Well-Dispersed Manganese-Oxo Clusters as Anode Materials for High-Performance Lithium Ion Batteries.

Autor: Zhang B; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Qiu T; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Li Y; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Li Y; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Yu F; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China.; Macao Institute of Materials Science and Engineering Macau University of Science and Technology Taipa 999078 Macau SAR, China., Dong H; Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China., Wang YH; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Li YG; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China., Tan HQ; Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China.
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2024 Sep 18; Vol. 24 (37), pp. 11512-11519. Date of Electronic Publication: 2024 Sep 04.
DOI: 10.1021/acs.nanolett.4c02887
Abstrakt: Metal-oxo clusters show great promise in lithium ion battery applications as anode materials by virtue of their native nature of well-defined nanostructures and multielectron redox activities. However, their intrinsic unsatisfactory electrical conductivity and tendency to aggregation make them difficult to fully utilize. Herein, a well-dispersed Mn 12 O 12 (CH 3 COO) 16 (H 2 O) 4 (denoted as Mn 12 ) cluster is constructed by rationally adopting carbon dots (CDs) with nanosize and high conductivity as stabilizers. Thanks to the fully exposed redox sites of Mn 12 clusters and additional interfacial energy storage mechanism, the optimized Mn 12 /CDs-1:20 anode delivers a high specific capacity of 1643 mAh g -1 at 0.2 A g -1 (0.25 C) and exhibits outstanding rate and cycling capabilities. This paper provides a green and efficient paradigm to synthesize well-dispersed manganese-oxo clusters for the first time and builds a new platform for cluster-based energy storage.
Databáze: MEDLINE
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