Article

 

ChengMolecularStorageofMgIonsSupportingInfo.pdf Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/12579t757

Descriptions

Attribute NameValues
Creator
Abstract
  • Mg batteries have potential advantages in terms of safety, cost, and reliability over existing battery technologies, but their practical implementations are hindered by the lack of amenable high-voltage cathode materials. The development of cathode materials is complicated by limited understandings of the unique divalent Mg²⁺ ion electrochemistry and the interaction/transportation of Mg²⁺ ions with host materials. Here, it is shown that highly dispersed vanadium oxide (V₂O₅) nanoclusters supported on porous carbon frameworks are able to react with Mg²⁺ ions reversibly in electrolytes that are compatible with Mg metal, and exhibit high capacities and good reaction kinetics. They are able to deliver initial capacities exceeding 300 mAh g⁻¹ at 40 mA g⁻¹ in the voltage window of 0.5 to 2.8 V. The combined electron microscope, spectroscopy, and electrochemistry characterizations suggest a surface-controlled pseudocapacitive electrochemical reaction, and may be best described as a molecular energy storage mechanism. This work can provide a new approach of using the molecular mechanism for pseudocapacitive storage of Mg²⁺ for Mg batteries cathode materials.
Rights Statement
Additional Information
  • description.provenance : Submitted by Open Access (openaccess@library.oregonstate.edu) on 2016-07-01T15:34:13Z No. of bitstreams: 2 ChengMolecularStorageofMgIons.pdf: 3033607 bytes, checksum: 2b5e3be7a0e2a6a11216b442086040aa (MD5) ChengMolecularStorageofMgIonsSupportingInfo.pdf: 428699 bytes, checksum: 22447cdca7116a4b5e29c8893c8ff314 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-07-01T15:42:22Z (GMT) No. of bitstreams: 3 krauserp123579389.zip: 3338104 bytes, checksum: 8e924bb0c3602133ba6322765b9a001a (MD5) ChengMolecularStorageofMgIons.pdf: 3033607 bytes, checksum: 2b5e3be7a0e2a6a11216b442086040aa (MD5) ChengMolecularStorageofMgIonsSupportingInfo.pdf: 428699 bytes, checksum: 22447cdca7116a4b5e29c8893c8ff314 (MD5)
  • description.provenance : Made available in DSpace on 2016-07-01T15:42:22Z (GMT). No. of bitstreams: 3 krauserp123579389.zip: 3338104 bytes, checksum: 8e924bb0c3602133ba6322765b9a001a (MD5) ChengMolecularStorageofMgIons.pdf: 3033607 bytes, checksum: 2b5e3be7a0e2a6a11216b442086040aa (MD5) ChengMolecularStorageofMgIonsSupportingInfo.pdf: 428699 bytes, checksum: 22447cdca7116a4b5e29c8893c8ff314 (MD5) Previous issue date: 2016-05-24

Relationships

Parents:

Items