TY - JOUR
T1 - Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery
AU - Thapa, Arjun Kumar
AU - Shin, Tae Ho
AU - Ida, Shintaro
AU - Sumanasekera, Gamini U.
AU - Sunkara, Mahendra K.
AU - Ishihara, Tatsumi
N1 - Funding Information:
This work was financially supported by Li-EAD project of the New Energy and Industrial Technology Development Organization (NEDO), Japan . The authors thank Andrew Marsh of the Conn Center for Renewable Energy Research at the University of Louisville for editing.
PY - 2012/12/15
Y1 - 2012/12/15
N2 - The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.
AB - The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.
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U2 - 10.1016/j.jpowsour.2012.08.003
DO - 10.1016/j.jpowsour.2012.08.003
M3 - Article
AN - SCOPUS:84865308471
SN - 0378-7753
VL - 220
SP - 211
EP - 216
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
