Polyrhodamine: A redox stable conducting polyelectrolyte

2021 ◽  
Author(s):  
Ranganath Wahalathantrige Don ◽  
Timothy J Dowell ◽  
Briana L. Simms ◽  
Davita Watkins ◽  
David Wipf ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Photoluminescence Properties ◽  
Redox Stability ◽  
Rhodamine Dyes

Rhodamine dyes are known for their excellent photoluminescence properties but not commonly known for their electrical conductivity or redox stability. They are usually found as pendants (sidechains) attached to a...

scholarly journals Enhancement of redox stability and electrical conductivity by doping various metals on ceria, Ce 1−x M x O 2−δ (M = Ni, Cu, Co, Mn, Ti, Zr)

2015 ◽  
Vol 40 (35) ◽  
pp. 12003-12008 ◽  
Author(s):  
Jae-ha Myung ◽  
Tae Ho Shin ◽  
Xiubing Huang ◽  
George Carins ◽  
John T.S. Irvine
Keyword(s):  
Electrical Conductivity ◽  
Redox Stability

scholarly journals Tin doped PrBaFe2O5+δ anode material for solid oxide fuel cells

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 22649-22661 ◽  
Author(s):  
Guohui Dong ◽  
Chunyang Yang ◽  
Fei He ◽  
Yanmei Jiang ◽  
Chunlei Ren ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Anode Material ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
High Electrical Conductivity ◽  
Symmetrical Cell ◽  
Redox Stability ◽  
Better Than

PrBaFe1.9Sn0.1O5+δ shows excellent redox stability, high electrical conductivity, and ASR of a symmetrical cell as low as of 0.095–0.285 Ω cm2 from 850–750 °C in wet hydrogen, better than or comparable to the best of ceramic anodes in the open literature.

scholarly journals The effect of metalation processes on polymer morphology and conductivity properties

2021 ◽  
pp. 096739112110482
Author(s):  
Oğuz Yunus Sarıbıyık ◽  
İlyas Gönül ◽  
Burak Ay ◽  
Serkan Karaca
Keyword(s):  
Electron Microscopy ◽  
Electrical Conductivity ◽  
Scanning Electron Microscopy ◽  
Three Dimensional ◽  
Spectroscopic Methods ◽  
Spectral Features ◽  
Photoluminescence Properties ◽  
Polymer Morphology ◽  
Polymeric Structures ◽  
Scanning Electron

In this work, an insoluble three dimensional (3D) porous polymeric structure and their metal complexes were synthesised by the condensation reactions of meta(m)-phenylenediamine, para(p)-phenylenediamine and glutaraldehyde. The morphological and spectral features of the porous polymeric structures were determined using different analytical and spectroscopic methods, including field emission scanning electron microscopy, four-point probe electrical conductivity, photoluminescence spectroscopy, Fourier-transform infrared spectroscopy, surface area Brunauer–Emmett–Teller and magnetic and thermal behaviours. According to the obtained data, the shape, size and photoluminescence properties of the compounds, especially the conductivity, were clearly changed after the metalation processes.

Effects of transition metal additives on redox stability and high-temperature electrical conductivity of (Fe,Mg)3O4 spinels

2014 ◽  
Vol 34 (10) ◽  
pp. 2339-2350 ◽  
Author(s):  
N.M. Ferreira ◽  
A.V. Kovalevsky ◽  
E.N. Naumovich ◽  
A.A. Yaremchenko ◽  
K.V. Zakharchuk ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
High Temperature ◽  
Transition Metal ◽  
Metal Additives ◽  
Redox Stability

Electrical conductivity and redox stability of La2Mo2−xWxO9 materials

2005 ◽  
Vol 50 (22) ◽  
pp. 4385-4395 ◽  
Author(s):  
D. Marrero-López ◽  
J. Canales-Vázquez ◽  
J.C. Ruiz-Morales ◽  
J.T.S. Irvine ◽  
P. Núñez
Keyword(s):  
Electrical Conductivity ◽  
Redox Stability

