COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Dongxu Huang,Mingqi Huang,Deliang Sun,Bincan Liu,Rui Xuan,Jinshan Liu,Rong Sun,Jinhui Li,Guoping Zhang,Daquan Yu
The metallization of glass with high density and fine spacing possesses promising application in advanced package in 5 G. However, the adhesion strength between the copper and the smooth glass is still limited. In this paper, a feasible method is developed to prepare ZnO coating on the glass surface which served as an adhesive layer to provide a good anchors of copper layer by electroless copper plating. The results proved the adhesion strength of the copper layer is as high as 5B by grid adhesion test. Furthermore, diethoxy-methyl-(3, 3, 3-trifluoro-propyl)-silane was used to create an optional hydrophobic surface to accomplish a selective electroless copper plating pattern. The electroless copper plating is non-toxic, convenient, low economic cost and reliable and it is expected to realize promising application in system-in-package in the future.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2023
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IF 4.6
Li Zheng,Song Luo,Sijie Yang
Carbon steel is a widely used metallic material. It is prone to corrosion. In this study, we designed and fabricated a superhydrophobic layer with corrosion resistance for protection of carbon steel substrate. Multiple layers were formed that acted as barriers to protect the substrate from corrosion. This superhydrophobic layer reduced the contact area between the substrate and the corrosive medium owing to the superhydrophobicity. The experimental results showed that a copper layer uniformly covered the carbon steel substrate, and the outer surface of the copper layer was converted into copper oxide , which had a multi-scale structure. The Cu/CuO double layer was modified with stearic acid (SA) to form a Cu/CuO@SA superhydrophobic layer. The superhydrophobic layer exhibited a high water contact angle (up to 160°) and a low sliding angle (<3°). The superhydrophobic layer also exhibited repulsive effect to salt, acidic and alkaline solutions. Atmospheric stability test and UV irradiation test were conducted and the results indicated that the superhydrophobic layer was stable throughout the test period. The corrosion potential of the superhydrophobic sample was −0.18 V and the corrosion current density was 7.72 × 10 −7 A cm −2 , which was one order of magnitude lower than that of the carbon steel substrate. These results indicate that the superhydrophobic sample had a low corrosion tendency and corrosion rate. The polarization resistance and impedance modulus of the superhydrophobic sample were two orders of magnitude higher than the bare steel sample, indicating corrosion resistance and effective protection to the carbon steel substrate.
研究领域:
材料科学
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腐蚀与防护
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
·
IF 16.744
Fangxu Dai,Zhiying Guo,Weijie Zhao,Zhenjiang Li,Jun Xing,Lei Wang
In heterostructure photocatalyst, metal–support interaction plays a key role in determining the photocatalytic reaction, which is rarely studied due to its complicated mechanism involving interfacial bonding, internal electric field, and charge transfer etc. Here we report an interfacial engineering to promote the photocatalytic hydrogen evolution of the model photocatalyst Pt/TiO 2 . A stable oxidized Cu + layer was inserted as an interlayer between Pt nanoparticles and TiO 2 support, which boosts the efficiency of photoinduced charge extraction and regulates the surface charge state of the photocatalyst. The synthesized photocatalyst Pt/Cu/TiO 2 exhibits highly efficient hydrogen evolution of 1 L g −1 h −1 , which is 63% higher than the photocatalyst Pt/TiO 2 . This charge extraction strategy is also evidenced on photocatalysts Pt/(Rh, Co or Ni)/TiO 2 . Our findings not only provide insight into interfacial interaction in photocatalyst, but also offer effective guidelines for the design and fabrication of high-performance photocatalysts.
研究领域:
材料科学
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化学工程
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能源科学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
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IF 4.9
Jifan Yang,Yuxuan Yang,Fei Long,Xuan Li,Fei Sun,Chenhao Qian,Xinyu Yan,Tong Zhou,Lei Liu
AlN ceramic is the potential substrate for high-performance printed circuit board with the rapid development of electronic industry due to the superior thermal and electrical property, while its metallization still faces the issues of thermal stress and weak interface bonding with existing technology. Herein, a convenient design is proposed to achieve the Cu deposition on the surface of AlN substrate, the TiO 2 containing photocatalytic intermediate layer is prefabricated on AlN substrate with silica and titania mixed sol, and induces the autocatalytic deposition of electroless copper plating under ultraviolet irradiation. Compared with Cu deposition with Pd activation treatment, the bonding strength between Cu layer and AlN substrate is significantly enhanced with the intermediate layer, this is ascribed to the formed nano-porous microstructure of the sintered intermediate layer facilitating the penetration of plating bath, and the mechanical anchoring effect derived from the interlocking microstructure between Cu layer and intermediate layer contributes to the improved bonding strength. This new method realizes the metallization of AlN ceramic with high interfacial bonding strength and low cost compared with the traditional joining technology, and provides a potential reference for the surface metallization of inert material.
