In-Situ Growth of CeO2 Nanoparticles on N-doped Reduced Graphene Oxide for Anchoring Li2O2 Formation in Lithium-Oxygen Batteries

First-principles study of the initial oxygen reduction reaction on stoichiometric and reduced CeO2(111) surfaces as a cathode catalyst for lithium–oxygen batteries

“…We also found that the presence of CeO2 nanoparticles increased the capacity and cyclability of the LOBs. Besides, we found that there were 20.04% reduced Ce 3+ in the CeO2@N-RGO, and concluded that the remarkable catalytic activities of the CeO2 in the LOBs were related to the oxygen vacancies on its surface 17 .…”

“…It is necessary to check the experimental process to understand the best path here. In most of the experimental battery preparation procedures, the electrolytes containing Li ions firstly contact the cathode 10,17 . In the SOV CeO2 cathode, surfaces with no, one, two or more Li atoms pre-adsorbed are co-existed.…”

“…Ahn et al 10 reported that a relative high specific capacity can be achieved when graphene/doped ceria nanoblend was used as cathode catalyst a in the LOBs. Recently, our experimental study showed that the LOBs with a cathode of CeO2 nanoparticles in-situ grown on nitrogen doped reduced graphene oxide (CeO2@N-RGO) exhibited superior electrocatalytic activity and cyclability 17 . We also found that the presence of CeO2 nanoparticles increased the capacity and cyclability of the LOBs.…”

Aprotic Lithium–Air Batteries Tested in Ambient Air with a High‐Performance and Low‐Cost Bifunctional Perovskite Catalyst

“…While for SP cathode, the impedance is about 530 Ω after discharge and 220 Ω after recharge. The impedance increasing after discharge and falling back at recharge stage are attributed to the generation of insulated products during the discharge reaction and the decomposition of them during the charge process, respectively . The larger impedance of SP cathode after discharge may come from the more insulated products.…”

“…However, this system suffers from many scientific challenges related to the inherent sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), which makes it far away from application . To develop a bifunctional catalyst with high performance and low cost, it is not only necessary but also practical to accelerate the application of LABs …”