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Amorphous Iron Oxyhydroxide Nanosheets: Synthesis, Li Storage, and Conversion Reaction Kinetics
dc.contributor.author | Xu, Chen | |
dc.contributor.author | Zeng, Yi | |
dc.contributor.author | Rui, Xianhong | |
dc.contributor.author | Zhu, Jixin | |
dc.contributor.author | Tan, Huiteng | |
dc.contributor.author | Guerrero, Antonio | |
dc.contributor.author | Toribio, Juan | |
dc.contributor.author | Bisquert, Juan | |
dc.contributor.author | Garcia-Belmonte, Germà | |
dc.contributor.author | Yan, Qingyu | |
dc.date.accessioned | 2014-03-03T10:44:50Z | |
dc.date.available | 2014-03-03T10:44:50Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | XU, Chen, et al. Amorphous Iron Oxyhydroxide Nanosheets: Synthesis, Li Storage, and Conversion Reaction Kinetics. The Journal of Physical Chemistry C, 2013, vol. 117, no 34, p. 17462-17469. | ca_CA |
dc.identifier.issn | 1932-7447 | |
dc.identifier.issn | 1932-7455 | |
dc.identifier.uri | http://hdl.handle.net/10234/85070 | |
dc.description.abstract | We present a facile approach to synthesize amorphous iron oxyhydroxide nanosheet from the surfactant-assisted oxidation of iron sulfide nanosheet. The amorphous iron oxyhydroxide nanosheet is porous and has a high surface area of 223 m(2) g(-1). The lithium storage properties of the amorphous iron oxyhydroxide are characterized: it is a conversion-reaction electrode material, and it demonstrates superior rate capabilities (e.g., discharge capacities as high as 642 mAh g(-1) are delivered at a current density of 2 C). The impedance spectroscopy analysis identifies a RC series subcircuit originated by the conversion-reaction process. Investigation of the conversion-reaction kinetics through the RC subcircuit time constant reproduces the hysteresis in the discharge/charge voltage profile. Hysteresis is then connected to underlying thermodynamics of the conversion reaction rather than to a kinetic limitation. | ca_CA |
dc.description.sponsorShip | We thank financial support from Generalitat Valenciana (ISIC/2012/008 Institute of Nanotechnologies for Clean Energies) and FP7 European project ORION (Large CP-IP 229036-2). We thank the financial support by the Singapore National Research Foundation (NRF) through its Campus for Research Excellence and Technological Enterprise (CREATE) program. | ca_CA |
dc.format.extent | 8 p. | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | The Journal of Physical Chemistry C (2013) vol. 117, no 34 | ca_CA |
dc.rights | Copyright © 2013 American Chemical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Lithium-ion batteries | ca_CA |
dc.subject | Capacity fade | ca_CA |
dc.subject | Electrochemical impedance | ca_CA |
dc.subject | Electrode materials | ca_CA |
dc.subject | Hollow spheres | ca_CA |
dc.subject | Intercalation | ca_CA |
dc.subject | Performance | ca_CA |
dc.subject | Capability | ca_CA |
dc.subject | Graphene | ca_CA |
dc.subject | Cchallenges | ca_CA |
dc.title | Amorphous Iron Oxyhydroxide Nanosheets: Synthesis, Li Storage, and Conversion Reaction Kinetics | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/jp405848j | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/abs/10.1021/jp405848j | ca_CA |
dc.type.version | info:eu-repo/semantics/submittedVersion |
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