NDLI: Ultra-low overpotential and high rate capability in Li–O<sub>2</sub> batteries through surface atom arrangement of PdCu nanocatalysts

Content Provider	Royal Society of Chemistry (RSC)
Author	Jung, Jaepyeong Choi, Ran Jung, Sung Chul Kim, Yong-Il Kang, Yong-Mook Song, Hyunjoon Kim, Gyubong Song, Kyeongse Han, Young-Kyu
Copyright Year	2014
Abstract	PdCu bimetallic nanoparticles (NPs) having mixed disordered face-centered cubic (fcc) and ordered body-centered cubic (B2-type) phases enhance the kinetics of oxygen reduction/evolution reaction by significant reduction of overpotentials, which leads to the superb round-trip efficiency of ∼80%. In addition, the PdCu catalyst demonstrates a remarkable cyclic enhancement in stability and an outstanding rate capability even at a high current density of 5000 mA gcarbon−1. Our first-principles calculations demonstrate that the low overpotentials of the PdCu catalyst are strongly correlated with the weak LiO2 adsorption strength, caused by electron transfer from Cu to the top-layer Pd atoms on the surface.
Starting Page	1362
Ending Page	1368
Page Count	7
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	7
Issue Number	4
Journal	Energy & Environmental Science
DOI	10.1039/c3ee43437k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cu Cubic crystal system Oxygen Current density Adsorption
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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Ultra-low overpotential and high rate capability in Li–O₂ batteries through surface atom arrangement of PdCu nanocatalysts