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Title: Role of Chemical Composition in the Enhanced Catalytic Activity of Pt-Based Alloyed Ultrathin Nanowires for the Hydrogen Oxidation Reaction under Alkaline Conditions

Journal Article · · ACS Catalysis
 [1];  [1];  [1];  [1];  [2];  [2];  [3];  [3];  [4]
  1. Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
  2. Center for Functional Nanomaterials, Brookhaven National Laboratory, Building 735, Upton, New York 11973, United States
  3. Chemistry Department, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
  4. Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States, Condensed Matter Physics and Materials Sciences Division, Brookhaven National Laboratory, Building 480, Upton, New York 11973, United States

With the increased interest in the development of hydrogen fuel cells as a plausible alternative to internal combustion engines, recent work has focused on creating alkaline fuel cells (AFC), which employ an alkaline environment. Working in alkaline as opposed to acidic media yields a number of tangible benefits, including (i) the ability to use cheaper and plentiful precious-metal-free catalysts, due to their increased stability, (ii) a reduction in the amount of degradation and corrosion of Pt-based catalysts, and (iii) a longer operational lifetime for the overall fuel cell configuration. However, in the absence of Pt, no catalyst has achieved activities similar to those of Pt. Herein, we have synthesized a number of crystalline ultrathin PtM alloy nanowires (NWs) (M = Fe, Co, Ru, Cu, Au) in order to replace a portion of the costly Pt metal without compromising on activity while simultaneously adding in metals known to exhibit favorable synergistic ligand and strain effects with respect to the host lattice. In fact, our experiments confirm theoretical insights about a clear and correlative dependence between measured activity and chemical composition. We have conclusively demonstrated that our as-synthesized alloy NW catalysts yield improved hydrogen oxidation reaction (HOR) activities as compared with a commercial Pt standard as well as with our as-synthesized Pt NWs. The Pt7Ru3 NW system, in particular, quantitatively achieved an exchange current density of 0.493 mA/cm2, which is higher than the corresponding data for Pt NWs alone. In addition, the HOR activities follow the same expected trend as their calculated hydrogen binding energy (HBE) values, thereby confirming the critical importance and correlation of HBE with the observed activities.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC-00112704; SC00112704
OSTI ID:
1329484
Alternate ID(s):
OSTI ID: 1257946
Report Number(s):
BNL-112207-2016-JA
Journal Information:
ACS Catalysis, Journal Name: ACS Catalysis Vol. 6 Journal Issue: 6; ISSN 2155-5435
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 113 works
Citation information provided by
Web of Science

References (58)

