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https://apo.ansto.gov.au/dspace/handle/10238/4498| Title: | Magnetic structure and properties of the Na2CoP2O7 pyrophosphate cathode for sodium-ion batteries: a supersuperexchange-driven non-collinear antiferromagnet |
| Authors: | Barpanda, P Avdeev, M Ling, CD Lu, J Yamada, A |
| Keywords: | Lithium Iron Olivine Sediments Suspensions Acidification |
| Issue Date: | 17-Dec-2012 |
| Publisher: | American Chemical Society |
| Citation: | Barpanda, P., Avdeev, M., Ling, C.D., Lu, J.C., & Yamada, A. (2013). Magnetic structure and properties of the Na2CoP2O7 pyrophosphate cathode for sodium-ion batteries: a supersuperexchange-driven non-collinear antiferromagnet, Inorganic Chemistry, 52(1), 395-401. doi:10.1021/ic302191d |
| Abstract: | The crystal and magnetic structure and properties of the Na2CoP2O7 Na+-ion battery cathode material have been characterized by magnetic susceptibility, specific heat, and variable-temperature neutron powder diffraction measurements. Na2CoP2O7 crystallizes in the orthorhombic space group Pna21 with a = 15.4061(3) Å, b = 10.28854(9) Å, and c = 7.70316(15) Å, having a layered structure with slabs of [CoP2O7]∞ separated by Na cations. The magnetic property measurements and neutron diffraction data analysis reveal that the material undergoes long-range ordering to a noncollinear antiferromagnetic G-type structure below TN ≈ 6.5 K. The magnetic structure is rationalized as a result of supersuperexchange between Co2+ atoms linked by phosphate groups.© 2013, American Chemical Society. |
| Gov't Doc #: | 4906 |
| URI: | http://dx.doi.org/10.1021/ic302191d http://apo.ansto.gov.au/dspace/handle/10238/4498 |
| ISSN: | 0020-1669 |
| Appears in Collections: | Journal Articles |
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