Understanding the Wettability of Graphene Coatings: Insights, Measurements, and Implications for Diverse Applications
Source abstract
Abstract
Graphene’s (GR) wettability is a contentious subject marked by conflicting reports. Some studies claim superhydrophobicity with up to 150° contact angles indicating limited wettability. Conversely, other research suggests factors like surface roughness, contaminants, and lattice defects modify GR’s wettability, revealing moderate hydrophilicity in defect-free GR. Persistent disagreements center around the impact of GR production processes, substrate interactions, and environmental factors. This paper addresses the controversy by scrutinizing wetting measurement techniques and sample preparation. We present a comprehensive framework for sample preparation and characterization for a few GR layers. Key findings highlight the significance of sample preparation and the identification of Atomic Force Microscopy (AFM) and Vibrational Sum Frequency Generation (VSFG) spectroscopy as particularly valuable techniques for assessing GR wettability. These insights contribute to tailored GR-based applications, from surface coatings to catalysis and energy storage.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Graphene research and applications · Surface Modification and Superhydrophobicity · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
Research and Innovation Center on CO2 and H2, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
Research and Innovation Center in Graphene and 2D Materials, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Laboratory for Energy and Nano-Sciences, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
Funding
Khalifa University of Science, Technology and Research
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