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

Title: Synthesis of Pd9Ru@Pt nanoparticles for oxygen reduction reaction in acidic electrolytes

Journal Article · · Journal of Power Sources
 [1];  [2];  [1];  [1];  [3]
  1. National Chiao Tung Univ., Hsin-chu (Taiwan)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. National Synchrotron Radiation Research Center, Hsin-chu (Taiwan)

Nanoparticles of PdRu, Pd₃Ru, and Pd₉Ru are synthesized and impregnated on carbon black via a wet chemical reflux process. X-ray diffraction patterns of the as-synthesized samples, PdxRu/C (x=1/3/9), suggest succesful formation of alloy without presence of individual Pd and Ru nanoparticles. Images from transmission electron microscope confirm irregularly-shaped nanoparticles with average size below 3 nm. Analysis from extended X-ray absorption fine structure on both Pd and Ru K-edge absorption profiles indicate the Ru atoms are enriched on the surface of PdxRu/C. Among these samples, the Pd₉Ru/C exhibits the strongest electrocatalytic activity for oxygen reduction reaction (ORR) in an oxygen-saturated 0.1 M aqueous HClO₄ solution. Subsequently, the Pd₉Ru/C undegoes Cu under potential deposition, followed by a galvanic displacement reaction to deposit a Pt monolayer on the Pd₉Ru surface (Pd₉Ru@Pt). The Pd₉Ru@Pt reveals better ORR performance than that of Pt, reaching a mass activity of 0.38 mA μg⁻¹ Pt, as compared to that of commercially available Pt nanoparticles (0.107 mA μg⁻¹ Pt). Thus, the mechanisms responsible for the ORR enhancement are attributed to the combined effects of lattice strain and ligand interaction. In addition, this core-shell Pd₉Ru@Pt electrocatalyst represents a substantial reduction in the amount of Pt consumption and raw material cost.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1183838
Report Number(s):
BNL-107884-2015-JA; R&D Project: CO026; KC0304030
Journal Information:
Journal of Power Sources, Vol. 277, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

References (57)

