Bimetallic nanorods

Alloys Alloys are an important class of nanorods, because of their applications in direct methanol fuel cells, electrooxidation of methanol, etc. The list of nanorods of alloys that have been synthesized include bimetallic nanorods such as Ag-Cu, Ag-Ni, Fe-Ni, Fe-Pt, Co-Pt, Fe-B, Zn-Ni, Pt-Ru, Pt-Ni, Si-Ge, Se-Te, Ni-Co, and Cu-Co, as well as ternary alloys such as Pt-Ru-Ni. 

Transition-metal NPs are easily prepared by the simple reduction of metal compounds or the decomposition of organometallic compounds in the zero oxidation state dissolved in the imidazolium ILs (Scheme 6.1 and Table 6.1). FunctionaUzed imidazoUum or pyridinium ILs such as those containing thiol, alcohol or cyano groups have also been used for the formation and stabilization of Ni, Ag and Au NPs [61-75], Bimetallic nanorods, hyperbranched nanorods, and NPs with different CoPt compositions have also been easily prepared in BMl.NTf2 [76]. 

In addition, surfactants as capping agents are indispensable for preparing bimetallic nanorods and nanowires. In the synthesis of Pt-Ag alloy nanowires in a... 

Some work has also been recently carried out on the solution synthesis of bimetallic nanorods, employing gold nanorods as preformed cores. Jang and co-workers synthesized Au Ag core-shell nanorods using the electrochemical method to obtain the gold nanorods and the seed-mediated mechanism to get the desired core-shell structure. The combination of the different optical resonances from the core and the shell metals leads to a quite spectacular optical spectrum from these composite, anisotropic nanoparticles. 

Synthetic nanoscale self-propelled objects have been constructed and studied recently [107-109]. The motors are made from bimetallic Pt-Au nanorods immersed in a H2O2 solution, which supplies the chemical energy to drive the motion. The catalytic reaction 2H202(ij > 02(g) I 2H20(ij occurs at the Pt... 

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