DataVXACS Applied Energy MaterialsPaper
journal article·2019-03-25

Nitrogen-Doped NiCo2O4 Microsphere as an Efficient Catalyst for Flexible Rechargeable Zinc–Air Batteries and Self-Charging Power System

Juanjuan Bian, Xiaopeng Cheng, Xiaoyi Meng, Jian Wang, Jigang Zhou, Shaoqing Li, Yuefei Zhang, Chunwen Sun

ACS Applied Energy Materials· Volume 2· Issue 3
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Source abstract

Abstract

The design and synthesis of efficient and cost-effective electrocatalysts are vital for rechargeable zinc–air batteries (ZABs). Here, nitrogen-doped NiCo2O4 (N-doped NiCo2O4) was prepared and used as a promising electrocatalyst for ZABs. By doping with nitrogen, the N-doped NiCo2O4 catalyst shows higher catalytic activity than that of NiCo2O4 in terms of higher half-wave potential and lower Tafel slope. As a cathode catalyst for flexible rechargeable zinc–air batteries, the cell with N-doped NiCo2O4 shows excellent cycling performance. X-ray absorption near-edge structure (XANES) results manifest that the improved catalytic performance is attributed to the enhanced covalence of Co–O and Ni–O and more active sites in N-doped NiCo2O4. Moreover, we demonstrate a self-powered system, which integrates the flexible ZABs and TENG to power a LED screen.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageCatalysis & surfaces

OpenAlex topics: Advanced battery technologies research · Conducting polymers and applications · Supercapacitor Materials and Fabrication

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

Affiliations

CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China

School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, P. R. China

Canadian Light Source Inc., University of Saskatchewan, Saskatoon, SK S7N 2V3, Canada

Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning 530004, P. R. China

Funding

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

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