CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Peng Zhou,ZhengYu Zhu,Wei She
Superhydrophobic cement-based materials are promising candidates to alleviate the performance deterioration of concrete constructions caused by water penetration. However, the weak mechanical performance of superhydrophobic surfaces, and severe reduction in compressive strength due to bulk modification, present significant challenges for the application of superhydrophobic cement-based materials. In this work, a superhydrophobic mortar (S-mortar) was prepared using a facile and economical method by surface micro-nano roughness construction and matrix silane modification, and nano-silica was introduced to compensate for the strength loss. The obtained S-mortar exhibits superb surface mechanical durability and chemical stability, no significant decrease in superhydrophobic property after sandpaper rubbing, knife scratches, and exposure to extreme temperatures, while even new surfaces exposed by cutting and powders obtained by grinding possess excellent water repellency. Furthermore, the superhydrophobicity endows the S-mortar with self-cleaning, anti-fouling, anti-icing, anti-freezing, and anti-corrosion properties. This approach creates a balance between superhydrophobic property and mechanical performance, broadening application prospects of superhydrophobic cement-based materials.
研究领域:
材料科学
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建筑工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2020
·
IF 8.758
Stephan Handschuh-Wang,Tao Wang,Lifei Zhu,Yang Xu,Lei Huang,Tiansheng Gan,Yongbing Tang,Xuechang Zhou
Gallium-based liquid metals (GLMs) exist as atypical liquid-phase metals at and near room temperature while being electrically and thermally conductive, enabling copious applications in soft electronics and thermal management systems. Yet, solid metals are affected by interfacing with GLMs, resulting in liquid metal embrittlement and device failure. To avert this issue, mechanically durable and electrically tunable diffusion barriers for long-term reliable liquid metal–solid metal interfacing based on the deposition of various diamond coatings are designed and synthesized, as they feature high chemical inertness and extraordinary mechanical resistance. The diamond coatings show superlyophobicity (GLM contact angle ≥ 155°) and are nonstick toward GLMs, thereby achieving high mobility of GLM droplets (sliding angle 8–12°). The excellent barrier and anti-adhesion performance of the diamond coatings are proven in long-term experiments (3 weeks) of coated titanium alloy (Ti) samples in contact with GLMs. The electrical performance of the conductive diamond coating deposited on Ti is reliable and stable over a period of 50 h. As proof-of-concept applications a switch and a thermal management device based on liquid metals are demonstrated, signifying that coating diamond films on metals is a potent means to achieve stable integration of solid metals with GLMs.
研究领域:
材料科学
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电子工程
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
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IF 5.155
Yujie Qiang,Shengtao Zhang,Liping Wang
Deoxyribonucleic acid (DNA) was investigated for suppressing copper corrosion in 0.5 M H 2 SO 4 through electrochemical measurement, microscopic surface observation, X-ray photoelectron spectroscopy (XPS) analysis and molecular dynamics (MD) simulation. Results indicate that DNA acts as an effective cathodic-type inhibitor that mainly suppresses cathodic reaction by forming anchored DNA-adsorption film. The film shows active blocking effect, obeys the Langmuir adsorption model and involves physisorption and chemisorption . The MD simulation gives the new insights at molecular level and indicates the formation of an interesting double barrier of DNA molecule on the Cu (111) surface due to its unique twist structure.