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
MICROPOROUS AND MESOPOROUS MATERIALS
·
2020
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IF 4.551
Summaira Saghir,Enfa Fu,Zhenggang Xiao
With industrialization, wastewater treatment technologies have drawn huge attention and among different approaches the adsorption process is very attractive because of its simple design and low operational cost. In this paper, CoCu-layered double hydroxide (LDH) was prepared having huge surface area with a large pore diameter, which is significant for obtaining excellent adsorption properties for methyl orange (MO). After detailed adsorption kinetics analysis, the results followed pseudo second order (PSO) kinetic model having good correlation coefficient (R 2 ) values. However, adsorption isotherms data matched well with the Freundlich isotherm kinetics model. Furthermore, CoCu-LDH exhibits significant adsorption capacity even in the fifth cycle of MO adsorption, indicating that the CoCu-LDH is competitive and cost-effective adsorbent for anionic dyes from industrial wastewater.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Xiaoxiang Cheng,Yi Chai,Yinuo Liu,Yan Jin,Lijie Zhang,Feiyong Chen,Daoji Wu,Xinsheng Luo
Dynamic membranes (DMs) can effectively mitigate ultrafiltration membrane fouling by forming a dynamic barrier layer. However, DMs still face challenges in balancing separation efficiency, antifouling capacity, and regeneration frequency during practical applications. Herein, we propose a novel catalytic DM synergistically integrated with sepiolite (SEP) and cobalt-copper layered double hydroxide (Co-Cu-LDH). The prepared membrane exhibited a three-dimensional (3D) fibrous SEP network integrated within the substrate membrane, embedding with a Co-Cu-LDH catalyst layer. This structure significantly enhanced peroxymonosulfate (PMS) activation, leading to the generation of hydroxyl radical, superoxide radical, sulfate radical and singlet oxygen species. The LDH-SEP DM/PMS system achieved superior performance in treating secondary effluent, removing 92.3 % of dissolved organic carbon. Due to the synergistic effect of foulant interception and catalytic oxidation, the LDH-SEP DM exhibited excellent antifouling performance. Following three cycles filtration of secondary effluent, the membrane flux dropped by only 10 %, with the flux recovery rate of 99 %. Membrane fouling mechanism has also been changed, and the formation of cake filtration was significantly delayed. Overall, this work not only advances the mechanistic understanding of PMS activation via Co-Cu-LDH, but also provides a scalable strategy for designing multifunctional membranes tailored for high-efficiency, low-maintenance water purification systems.
研究领域:
环境工程
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材料科学
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水处理技术
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催化化学
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膜分离技术
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产品关联
DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 7
·5277-5285
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IF 4.6
Dongfeng Shi,Xiyin Mao,Min Fei,Cong Liang,Yuyang Luo,Zhidan Xu,Liyong Hu
Antibiotics are frequently detected in aquatic environments, posing potential risks to ecological systems and human health. Among the various treatment strategies, advanced oxidation processes (AOPs) utilizing peroxymonosulfate (PMS) activation stand out due to their ease of activation and potent oxidative capabilities. This study synthesized manganese–iron–copper layered double hydroxides coupled with graphene oxide (MnFeCu-LDH/GO) using eco-friendly transition metals. Optimal conditions of pH 7, 298 K, and 0.2 g L−1 dosage of both catalyst and PMS achieved 98% CTC removal in 30 minutes. The composite was employed for the degradation of chlortetracycline (CTC) through PMS activation. Reactive oxygen species (ROS), including 1O2, ˙OH, and SO4˙−, were identified and quantified through trapping and quenching experiments, and 1O2 was identified, to be the most significant contributor to degradation. The catalyst demonstrated excellent reusability, maintaining high degradation efficiency after five cycles. These findings suggest that MnFeCu-LDH/GO-activated PMS is a promising method for mitigating antibiotic contamination in water.
研究领域:
环境科学
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化学工程
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水处理技术
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产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
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2022
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IF 5.436
Hui Yang,Xiangwei Liu,Kang Qin,Qijing Bu,Qingyun Liu
Designing durable, high-active, and low-cost noble-metal-free photoelectrocatalysts for methanol electrooxidation is highly demanded but remains a challenge. Herein, the photoelectrocatalytic activity of cobalt–copper layer double hydroxide (CoCu-LDH) for methanol oxidation reaction (MOR) in the alkaline media under light was remarkably enhanced by cerium (Ce) doping and further by 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin (TCPP) modification. TCPP/Ce–CoCu-LDH exhibits a remarkable mass activity of 1788.2 mA mg–1 in 1 mol L–1 KOH with 1 mol L–1 methanol under light, which is 2.3 and 1.8 times higher than that of CoCu-LDH (782.2 mA mg–1) and Ce–CoCu-LDH (987.4 mA mg–1). The UV–vis diffuse reflectance spectra and photoluminescence emission spectra reveal that TCPP/Ce–CoCu-LDH can effectively utilize the visible light and inhibit the electron–hole pairs’ recombination because of the introduction of porphyrin. Furthermore, more active sites and the greater electrical conductivity of TCPP/Ce–CoCu-LDH also contributed to the high photoelectrocatalytic activity. Thus, TCPP/Ce–CoCu-LDH can be used as a low-cost alternative for Pt-based catalyst toward MOR.
