@article{34198,
  author = {Jennifer Ludwig and Dennis Nordlund and Marca M Doeff and Tom Nilges},
  title = {Synthesis and characterization of metastable, 20 nm-sized Pna 2 1 -LiCoPO 4 nanospheres},
  abstract = {<p><span>The majority of research activities on LiCoPO</span><span>4</span><span>\&nbsp;are focused on the phospho-olivine (space group\&nbsp;</span><span><em><a title="Learn more about Pnma from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/pnma">Pnma</a></em></span><span>), which is a promising high-voltage\&nbsp;<a title="Learn more about Cathode Material from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/materials-science/cathode-material">cathode material</a>\&nbsp;for Li-ion batteries. In contrast, comparably little is known about its metastable\&nbsp;</span><em>Pna</em><span>2</span><span>1</span><span>\&nbsp;modification. Herein, we present a comprehensive study on the structure{\textendash}property relationships of 15{\textendash}20</span><span>\&nbsp;</span><span>nm\&nbsp;</span><em>Pna</em><span>2</span><span>1</span><span>-LiCoPO</span><span>4</span><span>\&nbsp;<a title="Learn more about Nanosphere from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/nanosphere">nanospheres</a><span>\&nbsp;prepared by a simple microwave-assisted solvothermal process. Unlike previous reports, the results indicate that the compound is\&nbsp;<a title="Learn more about Nonstoichiometric Compound from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/nonstoichiometric-compound">non-stoichiometric</a>\&nbsp;and shows cation-mixing with Co ions on the Li sites, which provides an explanation for the poor electrochemical performance. Co\&nbsp;</span></span><em>L</em><span>2,3</span><span>-edge X-ray absorption\&nbsp;<a title="Learn more about Substance Spectroscopy from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/substance-spectroscopy">spectroscopic data</a>\&nbsp;confirm the local tetrahedral symmetry of Co</span><span>2+</span><span><span>. Comprehensive studies on the thermal stability using\&nbsp;<a title="Learn more about Thermogravimetric Analysis from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/thermogravimetric-analysis">thermogravimetric analysis</a>,\&nbsp;</span><a title="Learn more about Differential Scanning Calorimetry from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/materials-science/differential-scanning-calorimetry">differential scanning calorimetry</a>, and\&nbsp;</span><em>in situ</em><span>\&nbsp;<a title="Learn more about Powder X-Ray Diffraction from ScienceDirect{\textquoteright}s AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/materials-science/powder-x-ray-diffraction">powder X-ray diffraction</a>\&nbsp;show an exothermic phase transition to olivine\&nbsp;</span><em>Pnma</em><span>-LiCoPO</span><span>4</span><span>\&nbsp;at 527</span><span>\&nbsp;</span><span>{\textdegree}C. The influence of the atmosphere and the particle size on the thermal stability is also investigated.</span></p>},
  year = {2017},
  booktitle = {Journal of Solid State Chemistry},
  journal = {Journal of Solid State Chemistry},
  series = {Journal of Solid State Chemistry},
  volume = {248},
  pages = {9 - 17},
  month = {04/2017},
  issn = {00224596},
  doi = {10.1016/j.jssc.2017.01.015},
  language = {eng},
}