Colloidal synthesis and characterization of carbon-supported Pd-Cu nanoparticle oxygen reduction electrocatalysts.
Abstract
The ability to control the size and composition of metal or alloys nanoparticles is important in preparing catalysts. This paper reports a colloidal synthesis methodology for the preparation of monodisperse palladium-copper (Pd-Cu) alloy nanoparticles with an average diameter of 3 nm for the as-prepared particles and 5-10 nm upon removal of the capping agents. Our approach involves the use of metal precursors, capping agents, and reducing agents in controlled ratios for nanoparticle formation in a single organic phase, followed by deposition of the capped nanoparticles on high surface area carbon and removal of the capping agents via heat treatment in either oxidizing or reducing atmosphere. The results of characterizations using transmission electron microscopy-energy dispersive X-ray analysis (TEM-EDX), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), temperature programmed oxidation and reduction combined with mass spectrometry (TPO/TPR-MS), powder X-ray diffraction (XRD), and cyclic voltammetry (CV) are discussed. The resulting high-surface-area-carbon-supported Pd-Cu catalysts (PdCu/C) showed high activity for the oxygen reduction reaction (ORR) in acidic electrolyte. Our study revealed composition and heat-treatment dependent ORR activity.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- EE
- OSTI Identifier:
- 984716
- Report Number(s):
- ANL/CSE/JA-67177
Journal ID: 0897-4756; TRN: US201016%%1438
- DOE Contract Number:
- DE-AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- Chem. Mater.
- Additional Journal Information:
- Journal Volume: 22; Journal Issue: 14 ; Jul. 27, 2010
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 36 MATERIALS SCIENCE; ALLOYS; CARBON; CATALYSTS; DEPOSITION; ELECTROCATALYSTS; ELECTRONS; HEAT TREATMENTS; MASS SPECTROSCOPY; OXIDATION; OXYGEN; REDUCING AGENTS; REMOVAL; SPECTROSCOPY; SURFACE AREA; SYNTHESIS; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
Citation Formats
Kariuki, N N, Wang, X, Mawdsley, J R, Ferrandon, M S, Niyogi, S G, Vaughey, J T, Myers, D J, and Chemical Sciences and Engineering Division. Colloidal synthesis and characterization of carbon-supported Pd-Cu nanoparticle oxygen reduction electrocatalysts.. United States: N. p., 2010.
Web. doi:10.1021/cm100155z.
Kariuki, N N, Wang, X, Mawdsley, J R, Ferrandon, M S, Niyogi, S G, Vaughey, J T, Myers, D J, & Chemical Sciences and Engineering Division. Colloidal synthesis and characterization of carbon-supported Pd-Cu nanoparticle oxygen reduction electrocatalysts.. United States. https://doi.org/10.1021/cm100155z
Kariuki, N N, Wang, X, Mawdsley, J R, Ferrandon, M S, Niyogi, S G, Vaughey, J T, Myers, D J, and Chemical Sciences and Engineering Division. 2010.
"Colloidal synthesis and characterization of carbon-supported Pd-Cu nanoparticle oxygen reduction electrocatalysts.". United States. https://doi.org/10.1021/cm100155z.
@article{osti_984716,
title = {Colloidal synthesis and characterization of carbon-supported Pd-Cu nanoparticle oxygen reduction electrocatalysts.},
author = {Kariuki, N N and Wang, X and Mawdsley, J R and Ferrandon, M S and Niyogi, S G and Vaughey, J T and Myers, D J and Chemical Sciences and Engineering Division},
abstractNote = {The ability to control the size and composition of metal or alloys nanoparticles is important in preparing catalysts. This paper reports a colloidal synthesis methodology for the preparation of monodisperse palladium-copper (Pd-Cu) alloy nanoparticles with an average diameter of 3 nm for the as-prepared particles and 5-10 nm upon removal of the capping agents. Our approach involves the use of metal precursors, capping agents, and reducing agents in controlled ratios for nanoparticle formation in a single organic phase, followed by deposition of the capped nanoparticles on high surface area carbon and removal of the capping agents via heat treatment in either oxidizing or reducing atmosphere. The results of characterizations using transmission electron microscopy-energy dispersive X-ray analysis (TEM-EDX), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), temperature programmed oxidation and reduction combined with mass spectrometry (TPO/TPR-MS), powder X-ray diffraction (XRD), and cyclic voltammetry (CV) are discussed. The resulting high-surface-area-carbon-supported Pd-Cu catalysts (PdCu/C) showed high activity for the oxygen reduction reaction (ORR) in acidic electrolyte. Our study revealed composition and heat-treatment dependent ORR activity.},
doi = {10.1021/cm100155z},
url = {https://www.osti.gov/biblio/984716},
journal = {Chem. Mater.},
number = 14 ; Jul. 27, 2010,
volume = 22,
place = {United States},
year = {Tue Jul 27 00:00:00 EDT 2010},
month = {Tue Jul 27 00:00:00 EDT 2010}
}