SURFACE AND INTERFACE ANALYSIS
·
2012
·Vol. 45
·期 3
·698-704
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IF 1.18
Junfei Ou,Weihua Hu,Ying Wang,Fajun Wang,Mingshan Xue,Wen Li
A novel bilayer superhydrophobic film was constructed on Cu substrate by a simple multi-step process. First, (3-mercaptopropyl) trimethoxysilane (MPTMS) molecules were self-assembled onto the pre-etched Cu surface via covalent bonding followed by hydrolysis and condensation, then 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane (PFDTS) were grafted onto the resultant hydroxyl terminated surface via the Si-O-Si bonding. The so-prepared sample was defined as Cu-MPTMS-PFDTS. The structure and morphology of the samples were characterized by means of contact angle measurement, X-ray photoelectron spectroscopy and scanning electron microscopy. The corrosion behaviors of the films were evaluated by Tafel plot and electrochemical impedance spectroscopy on an electrochemical work station. The results indicated that the bilayer superhydrophobic film possessed better corrosion protection as compared with the control samples. The superiority of the corrosion protection was mainly ascribed to the following two aspects: the superhydrophobicity and polysiloxane micro-structures of the Cu-MPTMS-PFDTS. Copyright © 2012 John Wiley & Sons, Ltd.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Hong Li,Yanfeng Lu,XinYan Zou,Chunyu Wang,Hongyan Wei
Copper stearate coating was fabricated on a copper substrate through a simple solution immersion method at room temperature. The surface exhibited grass-like structure, which endowed it with superhydrophobicity and the water contact angle was about 152.3°. Electrochemical measurement revealed that this superhydrophobic surface (SHS) showed better corrosion resistance than bare copper surface and the inhibition efficiency of this SHS was about 95.91%. Moreover, the SHS demonstrated the reduction in adhesion between ice and surface, thus allowing for easy removal of ice. This method may provide a simple way to design SHS with corrosion resistance and anti-icing performance on metal surfaces.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Yongquan Qing,Chuanning Yang,Qingqing Zhao,Chuanbo Hu,Changsheng Liu
Multifunctional surfaces are in urgent demand in particular fields. In this work, we report a low-cost preparation of superhydrophobic/superoleophobic surfaces on copper substrate by rapid two-step process. The deposited Zn surface modified by stearic acid showed good superhydrophobicity with a water contact angle of 158.3° and a sliding angle of 4.6°. Interestingly, a remarkable Zn surface with reversible wetting transition between hydrophilicity and superhydrophobicity could be easily realized by the alternation of annealing and modifying. The wetting transition process was rapid and only took 13 min for each cycle, depending mainly on the change of the surface elements. Moreover, the modified-TiO 2 suspension was coated onto the deposited Zn surface to construct a composite surface with micro/nano rough structures, which possessed excellent superamphiphobicity with contact angles of 161.8° and 152° toward water and oil respectively, and showing great mechanical strength and stability. The novel materials exhibit a promising perspective in many applications, such as wettability transition of surfaces, water proof and oil proof.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 35
·期 9
·2209985
·
IF 32.086
Zhimeng Hao,Yufeng Zhang,Zhenkun Hao,Geng Li,Yong Lu,Song Jin,Gaojing Yang,Sihan Zhang,Zhenhua Yan,Qing Zhao,Jun Chen
The ever-growing annual electricity generated from sustainable and intermittent energy such as wind and solar power requires cost effective and reliable electrochemical energy storage. Rechargeable batteries based on multivalent metal anodes such as Zn, Al, and Fe, taking advantage of large-scale production and affordable cost, have emerged as promising candidates. However, the uncontrollable dendrite-like metal deposition on regular substrate caused by disordered metal crystallization usually leads to premature failure of batteries and even safety concerns when the dendrite bridges the electrodes. Here it is reported that a series of metal anodes (Zn, Co, Al, Ni, and Fe) with multiple crystal structures (hexagonal close-packed, face-centered cubic, and body-centered cubic) can achieve dendrite-free and epitaxial deposition on single-crystal Cu(111) substrates enabled by the closest packing crystallography. Moreover, the closest packed facets are aligned horizontally with the substrates, resulting in compact planar construction and excellent chemical stability even at an unprecedented current density of 1 A cm −2 . The full cells under a practical anode-to-cathode capacity ratio of 2.3 show a cycling life span of over 800 cycles with Coulombic efficiency of > 99.9%. The universal approach of regulating metal electrodeposition in this work is expected to boost the development of emerging sustainable energy storage/conversion devices.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Jianing Wang,Haokai Yan,Yuxiang Zhao,Daheng Wu,Haoyong Yang,Xiaodong Yin,Runxiang Tan,Tao Zhang
Copper-based materials are very important for many application fields from marine industry to energy management and electronic devices. For most of these applications, the copper objects require long-term contact to a wet and salty environment, which leads to serious corrosion of copper. In this work, we report a thin graphdiyne layer directly grown on arbitrary shapes of copper objects at mild conditions, which could function as a protective coating for the copper substrates in artificial seawater with corrosion inhibition efficiency of ∼99.75%. To further improve the protective performance of the coating, the graphdiyne layer is fluorinated and followed by infusion with a fluorine-containing lubricant (i.e., perfluoropolyether). As a result, a slippery surface is obtained, which shows enhanced corrosion inhibition efficiency of ∼99.99% as well as excellent antibiofouling properties against microorganisms, such as protein and algae. Finally, the coatings are successfully applied in the protection of a commercial copper radiator from long-term attack of artificial seawater without disturbing its thermal conductivity. These results demonstrate the great potential of graphdiyne-based functional coatings for the protection of copper devices in aggressive environments.
