Your browser doesn't support javascript.
loading
Modulation of Cation Diffusion by Reversible Supramolecular Assemblies in Ionic Liquid-Based Nanocomposites.
Bocharova, Vera; Jayakody, Nishani; Yang, Jie; Sacci, Robert L; Yang, Wei; Cheng, Shiwang; Doughty, Benjamin; Greenbaum, Steven; Jeong, Seung Pyo; Popov, Ivan; Zhao, Sheng; Gainaru, Catalin; Wojnarowska, Zaneta.
Afiliación
  • Bocharova V; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
  • Jayakody N; Department of Physics & Astronomy, Hunter College of the City University of New York, New York, New York 10065, United States.
  • Yang J; Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48864, United States.
  • Sacci RL; College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China.
  • Yang W; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
  • Cheng S; College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China.
  • Doughty B; Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48864, United States.
  • Greenbaum S; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
  • Jeong SP; Department of Physics & Astronomy, Hunter College of the City University of New York, New York, New York 10065, United States.
  • Popov I; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
  • Zhao S; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
  • Gainaru C; Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States.
  • Wojnarowska Z; Fakultät Physik, Technische Universität Dortmund, 44221 Dortmund, Germany.
ACS Appl Mater Interfaces ; 12(28): 31842-31851, 2020 Jul 15.
Article en En | MEDLINE | ID: mdl-32567831
Ionic liquid (IL) properties, such as high ionic conductivity under ambient conditions combined with nontoxicity and nonflammability, make them important materials for future technologies. Despite high ion conductivity desired for battery applications, cation transport numbers in ILs are not sufficient enough to attain high power density batteries. Thus, developing novel approaches directed toward improvement of cation transport properties is required for the application of ILs in energy-storing devices. In this effort, we used various experimental techniques to demonstrate that the strategy of mixing ILs with ultrasmall (1.8 nm) nanoparticles (NPs) resulted in melt-processable composites with improved transport numbers for cations at room temperature. This significant enhancement in the transport number was attributed to the specific chemistry of NPs exhibiting a weaker cation and stronger anion coordination at ambient temperature. At high temperature, significantly weakened NP-anion associations promoted a liquid-like behavior of composites, highlighting the melt-processability of these composites. These results show that designing a reversible dynamic noncovalent NP-anion association controlled by the temperature may constitute an effective strategy to control ion diffusion. Our studies provide fundamental insights into mechanisms driving the charge transport and offer practical guidance for the design of melt-processable composites with an improved cation transport number under ambient conditions.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Guideline Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos