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Pd Nanoparticles Coupled to WO2.72 Nanorods for Enhanced Electrochemical Oxidation of Formic Acid

Journal Article · · Nano Letters
In this work, we synthesize a new type of hybrid Pd/WO2.72 structure with 5 nm Pd nanoparticles (NPs) anchored on 50 × 5 nm WO2.72 nanorods. The strong Pd/WO2.72 coupling results in the lattice expansion of Pd from 0.23 to 0.27 nm and the decrease of Pd surface electron density. As a result, the Pd/WO2.72 shows much enhanced catalysis toward electrochemical oxidation of formic acid in 0.1 M HClO4; it has a mass activity of ~1600 mA/mgPd in a broad potential range of 0.4–0.85 V (vs RHE) and shows no obvious activity loss after a 12 h chronoamperometry test at 0.4 V. Our work demonstrates an important strategy to enhance Pd NP catalyst efficiency for energy conversion reactions.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
Canadian Institutes of Health Research (CIHR); National Research Council Canada (NRC); National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); US Army Research Laboratory (USARL); US Army Research Office (ARO); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1372233
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 4 Vol. 17; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

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Unzipping of Single-Walled Carbon Nanotube for the Development of Electrocatalytically Active Hybrid Catalyst of Graphitic Carbon and Pd Nanoparticles journal January 2018
Mesoporous Decoration of Freestanding Palladium Nanotube Arrays Boosts the Electrocatalysis Capabilities toward Formic Acid and Formate Oxidation journal May 2019
Investigation of the Support Effect in Atomically Dispersed Pt on WO 3− x for Utilization of Pt in the Hydrogen Evolution Reaction journal September 2019
Tunable Periodically Ordered Mesoporosity in Palladium Membranes Enables Exceptional Enhancement of Intrinsic Electrocatalytic Activity for Formic Acid Oxidation journal January 2020
Single-Atom Electrocatalysts journal October 2017
Investigation of the Support Effect in Atomically Dispersed Pt on WO 3− x for Utilization of Pt in the Hydrogen Evolution Reaction journal November 2019
Tunable Periodically Ordered Mesoporosity in Palladium Membranes Enables Exceptional Enhancement of Intrinsic Electrocatalytic Activity for Formic Acid Oxidation journal March 2020
Synergistic Supports Beyond Carbon Black for Polymer Electrolyte Fuel Cell Anodes journal September 2018
Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni 0 /Ni 2+ Heterojunctions on Activity and Product Selectivity journal January 2020
Boron‐Doped PdCuAu Nanospine Assembly as an Efficient Electrocatalyst toward Formic Acid Oxidation journal February 2020
Electrochemical Water Oxidation Catalysed by CoO-Co 2 O 3 -Co(OH) 2 Multiphase-Nanoparticles Prepared by Femtosecond Laser Ablation in Water journal May 2018
PdCu alloy nanoparticles supported on reduced graphene oxide for electrocatalytic oxidation of methanol journal August 2018
Palladium nanoparticles decorated SnO 2 wrapped MWCNT nanocomposites as a highly efficient H 2 O 2 electrocatalyst journal January 2019
A sandwich-type catalytic composite reassembled with a birnessite layer and metalloporphyrin as a water oxidation catalyst journal January 2019
Synergism of molybdenum nitride and palladium for high-efficiency formic acid electrooxidation journal January 2018
Core–shell CuPd@Pd tetrahedra with concave structures and Pd-enriched surface boost formic acid oxidation journal January 2018
Controlled synthesis of Pt nanoparticle supported TiO 2 nanorods as efficient and stable electrocatalysts for the oxygen reduction reaction
  • Murphin Kumar, Paskalis Sahaya; Ponnusamy, Vinoth Kumar; Deepthi, Koolath Ramakrishnan
  • Journal of Materials Chemistry A, Vol. 6, Issue 46 https://doi.org/10.1039/c8ta07380e
journal January 2018
Enriched nucleation sites for Pt deposition on ultrathin WO 3 nanosheets with unique interactions for methanol oxidation journal January 2018
One-pot formic acid dehydrogenation and synthesis of benzene-fused heterocycles over reusable AgPd/WO 2.72 nanocatalyst journal January 2018
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Electrocatalytic Activities towards the Electrochemical Oxidation of Formic Acid and Oxygen Reduction Reactions over Bimetallic, Trimetallic and Core–Shell-Structured Pd-Based Materials journal March 2019

Figures / Tables (4)


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