JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Jiabao Zang,Haifeng Li,Qingzhi Zhu,Ziheng Wang,Hubuli Bazaerbieke,Li Sun,Meijie Zhang
There are few reports about the electromagnetic wave (EMW) absorption properties of α−SiC based composites, and almost all of them focus on β−SiC polymorphs. In this study, α−SiC p /α−SiC nw /SiO 2 /C hybrid composites (sample SiC−C1500) with heterostructure α−SiC nanowires (α−SiC nw ) of multiple interfaces 4H−SiC/6H−SiC/SiO 2 /C were successfully prepared using mixed powder (α−SiC+m−SiO 2 +C) as raw material based on the heterogeneous nucleation−growth mechanism, and their microwave absorption properties were investigated. Meanwhile, the samples SiC−V2150 and Si−C1500 were obtained by vacuum calcination (α−SiC+m−SiO 2 +C) at 2150 0 C and carbothermal reduction (Si+m−SiO 2 +C) at 1500 0 C, respectively, and their phase compositions were α−SiC p /C and β−SiC p /β−SiC nw /SiO 2 /C, respectively. The sample SiC−C1500 exhibited excellent EMW absorption properties, with a minimum reflection loss (RL min ) value of −18.37 dB at a thickness of 1.3 mm, and a maximum effective absorption bandwidth (EAB max ) value of 4.9 GHz at a thickness of 1.5 mm. In contrast, the EMW absorption performance of the samples SiC−V2150 and Si−C1500 was obviously poor, which was consistent with the RCS (Radar Cross−Section) simulation results. The formation of α−SiC p /α−SiC nw /SiO 2 /C composites (sample SiC−C1500) containing 4H−SiC/6H−SiC/SiO 2 /C multi-interfaces heterostructure α−SiC nanowires (α−SiC nw ) was analyzed. The excellent EMW absorption performance of SiC−C1500 sample could be attributed to the effective regulation of α polymorphs, nanowire heterostructure, multi−component hybridization. This study supplies a helpful experience and reference for improving the high temperature EMW absorption performance of SiC matrix composites.
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
WATER RESEARCH
·
2024
·
IF 11.4
Chenxu Wang,Kangying Guo,Beibei Liu,Yue Gao,Qinyan Yue,Haijiao Xie,Baoyu Gao
The efficient removal of antibiotics and its combined pollutants is essential for aquatic environment and human health. In this study, a lignin-based organic flocculant named PRL-VAc-DMC was synthesized using pulp reject as the raw material, with vinyl acetate (VAc) and methacryloxyethyltrimethyl ammonium chloride (DMC) as the grafting monomers. A series of modern characterization methods were used to confirm the successful preparation of PRL-VAc-DMC and elucidate its polymerization mechanism. It was found that the Ph-OH group and its contiguous carbon atoms of lignin served as the primary active sites to react with grafting monomers. Flocculation experiments revealed that PRL-VAc-DMC could react with tetracycline (TC) through π-π* interaction, hydrophobic interaction, hydrogen bonding, and electrostatic attraction. With the coexistence of humic acid (HA) and Kaolin, the aromatic ring, hydroxyl, and amide group of TC could react with the benzene ring, hydroxyl group, and carboxyl group of HA, forming TC@HA@Kaolin complexes with Kaolin particles acting as the hydrophilic shell. The increase in particle size, electronegativity, and hydrophily of TC@HA@Kaolin complexes facilitated their interaction with PRL-VAc-DMC through strong interfacial interactions. Consequently, the presence of HA and Kaolin promoted the removal of TC. The synergistic removal mechanism of TC, HA, and Kaolin by PRL-VAc-DMC was systematically analyzed from the perspective of muti-interface interactions. This paper is of great significance for the comprehensive utilization of pulp reject and provides new insights into the flocculation mechanism at the molecular scale.
