POS7-0709
Synthesis and functional modification of Metal Oxide Nanoparticles for Applications in Electrochemical Storage and Gas Sensing
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
HanHo Kim (School of Materials Science and Engineering, Kookmin University)
Co-Author(s)
Abstract
The demand for high performance devices requires the development of functional metal oxides with tailored architecture. Here, we demonstrate structural control using titanium dioxide (TiO2) and tin dioxide (SnO2) to address challenges in electrochemical energy storage and gas sensors. In this work, morphological properties and operational performance are addressed in both lithium-ion battery anodes and volatile organic compound (VOC) detection.
Our synthesis pathway relies on a silica (SiO2) template-assisted process to create hollow structures. Initially, metal oxide shells are deposited over sacrificial silica cores. Subsequent sodium hydroxide (NaOH) etching treatment dissolves the templates, leaving high surface area of hollow space. To enhance conductivity and stability, a carbon shell is coated around the metal oxides via hydrothermal carbonization of glucose. This method enables precise adjustment of the hollow volume and carbon layer thickness, ensuring high structural reproducibility.
These customized frameworks display functional properties. When employed as anodes, the interior voids accommodate volumetric strain during battery cycling, while the carbon coating facilitates rapid electron transport. For gas sensing, the open-pore structure provides an active surface that accelerates sensitivity toward VOC molecules. Ultimately, this structural design methodology establishes a versatile pathway toward next-generation multifunctional materials, offering a progressive outlook for advanced electronic devices.
Our synthesis pathway relies on a silica (SiO2) template-assisted process to create hollow structures. Initially, metal oxide shells are deposited over sacrificial silica cores. Subsequent sodium hydroxide (NaOH) etching treatment dissolves the templates, leaving high surface area of hollow space. To enhance conductivity and stability, a carbon shell is coated around the metal oxides via hydrothermal carbonization of glucose. This method enables precise adjustment of the hollow volume and carbon layer thickness, ensuring high structural reproducibility.
These customized frameworks display functional properties. When employed as anodes, the interior voids accommodate volumetric strain during battery cycling, while the carbon coating facilitates rapid electron transport. For gas sensing, the open-pore structure provides an active surface that accelerates sensitivity toward VOC molecules. Ultimately, this structural design methodology establishes a versatile pathway toward next-generation multifunctional materials, offering a progressive outlook for advanced electronic devices.
