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Title: Monodisperse core/shell Ni/FePt nanoparticles and their con-version to Ni/Pt to catalyze oxygen reduction

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/ja5099066· OSTI ID:1182492
 [1];  [1];  [2];  [1];  [1];  [2];  [3];  [1]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Brown Univ., Providence, RI (United States)

We report a size-controllable synthesis of monodisperse core/shell Ni/FePt nanoparticles (NPs) via a seed-mediated growth and their subsequent conversion to Ni/Pt NPs. Preventing surface oxidation of the Ni seeds is essential for the growth of uniform FePt shells. These Ni/FePt NPs have a thin (≈ 1 nm) FePt shell, and can be converted to Ni/Pt by acetic acid wash to yield active catalysts for oxygen reduction reaction (ORR). Tuning the core size allow for optimization of their electrocatalytic activity. The specific activity and mass activity of 4.2 nm/0.8 nm core/shell Ni/FePt reach 1.95 mA/cm² and 490 mA/mgPt at 0.9 V (vs. reversible hydrogen electrode, RHE), which are much higher than those of benchmark commercial Pt catalyst (0.34 mA/cm² and 92 mA/mgPt at 0.9 V). Our studies provide a robust approach to monodisperse core/shell NPs with non-precious metal core, making it possible to develop advanced NP catalysts with ultralow Pt content for ORR and many other heterogeneous reactions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1182492
Report Number(s):
BNL-107369-2015-JA; R&D Project: 16060; KC0403020
Journal Information:
Journal of the American Chemical Society, Vol. 136, Issue 45; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 147 works
Citation information provided by
Web of Science

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Cited By (32)

The controlled construction of a ternary hybrid of monodisperse Ni 3 S 4 nanorods/graphitic C 3 N 4 nanosheets/nitrogen-doped graphene in van der Waals heterojunctions as a highly efficient electrocatalyst for overall water splitting and a promising anode material for sodium-ion batteries journal January 2019
Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications journal July 2018
A bimetallic oxide Fe 1.89 Mo 4.11 O 7 electrocatalyst with highly efficient hydrogen evolution reaction activity in alkaline and acidic media journal January 2018
Highly Durable and Active Pt-Based Nanoscale Design for Fuel-Cell Oxygen-Reduction Electrocatalysts journal January 2018
Nano PdAu Bimetallic Alloy as an Effective Catalyst for the Buchwald-Hartwig Reaction journal July 2015
Ru@RuO 2 Core‐Shell Nanorods: A Highly Active and Stable Bifunctional Catalyst for Oxygen Evolution and Hydrogen Evolution Reactions journal April 2019
MoS 2 /NiS Yolk–Shell Microsphere‐Based Electrodes for Overall Water Splitting and Asymmetric Supercapacitor journal November 2018
Monodisperse nanoparticles for catalysis and nanomedicine journal January 2019
Ni nanoparticles supported on graphitic carbon nitride as visible light catalysts for hydrolytic dehydrogenation of ammonia borane journal January 2019
Facile fabrication of bimetallic Cu–Ag binary hybrid nanoparticles and their application in catalysis journal January 2019
Synergistically Enhanced Oxygen Reduction Electrocatalysis by Subsurface Atoms in Ternary PdCuNi Alloy Catalysts journal February 2018
When Cubic Cobalt Sulfide Meets Layered Molybdenum Disulfide: A Core-Shell System Toward Synergetic Electrocatalytic Water Splitting journal July 2015
Tailoring the shape and size of wet-chemical synthesized FePt nanoparticles by controlling nucleation and growth with a high magnetic field journal January 2019
Synthesis, Characterization, and Potential Applications of Transition Metal Nanoparticles journal September 2019
Ordered mesoporous FeN x -doped carbon: a class of highly active and stable catalysts in acids, bases and polymer electrolyte membrane fuel cells journal January 2018
Porous AgPd-Pd Composite Nanotubes as Highly Efficient Electrocatalysts for Lithium-Oxygen Batteries journal September 2015
Superhydrophilic and Superaerophobic Copper Phosphide Microsheets for Efficient Electrocatalytic Hydrogen and Oxygen Evolution journal June 2016
Ultrafine jagged platinum nanowires enable ultrahigh mass activity for the oxygen reduction reaction journal November 2016
Bimetallic synergy in cobalt–palladium nanocatalysts for CO oxidation journal December 2018
Tungsten-Doping-Induced Surface Reconstruction of Porous Ternary Pt-Based Alloy Electrocatalyst for Oxygen Reduction journal January 2019
Atomic Platinum Anchored on Fe-N-C Material for High Performance Oxygen Reduction Reaction: Atomic Platinum Anchored on Fe-N-C Material for High Performance Oxygen Reduction Reaction journal January 2020
Noble metal alloy complex nanostructures: controllable synthesis and their electrochemical property journal January 2015
Integrated Quasiplane Heteronanostructures of MoSe 2 /Bi 2 Se 3 Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance journal November 2017
High-index faceted CuFeS 2 nanosheets with enhanced behavior for boosting hydrogen evolution reaction journal January 2017
Core–shell nanoparticles: synthesis and applications in catalysis and electrocatalysis journal January 2015
Facet and dimensionality control of Pt nanostructures for efficient oxygen reduction and methanol oxidation electrocatalysts journal July 2016
Self-assembly of noble metal monolayers on transition metal carbide nanoparticle catalysts journal May 2016
Controlled synthesis of Au–Fe heterodimer nanoparticles and their conversion into Au–Fe 3 O 4 heterostructured nanoparticles journal January 2016
Surface Segregation of Fe in Pt-Fe Alloy Nanoparticles: Its Precedence and Effect on the Ordered-Phase Evolution during Thermal Annealing journal November 2015
Taming interfacial electronic properties of platinum nanoparticles on vacancy-abundant boron nitride nanosheets for enhanced catalysis journal June 2017
Recent developments of nano-structured materials as the catalysts for oxygen reduction reaction journal April 2018
Nanostructure Optimization of Platinum-Based Nanomaterials for Catalytic Applications journal November 2018

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