TY - JOUR
T1 - Effect of peptide nanotube filler on structural and ion-transport properties of solid polymer electrolytes
AU - Goldshtein, K.
AU - Golodnitsky, D.
AU - Peled, E.
AU - Adler-Abramovich, L.
AU - Gazit, E.
AU - Khatun, S.
AU - Stallworth, P.
AU - Greenbaum, S.
N1 - Funding Information:
We thank the United States–Israel Binational Science Foundation (research grant 2006149 ) for financial support of the project. The work (NMR measurements) at Hunter College was supported by Grant # DE-SC0005029 from the United States Department of Energy .
PY - 2012/7/20
Y1 - 2012/7/20
N2 - Casting, under an inhomogeneous magnetic field, of polymer electrolytes (PE) containing only 1% of aromatic diphenylalanine peptide nanotubes coated with ferrofluid (FF-PNT) increases the total PE conductivity at room temperature by two orders of magnitude, as compared to pristine PEs. The magnetically oriented FF-PNT-modified PE cast under MF is thermally stable. Even after 1 month of storage at 70°C it retains conductivity values that are very close to that of the freshly-cast film. As opposed to other fillers tested so far, the incorporation of FF-PNT to the pristine PE eliminates formation of large spherulites. A highly-homogeneous, fine-grained morphology with well-defined round-shaped crystallites develops in this composite PE under an applied MF. The XRD patterns make it clear that the applied magnetic field influences the crystallinity of the PE containing FF-PNTs more strongly than it does that of pristine films. Significant orientation effects are observed for LiTf:P(EO) 3 + 1% (w/w) FF-PNTs by 7Li nuclear magnetic resonance measurements, as well.
AB - Casting, under an inhomogeneous magnetic field, of polymer electrolytes (PE) containing only 1% of aromatic diphenylalanine peptide nanotubes coated with ferrofluid (FF-PNT) increases the total PE conductivity at room temperature by two orders of magnitude, as compared to pristine PEs. The magnetically oriented FF-PNT-modified PE cast under MF is thermally stable. Even after 1 month of storage at 70°C it retains conductivity values that are very close to that of the freshly-cast film. As opposed to other fillers tested so far, the incorporation of FF-PNT to the pristine PE eliminates formation of large spherulites. A highly-homogeneous, fine-grained morphology with well-defined round-shaped crystallites develops in this composite PE under an applied MF. The XRD patterns make it clear that the applied magnetic field influences the crystallinity of the PE containing FF-PNTs more strongly than it does that of pristine films. Significant orientation effects are observed for LiTf:P(EO) 3 + 1% (w/w) FF-PNTs by 7Li nuclear magnetic resonance measurements, as well.
KW - Magnetic field
KW - Ordered polymer electrolytes
KW - Peptide nanotubes
KW - Solid polymer electrolyte
UR - http://www.scopus.com/inward/record.url?scp=84862759938&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2012.05.028
DO - 10.1016/j.ssi.2012.05.028
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AN - SCOPUS:84862759938
SN - 0167-2738
VL - 220
SP - 39
EP - 46
JO - Solid State Ionics
JF - Solid State Ionics
ER -