Overview
Iridium nanoparticles are nanoscale particles of the rare and precious metal iridium, typically ranging from 1 to 100 nanometers in diameter. These particles exhibit remarkable properties that differ significantly from bulk iridium due to their high surface-to-volume ratio and quantum confinement effects. As one of the densest and most corrosion-resistant metals, iridium in nanoparticle form finds specialized applications where these properties are crucial. The nanoparticles can be produced through various methods including chemical reduction, laser ablation, and thermal decomposition, with each method yielding particles with distinct characteristics.
Physical and Chemical Properties
Iridium nanoparticles possess exceptional chemical stability and catalytic activity. Their surface plasmon resonance properties make them valuable for optical applications. The nanoparticles maintain the remarkable corrosion resistance of bulk iridium, being virtually insoluble in all acids except aqua regia. At the nanoscale, iridium exhibits enhanced catalytic properties due to the increased number of surface atoms. The electronic structure of these nanoparticles can be tuned by controlling their size and shape, which affects their performance in electrochemical applications. Their high melting point and thermal stability make them suitable for high-temperature processes.
Main Applications
In industrial catalysis, iridium nanoparticles serve as efficient catalysts for hydrogenation reactions and as components in fuel cell electrodes. Their stability under harsh conditions makes them ideal for electrolyzers and other electrochemical devices. The medical field utilizes iridium nanoparticles in biosensors and as contrast agents for imaging. Their biocompatibility and unique optical properties enable applications in targeted drug delivery and photothermal therapy. In electronics, these nanoparticles contribute to advanced memory devices and conductive inks.
Safety and Storage
While bulk iridium is generally considered non-toxic, nanoparticles require special handling due to their increased reactivity and potential for inhalation hazards. Proper personal protective equipment including gloves and respirators should be used when handling dry powders. Storage should be in sealed containers under inert gas to prevent oxidation and aggregation. Colloidal suspensions require protection from light and may need stabilizers to prevent precipitation. Disposal should follow local regulations for heavy metal-containing nanomaterials.
B2B Procurement Guide
When procuring iridium nanoparticles, specify the desired particle size distribution, purity level (typically 99.9% or higher), and any surface modifications required. Consider the production method as it affects particle characteristics and batch consistency. For catalytic applications, surface area and active site density are critical parameters. For electronic applications, the presence of stabilizers or capping agents may need to be minimized. Always request comprehensive characterization data including TEM images and XRD patterns to verify nanoparticle quality.
Related Manufacturers
- 主营：全氟聚醚二醇、全氟三丁胺、聚硅氮烷、纳米铱粉、特种硅油、特种硅树脂
- 主营：纳米cu2o、纳米金粉
- 主营：高纯超细铜粉、钛锆铪钨铌、钴铬镍铝钛合金、纳米铂粉、纳米氧化锌粉末、纳米氧化铝、钛颗粒、纳米铁粉、纳米氮化硅、纳米硅粉、锰颗粒、铜颗粒、金属钙颗粒、纳米锡粉、纳米氧化锆、氧化铋、高纯超细钒粉、钴粉、碳化钨、碳化铬粉、钴铬铁镍铝、钛粉、碳化硼、高纯超细钼粉、超细氧化锌
- 主营：磁性微球、聚苯乙烯微球、荧光微球、金纳米颗粒、银纳米颗粒、纳米银粉、纳米铂粉、金纳米棒、金纳米粒子、磁性纳米颗粒、纳米铂金溶液、纳米磁珠、纳米金溶液、二氧化硅微球、聚乳酸微球、聚丙烯微球、聚乙烯微球、羧基磁珠、氨基磁珠、海藻酸钠微球、聚氯乙烯微球、pmma微球
- 主营：加热管、热电偶、高温线
- 主营：难熔合金熔炼、3D打印球形粉末、电弧合金熔炼、纳米粉体、稀土氧化物、镀膜材料、悬浮熔炼
- 主营：贵金属回收、钯回收、铑回收、铱回收、铂回收、钌回收
- 主营：铂废料、废铑渣、氧化钯、铂浆收购、回收钯盐、铂粉收购、铑粉回收、回收氯钯酸、废铑水收购、钯废料回收、钯树脂回收、热电偶收购、醋酸钯收购、回收铂铑丝、收购氯化铂、废铂催化剂、废钯碳催化剂、钯回收、铂回收、铑回收、镀金回收、镀银回收
- 主营：聚苯乙烯微球、二氧化硅微球、荧光微球、纳米磁珠、磁性纳米粒子、金纳米颗粒、银纳米颗粒、纳米银粉、纳米铂金溶液、纳米银线、银纳米线、金纳米粒子、纳米金溶液、聚丙烯微球、聚乙烯微球、海藻酸钠微球、量子点微球、量子点荧光微球、磁性荧光微球、聚氯乙烯微球、聚乳酸微球、聚四氟乙烯微球