Synthesis of MOF-74-derived carbon/ZnCo2O4 nanoparticles@CNT-nest hybrid material and its application in lithium ion batteries
Carbon/ZnCo 2 O 4 nanoparticles’ hybrid highly dispersed within a carbon nanotube nest were synthesized by the carbonization of in situ formed MOF-74-ZnCo/CNT hybrid materials. Results demonstrated that the synthesized mixed transition metal oxides/carbon/CNT composite provided a stable energy densi...
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Published in | Journal of applied electrochemistry Vol. 49; no. 11; pp. 1103 - 1112 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
01.11.2019
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Carbon/ZnCo
2
O
4
nanoparticles’ hybrid highly dispersed within a carbon nanotube nest were synthesized by the carbonization of in situ formed MOF-74-ZnCo/CNT hybrid materials. Results demonstrated that the synthesized mixed transition metal oxides/carbon/CNT composite provided a stable energy density of 800 mAh g
−1
at 100 mA g
−1
. It could also provide a reversible capacity of 430 mAh g
−1
under a high current of 2000 mA g
−1
even after 1000 cycles. The outstanding performances of C/ZnCo
2
O
4
@CNT can be accredited to the synergistic effects from the porous nanostructured bi-metal oxides, the carbon and the CNT nest. These properties can improve the conductance of the material, alleviate the stress on ZnCo
2
O
4
nanoparticles through accommodating the volume variation during lithium exchange processes, and offer fast diffusion roads for ions and more active sites for lithium storage.
Graphic Abstract |
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ISSN: | 0021-891X 1572-8838 |
DOI: | 10.1007/s10800-019-01349-4 |