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Updated: Jan 10, 2026
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Thermocatalysts Through the Lens of Nanoscale Semiconductor Heterojunctions: Plasma-Deposited CoO/WO3 Nanohybrid
Bartosz Panek1, Hanna Kierzkowska-Pawlak1, Paweł Uznański2
1Department of Chemical and Molecular Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wólczańska 213, Łódź, 93-005, Poland.
Abstract:
Hybrid nanomaterials composed of semiconducting nanoparticles offer exciting opportunities in thermocatalysis, yet the underlying mechanisms governing their interactions remain elusive. Commonly attributed to vague notions of "synergy" or "anti-synergy," these effects lack a clear physical basis. Herein, plasma-deposited CoO/WO3 thin-film nanohybrids are reported and their behavior in CO2 hydrogenation is investigated. Using XPS, XRD, and HRTEM, the formation of nano-heterojunctions with charge regions on the scale of individual nanoparticles is uncovered. This finding provides a conceptual framework for understanding synergistic effects in thermocatalytic systems, revealing how nanoscale charge modulation, controlled by the design of appropriate heterojunctions, governs catalytic activity and offers a new lens through which to interpret complex nanoparticle interactions in hybrid materials.
