What is a catalyst in chemistry? Learn the catalyst definition, as well as the different types of catalysts, their defining characteristics and main functions. Related to this Question What is a catalyst? How do catalysts work? What are some examples in which catalysts ...
It is also relevant to understanding other important phenomena, including corrosion and tribology, or the interaction of surfaces in motion. "We're revisiting some very well-established assumptions in understanding how catalysts work and, more generally, how molecules interact with solids," Mavrikakis ...
safety and clearance concerns. Metals in the nanometer scale range have special properties and penetrations, making them very powerful catalysts that can trigger undesired reaction. Nowadays, there are large concerns regarding safety of specifically metal nanoparticles and nanoparticles in general. ...
Although sulfate is formed by O_2 ingress into a converter, it will also be present on any Claus catalyst as a result of the "natural" chemistry of H_2S/SO_2 conversion. Hence, the presence of sulfate on a catalyst is not reason enough to decide on changing out a catalyst. An ...
Catalysts Chemical reactions are commonplace in studies in physics, chemistry and biology. Whether through the combustion of fuel in an engine or photosynthesis in a plant cell, reactions are integral. Additionally, reactions are carried out (or sped up) in the presence of catalysts. For instance...
Context: “In my chemistry class, I embarked on an independent research project exploring the efficiency of various catalysts in hydrogen fuel cells. The challenge was not only to understand the complex chemistry behind catalysis but also to design an experiment that could measure efficiency with ...
The need to limit antibiotic therapy due to the spreading resistance of pathogenic microorganisms to these medicinal substances stimulates research on new therapeutic agents, including the treatment and prevention of animal diseases. This is one of the g
Since the pores in a particular zeolite are of a fixed size and shape, zeolite catalysts can work selectively on certain molecules, which is why they're sometimes referred to as shape-selective catalysts (they can select the molecules they work on in other ways beside shape and size, however...
Metal oxide aerogels are made from metal oxides and are used as catalysts for chemical transformations. They are also used in the production of explosives and carbon nanotubes, and these aerogels can even be magnetic. What sets metal oxide aerogels such as iron oxide and chromia apart from their...
The rapid development of nanotechnology has sparked great interest in nanomaterials, which are excellent adsorbents, catalysts and sensors due to their large specific surface area and high reactivity. Several natural nanomaterials have been shown to have strong antimicrobial properties. These include, for...