Science Advances
·
2024
·Vol. 10
·期 20
·
IF 11.7
Huashuai Hu,Zhaorui Zhang,Lijia Liu,Xiangli Che,Jiacheng Wang,Ye Zhu,J. Paul Attfield,Minghui Yang
The ocean, a vast hydrogen reservoir, holds potential for sustainable energy and water development. Developing high-performance electrocatalysts for hydrogen production under harsh seawater conditions is challenging. Here, we propose incorporating a protective V2O3 layer to modulate the microcatalytic environment and create in situ dual-active sites consisting of low-loaded Pt and Ni3N. This catalyst demonstrates an ultralow overpotential of 80 mV at 500 mA cm−2, a mass activity 30.86 times higher than Pt-C and maintains at least 500 hours in seawater. Moreover, the assembled anion exchange membrane water electrolyzers (AEMWE) demonstrate superior activity and durability even under demanding industrial conditions. In situ localized pH analysis elucidates the microcatalytic environmental regulation mechanism of the V2O3 layer. Its role as a Lewis acid layer enables the sequestration of excess OH− ions, mitigate Cl− corrosion, and alkaline earth salt precipitation. Our catalyst protection strategy by using V2O3 presents a promising and cost-effective approach for large-scale sustainable green hydrogen production.
研究领域:
材料科学
·
能源技术
·
催化化学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jiaye Li,Xinglin Li,Yichuan Wang,Jun Liu,Boyang Hu,Yuan Zhang,Shuo Zhang,Baoan Li
Superamphiphobic surface exhibits excellent self-cleaning and anti-fouling properties, which can be applied in many fields. However, the accumulation of non-volatile organic contaminates can make the superamphiphobicity invalid gradually. Herein, we proposed a novel design of superamphiphobic coating with photocatalytic ability to degrade organic contaminates, aiming for multiple self-cleaning surface. It was realized through a simple dip coating strategy with layered and self-assembled micro-nano reentrant structure assistant with low surface energy. The dip coating surface exhibits superamphiphobicity against a variety of liquids, even for hexadecane (with a low surface energy of 27.5 mN/m) also has a contact angle of 152.4° and sliding angle of 8.4°, respectively. Simultaneously, due to the photocatalytic degradation of accumulated organic contaminants that on the surface, the dip coating surface can effectively restore the superamphiphobicity cyclically with both experimental and real outdoor conditions. Besides, this novel strategy can be applied to a variety of substrates and exhibits excellent flexibility and good durability, which can resilience to over 500 times of abrasion, chemical reagent corrosion for over 48 h, endure high temperature at 300 °C for over 12 h, and over 1,000 times of bending or 500 times of torsions. Consequently, we convince that this photocatalytic superamphiphobic coating strategy brings a promising method for maintaining long-term self-cleaning and anti-fouling capabilities in variety of applications even in harsh environments.
研究领域:
材料科学
·
表面工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Xueyu Zhang,Xiaoyue Liang,Qi Zhao,Chunju He
Hydrophilic coatings, an effective strategy to achieve anti-fogging performance on substrates, still face the problem of poor endurability. In this work, a hydrophilic antifogging coating consisting of poly (2-acrylamido-2-methylpropanesulfonic acid- co -butyl acrylate- co -dopamine methacrylamide) was constructed, which shows significant anti-fogging performance, notable abrasion resistance and excellent adhesion. The combination of strong interfacial adhesion and hydrophilic/hydrophobic structure is key to this approach, which avoids interfacial failure and swelling-induced wrinkles under typical fogging conditions. The adhesion strength is higher than most commercial glues and high-performance polymer adhesives in the literatures since the catechol groups endows the coating marvelous adhesion to the substrate. This study provides a promising avenue for the design and fabrication as well as practical application of anti-fogging coating with strong adhesion strength.
