Ultrasmall Pd‐Cu‐Pt Trimetallic Twin Icosahedrons Boost the Electrocatalytic Performance of Glycerol Oxidation at the Operating Temperature of Fuel Cells

@article{Yang2020UltrasmallPT,
  title={Ultrasmall Pd‐Cu‐Pt Trimetallic Twin Icosahedrons Boost the Electrocatalytic Performance of Glycerol Oxidation at the Operating Temperature of Fuel Cells},
  author={Fang Yang and Jinyu Ye and Qiang Yuan and Xiaotong Yang and Zixuan Xie and Fenglin Zhao and Zhiyou Zhou and Lin Gu and Xun Wang},
  journal={Advanced Functional Materials},
  year={2020},
  volume={30}
}
Recently, in order to improve the energy conversion efficiency of direct polyol fuel cells, the engineering of effective Pd‐ and/or Pt‐based electrocatalysts to rupture CC bonds has received increasing attention. Here, an example is shown to synthesize highly uniform sub‐10 nm Pd‐Cu‐Pt twin icosahedrons by controlling the nucleation phase. Because of the synergies of the electronic effect, synergistic effect, geometric effect, and abundant surface active sites originating from the formation of… 
53 Citations
Interface‐Rich Three‐Dimensional Au‐Doped PtBi Intermetallics as Highly Effective Anode Catalysts for Application in Alkaline Ethylene Glycol Fuel Cells
The preparation of metal electrocatalysts with excellent comprehensive properties for application in alcohol fuel cells is an urgent issue. This study reports a novel 3D Au‐doped PtBi intermetallic
Assembly of Alloyed PdCu Nanosheets and Their Electrocatalytic Oxidation of Ethanol.
Two-dimensional (2D) nanostructured catalysts have attracted great attention in many important fields, including energy applications and chemical industry. In this study, PdCu nanosheet assemblies
High‐Temperature Confinement Synthesis of Supported Pt–Ni Nanoparticles for Efficiently Catalyzing Oxygen Reduction Reaction
Developing efficient Pt‐based alloy as oxygen reduction reaction (ORR) electrocatalysts is critical for practical applications of fuel cells. High‐temperature reduction technology can improve the
Realizing a CO-free pathway and enhanced durability in highly dispersed Cu-doped PtBi nanoalloys towards methanol full electrooxidation
Pt is the most active anode electrocatalyst for the oxidation of methanol in direct methanol fuel cells (DMFCs); however, its weak resistance to CO or CO-like species poisoning has been a matter of
Hexagonal PtBi Intermetallic Inlaid with Sub-Monolayer Pb Oxyhydroxide Boosts Methanol Oxidation.
Engineering multicomponent nanocatalysts is effective to improve electrocatalysis in many applications, yet it remains a challenge in constructing well-defined multimetallic active sites at the
MOF-assisted synthesis of octahedral carbon-supported PtCu nanoalloy catalysts for an efficient hydrogen evolution reaction
Highly efficient and stable Pt-based electrocatalysts have attracted significant attention for hydrogen generation via water splitting. However, the main obstacles in their industrial application are
Fluorination-enabled interface of PtNi electrocatalysts for high-performance high-temperature proton exchange membrane fuel cells
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) bring new opportunities for portable power generation due to their outstanding advantages such as high tolerance to fuel/air
Highly stable Pt3Ni ultralong nanowires tailored with trace Mo for the ethanol oxidation
Pt3Ni alloy structure is an effective strategy to accelerate ethanol oxidation reaction (EOR), while the stability in acid electrolyte is the fatal weakness and the current density still needs to be
The electrochemical reforming of glycerol at Pd nanocrystals modified ultrathin NiO nanoplates hybrids: An efficient system for glyceraldehyde and hydrogen coproduction
The glycerol electro-oxidation reaction (GEOR) is a green and promising method for the glyceraldehyde production. In this work, Pd nanocrystals (Pd-NCs) modified ultrathin NiO nanoplates (NiO-uNPs)
Molybdenum Carbide-PtCu Nanoalloy Heterostructures on MOF-Derived Carbon toward Efficient Hydrogen Evolution.
TLDR
Owing to its swift kinetics and outstanding specific activity, the PtCu-Mo2 C heterostructure with charge redistribution exhibits high hydrogen evolution reaction (HER) catalytic activity in acidic media, which is approximately six times that of commercial Pt/C catalysts.
...
...

References

SHOWING 1-10 OF 73 REFERENCES
Polyhedron-Assembled Ternary PtCuCo Nanochains: Integrated Functions Enhance the Electrocatalytic Performance of Methanol Oxidation at Elevated Temperature.
TLDR
The structure characterizations show that high density of surface active sites, d-band center of Pt downshift, moderate strain effect and synergetic effect are jointly responsible to the enhanced electrocatalytic performance of one-dimensional ternary PtCuCo nanochains.
Screw-like PdPt nanowires as highly efficient electrocatalysts for methanol and ethylene glycol oxidation
The performance of Pd and Pt based catalysts for electrocatalysis is closely correlated with their surface structures and compositions. In this paper we developed an electrochemical route to
Five-fold twinned Pd2NiAg nanocrystals with increased surface Ni site availability to improve oxygen reduction activity.
TLDR
This work presents the synthesis of five-fold twinned Pd2NiAg nanocrystals (NCs) with a Ni-terminal surface which exhibit excellent electrocatalytic performance for ORR in alkaline media, even better than the performance of the commercial Pt/C catalyst.
Surface-modulated palladium-nickel icosahedra as high-performance non-platinum oxygen reduction electrocatalysts
TLDR
Simulations reveal that the Pd icosahedra decorated with Ni atoms emerged in the subsurface can weaken the interaction between the adsorbed oxygen and Pd (111) facet and enhance the ORR activities due to an obvious shift of d-band center.
PtCuNi Tetrahedra Catalysts with Tailored Surfaces for Efficient Alcohol Oxidation.
TLDR
Electrocatalytic studies demonstrate that Pt56Cu28Ni16 exhibits exceptional MOR and EOR specific activities and record high mass activity, comparing favorably with the best MOR or EOR Pt alloy-based catalysts reported to date.
Replicating the Defect Structures on Ultrathin Rh Nanowires with Pt to Achieve Superior Electrocatalytic Activity toward Ethanol Oxidation
Metal nanostructures with an ultrathin Pt skin and abundant surface defects are attractive for electrocatalytic applications owing to the increased utilization efficiency of Pt atoms and the presence
Active Pt3Ni (111) Surface of Pt3Ni Icosahedron for Oxygen Reduction.
TLDR
This work provides an efficient way to synthesis of activity Pt3M icosahedra by the one-pot hydrothermal method in the presence of glucosamine which can well adjust the reduction rate of Pt4+ and efficiently control the morphology of final catalysts.
Icosahedral platinum alloy nanocrystals with enhanced electrocatalytic activities.
TLDR
Density functional theory calculations and molecular dynamics simulations indicate that the area-specific activity of icosahedral Pt(3)Ni catalysts was about 50% higher than that of the octahedral Pt (3) Ni catalysts, even though both shapes are bound by {111} facets.
Unlocking the door to highly active ORR catalysts for PEMFC applications: polyhedron-engineered Pt-based nanocrystals
Proton exchange membrane fuel cells (PEMFCs) are considered to be an important low-carbon energy conversion technology, which has shown impressive performance improvement in the past decades.
...
...