Article
Computer Science, Information Systems
Meiling Guo, Cheng Wang, Zhenchao Yang, Zhentao Xu, Mingshun Yang, Pengkang Zhao, Yan Zhou, Pengyang Li, Quandai Wang, Yan Li
Summary: This study presents a controllable and scalable fabrication approach for superhydrophobic hierarchical structures and demonstrates their excellent ability in water energy harvesting. The method combines multiple photolithography and micromolding processes to accurately regulate the diameters and center distances of two-level micropillars. The fabricated hierarchical structures possess advantages such as structure control, large scale, high accuracy, and high consistency. The structures show a larger contact angle than single-level structures, achieving superhydrophobicity. Furthermore, when applied to water-solid contact triboelectric nanogenerators, the hierarchical structures exhibit superior water energy harvesting ability compared to flat films and single-level structures due to enhanced friction area and superhydrophobic property.
Article
Chemistry, Multidisciplinary
Lingqi Zhong, Haizheng Tao, Xiao Gong
Summary: Superhydrophobic poly(L-lactic acid) (PLLA) hierarchical membranes with excellent oil-removal performance were fabricated using a simple solvent-evaporation-induced precipitation method, which is crucial for mitigating oil pollution. By adjusting preparation parameters, different morphologies of PLLA membranes can be conveniently prepared, leading to significant improvement in water repellency. The PLLA/SiO2 nanocomposite membrane with dense hierarchical micro/nanostructures exhibited a water contact angle greater than 167.1 degrees, showing great potential in oil-water separation.
Article
Chemistry, Multidisciplinary
Yi Wang, Weinan Zhao, Mei Han, Lu Guan, Lian Han, Afraz Hemraj, Kam Chiu Tam
Summary: A superhydrophobic surface with tunable nanoscale hydrophilicity has been constructed using structured Pickering emulsions, allowing for controllable manipulation of droplet nucleation and removal. The surface exhibits enhanced water deposition rate without sacrificing water transport rate, achieving high water harvesting flux. This research has potential applications in water harvesting.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Jiwen Wang, Yanbin Zhang, Qiang He
Summary: In this study, a simple and efficient method was proposed to prepare a stretchable superhydrophobic fluororubber surface with hierarchical micro-convexities. The peculiar structure of the surface showed excellent superhydrophobicity and high water sliding angle. It maintained its superhydrophobic property even after various durability tests and could still realize the lossless transfer of water droplets at large stretching strains, making it suitable for microfluidic devices under extreme working conditions.
Article
Nanoscience & Nanotechnology
Chenxi Lu, Yuan Gao, Senjiang Yu, Hong Zhou, Xin Wang, Lingwei Li
Summary: In this study, a non-fluorinated flexible superhydrophobic surface with excellent mechanical durability and self-cleaning performance was designed. The labyrinth-like wrinkles with micro-/nano-textured structures were the key to achieving outstanding superhydrophobicity and maintaining stability under mechanical deformation. This surface shows great potential for applications in flexible electronics, wearable devices, and biomedical engineering.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Yang Liu, Hui Zhang, Pu Wang, Zunyan He, Guangneng Dong
Summary: This paper reports a novel biomimetic superhydrophobic surface with petal-like microstructures inspired by the droplet pinning effect. The parameters such as petal number, petal proportion, and spacing distance were studied and optimized to achieve maximum droplet bearing capacity. The optimized petal-like microstructures showed a 58.3% increase in bearing capacity compared to common mushroom microstructures.