研究领域:
材料科学
·
表面化学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale Advances
·
2024
·
IF 4.6
Junming Huang,Genzheng Sha,Minghui Cui,Mengqiu Quan,Yuqing Wang,Yao Lu,Jin Zhu,Jing Chen
Superhydrophobic polyurethanes offer robust hydrophobicity and corrosion resistance. However, it is essential to consider the durability and environmental constraints associated with these materials. This study prepared a bio-based superhydrophobic polyurethane coating film using epoxidized soybean oil, superhydrophobically modified silica nanoparticles, and OH–PDMS–OH as surface modifiers. The coating film exhibited sustained super-hydrophobicity and an excellent antifouling effect for pu-erh tea and edible oils, among other substances, after 14 days of immersion in solutions with different pH values, 28 days of exposure to air, and 2000 abrasion cycles. This finding can be applied to the development of daily indoor and outdoor antifouling protective coatings and provides a new method for the preparation of green and durable superhydrophobic antifouling coating films.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Coatings
·
2020
·Vol. 10
·期 11
·1025
·
IF 2.436
Yuan Yuan,Liang Wang,Guoyong Liu,Ruijin Liao
Slippery liquid infused porous surfaces (SLIPS) have been considered to be potential and effective method for anti-icing. Much work needed to be done for the application in field. In this study, SLIPS were successfully fabricated on 7075-T651 aluminum alloy by anodizing in phosphoric acid solution with three different voltage parameters and coating lubricant. Then the most suitable anodization parameters of samples were selected through the anti-icing performance tests. The best as-prepared surface exhibited ultralow ice-adhesion strength, which reduced from 261 to 6 kPa. Meanwhile, the freezing time of water-drop on aluminum alloy surfaces have been dramatically delayed at −5 and −10 °C (humidity of 75% ± 5%), respectively. Moreover, the durability of the SLIPS have also been investigated. Cycles of icing/deicing, mechanical damage, thermal and UV exposure were used to investigate the durability of SLIPS, and SLIPS could still show low ice-adhesion strength.Keywords:ice-adhesion;anti-icing;aluminum alloy;anodization;durability
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2019
·Vol. 54
·期 20
·13358-13367
·
IF 3.442
Zhang Rui,Wu Yuanpeng,Zhang Haiyan,Xue Shishan,Guo Meiling,Zhang Tao
In this work, we present a hydrophobic–oleophilic Fe foam for oil–water separation. Hydrophobic–oleophilic Fe foam was fabricated simply through dip-coating with n -dodecyl mercaptan. The morphology, chemical composition and water contact angle of the Fe foam were characterized. The Fe foam could absorb a variety of oils, such as diesel, toluene, xylene, cyclohexane, dodecyl methacrylate, crude oil, 1,2-dichloroethane, hexane and chloroform, these oils could be underwater or on water surface, and it exhibited excellent durability, verified by the high separation efficiency (more than 98.8% for a cyclohexane–water mixture) after reusing for 48 times. Furthermore, oil collection with the Fe foam could be controlled remotely using external magnetic field, and the Fe foam displayed high flux, good anti-corrosion and wear resistance. The simple and low-cost fabrication method enabled the Fe foam to be a promising candidate for large-scale oil–water separation and for remotely controllable water purification.
