skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Intermetallic Pd3Pb nanocubes with high selectivity for the 4-electron oxygen reduction reaction pathway

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/c9nr09759g· OSTI ID:1659426

Pd-Based nanoparticles are excellent alternatives to the typically used Pt-based materials that catalyze fuel cell reactions. Specifically, Pd-based intermetallic nanomaterials have shown great promise as electrocatalysts for the oxygen reduction reaction (ORR) in alkaline media; however, their synthesis remains a challenge and shape-controlled nanoparticles are limited. Here, a low-temperature approach to intermetallic Pd3Pb nanocubes is demonstrated and their electrocatalytic properties evaluated for the ORR. The intermetallic Pd3Pb nanocubes outperformed all reference catalysts, with a mass activity of 154 mA mgPd–1 which is a 130% increase in activity compared to the commercial Pd/C reference and a 230% increase compared to Pd nanocubes. Tafel analysis reveals that the Pd3Pb nanocubes are highly selective for the 4-electron reduction pathway, with minimal HO2 formation. Density functional theory (DFT) calculations show that the increased activity for the intermetallic nanocubes compared to Pd is likely due to the weakening of OH* adsorption, decreasing the required overpotential. These results show that intermetallic Pd3Pb nanocubes are highly efficient for the 4-electron pathway of the ORR and could inspire the study of other shape-controlled intermetallics as catalysts for fuel cell applications.

Research Organization:
Indiana Univ., Bloomington, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Welch Foundation; Texas Advanced Computing Center; National Natural Science Foundation of China (NSFC); China Scholarship Council (CSC)
Grant/Contract Number:
SC0018961; 201806860028
OSTI ID:
1659426
Alternate ID(s):
OSTI ID: 1582679
Journal Information:
Nanoscale, Vol. 12, Issue 4; ISSN 2040-3364
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

References (60)