研究领域:
材料科学
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电化学
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表面科学
✓ 已验证
DOI
高影响因子
Materials
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2023
·Vol. 16
·期 8
·3214
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IF 3.4
Yafei Liu,Huixia Feng,Luyao Wang,Tiantian Yang,Jianhui Qiu
Due to the obvious numerous economic and technical consequences of the corrosion process, its inhibition is one of the most critical aspects of current research. A corrosion inhibitor for the bis-thiophene Schiff base copper–metal complex Cu(II)@Thy-2 was investigated here, which was synthesized via a coordination reaction with a bis-thiophene Schiff base (Thy-2) as a ligand and copper chloride (CuCl2-2H2O) as a ligand metal salt. When the corrosion inhibitor concentration was increased to 100 ppm, the self-corrosion current densityIcoorreached a minimum of 2.207 × 10−5A/cm2, the charge transfer resistance reached a maximum of 932.5 Ω·cm2, and the corrosion inhibition efficiency reached a maximum of 95.2%, with the corrosion inhibition efficiency showing a trend of increasing first and then decreasing with concentration increase. After adding Cu(II)@Thy-2 corrosion inhibitor, a uniformly distributed dense corrosion inhibitor adsorption film formed on the surface of the Q235 metal substrate, significantly improving the corrosion profile compared to both before and after the addition of the corrosion inhibitor. Before and after the addition of corrosion inhibitor, the metal surface’s contact angle CA increased from 54.54° to 68.37°, showing that the adsorbed corrosion inhibitor film decreased the metal surface’s hydrophilicity and increased its hydrophobicity.Keywords:anticorrosion;corrosion inhibitor;thiophene Schiff base;electrochemistry
研究领域:
材料科学
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化工
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yue Shi,Jiejie Bai,Aixin Ma,Zhitao Zou,Yanru Liu,Haifeng Lin,Dehong Chen,Ruiyong Zhang,Jianping Lai,Lei Wang
The superior electrocatalysts for seawater oxygen evolution reaction (OER) require fast kinetic to promote reactant (OH − ) transport and adsorption, and to optimize oxygenated intermediates (O* and OOH*) adsorption, but also high corrosion resistance by impeding Cl − adsorption under harsh seawater conditions, while the incomprehensive design greatly hinder the system advancement at high current densities. Herein, we propose orderly incorporating amorphous FeSe nanosheets as the dynamic anti-corrosion layer to reinforce charge redistribution of CoNi layered double hydroxide (LDH) nanosheets array and create favorable microenvironments. The ordered two-dimensional/three-dimensional structure prepared by novel non-equilibrium electrodeposition strategy allows amorphous FeSe component not only to activate CoNi-LDH for promoting OH − adsorption, optimizing oxygenated intermediates adsorption and increasing Cl − adsorption energy, but also repel Cl − by dynamic polyanion layer without blocking active sites, thus affording effective seawater OER with low overpotential, excellent stability and high selectivity at high current densities. The integrated CoNi-LDH/FeSe electrode delivers a small overpotential (338 mV at 500 mA cm −2 ) and possesses outstanding stability and selectivity during a 500-hour durability test at 500 mA cm −2 in alkaline seawater.
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
APPLIED SURFACE SCIENCE
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2023
·
IF 6.7
Yuan Jing,Fandi Meng,Fuhui Wang,Li Liu
In this work, a long-lasting slippery liquid-infused porous surface (SLIPS) was fabricated on an organic coating to achieve both anticorrosion and antibacterial functions. Phenyl-modified etched basalt (PEB) scales were produced to construct micro-nano capillary structures and generate π electrons, which facilitated the retention of lubricant on the surface when assembled onto an epoxy resin layer. Plant oil was selected as a lubricant to introduce numerous –COOH, and was robustly trapped on the surface by π-COOH interactions, which enhanced the durability of the SLIPS coating. Based on the electrochemical tests, the coating displayed superior anticorrosion performance with |Z| 0.01Hz values of 1.99 × 10 10 Ω·cm 2 after 14 days of immersion, which benefited from excellent barrier effect and liquid repellency. The zeta potential result proved that the corrosion resistance of SLIPS coating was further improved by the electrostatic repulsion. In addition, the antibacterial experiment results demonstrated only 0.32% of biofilm coverage and no live bacteria after 3 days of immersion, which implied the dual mechanisms of SLIPS coating in killing bacteria and inhibiting bacterial adhesion. The SLIPS coating with excellent lubricant retention and promising anticorrosion/bactericidal performance possesses tremendous application potential in marine protection.