MATERIALS & DESIGN
(2022)
Article
Engineering, Chemical
Jiwen Wang, Yanbin Zhang, Qiang He
Summary: A superhydrophobic fluororubber surface with an orderly layered microprotrusion structure has been successfully prepared, demonstrating excellent superhydrophobic performance and durability. It can maintain its superhydrophobicity even under high temperatures and withstand thermal and mechanical damages. The surface shows great potential for applications in efficient heat exchange and seawater desalination.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Nastaran Bakhtiari, Saeid Azizian, Babak Jaleh
Summary: In recent years, freshwater shortages caused by factors such as population growth and global climate change have become a major concern. Inspired by nature, water harvesting from atmospheric fog has gained significant attention as a solution to the freshwater supply problem. This study presents a facile physicochemical hybrid method to create glass surfaces with contrast wettability. The results demonstrate that the hybridization of superhydrophobic and hydrophilic regions, along with optimized pattern selection, can greatly enhance water harvesting performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Biotechnology & Applied Microbiology
Qinghua Luo, Jiao Peng, Xiaoyu Chen, Hui Zhang, Xia Deng, Shiwei Jin, Hai Zhu
Summary: Biology-inspired superhydrophobic technology has been widely used in various fields, but its poor durability has limited its practical application. This review summarizes the superhydrophobic models, improvement in surface stability, durability test methods, and applications of mechanical-chemical superhydrophobic materials. The future outlook and challenges of this technology are also highlighted.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Applied
Zeng-Guo Bai, Yao-Yao Bai, Guang-Ping Zhang, Si-Qi Wang, Bin Zhang
Summary: A self-healing superhydrophobic coating was successfully fabricated in this study, which achieved rapid self-repair through efficient hydrogen bonding and demonstrated excellent chemical resistance and mechanical stability, suitable for various substrates. The coating shows great potential for practical applications, especially in oil-water separation.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Wei Tong, Lingling Cui, Rongxian Qiu, Chengqi Yan, Yuntong Liu, Nan Wang, Dangsheng Xiong
Summary: The laser texturing technique can create a regular dimple-pattern array on bare aluminum alloy surface, resulting in superhydrophobic properties which can be adjusted by controlling the dimple-pattern dimensions. The use of fluorescence method reveals the air trapping ability of the superhydrophobic surface, leading to strong mechanical stability of the samples.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Thermodynamics
Xingbo Dai, Wenqiang Zhang, Jingzhi Zhang, Gongming Xin, Xinyu Wang
Summary: The dynamic behavior characteristics of droplet impact on vibrating superhydrophobic microstructured surfaces in the vertical direction are evaluated using Computational Fluid Dynamics and Volume of Fluid technique. The effects of wall vibration parameters on contact time and maximum penetration depth are investigated, and it is found that changes in phase angle and droplet velocity influence the relative movement between the droplet and the vibrating surface, leading to changes in contact time and maximum penetration depth.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Jintao Wang, Xiuxia Zhang, Hong Lu, Yukun Fu, Man Xu, Xueliang Jiang, Jinlong Wu
Summary: A stable and durable superhydrophobic coating was successfully constructed on nylon fabric surface by combining commercial epoxy resin adhesives with hydrophobic kaolin clay, offering favorable chemical stability, mechanical durability, and antifouling ability. The coated fabric showed high efficiency in separating various oils from hot water and corrosive water, suggesting its potential application in the field of oily wastewater purification.
APPLIED CLAY SCIENCE
(2021)
Article
Materials Science, Ceramics
Wensheng Zhong, Manyuan Wu, Bichen Xiong, Qiaowen Liu, Hongwei Liao
Summary: Inspired by the structure of lotus leaves, researchers have developed a method to create superhydrophobic surfaces on ceramics. By growing micron-sized mullite whiskers and coating them with fluorinated nanoparticles, the resulting surface exhibits excellent stability and superhydrophobicity.
CERAMICS INTERNATIONAL
(2022)
Article
Thermodynamics
Xin Wang, Bo Xu, Zhenqian Chen
Summary: A new hierarchical superhydrophobic surface with micropores and nanoblades (MN SHS) is proposed to enhance the jumping ability of droplets and maintain high-efficiency droplet jumping condensation at larger subcoolings. The results show that MN SHS has a higher jumping frequency and a higher proportion of multidroplets merging compared to nanostructured superhydrophobic surfaces (Nano SHS). The maximum diameter of condensate droplets on MN SHS is 50% smaller than that on Nano SHS.
APPLIED THERMAL ENGINEERING
(2023)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)