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具有增强锂存储性能的锰铬混合氧化物纳米片的形成。

Formation of Mn-Cr mixed oxide nanosheets with enhanced lithium storage properties.

作者信息

Li Liewu, Wang Liping, Zhang Mingyu, Huang Qizhong

机构信息

State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China

Department of Biological and Environmental Engineering, Changsha University Changsha 410022 China.

出版信息

RSC Adv. 2018 Aug 21;8(52):29670-29677. doi: 10.1039/c8ra04868a. eCollection 2018 Aug 20.

DOI:10.1039/c8ra04868a
PMID:35547308
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9085269/
Abstract

Novel carbon-free MnO/MnCrO hybrid nanosheets are synthesized through thermal decomposition of the facilely co-precipitated Mn-Cr binary hydroxide and a carbonate hybrid precursor. As an anode for lithium-ion batteries, the MnO/MnCrO electrode delivers a wonderful electrochemical performance, , an enhanced stability of 913 mA h g at a current density of 1 A g after 300 cycles, and an excellent rate performance. The excellent electrochemical performance of the MnO/MnCrO electrode can be ascribed to the interconnected nanosheets and porous structure, as well as the possible synergistic effects between Mn and Cr mixed oxides.

摘要

通过对简便共沉淀法制备的Mn-Cr二元氢氧化物和碳酸盐混合前驱体进行热分解，合成了新型无碳MnO/MnCrO混合纳米片。作为锂离子电池的阳极，MnO/MnCrO电极具有出色的电化学性能，在1 A g的电流密度下经过300次循环后，稳定性增强，达到913 mA h g，并且倍率性能优异。MnO/MnCrO电极出色的电化学性能可归因于相互连接的纳米片和多孔结构，以及Mn和Cr混合氧化物之间可能存在的协同效应。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/3093326b4c41/c8ra04868a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/ce6700d6e79f/c8ra04868a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/5c5b0e69c6d6/c8ra04868a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/804393b78a28/c8ra04868a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/d9824245b8dd/c8ra04868a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/95c0deb66d9b/c8ra04868a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/35e0b0f41aae/c8ra04868a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/3093326b4c41/c8ra04868a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/ce6700d6e79f/c8ra04868a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/5c5b0e69c6d6/c8ra04868a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/804393b78a28/c8ra04868a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/d9824245b8dd/c8ra04868a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/95c0deb66d9b/c8ra04868a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/35e0b0f41aae/c8ra04868a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f902/9085269/3093326b4c41/c8ra04868a-f7.jpg

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