研究领域:
环境科学
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化学工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Yijie Liu,Jintang Zhou,Zuolong Ning,Hexia Huang,Zhenyu Cheng,Lvtong Duan,Yucheng Wang,Xuewei Tao,Peijiang Liu,Yao Ma,Zhengjun Yao
In order to ensure the operation and longevity of electronic devices, the design of multifunctional composites integrating microwave absorption (MA) and thermal conduction has become the key to solving the problem. However, the superior MA properties and thermal conductivity are usually incompatible in the blend system. In this study, a modified carbon fiber/silicone rubber-oriented structure is designed based on the multiscale design concept of heterostructures with multiple interfaces. The forward deposition-reverse growth mechanism is utilized at the microscopic level to construct multi-interfacial heterogeneous structures on the surface of 1D carbon fibers (CFs). The magneto-electric coupling network of the multi-interfacial heterostructure induces interfacial polarization and enhances MA properties and heat transfer. Subsequently, the structural design of the modified CFs is carried out on a macroscopic scale using the ice template method. The directionally aligned modified CFs/silicone rubber aerogel composites are obtained by backfilling with silicone rubber (SR). The samples achieved an effective absorption bandwidth of 4.41 GHz and a maximum reflection loss of −42.29 dB with ultra-thin thickness (1.3 mm). The thermal conductivity of the sample is improved to 200% compared to pure silicone rubber. The composites with directional alignment have promising applications in lightweight and flexible electronic packaging.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 25
·13410-13417
·
IF 14.511
Mengzhao Liu,Zhe Sun,Chaofan Zhang,Shiyan Li,Chaozhen He,Yuefeng Liu,Zhongkui Zhao
Developing highly efficient and low-cost electrocatalysts for the hydrogen evolution reaction (HER) in alkaline and neutral media is crucial but still a significant challenge due to the sluggish multi-step reaction kinetics involved. The interface formed between two or more components in heterogeneous catalysts plays a critical role for electrocatalysis as it can tune the electron structure to enhance the catalytic performance. Herein, we report that multi-interface engineering of NiS, Ni2P and Ni on Ni foam results in a unique coil-like NiS–Ni2P/Ni hybrid electrocatalyst on Ni foam, which is synthesized through a two-step approach: firstly, electrodeposition of Ni microspheres on Ni foam (NF), followed by partial thermal sulfuration and phosphorization. Owing to the interfaces between NiS, Ni2P and Ni, which function as electrochemical active sites and are beneficial for dissociative adsorption of water molecules, the resultant NiS–Ni2P/Ni/NF exhibits much superior hydrogen evolution reaction (HER) catalytic activity with small overpotentials of 53 mV and 115 mV to deliver a current density of 10 mA cm−2 in alkaline and neutral media. Remarkably, NiS–Ni2P/Ni/NF needs a lower overpotential than Pt/C to achieve a higher current density of 100 mA cm−2. Density functional theory calculations suggested that the real active sites are located at the multi-interface of NiS, Ni2P and Ni, contributing an outstanding electrocatalytic performance. This work not only reports a highly efficient coil-like multi-interfacial NiS–Ni2P/Ni hybrid electrocatalyst on Ni foam for hydrogen production, but also paves a new way for designing other highly efficient electrocatalysts.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
Advanced Fiber Materials
·
2025
·
IF 21.3
Feng Yuhao,Hai Guangtong,Sun Guoxu,Chen Keke,Wang Xiyao,Zhao Jindi,Li Yang,Chen Xiao
The rapid development of miniaturized and high-power electronics urgently demands multifunctional materials that simultaneously mitigate thermal shock and electromagnetic interference (EMI). While phase change materials (PCMs) offer thermal buffering capabilities, their limited thermal conductivity and inability to address EMI restrict applications in integrated electronic systems. Herein, we develop multi-interfacial engineered composite PCMs (PW–MXene/CNFs@MoS 2 ) that synergistically integrate thermal management and electromagnetic wave (EMW) absorption. Through hierarchical assembly of 2D MXene and MoS 2 nanosheets on a 3D carbon nanofiber (CNF) network, composite PCMs achieve synergistic dual functionality. The architecture establishes an efficient phonon conductive framework for rapid thermal dissipation, while maintaining remarkable heat storage capacity of 121.8 J/g. Additionally, polarization-enhanced heterointerfaces enable excellent EMW absorption (− 64.1 dB reflection loss across 4.28 GHz bandwidth below 2.1 mm). The composite PCMs also exhibit outstanding cyclic stability, retaining 97% of their phase change enthalpy after 300 thermal cycles, while maintaining superior leakage resistance under combined thermal and mechanical stresses. Practical validation reveals its dual functionality: a 6.4 °C thermal buffer under 1200 W/m 2 thermal shock and effective Bluetooth signal shielding. This work provides an innovative solution for the synergistic management of thermal shock and electromagnetic interference issues, showing viable potential for applications in advanced electronic systems. Graphical
研究领域:
材料科学
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电子工程
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热力学
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电磁学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Xiaoyu Du,Tong Gu,Jingyu Xu,Yanqing Qu,Hongge Jia,Shuangping Xu,Mingyu Zhang,Jun Chen
Covalent organic framework (COF) membranes have garnered significant attention as a promising separation technology for dye wastewater treatment, owing to their meticulously ordered pore structure and exceptional chemical stability. The Polyamide COF (Amd-COF) membrane, characterized by amide-linkages, exhibits excellent hydrophilicity and chemical stability, whereas the polyamine COF (Amn-COF) membrane, featuring amine-linkages, demonstrates remarkable flexibility and resistance to chlorine. In this study, we present the synthesis of defect-free Amd/TA-PVA/Amn COF composite membranes with large area and continuous structure through multi-interfacial polymerization. The incorporation of an intermediate layer (TA-PVA) enables stable formation of strong hydrogen bonds between Amd-COF and Amn-COF, thereby enhancing the durability of the composite membranes. Due to the unique structural features and functional groups of the Amd/TA-PVA/Amn COF composite membranes, they exhibit not only high water permeability (119.24 L•m −2 h −1 bar −1 ) but also exceptional rejection efficiency towards Rhodamine B, achieving up to 96.55 % removal. Specifically, the membranes treated with a chlorination intensity of 2000 ppm exhibit stable permeance and dye rejection performance. Moreover, these membranes exhibit exceptional stability in both structure and performance over multiple cycles. This can primarily be attributed to the highest density of amino moieties and phenolic hydroxyl groups on their surface. This work underscores the significant potential of COF membrane incorporating amide and amine functionalities for high-performance separation and anti-chlorine applications.
