3 Catalysts via Atomic Layer Deposition
79
Fig. 3.4 a, b Pt n /SmMn 2 O 5 for CO oxidation and c, d Pd 1 /graphene for selective hydrogenation of
1,3-butadiene. a, b are reprinted with permission from Ref. [64]. Copyright 2018. Royal Society of
Chemistry. c, d are reprinted with permission from Ref. [66]. Copyright 2015. American Chemical
Society
to 10.8 mmol h
−1 , which is higher than other referred samples due to the coordinated
donor nitrogen in the active site.
3.2.3 Bimetallic Core–Shell and Alloy Nanoparticles
Synthesis
By adjusting ALD processes on the monometallic catalysts, it provides ways to
synthesize bimetallic core–shell and alloy NPs with controlled sizes and compositions. Researchers have synthesized multilayers and stacking structures to improve
the performance of semiconductor materials, leading to the concept of core–shell
NPs. In recent years, bimetallic nanoparticle catalysts fabricated with ALD methods
have aroused researchers’ interests. Generally, core–shell NPs have enhanced performance because of the interaction, electronic modification, or lattice mismatch
between two materials. Compared with their corresponding single metal particles,
79
Fig. 3.4 a, b Pt n /SmMn 2 O 5 for CO oxidation and c, d Pd 1 /graphene for selective hydrogenation of
1,3-butadiene. a, b are reprinted with permission from Ref. [64]. Copyright 2018. Royal Society of
Chemistry. c, d are reprinted with permission from Ref. [66]. Copyright 2015. American Chemical
Society
to 10.8 mmol h
−1 , which is higher than other referred samples due to the coordinated
donor nitrogen in the active site.
3.2.3 Bimetallic Core–Shell and Alloy Nanoparticles
Synthesis
By adjusting ALD processes on the monometallic catalysts, it provides ways to
synthesize bimetallic core–shell and alloy NPs with controlled sizes and compositions. Researchers have synthesized multilayers and stacking structures to improve
the performance of semiconductor materials, leading to the concept of core–shell
NPs. In recent years, bimetallic nanoparticle catalysts fabricated with ALD methods
have aroused researchers’ interests. Generally, core–shell NPs have enhanced performance because of the interaction, electronic modification, or lattice mismatch
between two materials. Compared with their corresponding single metal particles,