研究领域:
材料科学
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生物学
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2024
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IF 11.2
Tian-Xiao Liang,Peng-Yu Zhu,Muhammad Arslan Hafeez,Muhammad Yasir,Cheng Zhang,Lin Liu
Achieving a delicate synergy between mechanical robustness and antifouling attributes in coatings remains a formidable challenge for marine applications. Inspired by the assembly of nacre, we present a novel approach to fabricate a nacre-like metallic coating. This coating comprises an amorphous matrix with excellent anti-corrosion and anti-wear properties, as well as Cu-rich 3D interconnected channels for antifouling function. The coating is produced by high velocity oxygen fuel (HVOF) thermal spraying of surface-modified Fe-based amorphous powders with a Cu-layer. The resulting coating exhibits exceptional mechanical robustness, including high resistance to erosion, abrasion, and impact, surpassing conventional polymer antifouling coatings. Furthermore, the controlled Cu + leaching capability of the in-situ constructed 3D interconnected diffusion channels, facilitated by the Cu-rich intersplats, contributes to the remarkable antifouling performance. This includes nearly 100 % resistance to bacterial adhesion after 1 day of immersion and over 98 % resistance to algal attachment after 7 d of immersion, resulting in a prolonged service lifetime. Notably, even after 200 cycles of wear damage, the Cu-modified amorphous coating still maintains its excellent antifouling properties. The Cu-rich intersplats play a critical role in transporting and sustainably leaching Cu ions, thereby accounting for the outstanding antifouling performance. Ultimately, we aim to advance the design of high-performance coatings suited for diverse marine applications, where both the mechanical robustness and antifouling properties are essential.
研究领域:
材料科学
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海洋工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
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2024
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IF 4.4
Xuanlin Qiu,Chuanpeng Li,Yuchen Sun,Yu Liu,Xingwei Wang,Shuang Sun,Qiangliang Yu,Bo Yu,Meirong Cai,Feng Zhou
Further exploration of MXene’s potential in self-healing materials is promising, given its exceptional surface properties and adaptability to various modifications. In this study, the surface of MXene was functionalized with 2,5-diaminobenzenesulfonic acid (2,5-DBSFA) and 1-{3-[(N-n-butyl) aminoformamido] propyl}-3-cetyl imidazolium bromide (M16) successively, resulting in the successful preparation of functionalized MXene (f-MXene). It was added as an anticorrosion and wear-resistant filler to the self-healing epoxy resin coating with dynamic disulfide bonds, and the corrosion and friction behaviors of the coating were explored. Under heating at 170 °C for 10 min, the self-healing performance of the EP coating was significantly improved, with |Z|0.01Hz increasing from 6.77 × 106 to 1.54 × 108 Ω·cm2. This significant increase indicates that functionalized MXene can act as an effective repair agent in the EP matrix, working together with dynamic disulfide bonds to promote self-healing of microcracks or damage. Moreover, the tribological test results indicate that the addition of f-MXene not only enhances the self-healing ability but also improves the coating’s tribological properties. The introduction of f-MXene into the EP coating results in improved resistance to wear and friction, in which the average coefficient of friction decreased from 0.53 to 0.33 and wear rate has decreased 53.3%. This is attributed to the excellent mechanical and chemical properties of MXene, which can improve the stress distribution of the coating and form a self-lubricating film during friction.
研究领域:
材料科学
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表面工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
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IF 6.9
Haoran Xu,Shunli Wang,Kaijing Hu,Haixu Dou,Pengpeng Lu,Jianfu Wang,Yinsheng Li,Huichao Jin,Limei Tian,Luquan Ren
High-temperature corrosion in marine environments demands advanced protective coatings. Inspired by spider silks and mussels, a mechanically tough, high adhesion and healable polyurethane composite coating (PU-FM) was developed. Specifically, a chain extender (FA-FGE diol) rich in multiple Diels-Alder (DA) furan rings was developed to determine the optimal PU matrix, combined with 1 wt% dopamine-modified multi-walled carbon nanotubes. The abundant DA bonds not only provide thermal stability and compactness of the polymer chain for high-temperature anti-corrosion, but also support the compatibility of self-healing properties. PU-FM exhibited outstanding mechanical properties, with a high toughness of 356MJ·m −3 , strength of 72 MPa, and adhesion of 16.2 MPa. After 60 h of cavitation, average corrosion depths of PU-FM were only 3.4 nm (20℃) and 8.4n m (80℃). The |Z| 0.01Hz values of PU-FM maintained 1.111 × 10 9 Ω·cm 2 (20℃) and 7.361 × 10 7 Ω·cm 2 (80℃) after exposed to 3.5 wt% NaCl solutions for 30 d. Moreover, PU-FM also demonstrated 93 % self-healing efficiency under near-infrared light for 90 s, retaining 81 % after three cycles. This approach, combining DA bond-rich chain extenders with nanofiller reinforcement, offers a novel solution for high-temperature anti-corrosion and self-healing coatings, addressing critical challenges in marine and industrial applications.
