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Title: Pd nanoparticles on ZnO-passivated porous carbon by atomic layer deposition: an effective electrochemical catalyst for Li-O 2 battery

Abstract

Uniformly dispersed Pd nanoparticles on ZnO-passivated porous carbon were synthesized via an atomic layer deposition (ALD) technique, which was tested as a cathode material in a rechargeable Li-O-2 battery, showing a highly active catalytic effect toward the electrochemical reactions-in particular, the oxygen evolution reaction. Transmission electron microscopy (TEM) showed discrete crystalline nanoparticles decorating the surface of the ZnO-passivated porous carbon support in which the size could be controlled in the range of 3-6 nm, depending on the number of Pd ALD cycles performed. X-ray absorption spectroscopy (XAS) at the Pd Kedge revealed that the carbon-supported Pd existed in a mixed phase of metallic palladium and palladium oxide. The ZnO-passivated layer effectively blocks the defect sites on the carbon surface, minimizing the electrolyte decomposition. Our results suggest that ALD is a promising technique for tailoring the surface composition and structure of nanoporous supports for Li-O-2 batteries.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technology; University of Alabama – Huntsville; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1391925
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nanotechnology; Journal Volume: 26; Journal Issue: 16
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Luo, Xiangyi, Piernavieja-Hermida, Mar, Lu, Jun, Wu, Tianpin, Wen, Jianguo, Ren, Yang, Miller, Dean, Zak Fang, Zhigang, Lei, Yu, and Amine, Khalil. Pd nanoparticles on ZnO-passivated porous carbon by atomic layer deposition: an effective electrochemical catalyst for Li-O 2 battery. United States: N. p., 2015. Web. doi:10.1088/0957-4484/26/16/164003.
Luo, Xiangyi, Piernavieja-Hermida, Mar, Lu, Jun, Wu, Tianpin, Wen, Jianguo, Ren, Yang, Miller, Dean, Zak Fang, Zhigang, Lei, Yu, & Amine, Khalil. Pd nanoparticles on ZnO-passivated porous carbon by atomic layer deposition: an effective electrochemical catalyst for Li-O 2 battery. United States. doi:10.1088/0957-4484/26/16/164003.
Luo, Xiangyi, Piernavieja-Hermida, Mar, Lu, Jun, Wu, Tianpin, Wen, Jianguo, Ren, Yang, Miller, Dean, Zak Fang, Zhigang, Lei, Yu, and Amine, Khalil. Wed . "Pd nanoparticles on ZnO-passivated porous carbon by atomic layer deposition: an effective electrochemical catalyst for Li-O 2 battery". United States. doi:10.1088/0957-4484/26/16/164003.
@article{osti_1391925,
title = {Pd nanoparticles on ZnO-passivated porous carbon by atomic layer deposition: an effective electrochemical catalyst for Li-O 2 battery},
author = {Luo, Xiangyi and Piernavieja-Hermida, Mar and Lu, Jun and Wu, Tianpin and Wen, Jianguo and Ren, Yang and Miller, Dean and Zak Fang, Zhigang and Lei, Yu and Amine, Khalil},
abstractNote = {Uniformly dispersed Pd nanoparticles on ZnO-passivated porous carbon were synthesized via an atomic layer deposition (ALD) technique, which was tested as a cathode material in a rechargeable Li-O-2 battery, showing a highly active catalytic effect toward the electrochemical reactions-in particular, the oxygen evolution reaction. Transmission electron microscopy (TEM) showed discrete crystalline nanoparticles decorating the surface of the ZnO-passivated porous carbon support in which the size could be controlled in the range of 3-6 nm, depending on the number of Pd ALD cycles performed. X-ray absorption spectroscopy (XAS) at the Pd Kedge revealed that the carbon-supported Pd existed in a mixed phase of metallic palladium and palladium oxide. The ZnO-passivated layer effectively blocks the defect sites on the carbon surface, minimizing the electrolyte decomposition. Our results suggest that ALD is a promising technique for tailoring the surface composition and structure of nanoporous supports for Li-O-2 batteries.},
doi = {10.1088/0957-4484/26/16/164003},
journal = {Nanotechnology},
number = 16,
volume = 26,
place = {United States},
year = {Wed Apr 01 00:00:00 EDT 2015},
month = {Wed Apr 01 00:00:00 EDT 2015}
}