Structurally ordered intermetallic platinum–cobalt core–shell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts journal October 2012
Generalized Gradient Approximation Made Simple journal October 1996
Achieving Highly Durable Random Alloy Nanocatalysts through Intermetallic Cores journal March 2019
Poly(vinyl pyrrolidone):  A Dual Functional Reductant and Stabilizer for the Facile Synthesis of Noble Metal Nanoplates in Aqueous Solutions journal September 2006
Synthesis of nearly monodisperse palladium (Pd) nanoparticles by using oleylamine and trioctylphosphine mixed ligands journal April 2009
Recent Advances of Structurally Ordered Intermetallic Nanoparticles for Electrocatalysis journal March 2018
Insight on Tafel slopes from a microkinetic analysis of aqueous electrocatalysis for energy conversion journal September 2015
Intermetallic Pd 3 Pb nanowire networks boost ethanol oxidation and oxygen reduction reactions with significantly improved methanol tolerance journal January 2017
Effect of ordering of PtCu 3 nanoparticle structure on the activity and stability for the oxygen reduction reaction journal January 2014
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013
Effects of ensembles, ligand, and strain on adsorbate binding to alloy surfaces journal November 2018
Facile Synthesis of Various Phosphine-Stabilized Monodisperse Palladium Nanoparticles through the Understanding of Coordination Chemistry of the Nanoparticles journal May 2004
Coupled s-p-d Exchange in Facet-Controlled Pd3Pb Tripods Enhances Oxygen Reduction Catalysis journal February 2018
Synthesis of Monodisperse Palladium Nanoparticles journal September 2003
Intermetallic Nanocrystals: Syntheses and Catalytic Applications journal February 2017
Synthesis, Shape Control, and Methanol Electro-oxidation Properties of Pt–Zn Alloy and Pt 3 Zn Intermetallic Nanocrystals journal May 2012
Pd Nanoparticle Assemblies as Efficient Catalysts for the Hydrogen Evolution and Oxygen Reduction Reactions: Pd Nanoparticle Assemblies as Efficient Catalysts for the Hydrogen Evolution and Oxygen Reduction Reactions journal January 2017
Electrocatalysis on Shape-Controlled Palladium Nanocrystals: Oxygen Reduction Reaction and Formic Acid Oxidation journal February 2013
Synthesis of Pd nanocrystals enclosed by {100} facets and with sizes <10 nm for application in CO oxidation journal October 2010
Ligand-Induced Structural Evolution of Pt 55 Nanoparticles: Amine versus Thiol journal October 2011
Building Random Alloy Surfaces from Intermetallic Seeds: A General Route to Strain-Engineered Electrocatalysts with High Durability journal June 2019
High-Performance Pd 3 Pb Intermetallic Catalyst for Electrochemical Oxygen Reduction journal March 2016
Preparation and electrochemical characterization of palladium single crystal electrodes in 0.1M H2SO4 and HClO4 journal May 2007
Shape-Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics? journal December 2008
Size-Controlled Synthesis of Highly Stable and Active Pd@SiO 2 Core–Shell Nanocatalysts for Hydrogenation of Nitrobenzene journal April 2013
Pd−Fe Nanoparticles as Electrocatalysts for Oxygen Reduction journal March 2006
Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation journal December 2017
Generalized Gradient Approximation Made Simple [Phys. Rev. Lett. 77, 3865 (1996)] journal February 1997
Enhancement of the electrocatalytic oxygen reduction reaction on Pd3Pb ordered intermetallic catalyst in alkaline aqueous solutions journal May 2016
3D Robust Carbon Aerogels Immobilized with Pd 3 Pb Nanoparticles for Oxygen Reduction Catalysis journal March 2018
Origin of Enhanced Activity in Palladium Alloy Electrocatalysts for Oxygen Reduction Reaction journal June 2007
Intermetallic structures with atomic precision for selective hydrogenation of nitroarenes journal December 2017
Ligand-Controlled Co-reduction versus Electroless Co-deposition: Synthesis of Nanodendrites with Spatially Defined Bimetallic Distributions journal November 2014
Palladium nanocubes enclosed by (100) planes as electrocatalyst for alkaline oxygen electroreduction journal March 2012
Au@Pt dendrimer encapsulated nanoparticles as model electrocatalysts for comparison of experiment and theory journal January 2012
Rational design of ordered Pd–Pb nanocubes as highly active, selective and durable catalysts for solvent-free benzyl alcohol oxidation journal January 2019
Shape-dependent electrocatalysis: formic acid electrooxidation on cubic Pd nanoparticles journal January 2012
Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals journal March 1999
Electrocatalytic Activity and Stability of Ordered Intermetallic Palladium-Iron Nanoparticles toward Oxygen Reduction Reaction journal December 2015
Fully Tensile Strained Pd 3 Pb/Pd Tetragonal Nanosheets Enhance Oxygen Reduction Catalysis journal January 2019
Electrochemical Activation of CO 2 through Atomic Ordering Transformations of AuCu Nanoparticles journal June 2017
PdCu@Pd Nanocube with Pt-like Activity for Hydrogen Evolution Reaction journal February 2017
How copper catalyzes the electroreduction of carbon dioxide into hydrocarbon fuels journal January 2010
Manipulating Local Ligand Environments for the Controlled Nucleation of Metal Nanoparticles and their Assembly into Nanodendrites journal October 2012
Pd–M/C (M = Pd, Cu, Pt) Electrocatalysts for Oxygen Reduction Reaction in Alkaline Medium: Correlating the Electronic Structure with Activity journal March 2017
Surface Pourbaix diagrams and oxygen reduction activity of Pt, Ag and Ni(111) surfaces studied by DFT journal January 2008
Mechanism of Oxygen Reduction Reaction on Pt(111) in Alkaline Solution: Importance of Chemisorbed Water on Surface journal July 2016
Active Sites for the Oxygen Reduction Reaction on the Low and High Index Planes of Palladium journal June 2009
Facet-Dependent Deposition of Highly Strained Alloyed Shells on Intermetallic Nanoparticles for Enhanced Electrocatalysis journal August 2017
Random Alloyed versus Intermetallic Nanoparticles: A Comparison of Electrocatalytic Performance journal July 2018
Concavity Tuning of Intermetallic Pd–Pb Nanocubes for Selective Semihydrogenation Catalysis journal August 2018
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode journal November 2004
Universality in Oxygen Reduction Electrocatalysis on Metal Surfaces journal July 2012
Electrochemical reduction of oxygen on palladium nanocubes in acid and alkaline solutions journal January 2012
Alloy vs. intermetallic compounds: Effect of the ordering on the electrocatalytic activity for oxygen reduction and the stability of low temperature fuel cell catalysts journal November 2017
Three-Dimensional Pd 3 Pb Nanosheet Assemblies: High-Performance Non-Pt Electrocatalysts for Bifunctional Fuel Cell Reactions journal April 2018
Structural dependence of oxygen reduction reaction on palladium nanocrystals journal January 2011
Freestanding palladium nanosheets with plasmonic and catalytic properties journal December 2010
A General Strategy for Preparation of Pt 3d-Transition Metal (Co, Fe, Ni) Nanocubes journal December 2009
Manipulating Local Ligand Environments for the Controlled Nucleation of Metal Nanoparticles and their Assembly into Nanodendrites journal October 2012