retention of 93% of its initial shielding performance after 10 000 bending cycles. Compared with commercial thin shielding textiles, the proposed material achieves an improvement of over 20% in shielding effectiveness and over 30% in absorption performance. This study not only provides a high-performance electromagnetic protection material but also establishes a cross-scale “unit–structure” synergistic design framework, offering a new fundamental paradigm for developing intelligent and adaptive electromagnetic protection systems. The strategy holds great potential for applications in stealth technology, aerospace engineering, and wearable electronics.
研究领域:
材料科学
·
电磁功能材料
·
纳米复合材料
·
柔性电子学
·
表面工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2022
·Vol. 30
·期 7
·2943-2954
·
IF 4.705
Lu Yanran,Zhang Wen,Wang Mei,Zhang Hua,Li Jiahui,Luo Wenhao
The adsorption is widely used to remove dyes from wastewater because of its low cost, simple preparation, and environmental friendliness. However, the existing adsorbents suffer from difficult recycling, inconvenient use, and a low regeneration rate. In this study, polyacrylonitrile (PAN) and graphene oxide (GO) was mixed for electrospinning GO/PAN nanofiber membrane and then chitosan (CS) was grafted to obtain CS-GO/PAN nanofiber membrane. CS-GO/PAN membranes were characterized with FE-SEM, EDX, FT-IR and, WCA. The effects of membrane types, dosage, solution pH on the removal of dye sunset yellow (SY) were systematically investigated. The results showed that more than 80% of SY were removed within 15 min at pH 2 using 100 mg CS-GO/PAN membrane. Adsorption kinetic data were fitted well with the pseudo-second-order model and adsorption achieved equilibrium within 240 min. The isotherm study followed the Langmuir model with the actual maximum adsorption capacity of 211.54 mg/g. After 5 adsorption–desorption cycles, the adsorption efficiency and the desorption efficiency of CS-GO/PAN were over 90% and 93%, respectively. Moreover, the membrane recovered easily from the water while its integrity was still maintained. The CS-GO/PAN membrane demonstrates the virtue of high adsorption capacity, easy operation, and good reusability, which could be considered as a promising material for adsorbing dyes in wastewater.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Xiaoju Yan,Shirong Cheng,Cong Ma,Junyu Li,Guodong Wang,Chengyu Yang
Sodium tetraborate pentahydrate (STB) was intercalated into graphene oxide (GO) nanosheets to form a nanocomposite (STB@GO). Subsequently, it was self-assembled on a substrate membrane to prepare STB@GO nanofiltration membrane. The properties of the STB@GO powder samples and the nanofiltration membrane were studied using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle (CA), and zeta potential . When the STB concentration was 1.0 g/L in the cross-linking reaction, the membrane was described as the STB 2 @GO membrane and exhibited a large interlayer space ( d -spacing = 1.347 nm), high hydrophilicity (CA = 22.2 ° ), and high negative potential (zeta = −18.0 mV). Meanwhile, the pure water flux of the membrane was significantly increased by 56.60% than that of the GO membrane. In addition, the STB 2 @GO membrane exhibited a favorable capability for dye rejection,98.52% for Evans blue (EB), 99.26% for Victoria blue B (VB), 91.94% for Alizarin yellow (AY), and 93.21% for Neutral red (NR). Furthermore, the STB 2 @GO membrane performed better in dye separation under various types and concentrations of dye, pH values, and ions in solution. Thus, this study provides a promising method for preparing laminated GO nanofiltration membranes for dye wastewater treatment .
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
ACS Omega
·
2020
·
IF 2.87
Ping Fan,Jiahao Tang,Shunxin Jia,Pengbo Liu,Jintao Yang,Feng Chen,Zhengdong Fei,Mingqiang Zhong
Two nanocomposites with a hierarchical structure (GO@CuSilicate@Fe3O4 and GO@Fe3O4@CuSilicate) were fabricated in this paper. These as-synthesized nanocomposites were analyzed for their structural, compositional, and morphological features by X-ray diffraction, scanning electron microscopy (SEM), Raman spectroscopy, and Brunauer–Emmett–Teller methods. SEM images showed that both nanocomposites had a core–shell structure, and their shells were composed of CuSilicate nanoneedle arrays. Further, their total electromagnetic shielding efficiency was measured and compared in a wide frequency range of 8–12 GHz (X-band). Because of the “antenna” role of CuSilicate nanoneedle arrays and the polarization at the interface between graphene oxide (GO) and Fe3O4, GO@Fe3O4@CuSilicate showed higher electromagnetic shielding performance than that of GO@CuSilicate@Fe3O4. With 1 mm thickness, GO@Fe3O4@CuSilicate showed a high electromagnetic shielding efficiency (over 40 dB) in the whole X-band (8.2–12.4 GHz) and reached a maximum value (41.8 dB) at 8.2 GHz. Its total electromagnetic shielding efficiency was mainly contributed by absorption rather than reflection. This study provided an idea for the structural design of high-performance electromagnetic shielding materials in the GHz frequency range (X band).
