Nano-Micro Letters
·
2019
·Vol. 11
·期 1
·1-15
·
IF 9.043
Zhang Deqing,Liu Tingting,Cheng Junye,Cao Qi,Zheng Guangping,Liang Shuang,Wang Hao,Cao Mao-Sheng
Two-dimensional (2D) nanomaterials are categorized as a new class of microwave absorption (MA) materials owing to their high specific surface area and peculiar electronic properties. In this study, 2D WS 2 –reduced graphene oxide (WS 2 –rGO) heterostructure nanosheets were synthesized via a facile hydrothermal process; moreover, their dielectric and MA properties were reported for the first time. Remarkably, the maximum reflection loss (RL) of the sample–wax composites containing 40 wt% WS 2 –rGO was − 41.5 dB at a thickness of 2.7 mm; furthermore, the bandwidth where RL < − 10 dB can reach up to 13.62 GHz (4.38–18 GHz). Synergistic mechanisms derived from the interfacial dielectric coupling and multiple-interface scattering after hybridization of WS 2 with rGO were discussed to explain the drastically enhanced microwave absorption performance. The results indicate these lightweight WS 2 –rGO nanosheets to be potential materials for practical electromagnetic wave-absorbing applications.
研究领域:
材料科学
·
电磁学
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DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Mei Yang,Shilin Zhang,Tian Wang,Beibei Shi,Jingyan Liu,Yili Tang,Zonglin Xu,Muhammad Tariq Sarwar,Aidong Tang,Huaming Yang
The key to the development of non-noble metal catalysts with high activity and durability for the hydrogen evolution reaction (HER) in alkaline water/seawater conditions is to construct multi-interface electrocatalysts. Herein, the CoMoO4 nanorod arrays grown on foam nickel (NF) was first prepared by a hydrothermal method. Then, Ni(PO3)2-CoP4 with multi-interface was prepared by soaking the nanorod arrays into a nickel nitrate solution and then by phosphating via chemical vapor deposition. The Ni(PO3)2-CoP4/CoMoO4/NF electrode exhibits superior HER electrocatalytic performance under alkaline conditions with an ultralow overpotential of 79 mV@100 mA·cm–2, which outperforms other reported earth–abundant transition-metal phosphide catalysts. It also maintains long-term durability in alkaline water/seawater electrolytes in 60 h at a constant 100 mA·cm–2. In the alkaline natural seawater electrolyte, Ni(PO3)2-CoP4/CoMoO4/NF (−)||NiFe LDH (+) pair has good long-term stability of 60 h for the voltage of only 1.60 V@100 mA·cm–2. The excellent performance is attributed to the plentiful active sites and the rapid electron-transfer rate. This work affords a new path to rationalize the design strategy of low-cost and multi-interface 3D catalysts for alkaline water/seawater electrolysis.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Ning Li,Rui Li,Jianhui Zhao,Lan Liang,Yang Yu,Lingchao Kong,Guanyi Chen,Beibei Yan
Interfacial effect played a critical role in catalytic reactions for environmental remediation. An innovative Mn 3 O 4 @ZnO/TiO 2 heterojunction with multi-interface structure was precisely-designed for the first time through alternate growth of ZnO and TiO 2 nanolayers on Mn 3 O 4 surface by atomic layer deposition. Further, the catalytic property of Mn 3 O 4 @ZnO/TiO 2 was evaluated through denitrification from water under ultrasonic-assisted visible light photocatalysis, which achieved 98.6% NO 3 − -N reduction and 98.8% N 2 selectivity within 120 min. Besides, the Mn 3 O 4 @ZnO/TiO 2 exhibited stability and recyclability during the denitrification process. Mechanism insight revealed significant contributions of the novel multi-interface type II heterojunction. More charge transfer routes and possible reaction interfaces were provided for selective denitrification. Equally important, the synergy between visible light and ultrasound promoted the generation of active radicals. The radical trapping experiment proved the dominate role of e − and CO 2 ∙ - in the denitrification process. Overall, the Mn 3 O 4 @ZnO/TiO 2 appeared to be a promising candidate to remediate aquatic contaminants in ultrasonic-assisted photocatalytic system. Also, this study highlighted an attractive approach for controllable fabrication of multi-interface heterojunctions.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Qing Zeng,Mengxi Han,Jianlin Zhou,Yongjin Liu,Ruizheng Zhao,Xinhua Hu,Bo You,Limin Wu
