NDLI: A 3D porous nitrogen-doped carbon-nanofiber-supported palladium composite as an efficient catalytic cathode for lithium

Content Provider	Royal Society of Chemistry (RSC)
Author	Liu, Lili Wang, Jun Chou, Shulei Liu, Huakun Wang, Jiazhao
Copyright Year	2017
Abstract	Palladium/porous nitrogen-doped carbon-nanofiber (Pd/PNCNF) composites with a three-dimensional (3D) network structure have been prepared by decorating Pd nanoparticles onto PNCNFs, which were derived from KOH activated polypyrrole nanofibers. The Pd nanoparticles decorated on the walls of the PNCNFs as a bifunctional catalyst play a key role in the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), as evidenced by the electrochemical results in aqueous solution. With the synergistic effects from the PNCNF matrix with a highly conductive porous structure and the Pd nanoparticles with high electrocatalytic performance, a Li–O2 cell containing the Pd/PNCNF composite catalyst with 25 wt% Pd nanoparticles showed notably improved electrocatalytic performance compared to a cell containing its pure PNCNF counterpart, with higher capacities, lower overpotentials, and better cycling stability. Therefore, the Pd/PNCNF composite is proposed as a potential cathode catalyst for Li–O2 batteries.
Starting Page	1462
Ending Page	1471
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	4
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta07050g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	KOH Li Three-dimensional space Polypyrrole Bifunctional catalyst Redox Oxygen evolution Electrochemistry Extracellular matrix Cathode
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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