研究领域:
材料科学
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化学工程
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Zhiheng Wang,Yanjie Wang,Jing Zhou,Xukai Wu,YueQun Li,Run Jiao,Kongyao Chen,Siwen Cui,Yanli Zhang,Huijun Zhao,Liwei Mi
The application of aqueous zinc ion batteries still faces severe challenges, including Zn dendrites formation, side reactions, and instability of cathode materials. In this study, a multi-interface optimization strategy using aniline (ANI) as an electrolyte additive is proposed to solve these problems simultaneously. Ultrathin polymer layers can be formed on the surfaces of electrodes and separator owing to the in-situ polymerization of ANI. Thus, the structural stability of the anode, separator and cathode can be improved due to alleviated side reactions and enhanced interfacial protection of electrodes and separator. The strong interaction between Zn 2+ and ANI can distribute the Zn 2+ flux well and promote the de-solvation process, resulting in more even Zn deposition. With the ANI additive, Zn//Zn symmetric cells can work for more than 1200 h, and more than 400 h even at higher current densities and plating capacities (10 mA cm −2 , 10 mA h cm −2 ). The excellent cycling stability of Na 3 V 2 (PO 4 ) 3 //Zn coin and pouch cells verified the feasibility of using ANI as an additive for performance improvement. As a simple electrolyte additive strategy, multifunctional ANI can realize multi-interface modification effects for electrodes and separator, which is expected to provide a viable solution for the commercialization of long-life AZIBs.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2018
·Vol. 47
·期 41
·14767-14773
·
IF 4.099
Sisi Dai,Bin Quan,Baoshan Zhang,Xiaohui Liang,Guangbin Ji
In this work, novel one-dimensional (1D) Mo2C/Co@C nanorods (MCRs), using a metal–organic framework (zeolitic imidazolate framework; ZIF-67) as the coating layer to form multi-interfaces, were formed via a facile hard template method. Compared with previous works relating to porous-carbon-based Mo2C nanocomposites, the well-designed MCRs in this study possess a double attenuation mechanism due to the existence of the dielectric materials Mo2C and remaining carbon (RC) and the magnetic compound Co. Thanks to a new design and the multiple useful compounds, the as-prepared MCRs have the features of demonstrating multi-interfacial polarization, a large surface area and highly isotropic dissipation. Hence, the samples not only inherit the excellent microwave absorbing abilities of Mo2C but they also have a broadened effective bandwidth. For example, the minimum reflection loss (RL) value of MCRs with 35% sample loading could reach −47.98 dB. More importantly, RL values of less than −10 dB can be observed from 11.08 to 17.08 GHz (an effective bandwidth of 6.0 GHz) with a matching thickness of 1.6 mm, which is much better than previous work involving porous-carbon-based Mo2C nanocomposites. Firstly, we have reasonably redesigned the samples to have good absorbing properties for practical applications. Secondly, we have paved a highly efficient and universal way to synthesize 1D microwave absorbers with multiple valuable interfaces.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Bin Xue,Hou-Yong Yu,Chengling Huang,Somia Yassin Hussain Abdalkarim,Xiang Chen,Chuang Wang,Xia He,Yanjuan Dong
With the fast growth of wearable intelligent devices, flexible sensors with a broad strain sensing range and high sensitivity are in urgent demand. Furthermore, the sensitivity of flexible wearable electronic devices to various signal capture depends on multiple interfacial bond interactions and a microstructure. However, a flexible sensor without multiple interfacial bonds has poor mechanical properties, low sensitivity/conductivity, and single sensing function to limit commercial sensor application. In this work, the novel dip-coating technique was used to design a flexible sensor based on polyvinyl alcohol with multiple interfacial bond interactions and a microcrack structure. Interestingly, the sensor exhibits high sensitivity with gauge factor > 100, a high conductivity of 356 mS m–1, impressive thermal sensitivity (0.01071 °C–1), a large strain of 344.5%, and excellent wear-resistance and durability. Possible sensing mechanisms under multiple stimuli have been presented. Moreover, flexible sensors with multiple signal monitoring can monitor real-time full-range human body motion and physical signal collection, providing a promising strategy to develop this sensor with outstanding performance in flexible sensor and sporting applications.