Designing complex multi-interface architectures on photothermal materials—to enhance internal light reflection and absorption while reducing surface reflection—has proven to be an effective strategy for improving light-to-heat conversion efficiency. In this study, a colloid-like thin film with superior photothermal performance was fabricated via a facile method by incorporating γ-glycidoxypropyltrimethoxysilane (GPTS)-modified MXene (S-MXene) into a phenolic resin matrix. The phenolic resin underwent in situ crosslinking with the GPTS modifier grafted on the MXene surface and was rapidly cured under heat, allowing the nanosheets to retain their colloidal dispersion state even within the solidified matrix. In this system, the uniformly dispersed and well-exfoliated S-MXene nanosheets fully exploited their inherently large specific surface area, forming abundant interfaces with the resin matrix. These interfaces facilitated efficient light capture and enhanced light-to-heat conversion via internal multi-interface reflection. Colloid-like films containing 5 wt% of the modified filler and having ∼30 μm thickness exhibited high light-to-heat conversion efficiency (94%) along with favorable optical properties, including negligible transmittance, reflectance below 5%, and imaging clarity comparable to that of colloidal dispersions. Additionally, effective medium theory calculations confirmed that the films exhibited light absorption behavior similar to that of homogeneous or colloidal systems. Furthermore, the encapsulating resin markedly suppressed MXene oxidation, enabling the films to retain over 80% of their initial temperature rise under solar irradiation after six months of ambient exposure. This work presents a scalable and robust strategy for fabricating colloid-like MXene–resin composite films with promising applications in anti-glare coatings, thermal insulation, wearable electronics, and optoelectronic devices.
研究领域:
材料科学
·
纳米复合材料
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光热功能材料
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高分子化学
·
表面与界面科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2013
·
IF 2.224
Baoping Zhang,Chunxiang Lu,Hai Li
ZnO/graphene nanocomposite has been prepared by aqueous-solution and calcinations route. The electromagnetic (EM) characteristics of ZnO/graphene nanocomposite were studied by Agilent E8362B PNA vector network analyzer at 2–18 GHz. The reflection loss (RL) of ZnO/graphene nanocomposite was calculated from the EM characteristics. A RL exceeding −10 dB was obtained in the frequency range of 3.2–17 GHz with an absorber thickness of 1.5–5 mm. An optimal RL of −52 dB was found at 5.2 GHz with an absorber thickness of 3.5 mm. The excellent microwave absorption properties were a consequence of proper EM match in the microstructure as well as multi-interface polarization mechanisms.
研究领域:
材料科学
·
电磁学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Liang Gao,Qianqian Xiao,Chengxi Wang,Jing Sun,Funing Zhang,Xuan Wang
In the realm of advanced electrical equipment and systems, polymer nanocomposites possess significant application value due to their excellent dielectric properties. Metal@ceramic fillers with a core-shell structure can enhance the dielectric constant ( ε ′) of polymer nanocomposites; however, their application is limited by the high dielectric loss (tan δ ). A magnetic field tailoring strategy is introduced in this article to significantly improve the dielectric properties of poly(vinylidene fluoride) (PVDF) composites. Magnetic CaCu 3 Ti 4 O 12 –Ni (CN) composite fibers are formed by embedding Ni nanoparticles within CaCu 3 Ti 4 O 12 (CCTO) fibers. Furthermore, the CN fibers are horizontally orientated in the PVDF matrix by tailoring the optimal magnetic field to 1.0 T–150 ℃. This results in a significant increase in the ε ′ of 25, which is 92 % and 194 % higher than that of a CN fiber without magnetic field treatment and pure PVDF, respectively, while maintaining a low tan δ of 0.08. Experimental and simulation results indicate that the magnetic orientation tailoring enhances the multi-interface polarization, especially the inner interfacial polarization (△ P in ) at the CCTO/Ni interfaces, dominantly improving dielectric performance, as evidenced by the high interfacial polarization strength, △ ε 2 ∼ 141.51, the low activation energy, E a ∼ 0.81 eV, and the large △ P in ∼ 1.06×10 4 μC/m 2 . This magnetic orientation tailoring strategy offers a new paradigm and significant guidance for the development of polymer dielectrics with exceptional dielectric properties.
