Abstract
This study was focused on the growth of multi-walled carbon nanotubes (MWCNTs) on iron chloride-functionalized silica microspheres. In addition, the microwave absorption potential and the subsequent heat production of the resulting structures were monitored by means of infrared thermometry and compared with pristine commercially available MWCNTs. The functionalized silica microparticle substrates produced MWCNTs without any amorphous carbon but with increased structural defects, whereas their heat production performance as microwave absorbents was comparable to that of the pristine MWCNTs. Two-minute microwave irradiation of the SiO2@CNTs structures resulted in an increase in the material’s temperature from ambient temperature up to 173 °C. This research puts forward a new idea of charge modulation of MWCNTs and sheds light on an investigation for the development of bifunctional materials with improved properties with respect to efficient microwave absorbance.
Highlights
Reduction, recycling and reuse are crucial parameters in order to tackle waste problems and to move from linear economic processes and systems towards a more circular economy [1]
The results revealed increased microwave absorption compared to the uncoated sample (Fe3 O4 /multi-walled carbon nanotubes (MWCNTs)) [40]
Silica microspheres functionalized with iron chloride were fabricated and used for the growth of MWCNTs on their surface
Summary
Reduction, recycling and reuse are crucial parameters in order to tackle waste problems and to move from linear economic processes and systems towards a more circular economy [1]. Material development methods progressively lean towards green synthesis procedures, aiming at recycling strategies as well as the reusability of raw materials. In the industries related to composite and coating manufacture, there is a growing demand for reclaimable materials, which opposes a serious challenge due to the permanent nature of the bonding between the matrix and reinforcing material [1]. The term “debonding” has been addressed as a form of material failure, where loss of adhesion occurs between the matrix and filler [2]. Recent studies propose alternatives for the fabrication of coatings where debonding-on-demand is being described as a mechanism to separate the two phases of a composite material or a coated surface via the application of an external stimulus.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
