A Molecular-Scale Approach to Rare-Earth Beneficiation: Thinking Small to Avoid Large Losses

Autor: Robert C. Chapleski, Jr., Azhad U. Chowdhury, Anna K. Wanhala, Vera Bocharova, Santanu Roy, Philip C. Keller, Dylan Everly, Santa Jansone-Popova, Alexander Kisliuk, Robert L. Sacci, Andrew G. Stack, Corby G. Anderson, Benjamin Doughty, Vyacheslav S. Bryantsev

Publikováno v: iScience, Vol 23, Iss 9, Pp 101435- (2020)

Summary: Separating rare-earth-element-rich minerals from unwanted gangue in mined ores relies on selective binding of collector molecules at the interface to facilitate froth flotation. Salicylhydroxamic acid (SHA) exhibits enhanced selectivity for

Externí odkaz: https://doaj.org/article/24f09abe47e8481eb5b702371798bf9c

Unraveling the Molecular Weight Dependence of Interfacial Interactions in Poly(2-vinylpyridine)/Silica Nanocomposites

Autor: Adam P. Holt, Alexei P. Sokolov, Mark Dadmun, Alexander Kisliuk, Shiwang Cheng, Dmitry Voylov, Halie Martin, Vera Bocharova, Harry M. Meyer, Benjamin Doughty

Publikováno v: ACS macro letters. 6(2)

The structure and polymer–nanoparticle interactions among physically adsorbed poly(2-vinylpyridine) chains on the surface of silica nanoparticles (NPs) were systematically studied as a function of molecular weight (MW) by sum frequency generation (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62585dc5e30f3b176ad477b3cd7040ae
https://pubmed.ncbi.nlm.nih.gov/35632893

Role of Fast Dynamics in Conductivity of Polymerized Ionic Liquids

Autor: Naresh C. Osti, Vera Bocharova, Anne-Caroline Genix, Gabriele Sala, Alexander Kisliuk, Alexei P. Sokolov, Eugene Mamontov

Publikováno v: Journal of Physical Chemistry B
Journal of Physical Chemistry B, American Chemical Society, 2020, 124 (46), pp.10539-10545. ⟨10.1021/acs.jpcb.0c07549⟩

International audience; Polymerized ionic liquids (PolyILs) are promising candidates for a broad range of technologies. However, the relatively low conductivity of PolyILs at room temperature has strongly limited their applications. In this work, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc36f18b531c823cde6ee7a7e8480768
https://doi.org/10.1021/acs.jpcb.0c07549

Fundamental parameters governing ion conductivity in polymer electrolytes

Autor: Alexander Kisliuk, Ivan Popov, Catalin Gainaru, Vera Bocharova, Alexei P. Sokolov

Publikováno v: Electrochimica Acta. 299:191-196

We analyze conductivity of polymerized ionic liquids with focus on fundamental limitations hindering faster charge transport in polymer electrolytes. We emphasize that to achieve the required ionic conductivity ∼10−3 S/cm in dry polymer electroly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e02f42feee94729de3086f4b2d63fe79
https://doi.org/10.1016/j.electacta.2018.12.143

Diffusion of Sticky Nanoparticles in a Polymer Melt: Crossover from Suppressed to Enhanced Transport

Autor: Bobby G. Sumpter, Alexei P. Sokolov, Bobby Carroll, Shiwang Cheng, Alexander Kisliuk, Jan-Michael Y. Carrillo, Vera Bocharova, Kenneth S. Schweizer, Umi Yamamoto

Publikováno v: Macromolecules. 51:2268-2275

The self-diffusion of a single large particle in a fluid is usually described by the classic Stokes–Einstein (SE) hydrodynamic relation. However, there are many fluids where the SE prediction for nanoparticles diffusion fails. These systems include

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a56c2700366f60d63e97e402a8c03842
https://doi.org/10.1021/acs.macromol.7b02695