Redox stability and electrical conductivity of Fe2.3Mg0.7O4±δ spinel prepared by mechanochemical activation

2013 ◽  
Vol 33 (7) ◽  
pp. 1307-1315 ◽  
Author(s):  
E.M. Domingues ◽  
E.V. Tsipis ◽  
A.A. Yaremchenko ◽  
F.M. Figueiredo ◽  
J.C. Waerenborgh ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Mechanochemical Activation ◽  
Redox Stability

Redox stability and high-temperature electrical conductivity of magnesium- and aluminium-substituted magnetite

2013 ◽  
Vol 33 (13-14) ◽  
pp. 2751-2760 ◽  
Author(s):  
A.V. Kovalevsky ◽  
A.A. Yaremchenko ◽  
E.N. Naumovich ◽  
N.M. Ferreira ◽  
S.M. Mikhalev ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
High Temperature ◽  
Redox Stability

Removing Substrate Background in TEM Microanalysis

1974 ◽  
Vol 32 ◽  
pp. 568-569
Author(s):  
John C. Russ ◽  
Nicholas C. Barbi
Keyword(s):  
Electrical Conductivity ◽  
Rapid Growth ◽  
Organic Film ◽  
Absolute Concentration ◽  
Background Signal ◽  
X Ray ◽  
Elemental Concentrations ◽  
Transmission Electron ◽  
Electron Microscopes ◽  
The Continuum

The rapid growth of interest in attaching energy-dispersive x-ray analysis systems to transmission electron microscopes has centered largely on microanalysis of biological specimens. These are frequently either embedded in plastic or supported by an organic film, which is of great importance as regards stability under the beam since it provides thermal and electrical conductivity from the specimen to the grid.Unfortunately, the supporting medium also produces continuum x-radiation or Bremsstrahlung, which is added to the x-ray spectrum from the sample. It is not difficult to separate the characteristic peaks from the elements in the specimen from the total continuum background, but sometimes it is also necessary to separate the continuum due to the sample from that due to the support. For instance, it is possible to compute relative elemental concentrations in the sample, without standards, based on the relative net characteristic elemental intensities without regard to background; but to calculate absolute concentration, it is necessary to use the background signal itself as a measure of the total excited specimen mass.

Macromolecular structures of biological specimens are not obscured by controlled osmium impregnation

1983 ◽  
Vol 41 ◽  
pp. 606-607
Author(s):  
Klaus-Ruediger Peters ◽  
Samuel A. Green
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Critical Point ◽  
Metal Films ◽  
High Magnification ◽  
Osmium Impregnation ◽  
Instrumental Resolution ◽  
20 Nm ◽  
Continuous Metal

High magnification imaging of macromolecules on metal coated biological specimens is limited only by wet preparation procedures since recently obtained instrumental resolution allows visualization of topographic structures as smal l as 1-2 nm. Details of such dimensions may be visualized if continuous metal films with a thickness of 2 nm or less are applied. Such thin films give sufficient contrast in TEM as well as in SEM (SE-I image mode). The requisite increase in electrical conductivity for SEM of biological specimens is achieved through the use of ligand mediated wet osmiuum impregnation of the specimen before critical point (CP) drying. A commonly used ligand is thiocarbohvdrazide (TCH), first introduced to TEM for en block staining of lipids and glvcomacromolecules with osmium black. Now TCH is also used for SEM. However, after ligand mediated osinification nonspecific osmium black precipitates were often found obscuring surface details with large diffuse aggregates or with dense particular deposits, 2-20 nm in size. Thus, only low magnification work was considered possible after TCH appl ication.

Total Body Electrical Conductivity Measurements in the Neonate

1991 ◽  
Vol 18 (3) ◽  
pp. 611-627 ◽  
Author(s):  
Marta L. Fiorotto ◽  
William J. Klish
Keyword(s):  
Electrical Conductivity ◽  
Conductivity Measurements ◽  
Total Body
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