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dc.contributor.authorXu, Chen
dc.contributor.authorZeng, Yi
dc.contributor.authorRui, Xianhong
dc.contributor.authorZhu, Jixin
dc.contributor.authorTan, Huiteng
dc.contributor.authorGuerrero, Antonio
dc.contributor.authorToribio, Juan
dc.contributor.authorBisquert, Juan
dc.contributor.authorGarcia-Belmonte, Germà
dc.contributor.authorYan, Qingyu
dc.date.accessioned2014-03-03T10:44:50Z
dc.date.available2014-03-03T10:44:50Z
dc.date.issued2013
dc.identifier.citationXU, 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.issn1932-7447
dc.identifier.issn1932-7455
dc.identifier.urihttp://hdl.handle.net/10234/85070
dc.description.abstractWe 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.sponsorShipWe 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.extent8 p.ca_CA
dc.language.isoengca_CA
dc.publisherAmerican Chemical Societyca_CA
dc.relation.isPartOfThe Journal of Physical Chemistry C (2013) vol. 117, no 34ca_CA
dc.rightsCopyright © 2013 American Chemical Societyca_CA
dc.subjectLithium-ion batteriesca_CA
dc.subjectCapacity fadeca_CA
dc.subjectElectrochemical impedanceca_CA
dc.subjectElectrode materialsca_CA
dc.subjectHollow spheresca_CA
dc.subjectIntercalationca_CA
dc.subjectPerformanceca_CA
dc.subjectCapabilityca_CA
dc.subjectGrapheneca_CA
dc.subjectCchallengesca_CA
dc.titleAmorphous Iron Oxyhydroxide Nanosheets: Synthesis, Li Storage, and Conversion Reaction Kineticsca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1021/jp405848j
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://pubs.acs.org/doi/abs/10.1021/jp405848jca_CA


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