研究领域:
材料科学
·
化学工程
·
海洋科学
✓ 已验证
DOI
PubMed
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Guoqing Wang,Tianqiang Yin,Tao Yang,Jiang Zhao,Yuyan Zhang,Juan Li,Gai Zhao
MoS 2 coatings are essential solid lubricants for aerospace applications, yet their temperature-dependent performance remains incompletely understood. This work systematically investigates the tribological behavior of MoS₂ coatings on copper substrates from 250 to 400 K through integrated experimental and molecular dynamics (MD) approaches. High-precision ball-on-disk tests reveal the friction coefficient and wear rate increase by 42 % and 135 % respectively with rising temperature. Complementary MD simulations employing Stillinger-Weber and EAM potentials demonstrate that elevated temperatures enhance atomic mobility, increasing interfacial von Mises stresses by 30 % and activating new slip mechanisms. Energy analysis confirms thermal effects dominate high-temperature friction behavior. These findings provide atomic-scale insights into the wear mechanisms of MoS₂ coatings under thermal loads, offering fundamental guidance for designing more durable solid lubricants in variable-temperature environments. The combined experimental-simulation methodology establishes a robust framework for studying temperature-dependent tribological phenomena in 2D materials.
研究领域:
材料科学
·
摩擦学
·
计算模拟
✓ 已验证
产品关联
DOI
高影响因子
Small Methods
·
2025
·
IF 9.1
Fengning Liu,Hao An,Qing He,Xuesong Li,Feng Ding
The synthesis of multilayer van der Waals (vdW) film materials has attracted considerable interest in both fundamental and applied research. Recently, methods for synthesizing multilayer graphene films or graphite on single-crystal nickel foils are developed. However, the chemical vapor deposition (CVD) synthesis of thick-layer graphene films or graphite (TLG) on copper substrates remains a significant challenge due to the self-limiting growth phenomenon. In this study, a novel method to grow TLG on copper substrates by controlling the silicon additive is presented. The as-grown TLG exhibits high quality, with controllable thickness from a few layers to tens of nanometers. The growth of TLG films is achieved by the synchronous growth of multilayer graphene islands on a silicide copper surface, which is likely to be in a liquid state according to the Cu-Si phase diagram. On the Cu-Si surface, all graphene layers grow synchronously, circumventing the self-limiting mechanism and the antiwedding cake growth or wedding cake mode of van der Waals material growth. Based on this synchronous growth mode, the thickness of TLG can be precisely controlled, ranging from a few to tens of nanometers. The study provides a facile and scalable way to synthesize high-quality thick vdW films for various applications.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 19
·8845-8853
·
IF 4.682
Shu Ling,Liu Wei,Deng Hong-Bin
Integrating energetic materials with microelectromechanical systems (MEMS) to realize miniaturized energetic chips has shown broad application prospects in micro-spacecraft, micro-satellites, ballistic correction munitions, and smart munitions. In this work, a new type of MEMS compatible Cu/ICM-101 energetic film was successfully fabricated on copper substrates by in-situ electrochemical synthesis, the morphology and ignition property of which can be effectively controlled by adjusting the voltage and electrochemical deposition time. The morphology, composition, thermal properties, and ignition performance of as-prepared Cu/ICM-101 films were characterized by scanning electron microscopy, X-ray diffraction, differential scanning calorimetry, and pulsed laser. The results show that the as-prepared Cu/ICM-101 films possesses nano porous framework structure with an exothermic heat of 1800.9 J·g −1 and a thermal decomposition peak temperature of 256.4 °C. In addition, the flame height and ignition duration of which reach 10 mm and 300 μs, respectively. This work provides a reference for the integration and application of energetic materials in MEMS systems.
