Breeder reactors were developed to allow use of non-fissile or fertile fuel, such as uranium-238 and thorium-232, instead of fissile fuel, such as uranium-235 and plutonium-239. They do have fissile fuel in them, but they use its neutron flux to convert the non-fissile (fertile) fuel into fissile form, extending the lifespan of the core.
Most nuclear reactors are thermal-neutron reactors. A few fast breeder reactors have been built, but not many.
The breeder reactor produce more fissile fuel than what is consumed while this is not the case for other nuclear reactors.
No, plutonium is obtained in all the types of nuclear reactors.
You can't compare and contrast nuclear reactors and breeder reactors, any more than you can compare a lion with a mammal. A lion is one example of many mammals; a breeder reactor is just one example of many types of nuclear reactor.
No, a breeder nuclear reactor does not typically use a moderator. Breeder reactors are designed to produce more fissile material than they consume by using fast neutrons to convert non-fissile isotopes into fissile ones without slowing down the neutrons.
A breeder reactor generates (in a way) new fuel, sometimes more fuel than it uses, by converting non-fissionable isotopes into fissionable isotopes, through neutron capture.
Not as fuel, but it can be used in breeder reactors as breeding material to make fissile Uranium-233.
They all use nuclear fission
Breeder reactors are used to convert non-fissile isotopes (such as U-238) into fissile isotopes (such as Pu-239) through neutron capture reactions, thereby producing additional fuel for nuclear reactors while generating energy. This process allows for the sustainable use of nuclear energy by recycling and reusing nuclear fuel.
Uranium-238 can be used efficiently in breeder reactors; plutonium is obtained and Pu is a fissile material in situ.
You can't compare and contrast nuclear reactors and breeder reactors, any more than you can compare a lion with a mammal. A lion is one example of many mammals; a breeder reactor is just one example of many types of nuclear reactor.
Breeder reactors are not widely used in the nuclear power industry due to concerns about safety, high costs of construction and operation, potential for nuclear proliferation, and public perception of nuclear energy.