DataVXACS Applied Energy MaterialsPaper
journal article·2018-09-27

Perovskite Sr0.9Y0.1CoO3−δ Nanorods Modified with CoO Nanoparticles as a Bifunctional Catalyst for Rechargeable Li–O2 Batteries

Jie Wang, Xiaopeng Cheng, Zhaolong Li, Meng Xu, Yao Lu, Shengming Liu, Yuefei Zhang, Chunwen Sun

ACS Applied Energy Materials
Publisher page
Source abstract

Abstract

For practical application of lithium–oxygen batteries, one of the challenges is the development of efficient bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in cathode. In this work, perovskite Sr0.9Y0.1CoO3−δ nanorods are synthesized by an electrospinning method. The performance of the Li–O2 cell with Sr0.9Y0.1CoO3−δ catalysts is better than that of the cell only with Super-P. Furthermore, modification of CoO nanoparticles on the cathode can provide an obviously improved electrochemical performance with a reduced voltage gap (∼80–140 mV), which is ascribed to the superior catalytic activity of CoO nanoparticles toward OER. All of these results demonstrate that the perovskite Sr0.9Y0.1CoO3−δ is an efficient bifunctional electrocatalyst for lithium–oxygen batteries, and the incorporation of CoO nanoparticles is an effective approach for improving the cathode performance as well.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, People’s Republic of China

School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China

Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People’s Republic of China

Department of Radiation Science and Technology, Delft University of Technology, Mekelweg 15, 2629JB Delft, The Netherlands

School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China

Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning 530004, People’s Republic of China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences

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