Kinetic studies of restricted geometries are not only essential for a
better understanding of the chemical reactions in nanostructures but a
lso help in designing the nanosystem to carry out efficient catalytic
or photocatalytic processes. There are significant deviations in the k
inetic behavior of finite systems compared to those of infinite system
s. This review article surveys the most recent status of the theoretic
al and experimental studies in this novel field of modern chemistry. V
arious literature approaches for understanding the kinetics and mechan
isms of chemical reactions in nanostructures are considered and the ki
netic behaviors of chemical reactions taking place in finite spaces ar
e compared to those of classical infinite spaces. In particular, we ex
amine processes occurring in the interior of semiconductor nanoparticl
es and on their surfaces. An effort has also been made to address the
models employed for understanding the kinetic peculiarities of the pro
cesses with participation of nanoparticles together with the parameter
s that control these processes.