High rate sodium ion battery anodes from block copolymer templated mesoporous nickel–cobalt carbonates and oxides
Abstract
In this work, micelle-templated ordered mesoporous nickel–cobalt carbonates and oxides are fabricated using a metal nitrate–citric acid strategy, which avoids the hydrolysis and aging requirements associated with sol–gel chemistry. A series of mesoporous NixCo(3–x)(CO3)y and NixCo(3–x)O4 films with varying Ni–Co compositions and 14 ± 4 nm mesopores are fabricated with the same block copolymer template. AFM and GISAXS analysis indicates that the mesostructure is maintained through the formation of the carbonate and oxide, while GIXD profiles confirm formation of pure spinel phases of semi-crystalline NixCo(3–x)O4. The micelle templated mesopores are interconnected and provide transport paths for the electrolyte to minimize the solid-state diffusion requirements associated with battery electrodes. These materials exhibit good performance as sodium ion battery anodes even at high current densities of 4 A g–1. Amongst the mixed-metal oxides, Ni2CoO4 exhibits the highest specific capacity of 239 mA h g–1 after galvanostatic cycling at a current density of 1 A g–1 for 10 cycles. We attribute the superior performance of Ni2CoO4 at high rates to the high surface area and short ion-diffusion paths of the nanoporous anode architecture, while the higher nickel content in the mixed metal oxide provides enhanced stability during oxide formation along with enhanced electronicmore »
- Authors:
-
- Univ. of Akron, OH (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1352235
- Grant/Contract Number:
- CBET-1336057; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Materials Chemistry. A
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 42; Journal ID: ISSN 2050-7488
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 36 MATERIALS SCIENCE; 25 ENERGY STORAGE
Citation Formats
Bhaway, Sarang M., Tangvijitsakul, Pattarasai, Lee, Jeongwoo, Soucek, Mark D., and Vogt, Bryan D. High rate sodium ion battery anodes from block copolymer templated mesoporous nickel–cobalt carbonates and oxides. United States: N. p., 2015.
Web. doi:10.1039/c5ta04520g.
Bhaway, Sarang M., Tangvijitsakul, Pattarasai, Lee, Jeongwoo, Soucek, Mark D., & Vogt, Bryan D. High rate sodium ion battery anodes from block copolymer templated mesoporous nickel–cobalt carbonates and oxides. United States. https://doi.org/10.1039/c5ta04520g
Bhaway, Sarang M., Tangvijitsakul, Pattarasai, Lee, Jeongwoo, Soucek, Mark D., and Vogt, Bryan D. Wed .
"High rate sodium ion battery anodes from block copolymer templated mesoporous nickel–cobalt carbonates and oxides". United States. https://doi.org/10.1039/c5ta04520g. https://www.osti.gov/servlets/purl/1352235.
@article{osti_1352235,
title = {High rate sodium ion battery anodes from block copolymer templated mesoporous nickel–cobalt carbonates and oxides},
author = {Bhaway, Sarang M. and Tangvijitsakul, Pattarasai and Lee, Jeongwoo and Soucek, Mark D. and Vogt, Bryan D.},
abstractNote = {In this work, micelle-templated ordered mesoporous nickel–cobalt carbonates and oxides are fabricated using a metal nitrate–citric acid strategy, which avoids the hydrolysis and aging requirements associated with sol–gel chemistry. A series of mesoporous NixCo(3–x)(CO3)y and NixCo(3–x)O4 films with varying Ni–Co compositions and 14 ± 4 nm mesopores are fabricated with the same block copolymer template. AFM and GISAXS analysis indicates that the mesostructure is maintained through the formation of the carbonate and oxide, while GIXD profiles confirm formation of pure spinel phases of semi-crystalline NixCo(3–x)O4. The micelle templated mesopores are interconnected and provide transport paths for the electrolyte to minimize the solid-state diffusion requirements associated with battery electrodes. These materials exhibit good performance as sodium ion battery anodes even at high current densities of 4 A g–1. Amongst the mixed-metal oxides, Ni2CoO4 exhibits the highest specific capacity of 239 mA h g–1 after galvanostatic cycling at a current density of 1 A g–1 for 10 cycles. We attribute the superior performance of Ni2CoO4 at high rates to the high surface area and short ion-diffusion paths of the nanoporous anode architecture, while the higher nickel content in the mixed metal oxide provides enhanced stability during oxide formation along with enhanced electronic conductivity, leading to improved cycling stability of the anode. This micelle template metal nitrate–citric acid method enables new possibilities for fabricating variety of ordered mesoporous mixed-metal carbonates and oxides that could be used in a wide range of applications.},
doi = {10.1039/c5ta04520g},
journal = {Journal of Materials Chemistry. A},
number = 42,
volume = 3,
place = {United States},
year = {Wed Sep 16 00:00:00 EDT 2015},
month = {Wed Sep 16 00:00:00 EDT 2015}
}
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