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
MATERIALS RESEARCH BULLETIN
·
2019
·
IF 3.355
Ni Wang,Ziwei Deng
The clean-up of oil spills is a worldwide challenge for the prevention of serious environmental pollution. Therefore, it is imperative to develop materials for oil-spill cleanup that have high absorption/separation capacity, good selectivity, controlled collection and easy recyclability. Here, we present a facile and low-cost approach for fabricating magnetic, durable, and superhydrophobic carbon sponges. The resultant carbon sponges feature fast magnetic response, excellent superhydrophobicity/superoleophilicity, high chemical resistance, environmental stability and mechanical durability, as well as high oil/water separation efficiency and oil absorbency. More importantly, given the magnetically controllable property endowed by magnetic particles to superhydrophobic carbon sponges, which act as magnetically controlled “smart absorbents”, the carbon sponges can therefore controllably and selectively adsorb oils from oil-water mixtures. Thus, our strategy may open up a new avenue for developing magnetic responsive intelligent oil sorbent materials suitable for practical applications in the fields of water remediation, oil spill clean-up and oil 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
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2022
·
IF 3.898
Taoyan Mao,Runhui Xiao,Peng Liu,Jiale Chen,Junqiang Luo,Su Luo,Fengwei Xie,Cheng Zheng
Nowadays, oil contamination has become a major reason for water pollution, and presents a global environmental challenge. Although many efforts have been devoted to the fabrication of oil/water separation materials, their practical applications are still hindered by their weak durability, poor chemical tolerance, environmental resistance, and potential negative impact on health and the environment. To overcome these drawbacks, this work offers a facile method to fabricate the eco-friendly and durable oil/water separation membrane fabrics by alkaline hydrolysis and silicon polyurethane coating. The X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy results demonstrate that silicon polyurethane membrane could be coated onto the surface of hydrolyzed polyester fabric and form a micro-/nano-scaled hierarchical structure. Based on this, the modified fabric could have a stable superhydrophobic property with a water contact angle higher than 150°, even after repeated washing and mechanical abrasion 800 times, as well as chemical corrosion. Moreover, the modified fabrics show excellent oil/water separation efficiency of up to 99% for various types of oil–water mixture. Therefore, this durable, eco-friendly and cost-efficient superhydrophobic fabric has great potential in large-scale oil/water separation.
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
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Haiwei Yang,Lvzhu Cheng,Qiliang Yang,Amjad Farooq,Lili Ying,Peng Wang,Zongqian Wang
Integration of natural textiles ( e.g. silk) and two-dimensional transition metal carbide/nitride (MXene) is promising for the development of wearable thermal management materials. However, fabricating MXene-decorated textiles with durable and stable thermal management performance remains a challenge due to the susceptible oxidation of MXene and the weak interaction between MXene and fibers. Here, we propose a novel surface modification strategy for MXene nanosheets (SSMXene) by co-assembling with natural sericin to protect against water and oxygen, enrich surface chemistry, and significantly enhance oxidative stability. Subsequently, SSMXene-coated silk fabrics (M-silk) were developed via choline chloride/oxalic acid deep eutectic solvent (DES) micro-etching pretreatment and then decorating SSMXene through a scalable solution dip-coating technique. Notably, DES micro-etching pretreatment enabled strong interfacial bonding between SSMXene and fibers through the synergistic effect of hydrogen bonding and mechanical locking. The fabricated M-silk not only demonstrated desirable thermal management performance, including active electrical heating (the maximum temperature rise = 55.6 °C) and passive radiative heating (the mid-infrared emissivity as low as 0.24 at 7–14 μm), but also possessed superior breathability, laundry durability, and flame retardancy. Therefore, the smart, comfortable, durable, and multifunctional M-silk displays great potential for achieving effective personal thermal management.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 19
·3983
·
IF 5
Jiayi Shen,Junfei Ou,Sheng Lei,Yating Hu,Fajun Wang,Xinzuo Fang,Changquan Li,Wen Li,Alidad Amirfazli