研究领域:
材料科学
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电化学
·
能源转换与存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Zhaoyang Zheng,Dong Han,Tianyu Zhang,An Du,Ruina Ma,Yongzhe Fan,Xue Zhao,Xiaoming Cao
The Co-depletion zone in WC–Co brazed joints is the main zone of joint failure, so it is crucial to explore novel processes to inhibit the Co-depletion zone and enhance the joint shear strength. In this study, a composite process of pre-plating Cu on the WC–Co surface + brazing was designed. Co-depletion zone reduces from 6 μm to 1 μm due to the Cu plating. Meanwhile, the formation of a plating fusion zone in the filler layer transforms TiCo with a thickness of 2.5 μm into a small number of TiCo particles. Moreover, the high concentration of Cu atoms in the vicinity of the WC particles at the interface changes the Co-segregation layer in the WC into a Cu-rich layer. The concentration of Cu in the filler layer leading to precipitation of TiCu and Ti 2 Cu particles. Ti 2 Cu particles encapsulated by ductile Ag–Cu–In ternary eutectic contribute to inhibit the cracks propagation. The shear strength of the joints was enhanced by 51.3 % to 295 MPa. The composite process of pre-plating on the base material surface + brazing has positive significance in inhibiting the excessive diffusion of elements from the base materials to the filler layer.
研究领域:
材料科学
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冶金学
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焊接工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2015
·Vol. 3
·期 32
·8329-8335
·
IF 4.696
Jingping Liu,Cheng Yang,Peichao Zou,Rui Yang,Chao Xu,Binghe Xie,Ziyin Lin,Feiyu Kang,Ching Ping Wong
Conventional electronic circuit wiring methods involve subtractive processes such as etching the copper foils, and thus are inefficient and cause serious environmental problems. Printed electronics technology is expected to be more environmentally benign and have lower cost, due to its additive characteristics. In this paper, we present a simple and efficient strategy to fabricate high performance copper metal fine circuits by a galvanic replacement deposition method. Zinc nanoparticles filled epoxy resin paste is printed onto the substrate film as the seed layer; with a subsequent simple galvanic replacement reaction between Zn and Cu2+, we can obtain a conductive Cu layer that can be further thickened by electroplating. The as-prepared circuits show bulk Cu conductivity, excellent flexibility, adhesion strength and pattern resolution. By adjusting the processing parameters, this technology is suitable for various practical applications, such as flexible circuit boards, RFID tags, touch panels, membrane switches, and photovoltaics, making it a promising solution for low-cost and environmentally friendly fabrication for flexible electronic devices.
研究领域:
材料科学
·
电气工程
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纳米技术
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印刷电子
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Yibo Song,Guowu Zhan,Shu-Feng Zhou
Cuproptosis, a newly discovered cell death pathway, has shown great potential in cancer treatment. Herein, near-infrared (NIR) light-driven nanomotors (CuSiO 3 @Au-Pd NMs) are designed for cuproptosis-assisted synergistic therapy with autonomous mobility and improved cellular uptake and tumor penetration. Specifically, the released Cu 2+ ions from CuSiO 3 @Au-Pd NMs can induce the Fenton-like reaction, leading to the generation of hydroxyl radicals (·OH), accompanied by the depletion of glutathione within the MCF-7 cells. Additionally, the designed CuSiO 3 @Au-Pd NMs also exhibit excellent photothermal effects, which can further promote the production of ·OH, resulting in intensified oxidative stress and cellular apoptosis. Moreover, the enhanced tumor permeation efficiency and cellular uptake of CuSiO 3 @Au-Pd NMs via autonomous movement under self-thermophoretic forces are proved using 2D cellular experiments and 3D multicellular tumor spheroids. The resultant intracellular accumulation of Cu 2+ can induce the oligomerization of lipoylated proteins, leading to cuproptosis, along with the mitochondrial dysfunction pathway. More importantly, both in vitro and in vivo experiments show that CuSiO 3 @Au-Pd NMs could penetrate deeply into tumors and exhibit great anticancer efficacy through multimodal therapeutic methods. These findings manifest promising potentials of NIR-powered Cu-based NMs with high maneuverability for future smart and synergistic cancer therapy.
研究领域:
纳米技术
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癌症研究
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生物医学工程
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诊疗学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）