Overview
Spherical copper oxide particles are a specialized form of copper(II) oxide (CuO) with controlled morphology. Their uniform spherical shape and high surface area make them advantageous for industrial applications compared to irregularly shaped powders. These particles are synthesized through methods like spray pyrolysis or controlled precipitation, ensuring consistent size (typically 1–50 µm). Their spherical geometry improves flowability and packing density, critical for processes like screen printing in electronics.
Physical and Chemical Properties
As a transition metal oxide, spherical CuO particles exhibit semiconductor properties with a monoclinic crystal structure. Their black color and opacity stem from strong light absorption across visible wavelengths. Thermal stability up to 1,200°C makes them suitable for high-temperature applications. The spherical shape minimizes surface defects, enhancing catalytic activity. Unlike nano-CuO, these micron-sized particles pose lower inhalation risks while maintaining functional benefits.
Main Applications
In catalysis, spherical CuO particles serve as efficient oxidation catalysts for industrial chemical synthesis and exhaust gas treatment. Their shape ensures optimal contact with reactants. The electronics industry uses them in conductive pastes for printed circuit boards (PCBs) due to uniform dispersion. Other uses include antimicrobial coatings (leveraging CuO's biocidal properties) and stable black pigments for ceramics and glass.
Safety and Storage
While less hazardous than nanoparticles, spherical CuO requires handling with nitrile gloves and N95 masks to prevent dust exposure. Chronic inhalation may cause respiratory irritation. Store in sealed containers with desiccants to prevent moisture absorption. Incompatible with strong reducing agents (e.g., hydrogen, aluminum powder). Spills should be collected using HEPA-filter vacuums, not dry sweeping.
B2B Procurement Guide
Industrial buyers should specify particle size distribution (e.g., D50 value), purity (≥99% typical), and trace metal content. Batch-to-batch consistency is crucial for catalytic applications. Suppliers often provide technical datasheets with SEM images for morphology verification. MOQ for bulk orders (100+ kg) commonly reduces costs by 15–30%. Consider ISO 9001-certified manufacturers for quality assurance.
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