Slippery coatings, such as the slippery liquid-infused porous surface (SLIPS), have gained significant attention for their potential applications in anti-icing and anti-fouling. However, they lack durability when subjected to mechanical impact. In this study, we have developed a robust slippery coating by blending polyurethane acrylate (PUA) with methyltriethoxysilane (MTES) and perfluoropolyether (PFPE) in the solvent of butyl acetate. The resulting mixture is homogeneous and allows for uniform coating on various substrates using a drop coating process followed by drying at 160 °C for 3 h. The cured coating exhibits excellent water repellency (contact angle of ~108° and sliding angle of ~8°), high transparency (average visible transmittance of ~90%), exceptional adherence to the substrate (5B rating according to ASTMD 3359), and remarkable hardness (4H on the pencil hardness scale). Moreover, the coating is quite flexible and can be folded without affecting its wettability. The robustness of the coating is evident in its ability to maintain a sliding angle below 25° even when subjected to abrasion, water jetting, high temperature, and UV irradiation. Due to its excellent nonwetting properties, the coating can be employed in anti-icing, anti-graffiti, and anti-sticking applications. It effectively reduces ice adhesion on aluminum substrates from approximately 217 kPa to 12 kPa. Even after 20 cycles of icing and de-icing, there is only a slight increase in ice adhesion, stabilizing at 40 kPa. The coating can resist graffiti for up to 400 cycles of writing with an oily marker pen and erasing with a tissue. Additionally, the coating allows for easy removal of 3M tape thereon without leaving any residue.Keywords:solid slippery coating;durability;anti-freezing;anti-graffiti;anti-smudge
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 ADHESION SCIENCE AND TECHNOLOGY
·
2021
·
IF 2.077
Lihui Xu,Jing Wan,Xiaoling Yuan,Hong Pan,Liming Wang,Yong Shen,Yu Sheng
A durable superamphiphobic cotton fabric was obtained by coating SiO2 aerogel particles, polydimethylsiloxane (PDMS), and 1H,1H,2H,2H-perfluorooctyltriethoxysilane (PFTES) on a cotton fabric via the dip-pad-dry process. The surface morphology, chemical composition, and thermal degradation behavior characterization of the as-prepared cotton fabric (PFTES/PDMS/SiO2@Cotton fabric) were performed, respectively. It was proved that the coated cotton fabric was successfully covered with PFTES/PDMS/SiO2. The porous rough surface topology structure due to the SiO2 aerogel particles along with low surface energy because of the fluorinated chains and PDMS adhesive layer on the as-obtained PFTES/PDMS/SiO2@Cotton fabric can trap a layer of air, endowing the coated fabric durable superamphiphobicity. The prepared superamphiphobic cotton fabric with a water contact angle (WCA) of 159.0 ± 0.8° and an oil contact angle (OCA) of 154.5 ± 0.7° showed good liquid repellence for common liquids in daily life like orange juice, cola, coffee, and milk, exhibiting excellent self-cleaning and stain-resistance property. Moreover, the superamphiphobic cotton fabric possessed good durability and still maintained superamphiphobicity after mechanical abrasion for 1500 cycles or ultraviolet (UV) irradiation for 96 h. This superamphiphobic cotton fabric exhibited potential applications in various fields due to the high repellency to various liquids.
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 23
·12171-12178
·
IF 7.443
Zhenxing Wang,Yanchao Xu,Yuyan Liu,Lu Shao
The current available superhydrophobic modification techniques that utilize mussel-inspired polydopamine (pDA) to construct hierarchical structures require the addition of nanoparticles or the usage of a high concentration of dopamine. These requirements are expensive and therefore lower the application efficiency. Herein, for the first time, a superhydrophobic fabric was prepared by a novel and simple mussel-inspired strategy with a much lower concentration of dopamine without any additional nanoparticles. Folic acid (FA) was first applied to a surface to induce the formation of rough pDA coatings with hierarchical structures. These hierarchical structures can be readily controlled by adjusting FA concentration or coating duration. After octadecylamine (ODA) chemical manipulation, the obtained fabric exhibited water contact and rolling off angles of about 162° and 7°, respectively, indicating that it was endowed with superhydrophobicity. Importantly, the superhydrophobic fabric can withstand continuous and drastic 3.5 wt% NaCl solution rinses and repeated tearing with an adhesive tape more than 30 times, suggesting that it has excellent durability. This novel mussel-inspired strategy can facilely and cost-effectively realize superhydrophobic manipulation and tailoring of materials. Moreover, an energy-saving and highly-efficient mini boat fabricated from our novel superhydrophobic fabric was utilized for self-driven oil spill cleanup. The boat can automatically recycle crude oil spills while floating freely on water with a cleanup rate of crude oil spill up to 97.1%, demonstrating great potential in environmental remediation. The novel strategy designed in this study will inspire the fast development of mussel-inspired superhydrophobic materials for applications in various fields.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 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）