研究领域:
材料科学
·
电气工程
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DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2024
·Vol. 31
·期 4
·812-824
·
IF 5.6
Yang Xuanqi,Wang Honghan,Chen Jing,An Qingda,Xiao Zuoyi,Hao Jingai,Zhai Shangru,Sheng Junye
Electromagnetic wave (EMW)-absorbing materials have considerable capacity in the military field and the prevention of EMW radiation from harming human health. However, obtaining lightweight, high-performance, and broadband EMW-absorbing material remains an overwhelming challenge. Creating dielectric/magnetic composites with customized structures is a strategy with great promise for the development of high-performance EMW-absorbing materials. Using layered double hydroxides as the precursors of bimetallic alloys and combining them with porous biomass-derived carbon materials is a potential way for constructing multi-interface heterostructures as efficient EMW-absorbing materials because they have synergistic losses, low costs, abundant resources, and light weights. Here, FeNi alloy nanosheet array/ Lycopodium spore-derived carbon (FeNi/LSC) was prepared through a simple hydrothermal and carbonization method. FeNi/LSC presents ideal EMW-absorbing performance by benefiting from the FeNi alloy nanosheet array, sponge-like structure, capability for impedance matching, and improved dielectric/magnetic losses. As expected, FeNi/LSC exhibited the minimum reflection loss of −58.3 dB at 1.5 mm with 20wt% filler content and a widely effective absorption bandwidth of 4.92 GHz. FeNi/LSC composites with effective EMW-absorbing performance provide new insights into the customization of biomass-derived composites as high-performance and lightweight broadband EMW-absorbing materials.
研究领域:
材料科学
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电磁学
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产品关联
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 16
·2105738
·
IF 15.153
Man Yuan,Chenyang Meng,Ang Li,Bin Cao,Yue Dong,Dengke Wang,Xuewei Liu,Xiaohong Chen,Huaihe Song
Fast charging rate and large energy storage are key requirements for lithium-ion batteries (LIBs) in electric vehicles. Developing electrode materials with high volumetric and gravimetric capacity that could be operated at a high rate is the most challenging problem. In this work, a general multi-interface strategy toward densified carbon materials with enhanced comprehensive electrochemical performance for Li/Na-ion batteries is proposed. The mixture of graphene oxide and sucrose solution is sprayed into a water/oil system and furtherly carbonized to get graphene/hard carbon spheres (GHSs). In this material, abundant ingenious internal interfaces between the crystalline graphene and the carbon matrix are created inside the hard carbon spheres. The constructed interfaces can not only work as a pathway for the escape of volatile gas generated during sucrose pyrolysis to prevent the formation of abundant pores, which leads high packing density of 0.910 g cm –3 and low surface area of 13.3 m 2 g –1 , but can also provide a conductive “highway” for ions and electrons. When used as the anode material for both LIBs and sodium-ion batteries (SIBs), the GHS shows the high gravimetric/volumetric reversible capacities, high-rate performance, and low temperature properties simultaneously, implying the great potential application in practical LIBs and SIBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Meng Zhou,Wenjie Zhao,Qiming Yan,Heqing Fu
The design of multiple heterogeneous interfaces has been proven to be a successful strategy to boost microwave absorption performance. However, the synthesis of magnetic microwave absorber with wide absorption bandwidth is still a challenge. In this work, ZnO@MWCNTs@NiFe 2 O 4 nanocomposites are fabricated by introducing ZnO on the surface of MWCNTs and subsequent anchoring of NiFe 2 O 4 . The minimum reflection loss can reach − 45.5 dB at 12.4 GHz with a thickness of 2 mm, while the broadest efficient absorption bandwidth is above 6.4 GHz at only a 3 mm thickness. Furthermore, the microwave absorption performance of ternary nanocomposites can be optimized by tunable the content of ZnO and NiFe 2 O 4 , whose microwave absorption mechanism depends on the synergy of dielectric loss and magnetic loss. The formation of 3D conductive network and heterogeneous interfaces contributes to the enhancement of conductive loss and polarization, respectively. The experimental results demonstrated that the ZnO@MWCNTs@NiFe 2 O 4 nanocomposites can provide a guide for microwave absorbers with wide absorption bandwidth in the future.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yu-Xin Liao,Qi-Rui Zhang,Zhi-Lin Zheng,Jing Shao,Liang Ma,Ping-Li Qin,Xiang-Bai Chen
