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Title: Lithiation-Induced Non-Noble Metal Nanoparticles for Li–O2 Batteries

Journal Article · · ACS Applied Materials and Interfaces
 [1]; ORCiD logo [2]; ORCiD logo [3];  [3];  [3];  [3];  [4];  [4]; ORCiD logo [5]; ORCiD logo [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Nanyang Technological Univ. (Singapore)
  2. Nanyang Technological Univ. (Singapore); Xi’an Jiaotong Univ., Xi’an (China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  5. Nanyang Technological Univ. (Singapore)

Low-cost and highly active electrocatalysts are attractive for Li-O2 applications. Herein, a 3D interconnected plate architecture consisting of ultrasmall Co-Ni grains embedded in lithium hydroxide nanoplates (Co2Ni@LiOH) is designed and prepared by a lithiation strategy at room temperature. This catalyst exhibits a remarkably reduced charge potential of similar to 3.4 V at 50 mu A cm-2, which leads to the high roundtrip efficiency of similar to 79%, among the best levels reported and a cycle life of up to 40 cycles. The well-aligned network facilitates the oxygen diffusion and the electrolyte match penetration into the electrode. The enhanced electrical conductivity net-work improves the charge transport kinetics and more active sites are exposed, which facilitate the adsorption and dissociation of oxygen during the oxygen reduction reaction and the oxygen evolution reaction. This new catalyst design inspires the development of an effective non-noble metal catalyst for Li-O2 batteries.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1515839
Journal Information:
ACS Applied Materials and Interfaces, Vol. 11, Issue 1; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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