Advanced PEFC development for fuel cell powered vehicles journal March 1998
Recent advances in non-precious metal catalysis for oxygen-reduction reaction in polymer electrolyte fuelcells journal January 2011
Quantum jumps in the PEMFC science and technology from the 1960s to the year 2000 journal December 2001
Review and analysis of PEM fuel cell design and manufacturing journal February 2003
Shape-controlled synthesis of platinum nanocrystals for catalytic and electrocatalytic applications journal February 2009
Kirkendall Effect and Lattice Contraction in Nanocatalysts: A New Strategy to Enhance Sustainable Activity journal August 2011
Fuel cells – a 21st century power system journal March 1998
Challenges for fuel cells in transport applications journal March 2000
Enhancement of the electrocatalytic O2 reduction on Pt–Fe alloys journal January 1999
Activity of ordered and disordered Pt-Co alloy phases for the electroreduction of oxygen in catalysts with multiple coexisting phases journal October 2007
Structurally ordered intermetallic platinum–cobalt core–shell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts journal October 2012
Mesoporous hollow PtCu nanoparticles for electrocatalytic oxygen reduction reaction journal January 2013
Compositional segregation in shaped Pt alloy nanoparticles and their structural behaviour during electrocatalysis journal June 2013
Improved Oxygen Reduction Activity on Pt3Ni(111) via Increased Surface Site Availability journal January 2007
Design of Ternary Nanoalloy Catalysts: Effect of Nanoscale Alloying and Structural Perfection on Electrocatalytic Enhancement journal October 2012
Ternary Pt−Fe−Co Alloy Electrocatalysts Prepared by Electrodeposition: Elucidating the Roles of Fe and Co in the Oxygen Reduction Reaction journal December 2010
Dealloyed Pt−Cu Core−Shell Nanoparticle Electrocatalysts for Use in PEM Fuel Cell Cathodes journal February 2008
Oxygen Reduction on Well-Defined Core−Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects journal December 2009
One-pot synthesis of core–shell-like Pt3Co nanoparticle electrocatalyst with Pt-enriched surface for oxygen reduction reaction in fuel cells journal January 2011
Pt-Decorated PdCo@Pd/C Core−Shell Nanoparticles with Enhanced Stability and Electrocatalytic Activity for the Oxygen Reduction Reaction journal December 2010
Core-Protected Platinum Monolayer Shell High-Stability Electrocatalysts for Fuel-Cell Cathodes journal October 2010
Electrochemical activity and stability of dealloyed Pt–Cu and Pt–Cu–Co electrocatalysts for the oxygen reduction reaction (ORR) journal January 2009
Lattice-strain control of the activity in dealloyed core–shell fuel cell catalysts journal April 2010
Dealloyed binary PtM3 (M=Cu, Co, Ni) and ternary PtNi3M (M=Cu, Co, Fe, Cr) electrocatalysts for the oxygen reduction reaction: Performance in polymer electrolyte membrane fuel cells journal January 2011
Dealloyed Pt2Os nanoparticles for enhanced oxygen reduction reaction in acidic electrolytes journal May 2014
Chemical Dealloying Mechanism of Bimetallic Pt-Co Nanoparticles and Enhancement of Catalytic Activity toward Oxygen Reduction journal April 2010
Investigating the activity enhancement on PtxCo1−x alloys induced by a combined strain and ligand effect journal January 2014
Reaction-Driven Restructuring of Rh-Pd and Pt-Pd Core-Shell Nanoparticles journal November 2008
Platinum Monolayer Electrocatalysts for O2 Reduction: Pt Monolayer on Carbon-Supported PdIr Nanoparticles journal November 2010
Enhanced electrocatalytic performance of Pt monolayer on nanoporous PdCu alloy for oxygen reduction journal October 2012
Highly stable Pt monolayer on PdAu nanoparticle electrocatalysts for the oxygen reduction reaction journal January 2012
Pt monolayer on Au-stabilized PdNi core–shell nanoparticles for oxygen reduction reaction journal November 2013
Pt Monolayer on Porous Pd−Cu Alloys as Oxygen Reduction Electrocatalysts journal July 2010
E LECTRONIC S TRUCTURE AND C ATALYSIS ON M ETAL S URFACES journal October 2002
Alloy catalysts designed from first principles journal October 2004
Modification of the surface electronic and chemical properties of Pt(111) by subsurface 3d transition metals journal June 2004
Bimetallic and Ternary Alloys for Improved Oxygen Reduction Catalysis journal November 2007
Mixed-Metal Pt Monolayer Electrocatalysts for Enhanced Oxygen Reduction Kinetics journal September 2005
PdRu/C catalysts for ethanol oxidation in anion-exchange membrane direct ethanol fuel cells journal November 2013
Methanol Oxidation Activity of PdRu Alloy Nanoparticles in Direct Methanol Fuel Cells journal January 2009
Mixed-phase PdRu bimetallic structures with high activity and stability for formic acid electrooxidation journal January 2012
Displacement reaction of Pt on carbon-supported Ru nanoparticles in hexachloroplatinic acids journal March 2011
The Pd-Ru system (palladium-ruthenium) journal October 1993
EQCM Study on Dissolution of Ruthenium in Sulfuric Acid journal January 2008
X-Ray Absorption Spectroscopic Studies of Catalytic Materials journal January 1988
Supported ?bimetallic cluster? catalysts journal May 1973
Electrochemical behaviour of palladium electrode: Oxidation, electrodissolution and ionic adsorption journal November 2008
Surface modification of commercial PtRu nanoparticles for methanol electro-oxidation journal October 2013
Oxygen reduction on a high-surface area Pt/Vulcan carbon catalyst: a thin-film rotating ring-disk electrode study journal January 2001
Surface Composition Effects in Electrocatalysis:  Kinetics of Oxygen Reduction on Well-Defined Pt 3 Ni and Pt 3 Co Alloy Surfaces journal November 2002
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs journal March 2005
Controlling the Catalytic Activity of Platinum-Monolayer Electrocatalysts for Oxygen Reduction with Different Substrates journal March 2005
Platinum Monolayer Fuel Cell Electrocatalysts journal November 2007
Tuning the Catalytic Activity of Ru@Pt Core–Shell Nanoparticles for the Oxygen Reduction Reaction by Varying the Shell Thickness journal January 2013
Kinetics of oxygen reduction reaction on nanosized Pd electrocatalyst in acid media journal October 2007
A Study of Bismuth Ruthenate as an Electrocatalyst for Bifunctional Air Electrodes journal January 1994
Oxygen Reduction on Platinum Low-Index Single-Crystal Surfaces in Sulfuric Acid Solution: Rotating Ring-Pt(hkl) Disk Studies journal March 1995

Cited By (6)

Comparison of the Activity of Pd–M (M: Ag, Co, Cu, Fe, Ni, Zn) Bimetallic Electrocatalysts for Oxygen Reduction Reaction journal April 2017
Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications journal July 2018
Metal-Organic Complexes, [Co(bpy) 3 ](NO 3 ) 2 and [Co(bpy) 2 NO 3 ]NO 3 · 5H 2 O, for Oxygen Reduction Reaction journal January 2017
Conformal Deposition of RuO 2 on Cu via a Galvanic Cementation Reaction journal January 2019
Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets journal August 2018
Core-Shell Pd 9 Ru@Pt on Functionalized Graphene for Methanol Electrooxidation journal January 2018