研究领域:
材料科学
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海洋工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2018
·
IF 3.927
Hongjun Kang,Zhongjun Cheng,Hua Lai,Haoxiang Ma,Yuyan Liu,Xianmin Mai,Youshan Wang,Qian Shao,Lichen Xiang,Xingkui Guo,Zhanhu Guo
Oil/water separation becomes a research hotspot because of the frequent oil spill accidents. Although lots of separating membranes with super-wettability have been fabricated to separate oil or water from the mixtures, to separate both heavy (ρ oil > ρ water ) and light (ρ oil < ρ water ) oil/water mixtures with high efficiency and high flux is still a challenge, especially to obtain a membrane with mechanically robust nanostructures , and simultaneously anti-corrosive and self-cleaning ability. Herein, a novel titania nanostructured mesh membrane with superamphiphilicity in air, and dual superlyophobicity in liquid mediums were fabricated. Both high separation efficiency and flux of more than 99.2% and 16,954 L m −2 h −1 were obtained for both light and heavy oil/water mixtures. Importantly, the TiO 2 mesh membrane showed mechanically robust nanostructures and anti-corrosive ability, which can remain dual superlyophobicity, i.e., both underwater superoleophobicity and underoil superhydrophobicity and high oil-water separating behavior even after immersion in solutions of strong acid, basic, high salty, various organic solvents , and even after being abrased and adhered by pure sands and adhesive tape, respectively. Meanwhile, TiO 2 mesh membrane had shown photocatalytic decomposition of oil and organic molecules under UV irradiation, demonstrating unique self-cleaning and anti-fouling ability of the membranes. Given so many merits of these unique membranes, it is believed to these membranes have great potentials to be used in wastewater treatment and oil spill recovery.
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
CHEMICAL ENGINEERING JOURNAL
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2020
·
IF 10.652
Haiyan Liang,Qiming Lu,Minghui Liu,Rongxian Ou,Qingwen Wang,Rafael L. Quirino,Ying Luo,Chaoqun Zhang
Acids are traditionally used in the production of environmentally-friendly cationic waterborne polyurethane dispersions. However, the effect of their conjugate bases on the final properties of waterborne polyurethanes has been rarely explored. In this study, the effect of different acids in tailoring the performance of bio-based cationic waterborne polyurethanes has been reported. Polyurethane films ranging from flexible elastomers to tough plastics can be obtained, and their properties can be simply controlled by the selection of the acids. The tunability of the hydrogen bonding strength confers the resulting polyurethane films enhanced multi-function, such as UV absorption, anticorrosion properties, and long-term antibacterial performance. These results represent a significant advancement over traditional techniques, providing a simple strategy to tailor the performance of cationic waterborne polyurethanes, and offering environmentally-friendly amino acid substitutes for commonly used acids, such as acetic acid, HCl, or glycolic acid. The methodology described here eliminates long-standing issues of PUs, such as irritating odor, corrosiveness, and air pollution.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2015
·
IF 6.723
Lin Gu,Shuan Liu,Haichao Zhao,Haibin Yu
Dispersion of graphene in solvents is of crucial importance toward its practical applications. In this study, using a water-soluble carboxylated aniline trimer derivative (CAT–) as a stabilizer, the commercial graphene can be stably dispersed in water at high concentration (>1 mg/mL) via strong π–π interaction that was proved by Raman and UV–vis spectra. Moreover, the CAT–-functionalized graphene sheets (G-CAT– hybrid) exhibited high conductivity (∼1.5 S/cm), good electroactivity and improved electrochemical stability. The addition of well-dispersed graphene into waterborne epoxy system (G-CAT–/epoxy) remarkably improved corrosion protection compared with pure waterborne epoxy coating, based on a series of electrochemical measurements performed under 3.5% NaCl solution. This significantly enhanced anticorrosion performance is mainly due to the improved water barrier properties derived from highly dispersed graphene nanosheets in the epoxy coating.
研究领域:
材料科学
·
化学工程
·
电化学
✓ 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）