研究领域:
材料科学
·
微机电系统
·
能量材料
✓ 已验证
DOI
高影响因子
NANO
·
2015
·
IF 1.09
Hongbin Chen,Wangmiao Fu,Xiang Yu,Yi Zhu,Hui Meng,Jinpeng Tang,Yuanming Zhang
A facile one-step method was developed for the first time to fabricate BiOCl film on Cu substrate by simply dipping the Cu substrate in the mixed solution containing HCl, glycol, H 2 O 2 and BiCl 3 . This method shows the advantages of a simple technique, uniform and controllable morphology, as well as easy mass production. The absorption capacity of BiOCl film was investigated by adsorption of Rhodamine B and Congo red (CR) and their maximum adsorption capacities were 1667 mg g − 1 and 1429 mg g − 1 , respectively. The negative values of free energy and the positive values of enthalpy suggested that the adsorption were spontaneous and endothermic, respectively. Moreover, both adsorptions were matched with the pseudo-second-order equation. This film could be reused and the recycle rates for Rhodamine B and CR were still about 95% and 75% after five cycles, respectively. The adsorption mechanism revealed that hydrogen bond mainly accounted for the adsorption of dyes.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Yunxiao Wan,Mojing Chen,Wei Liu,XiXun Shen,Yulin Min,Qunjie Xu
In this paper, a novel method combining etching and hydrothermal treatment was used to design the superhydrophobic surface on the copper substrates. The contact angle of the superhydrophobic surface was 157.7 ± 1°. The superhydrophobic surface showed the corrosion inhibition efficiency of 99.81% in 3.5 wt% NaCl aqueous solution. Besides, the superhydrophobic surface showed a good stability in simulated seawater and humid air. In addition, the formation mechanism of copper superhydrophobic surface was analyzed based on the results of SEM, XRD and XPS.
研究领域:
材料科学
·
腐蚀与防护
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Chemistry
·
2022
·
IF 7.613
S. Zhang,Q. Yang,T. Wang,S. Li,X. Lv,J. Su,J. Chen,S. Ni,Y. Lai,J. Zhan
Among the various existing silver nanostructures , porous silver nanostructures have garnered extensive attention because of their high specific surface area, abundant active sites, and high mass transfer rate. Herein, we report a facile, robust, and easy-to-scale-up strategy for the in-situ generation of porous silver on a copper substrate by a galvanic replacement reaction, in which 2-chlorobenzoic acid and chloride ions were used as the regulator and etching reagent to guide the galvanic replacement reaction between copper and silver ions . Porous silver with high porosity, uniform distribution, and excellent performance can be synthesized on various copper substrates in only 5 min using this method. Copper can be used as a substrate to support the newly generated porous silver in situ, effectively avoiding the structural damage and performance loss caused by the process of transferring porous silver to carriers. Moreover, the type of copper substrate supporting the silver nanostructure can be replaced on demand with different substrates such as copper foil or copper foam. The as-prepared porous silver on copper foil and copper foam showed excellent catalytic activity in static and fluidized catalysis. This proposed strategy shows high portability onto various copper substrates, even on copper foam, which enables on-demand fabrication of porous silver nanostructures for multiple applications.
研究领域:
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE IONICS
·
2017
·
IF 2.354
Feng Zhang,Tingting Zhang,Xiaoqin Zou,Xiaoqiang Liang,Guangshan Zhu,Fengyu Qu
It is a big challenge to construct proton-conductive metal organic framework (MOF) films for successful utilization of MOF materials in proton-conducting devices. Herein, we propose an electrochemical strategy for the preparation of highly porous NENU-3 films on the conductive copper substrates . The Keggin-type heteropolyacid of phosphotungstic acid (PTA) as the molecular clusters is integrated into Cu 3 (BTC) 2 cavities by the one-step electrochemical approach. The PTA plays a dual role of guest molecules in the cages as well as a strong electrolyte in the synthesis solution. Further, as-prepared NENU-3 films exhibit a fascinating proton conductivity under ~ 97% RH and at 24 °C, possibly originating from the Keggin PTA clusters, as proton carriers and the hydrophilic framework of Cu 2 (BTC) 3 . This study may offer a new strategy to assemble the proton-conductive MOF films, and the good combination of heteropolyacids and MOF host materials presents a promising platform for expanding the applications of MOFs in electrochemical devices .
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）