One-pot surfactant-free synthesis of porous PtAu alloyed nanoflowers with enhanced electrocatalytic activity for ethanol oxidation and oxygen reduction reactions journal January 2016
Tailoring the composition of ultrathin, ternary alloy PtRuFe nanowires for the methanol oxidation reaction and formic acid oxidation reaction journal January 2015
Designing Enhanced One-Dimensional Electrocatalysts for the Oxygen Reduction Reaction: Probing Size- and Composition-Dependent Electrocatalytic Behavior in Noble Metal Nanowires journal October 2012
Facile synthesis of PtCu nanowires with enhanced electrocatalytic activity journal May 2015
Activity Descriptor Identification for Oxygen Reduction on Platinum-Based Bimetallic Nanoparticles: In Situ Observation of the Linear Composition–Strain–Activity Relationship journal January 2015
Structure–property–activity correlations of Pt-bimetallic nanoparticles: A theoretical study journal January 2013
The effect of Mn addition on the promotion of oxygen reduction reaction performance for PtCo/C catalysts journal August 2013
Probing Ultrathin One-Dimensional Pd–Ni Nanostructures As Oxygen Reduction Reaction Catalysts journal July 2014
Electrodeposited Pt and PtRu Nanoparticles without Hydrogen Evolution Reaction on Mesoporous Carbon for Methanol Oxidation journal October 2014
The development of mixture, alloy, and core-shell nanocatalysts with nanomaterial supports for energy conversion in low-temperature fuel cells journal September 2013
Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction Reaction journal September 2013
On the behavior of CO oxidation on shape-controlled Pt nanoparticles in alkaline medium journal March 2014
A comparative study of PtCo, PtCr, and PtCoCr catalysts for oxygen electro-reduction reaction journal July 2010
PtCu 3 , PtCu and Pt 3 Cu Alloy Nanoparticle Electrocatalysts for Oxygen Reduction Reaction in Alkaline and Acidic Media journal January 2012
Hierarchical Nanoporous PtFe Alloy with Multimodal Size Distributions and Its Catalytic Performance toward Methanol Electrooxidation journal January 2012
Alloy catalysts designed from first principles journal October 2004
Electrocatalytic mediation of oxidation of H2 at gold by chemisorbed states of anions journal January 1990
Hydrogen on and in Selected Overlayer Near-Surface Alloys and the Effect of Subsurface Hydrogen on the Reactivity of Alloy Surfaces journal February 2010
Monolayer bimetallic surfaces: Experimental and theoretical studies of trends in electronic and chemical properties journal May 2008
Alkaline direct alcohol fuel cells journal June 2010
Hydrogen adsorption, absorption and diffusion on and in transition metal surfaces: A DFT study journal April 2012
New insights into the electrochemical hydrogen oxidation and evolution reaction mechanism journal January 2014
The modification of Pt(110) by ruthenium: CO adsorption and electro-oxidation journal November 2000
Kinetics of the Hydrogen Oxidation/Evolution Reaction on Polycrystalline Platinum in Alkaline Electrolyte Reaction Order with Respect to Hydrogen Pressure journal January 2014
Kinetics of Oxygen Reduction on Pt(hkl) Electrodes: Implications for the Crystallite Size Effect with Supported Pt Electrocatalysts journal January 1997
Hydrogen Oxidation and Evolution Reaction Kinetics on Platinum: Acid vs Alkaline Electrolytes journal January 2010
Nanoporous PtCo Surface Alloy Architecture with Enhanced Properties for Methanol Electrooxidation journal February 2012
Platinum-Coated Copper Nanowires with High Activity for Hydrogen Oxidation Reaction in Base journal August 2013
Effect of Strain on the Reactivity of Metal Surfaces journal September 1998
Synthesis of PtM (M=Co, Ni)/Reduced Graphene Oxide Nanocomposites as Electrocatalysts for the Oxygen Reduction Reaction journal January 2016
Ultrathin Nanowires-A Materials Chemistry Perspective journal March 2009
CTAB-reduced synthesis of urchin-like Pt–Cu alloy nanostructures and catalysis study towards the methanol oxidation reaction journal January 2015
Pt, PtCo and PtNi electrocatalysts prepared by mechanical alloying for the oxygen reduction reaction in 0.5M H2SO4 journal November 2008
Pt–Ru catalyzed hydrogen oxidation in alkaline media: oxophilic effect or electronic effect? journal January 2015
Stabilization of Pt monolayer catalysts under harsh conditions of fuel cells journal May 2015
Stability of TiO2 Promoted PtCo/C Catalyst for Oxygen Reduction Reaction journal January 2016
Surface electronic structure and reactivity of transition and noble metals1Communication presented at the First Francqui Colloquium, Brussels, 19–20 February 1996.1 journal February 1997
Preparation of PtRuNi/C electrocatalysts by an alcohol-reduction process for electro-oxidation of methanol journal January 2010
Architecture of PtFe/C catalyst with high activity and durability for oxygen reduction reaction journal August 2014
Star-like PtCu nanoparticles supported on graphene with superior activity for methanol electro-oxidation journal September 2015
Electrodeposition of Pt–Ru and Pt–Ru–Ni nanoclusters on multi-walled carbon nanotubes for direct methanol fuel cell journal March 2014
Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy journal January 2015
Modeling the Electrochemical Hydrogen Oxidation and Evolution Reactions on the Basis of Density Functional Theory Calculations journal October 2010
Improving the hydrogen oxidation reaction rate by promotion of hydroxyl adsorption journal February 2013
Platinum-Modified Gold Electrocatalysts for the Hydrogen Oxidation Reaction in Alkaline Electrolytes journal September 2014
Platinum and Palladium Overlayers Dramatically Enhance the Activity of Ruthenium Nanotubes for Alkaline Hydrogen Oxidation journal October 2015
Elucidating Hydrogen Oxidation/Evolution Kinetics in Base and Acid by Enhanced Activities at the Optimized Pt Shell Thickness on the Ru Core journal October 2015
Synthesis of Platinum Nanowire Networks Using a Soft Template journal December 2007
Modification of the surface electronic and chemical properties of Pt(111) by subsurface 3d transition metals journal June 2004
Enhanced Electrocatalytic Performance of Processed, Ultrathin, Supported Pd–Pt Core–Shell Nanowire Catalysts for the Oxygen Reduction Reaction journal June 2011
Popcorn-like PtAu nanoparticles supported on reduced graphene oxide: Facile synthesis and catalytic applications journal January 2014
A novel route for preparation of PtRuMe (Me=Fe, Co, Ni) and their catalytic performance for methanol electrooxidation journal March 2009
Ultrathin Pt-Based Alloy Nanowire Networks: Synthesized by CTAB Assistant Two-Phase Water−Chloroform Micelles journal November 2009
Ruthenium-Alloy Electrocatalysts with Tunable Hydrogen Oxidation Kinetics in Alkaline Electrolyte journal June 2015
Methanol, ethanol and ethylene glycol electro-oxidation at Pt and Pt–Ru catalysts electrodeposited over oxidized carbon nanotubes journal July 2012
Bulk-Palladium and Palladium-on-Gold Electrocatalysts for the Oxidation of Hydrogen in Alkaline Electrolyte journal November 2014
Dual-Pathway Kinetic Equation for the Hydrogen Oxidation Reaction on Pt Electrodes journal January 2006
Research Update: Synthesis, properties, and applications of ultrathin metallic nanowires and associated heterostructures journal August 2015

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