Results 41 to 50 of about 16,261 (256)

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

Surface roughness and contact angle of calcium sulfoaluminate cement mortar for optimal hydrophobic-agent content

KSCE Journal of Civil Engineering
In this study, polydimethylsiloxane (PDMS) and tetraethoxysilane, commonly used in water-repellent coatings, were directly incorporated into calcium sulfoaluminate (CSA) cement mortar to create a cement composite with water-repellent properties.
Younghwan Kim, Hongseob Oh
doaj   +1 more source

The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials

Advances in Materials Science and Engineering, 2017
In many cases, service life of reinforced concrete structures is severely limited by chloride penetration until the steel reinforcement or by carbonation of the covercrete.
Peng Zhang, Huaishuai Shang, Dongshuai Hou, Siyao Guo, Tiejun Zhao   +4 more
doaj   +1 more source

Evaluation of consolidating and water repellent treatments applied to the miocene sandstone used in Tunisian Heritage Monuments

Materiales de Construccion, 2005
Summary The research reported in the present paper focused on the behaviour of the Miocene sandstone used to build the Roman aqueduct at Zaghouan-Carthage and other Tunisian Heritage monuments, after application of water repellent and consolidating ...
K. Zoghlami, D. Gómez-Gras, A. Álvarez, M. P. De Luxán   +3 more
doaj   +1 more source

Facile Fluorine-free Finishing for Excellent Water Repellency of Cotton Fabric and Optimization Using Response Surface Methodology

Journal of Natural Fibers, 2022
Cotton fabrics are popular for their excellent properties, but their wider application is always limited due to their disadvantages including lack of water repellency and easy pollution.
Chengbing Yu, Kaiqin Shi, Yuanqiu Liu, Jinyan Ning, Jun Liu   +4 more
doaj   +1 more source

Single‐Step Recovery of Water from Stable Crude Oil‐Water Emulsion Using Surface Engineered Hybrid Inorganic‐Polymer Membranes

Advanced Functional Materials, EarlyView.
Atomic layer deposition is used to conformally surface engineer polymeric membranes to fabricate inorganic–organic hybrid membranes. These membranes have exceptionally strong attraction toward water even in high oil containing emulsions, which leads to an extremely strong hydration layer at the interface.
Bratin Sengupta, Yining Liu, Gaurab Sarkar, Rouke Cai, Katrina Sparks, Chi Thang Nguyen, Tamar Segal‐Peretz, Seth B. Darling, Jeffrey W. Elam   +8 more
wiley   +1 more source

Water-repellent surfaces of metallic glasses: fabrication and application

Materials Today Advances, 2021
Water-repellent surfaces based on advanced materials have broad applications in various fields. The amorphous structure and flexible element compositions make metallic glasses (MGs) suitable for multifunctional surfaces’ design.
Z. Li, J. Ma
doaj   +1 more source

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

Advanced Functional Materials, EarlyView.
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi, Samuel J. Ippolito, Chung Kim Nguyen, Durairaj Mahendiran, Michelle J. S. Spencer, Edwin L. H. Mayes, Billy James Murdoch, Jason Choi, Shamali De Silva, James Tardio, Adrian Trinchi, Ahmad E. Kandjani, Mohammad Al Kobaisi, Ylias Sabri   +13 more
wiley   +1 more source

Evaluation of water repellent treatments applied to stones used in andalusian cathedrals. II. Salt crystallization test

Materiales de Construccion, 1993
In a previous paper we have studied the changes that have ocurred in the properties related to water access and movement in the stone after the application of water repellent treatments.
R. Villegas Sánchez, J. F. Vale Parapar
doaj   +1 more source