Solvothermal synthesis of Pt-Pd alloys with selective shapes and their enhanced electrocatalytic activities.

@article{Zhang2012SolvothermalSO,
  title={Solvothermal synthesis of Pt-Pd alloys with selective shapes and their enhanced electrocatalytic activities.},
  author={Zhi-Cheng Zhang and Junfeng Hui and Zhenguo Guo and Qiyu Yu and Biao Xu and Xin Zhang and Zhi-Chang Liu and Chunlong Xu and Jingsong Gao and Xun Wang},
  journal={Nanoscale},
  year={2012},
  volume={4 8},
  pages={
          2633-9
        }
}
Pt-Pd bimetallic alloy nanostructures with highly selective morphologies such as cube, bar, flower, concave cube, and dendrite have been achieved through a facile one-pot solvothermal synthesis. The effects of shape-controllers (sodium dodecyl sulfate (SDS), ethylenediamine-tetraacetic acid disodium salt (EDTA-2Na), NaI) and solvents (water/DMF) on the morphologies were systematically investigated. The electrocatalytic activities of these Pt-Pd alloy nanostructures toward formic acid oxidation… 

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References

SHOWING 1-10 OF 37 REFERENCES
Shape-selective synthesis and facet-dependent enhanced electrocatalytic activity and durability of monodisperse sub-10 nm Pt-Pd tetrahedrons and cubes.
TLDR
These alloy nanocrystals showed facet-dependent enhanced electrocatalytic activity and durability for methanol electrooxidations with commercial Pt/C catalyst as a reference.
Composition-Controlled Synthesis of Bimetallic PdPt Nanoparticles and Their Electro-oxidation of Methanol
PdPt alloy nanoparticles (NPs) are promising catalysts for various chemical reactions because of the presence of powerful catalytic components of Pt and Pd on the surface of one nanostructure. In
Pd-Pt random alloy nanocubes with tunable compositions and their enhanced electrocatalytic activities.
Monodisperse, highly-selective sub-10 nm Pd-Pt random alloy nanocubes have been successfully synthesized in aqueous solution, and the electrocatalytic activity of these Pd-Pt alloys towards formic
Shape and composition-controlled platinum alloy nanocrystals using carbon monoxide as reducing agent.
TLDR
This GRAILS method is a general approach to the preparation of uniform shape and composition-controlled Pt alloy nanocrystals with cubic and octahedral morphologies under the same kind of reducing reaction condition.
Synthesis and oxygen reduction activity of shape-controlled Pt(3)Ni nanopolyhedra.
TLDR
This work reports a new wet-chemical approach of preparing monodisperse Pt(3)Ni nanoctahedra and nanocubes terminated with {111} and {100} facets, respectively, and shows that the ORR activity on the Pt( 3) Ni nanoct ahedra is approximately 5-fold higher than that of nanoc tubes with a similar size.
Pt-Cu and Pt-Pd-Cu concave nanocubes with high-index facets and superior electrocatalytic activity.
TLDR
The HIF-enclosed CNCs showed superior activities to (100)-enclosed NC catalysts for methanol oxidations owing to the modification of both the surface electronic structures and the surface atomic arrangements.
Solution-based evolution and enhanced methanol oxidation activity of monodisperse platinum-copper nanocubes.
TLDR
These cubic Pt-Cu nanocrystals terminated with {100} facets demonstrated a superior catalytic activity towards methanol oxidation compared to similar sized Pt- Cu and Pt nanospheres.
Pd cluster nanowires as highly efficient catalysts for selective hydrogenation reactions.
TLDR
The highly selective one-pot synthesis of monodisperse Pd cluster nanowires in aqueous solution is reported, which consist of interconnected nanoparticles and may serve as highly active catalysts because of the enrichment of high index facets on the surface.
Facile synthesis of Pd-Pt alloy nanocages and their enhanced performance for preferential oxidation of CO in excess hydrogen.
TLDR
It is found that the rate of galvanic replacement and the rates of coreduction played important roles in controlling the morphology of resultant Pd-Pt alloy nanocages, which exhibited both enhanced activity and selectivity for the preferential oxidation (PROX) of CO in excess hydrogen than those of Pd nanocubes and the commercial Pt/C.
...
1
2
3
4
...