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Mei He,Peng Xu,Yanjia Zhang,Kesheng Liu,Xiaoping Yang
In this study, we describe the preparation of a hierarchical nanostructure consisting of tetraamino-phthalocyanine nanowires (TAPc NWs) decorated on graphene oxide (GO) supported on carbon fibers (CF-TAPc NWs@GO) through one-pot method of solvent-evaporation and self-assemble. The morphology and chemical composition of various CFs are investigated. The X-ray diffraction and UV–vis spectroscopy demonstrate the formation of α-phase TAPc NWs is induced with J-aggregation, and the possible assembly mechanism is presented. The adhesive forces between the CFs and TAPc molecules are quantitatively characterized by atomic force microscopy (AFM) with peak force quantitative nanomechanical mapping (PF-QNM) mode, explaining the reason of TAPc NWs preferentially grown on the GO sheets. Moreover, the decreased contact angle and increased surface energy promote the impregnating of the matrix onto the CFs surface to improve the wettability. The interfacial shear strength of CF-TAPc NWs@GO composite is remarkably enhanced by 66.9% at 30 °C and 206.6% at 180 °C compared with untreated CF, which could be ascribed to its hierarchical nanostructure and increased active groups. The interfacial failure mechanisms are discussed by PF-QNM of AFM, which demonstrate that the interfacial transition layer has been established by the hierarchical structure of TAPc NWs@GO and act as a buffer to transfer stress, resulting in the cohesive failure. Additionally, the multiple interfacial polarization and conductive loss from the hierarchically structure of TAPc NWs@GO are highly efficient in endowing CF composite with a satisfactory electromagnetic interference (EMI)-shielding effectiveness of 29 dB in the X-band at a low CF-TAPc NWs@GO content of 0.5 wt%, which is enhanced 108.3% compared with untreated CF. The prepared CF-TAPc NWs@GO/EP composite shows great potential in aerospace and EMI applications.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2019
·
IF 4.85
Shikang Yin,Jinze Li,Linlin Sun,Xin Li,Dong Shen,Xianghai Song,Pengwei Huo,Huiqin Wang,Yongsheng Yan
Photocatalytic reduction of CO2 by semiconductors is of great significance in generating value-added fuels. Here, we construct a novel S–C–S heterojunction constituted of MoS2/SnS2/r-GO by a simple solvothermal method. The prepared MoS2/SnS2/r-GO showed significant photoexcitation of photosensitive oxygen (ROS) by electron spin resonance spectroscopy, demonstrating that superoxide radicals (•O2–), pores, and hydroxyl radicals (•OH) are the main active species. The constructed S–C–S heterojunction has a multilevel electron transport mechanism and synergistic effect, which provides the possibility of producing more organic fuel. The photocatalytic materials were characterized by XRD, XPS, SEM, TEM, PL, etc. As a result, the atomic layer MoS2/SnS2/r-GO heterojunction exhibited a CO formation rate of 68.53 μmol g–1 h–1 and a CH4 formation rate of 50.55 μmol g–1 h–1, respectively. This work opens up new prospects for the formation of heterojunctions of chalcogenide transition-metal sulfides.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 2.8
Xiaofang You,Yuxia Hou,Jingwei Wang,Lin Li,Meng He
This study aims to address the challenge of treating Pb 2+ in mining wastewater, a persistent issue in water environment pollution control. The sodium alginate/graphene oxide/polyethylene glycol (SA/GO/PEG) gel beads were designed and prepared with graphene oxide (GO), sodium alginate (SA), and polyethylene glycol (PEG) as raw materials by combining experiments and simulation. Firstly, the simulation system of SA/GO/PEG gel bead was constructed through molecular simulation, and the optimal composition of SA/GO/PEG gel bead was determined. The simulation results indicated that, with a PEG polymerization degree of 4000, the SA/GO/PEG gel bead system exhibited the greatest structural stability and the most effective cross-linked. Based on the understanding of the structure–performance relationship, SA/GO/PEG4000 gel beads were prepared to achieve an adsorbent with both high adsorption capacity and good stability. Characterization results indicated the successful cross-linked of polyethylene glycol with sodium alginate and graphene oxide, which not only introduced additional oxygen-containing functional groups and increased the crystallinity of the gel beads but, more importantly, led to the formation of a dense and complex three-dimensional network. This structure contributed to the improved thermal stability of the composite. Adsorption experiments showed that the adsorption of Pb 2+ onto SA/GO/PEG gel beads followed the Langmuir isotherm model. The calculated maximum adsorption capacities at 25°C, 35°C, and 45°C were 490.20, 497.51, and 526.32 mg/g, respectively. Furthermore, the gel beads exhibited excellent reusability, retaining 92.64% of their initial adsorption capacity after four consecutive adsorption–desorption cycles.