The design of functional materials with efficient light absorption and charge separation is crucial for photocatalytic energy conversion. Herein, a plasmonic TiN/TiO 2 /ReS 2 ternary hybrid is prepared, which exhibits exceptional photocatalytic activity caused by the plasmon-mediated light absorption and multi-interfacial charge separation. The ternary hybrids were synthesized by heating TiN, Re, and S sources at high pressure and temperature. The TiN was partially oxidized to form TiN/TiO 2 hybrids, which were then embedded in ReS 2 nanoflowers through Ti-S bonds, creating a 3D flower-like structure with multiple interfaces. The plasmon resonance of TiN and the bandgap excitations of ReS 2 and TiO 2 endow the hybrids with efficient light absorption in UV–VIS-NIR region. Additionally, the novel embedded structure and the multiple interfaces between TiN, TiO 2 , and ReS 2 facilitate the formation of built-in electric fields and multi-channel charge transfer, which efficiently quicken photoinduced carriers’ migration and hot electron injection. Consequently, the TiN/TiO 2 /ReS 2 hybrids demonstrate a high-efficiency photocatalytic hydrogen generation rate, which is 12.1 times that of commercial P25. Notably, the hybrids also exhibit high photocatalytic activity under near-infrared light irradiation. This study offers innovative insights into the design of photocatalysts and suggests that the prepared materials could be utilized in solar-driven energy conversion applications.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Zheng Jiang,Shengqiang Cui,Shan Wang,Yajing Wang,Xinxin Wang,Guangmeng You,Xueke Gu,Pengli Si,Gui Yang,Chao Wang
Enhancing phonon scattering has emerged as an effective strategy for suppressing lattice thermal conductivity (κL), thereby improving the performance of bulk thermoelectric materials. Compared with other strategies, the primary purpose of introducing more grain boundaries is to enhance the scattering of mid to low-frequency phonons, consequently reducing the κL at the near-room temperature, which proves advantageous for enhancing the thermoelectric properties of Bismuth telluride-based materials. In this study, MnS/MoS2 as a heterojunction compound was incorporated into a Bi2Te2.7Se0.3 matrix, resulting in the formation of a unique (Bi2Te2.7Se0.3 → MnS → MoS2) three grain boundary interface structure, which significantly enhanced phonon scattering. Additionally, the MnSe secondary phase was observed and confirmed through both X-ray diffraction (XRD) and transmission electron microscopy (TEM). The introduction of 0.3% MnS/MoS2 leads to a reduction in the κL from 0.58 W m−1 K−1 to 0.41 W m−1 K−1 at 300 K. Simultaneously, the synergistic optimization of electrical properties results in a PF of 33 µW cm−1 K−2 at 300 K. Finally, a high ZT value ∼1.17 (375 K) and an average ZTave ∼ 1.08 (300–500 K) were achieved for Bi2Te2.7Se0.3–0.3% MnS/MoS2, which was enhanced 54% and 57% compared with those of the Bi2Te2.7Se0.3 alloy, respectively.
研究领域:
材料科学
·
凝聚态物理
·
功能材料
·
热电转换
·
纳米复合材料
✓ 已验证
产品关联
DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2025
·
IF 4.6
Wenjuan Zhang,Qiaohong Zhang,Xiangyue Yang,Mengyu Ran,Yezhi Ding,Peiqing La
Conventional homogeneous catalysts for photo-Fenton reactions suffer from inherent drawbacks, including difficult recovery, poor stability, and rate-limiting steps, which significantly restrict their practical application. To overcome these challenges, a novel photo-Fenton catalytic support, MXene–porous polydopamine (MPP), was fabricated via an interfacial co-assembly strategy. Subsequently, nano zero-valent iron (Fe) was anchored onto the MPP framework to construct a magnetic MXene–porous polydopamine (Fe/MPP) catalyst. The unique multi-interfacial porous structure of Fe/MPP facilitates efficient mass and electron transport, while the synergistic effects of Fe redox cycling and phenol–quinone conversion under light irradiation enhance the Fe 3+ /Fe 2+ regeneration process. As a result, Fe/MPP achieved outstanding photo-Fenton degradation performance, removing 99.89 % of methylene blue (MB, 4 g/L) within 30 min, surpassing most previously reported homogeneous catalysts. Moreover, Fe/MPP exhibits excellent reusability, maintaining over 53 % degradation efficiency after ten consecutive cycles. These results demonstrate that Fe/MPP exhibits high photo-Fenton activity and cycling stability, showing promising potential for practical wastewater treatment applications.
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产品关联
DOI
高影响因子
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