Synthesis of Porous Carbon Supported Palladium Nanoparticle Catalysts by Atomic Layer Deposition: Application for Rechargeable Lithium-O-2 Battery

Title
Synthesis of Porous Carbon Supported Palladium Nanoparticle Catalysts by Atomic Layer Deposition: Application for Rechargeable Lithium-O-2 Battery
Author
선양국
Keywords
atomic layer deposition; Li?O2 battery; oxygen evolution reaction; oxygen reduction reaction; palladium nanoparticles
Issue Date
2013-09
Publisher
American Chemical Society
Citation
Nano Lett., 2013, 13 (9), p.4182-4189
Abstract
In this study, atomic layer deposition (ALD) was used to deposit nanostructured palladium on porous carbon as the cathode material for Li?O2 cells. Scanning transmission electron microscopy showed discrete crystalline nanoparticles decorating the surface of the porous carbon support, where the size could be controlled in the range of 2?8 nm and depended on the number of Pd ALD cycles performed. X-ray absorption spectroscopy at the Pd K-edge revealed that the carbon supported Pd existed in a mixed phase of metallic palladium and palladium oxide. The conformality of ALD allowed us to uniformly disperse the Pd catalyst onto the carbon support while preserving the initial porous structure. As a result, the charging and discharging performance of the oxygen cathode in a Li?O2 cell was improved. Our results suggest that ALD is a promising technique for tailoring the surface composition and structure of nanoporous supports in energy storage devices.
URI
https://pubs.acs.org/doi/10.1021/nl401833phttp://hdl.handle.net/20.500.11754/50904
ISSN
1530-6984
DOI
10.1021/nl401833p
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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