Layered graphitic carbon host formation during liquid-free solid state growth of metal pyrophosphates
| dc.contributor.author | Díaz, Carlos | |
| dc.contributor.author | Valenzuela, María Luisa | |
| dc.contributor.author | Lavayen, Vladimir | |
| dc.contributor.author | O'Dwyer, Colm | |
| dc.contributor.funder | Science Foundation Ireland | en |
| dc.date.accessioned | 2016-06-29T11:00:40Z | |
| dc.date.available | 2016-06-29T11:00:40Z | |
| dc.date.issued | 2012-05-15 | |
| dc.date.updated | 2012-11-29T17:21:23Z | |
| dc.description.abstract | We report a successful ligand- and liquid-free solid state route to form metal pyrophosphates within a layered graphitic carbon matrix through a single step approach involving pyrolysis of previously synthesized organometallic derivatives of a cyclotriphosphazene. In this case, we show how single crystal Mn2P2O7 can be formed on either the micro- or the nanoscale in the complete absence of solvents or solutions by an efficient combustion process using rationally designed macromolecular trimer precursors, and present evidence and a mechanism for layered graphite host formation. Using in situ Raman spectroscopy, infrared spectroscopy, X-ray diffraction, high resolution electron microscopy, thermogravimetric and differential scanning calorimetric analysis, and near-edge X-ray absorption fine structure examination, we monitor the formation process of a layered, graphitic carbon in the matrix. The identification of thermally and electrically conductive graphitic carbon host formation is important for the further development of this general ligand-free synthetic approach for inorganic nanocrystal growth in the solid state, and can be extended to form a range of transition metals pyrophosphates. For important energy storage applications, the method gives the ability to form oxide and (pyro)phosphates within a conductive, intercalation possible, graphitic carbon as host–guest composites directly on substrates for high rate Li-ion battery and emerging alternative positive electrode materials | en |
| dc.description.sponsorship | Fondo Nacional de Desarrollo Científico y Tecnológico, Chile (FONDECYT project 1085011); Irish Government (INSPIRE program, Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007-2013); Science Foundation Ireland (SFI contract no. 07/SK/B1232a.) | en |
| dc.description.status | Peer reviewed | en |
| dc.description.version | Accepted Version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Diaz, C., Valenzuela, M. L., Lavayen, V. and O'Dwyer, C. (2012) 'Layered graphitic carbon host formation during liquid-free solid state growth of metal pyrophosphates', Inorganic Chemistry, 51(11), pp 6228–6236. http://dx.doi.org/10.1021/ic300767h | en |
| dc.identifier.doi | 10.1021/ic300767h | |
| dc.identifier.endpage | 6236 | en |
| dc.identifier.issn | 0020-1669 | |
| dc.identifier.issued | 11 | en |
| dc.identifier.journaltitle | Inorganic Chemistry | en |
| dc.identifier.startpage | 6228 | en |
| dc.identifier.uri | https://hdl.handle.net/10468/2808 | |
| dc.identifier.volume | 51 | en |
| dc.language.iso | en | en |
| dc.publisher | American Chemical Society | en |
| dc.rights | © 2012 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/ic300767h | en |
| dc.subject | Metal pyrophosphates | en |
| dc.subject | Raman spectroscopy | en |
| dc.subject | Infrared spectroscopy | en |
| dc.subject | Graphitic carbon | en |
| dc.title | Layered graphitic carbon host formation during liquid-free solid state growth of metal pyrophosphates | en |
| dc.type | Article (peer-reviewed) | en |