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2018
·
IF 13.709
Yu Gu,Shuai Chen,Jun Ren,Yi Alec Jia,Chengmeng Chen,Sridhar Komarneni,Dongjiang Yang,Xiangdong Yao
Searching for the highly active, stable, and high-efficiency bifunctional electrocatalysts for overall water splitting, e.g., for both oxygen evolution (OER) and hydrogen evolution (HER), is paramount in terms of bringing future renewable energy systems and energy conversion processes to reality. Herein, three-dimensional (3D) Ni3FeN nanoparticles/reduced graphene oxide (r-GO) aerogel electrocatalysts were fabricated using precursors of (Ni,Fe)/r-GO alginate hydrogels through an ion-exchange process, followed by a convenient one-step nitrogenization treatment in NH3 at 700 °C. The resultant materials exhibited excellent electrocatalytic performance for OER and HER in alkaline media, with only small overpotentials of 270 and 94 mV at a current density of 10 mA cm–2, respectively. The good performance was attributed to abundant active sites and high electrical conductivity of the bimetallic nitrides and efficient mass transport of the 3D r-GO aerogel framework. Furthermore, an alkaline electrolyzer was set up using Ni3FeN/r-GO as both the cathode and the anode, which achieved a 10 mA cm–2 current density at 1.60 V with durability of 100 h for overall water splitting. Density functional theory calculations support that Ni3FeN (111)/r-GO is more favorable for overall water splitting since the surface electronic structure of Ni3FeN is tuned by transferring electrons from Ni3FeN cluster to the r-GO through interaction of two metal species. Thus, the currently developed Ni3FeN/r-GO with superior water-splitting performance may potentially serve as a material for use in industrial alkaline water electrolyzers.
研究领域:
材料科学
·
电催化
·
能量转换
·
计算化学
·
纳米材料
✓ 已验证
DOI
高影响因子
APPLIED ENERGY
·
2019
·
IF 8.426
Lisi Jia,Yi'ang Li,Ying Chen,Jiacheng Wang,Songping Mo,Jun Li,Gang Liu
A new type of hybrid suspension comprising microencapsulated phase change material (MEPCM) spheres and graphene oxide (GO) nanoplatelets is proposed. The dispersion stability of the MEPCM/GO suspension was guaranteed by precisely adjusting the density of the MEPCM particles, which had n-heptadecane as the core and hexanediol diacrylate polymer as the shell. The MEPCM particles with excellent monodispersity were fabricated successfully using a co-flowing microfluidic method. The micromorphology of the hybrid MEPCM/GO suspension, measured using a transmission electron microscope, showed that the MEPCM particles and GO nanoplatelets were dispersed uniformly in the base fluid without aggregation. The high dispersity and stability of the hybrid MEPCM/GO suspension provide basic conditions for regulating its thermo-physical properties. Thermal conductivity, specific heat capacity, and viscosity were measured using a laser-flash analysis device, a differential scanning calorimeter, and a rotational rheometer, respectively. The effects of the concentrations of the MEPCM particles and GO nanoplates were investigated. Results showed that enhanced thermal conductivity and specific heat capacity were achieved for the hybrid MEPCM/GO suspension. This advantage of the hybrid suspension became increasingly obvious as the MEPCM and GO concentrations increased. The viscosity of the hybrid MEPCM/GO suspension changed only slightly with the GO concentration, whereas it increased with the MEPCM concentration, and thus showed a relatively good rheological property. The proposed hybrid MEPCM/GO suspension with enhanced thermo-physical properties possesses immense potential for use as a novel working fluid for high-efficiency heat transfer.
研究领域:
材料科学
·
热工学
·
纳米流体
·
传热
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DOI
高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2020
·Vol. 81
·期 7
·1461-1470
·
IF 1.638
Lu Ying,Li Youlin,Gao Yi,Ai BoXuan,Gao Wei,Peng Guilong
In this paper, a simple and green method was developed to fabricate a three-dimensional (3D) graphene-based material with the assistance of caffeic acid (CA). The prepared 3D graphene displayed fast and high sorption for norfloxacin (NOR) and ketoprofen (KP). Their adsorption equilibrium was achieved within 12 h for NOR and KP, which was attributed to their fast diffusion in the porous structure of the 3D graphene. The maximum adsorbed amount of this adsorbent was 220.99 mg/g for NOR and 125.37 mg/g for KP according to the Langmuir model at pH 6.6, 298 K. In the competitive adsorption of six pharmaceuticals, the organic compounds in the form of cations are preferentially adsorbed on the adsorbent. The co-existing organic compounds in the actual wastewater do not seriously inhibit the adsorption of NOR and KP. This study provides the theoretical basis for the facile and low-cost preparation of high-performance 3D graphene adsorbents. The results of this study demonstrate the potential utility of 3D graphene as a very effective adsorbent for pharmaceuticals removal from contaminated water.
研究领域:
环境科学
·
材料科学
·
化学工程
·
水处理技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）