研究领域:
材料科学
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电子工程
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jintang Zhou,Yijie Liu,Congyu Zhou,Weize Wang,Lvtong Duan,Yucheng Wang,Zhengjun Yao
The modern and complex environment requires microwave absorbing materials (MAMs) that can cope with environmental changes. In particular, the high humidity, high salt spray and high temperature of the marine environment conditions have been the toughest. Consequently, the development of integrated materials with both microwave absorption (MA) and corrosion resistance has emerged as a top priority. In this work, spherical NiCo 2 S 4 (NCS) particles with stable size were prepared by a simple solvothermal method. Furthermore, the self-polymerization of dopamine (PDA) on the surface of NCS was achieved by exploiting the film-forming ease of dopamine. A series of PDA-NCS particles with different interfaces were fabricated by tuning the ratio of NCS and dopamine. The integrated magneto-electric drive synergy enhances the impedance matching. Multiple heterogeneous interfaces enhance the depletion efficiency of electromagnetic waves (EMWs) within the material. The samples designed have achieved an effective absorption bandwidth (EAB) value of 6.26 GHz and a maximum reflection loss value of −22 dB at a low thickness of 1.7 mm. Meanwhile, due to the electrochemical protection reaction of anode of metal and the passivation effect of barrier by PDA. The prepared coatings maintained favorable corrosion resistance in 240 h of continuous salt spray environment. Moreover, after the 240 h salt spray experiment, the sample realized the EAB value of 4.77 GHz at a thickness of 1.7 mm. This work breaks new ground for the development of absorbing and anti-corrosion integrated materials.
研究领域:
材料科学
·
电磁学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Xiongzhang Liu,Hui Luo,Jiaji Yang,Xian Wang,Zewen Qu,Heng Luo,Rongzhou Gong
TiB 2 –MgO microwave absorbing materials with TiB 2 as the absorber, MgO as the matrix are prepared by spark plasma sintering (SPS). The influences of commercial TiB 2 content and sintering temperature on dielectric and microwave absorption (MA) properties are studied. Besides, to optimize the MA performance, TiB 2 –MgO composite containing TiB 2 synthesized by the carbonthermal process is prepared. Meanwhile, its high-temperature dielectric and MA properties are investigated. Indeed, both the commercial TiB 2 content and sintering temperature play key roles in dielectric and MA properties, as they reaching 8 wt% and 1400 °C, the composite presents the optimal MA performance. For composite with synthetic TiB 2 as the absorber, the temperature has a positive effect on dielectric and MA properties. The enhanced high-temperature MA properties with minimum reflection loss ( RL min ) of −52.11 dB at 1.6 mm under 500 °C and effective absorption bandwidth (EAB, RL < −5 dB) of 4.2 GHz at 1.4–1.6 mm under 800 °C are obtained, which is mainly attributed to the temperature-dependent interfacial polarization compared to the temperature-insensitive conductivity. The excellent mechanical properties (flexural strength = 212.48 MPa), thin absorbing layer (d < 2 mm), enhanced thermal stability and high-temperature MA properties indicate that the TiB 2 –MgO composites can be considered as new candidates for high-temperature structure microwave absorbing materials.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Shilu Luo,Qi Li,Yajun Xue,Bing Zhou,Yuezhan Feng,Chuntai Liu
Ultrathin MXene composite films , with their flexibility, metal-level conductivity, and multifunction compatibility, are an ideal choice for electromagnetic interference (EMI) shielding materials in future developments. Nonetheless, the dilemma between electrical conductivity and robustness in these composite films remains a challenge. Herein, an ammonium polyphosphate (APP) assisted interfacial multiple cross-linking strategy, achieved via simple solution blending and filtration, was employed to reinforce and toughen the “brick–mortar” layered MXene/bacterial cellulose (MBCA) films without compromising their conductivity and EMI shielding ability. The introduction of a small amount of APP leads to multiple interfacial interactions between MXene and bacterial cellulose, resulting in significant enhancements in mechanical strength (360.8 MPa), Young's modulus (2.8 GPa), fracture strain (17.3%), and toughness (34.1 MJ/m 3 ). Concurrently, the MBCA film displayed satisfactory conductivity values of 306.7 S/cm and an EMI SE value of 41 dB upon optimizing the MXene content. Additionally, the MBCA film demonstrated a consistent, rapid-response photothermal conversion capability, achieving a photothermal conversion temperature of 97 °C under a light intensity of 200 mW/m 2 . Consequently, this tough and multifunctional EMI shielding film holds substantial promise for protecting electronic equipment.
研究领域:
材料科学
·
生物医学工程
✓ 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）