Nanoparticle-based catalysis is a well-established field of research. In this application nanoparticles can play two major roles:
Nanoparticles are used in catalysis primarily due to the increased material surface area which can be achieved through breaking the material down into smaller parts. This enables more effective particle interaction with the surrounding molecules.
Catalytic performance (i.e. high activity and selectivity for the desired product) often corresponds to specific particle size, shape and architecture. This is most likely due to complex correlations between these parameters and specific electronic states, lattice strain, exposed crystallographic planes etc. of the particles that are responsible for the desired catalytic behavior.
Typically, nanoparticle suppliers provide non-uniform or polydisperse (CV values >20%) material with a range of particle sizes, shapes and architectures. The material properties (e.g. electronic states) vary in polydisperse materials and therefore their activity towards target reactions is substantially diminished. Moreover, undesired particles can catalyze side reactions, resulting in the fall of catalyst selectivity. The use of such materials in catalysis is therefore ineffective and wasteful.
Particle Works offers a range of highly monodisperse (CV values <10%) nanoparticles for applications in catalysis. These performance materials bring benefits such as:
|Gold Nanoparticles||When processing in organic solvent is required, we recommend Dodecanethiol coated Gold nanoparticles (hexane, toluene, dichloromethane)|
|When processing in aqueous solvent is required, we recommend to use PEG functionalized Gold nanoparticles|
|Quantum dots||For processing in organic solvents, we recommend CdSe quantum dots in toluene|
|When processing in aqueous solvent is required, we recommend mercaptosuccinic acid functionalized CdSe quantum dots (available on request only)|
|Magnetic nanoparticles||For magnetic separation and inductive heating applications, we recommend Oxidatively Stable Cobalt Nanoparticles|