Electrocatalytic performances of g-C3N4-LaNiO3 composite as bi-functional catalysts for lithium-oxygen batteries
Open Access
- 14 April 2016
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 6 (1), 24314
- https://doi.org/10.1038/srep24314
Abstract
A low cost and non-precious metal composite material g-C3N4-LaNiO3 (CNL) was synthesized as a bifunctional electrocatalyst for the air electrode of lithium-oxygen (Li-O2) batteries. The composition strategy changed the electron structure of LaNiO3 and g-C3N4, ensures high Ni3+/Ni2+ ratio and more absorbed hydroxyl on the surface of CNL that can promote the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The composite catalyst presents higher activities than the individual components g-C3N4 and LaNiO3 for both ORR and OER. In non-aqueous Li-O2 batteries, CNL shows higher capacity, lower overpotentials and better cycling stability than XC-72 carbon and LaNiO3 catalysts. Our results suggest that CNL composite is a promising cathode catalyst for Li-O2 batteries.This publication has 40 references indexed in Scilit:
- Cycling Li-O 2 batteries via LiOH formation and decompositionScience, 2015
- Flexible lithium–oxygen battery based on a recoverable cathodeNature Communications, 2015
- The bifunctional electrocatalytic activity of perovskite La0.6Sr0.4CoO3−δ for oxygen reduction and evolution reactionsRSC Advances, 2015
- Metal-Free Ketjenblack Incorporated Nitrogen-Doped Carbon Sheets Derived from Gelatin as Oxygen Reduction CatalystsNano Letters, 2014
- Reversibility of anodic lithium in rechargeable lithium–oxygen batteriesNature Communications, 2013
- Fe/N/C Composite in Li–O2 Battery: Studies of Catalytic Structure and Activity toward Oxygen Evolution ReactionJournal of the American Chemical Society, 2012
- Platinum nanoparticle–graphene hybrids synthesized by liquid phase pulsed laser ablation as cathode catalysts for Li-air batteriesElectrochemistry Communications, 2012
- Ordered Mesoporous Carbon Nitrides with Graphitic Frameworks as Metal-Free, Highly Durable, Methanol-Tolerant Oxygen Reduction Catalysts in an Acidic MediumLangmuir, 2011
- In Search of the Active Site in Nitrogen-Doped Carbon Nanotube Electrodes for the Oxygen Reduction ReactionThe Journal of Physical Chemistry Letters, 2010
- A Polymer Electrolyte‐Based Rechargeable Lithium/Oxygen BatteryJournal of the Electrochemical Society, 1996