In Situ Recording of Particle Network Formation in Liquids by Ion Conductivity Measurements

2011 ◽  
Vol 133 (37) ◽  
pp. 14514-14517 ◽  
Author(s):  
Christian Pfaffenhuber ◽  
Seniz Sörgel ◽  
Katja Weichert ◽  
Marjan Bele ◽  
Tabea Mundinger ◽  
...  
Keyword(s):  
Network Formation ◽  
Ion Conductivity ◽  
Conductivity Measurements

Enhanced room temperature ionic conductivity of the LiBH4·1/2NH3–Al2O3 composite

2021 ◽  
Author(s):  
Ruixue Zhang ◽  
Wanying Zhao ◽  
Zhenzhen Liu ◽  
Shanghai Wei ◽  
Yigang Yan ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Ion Conductivity ◽  
Al2o3 Composite

In situ formed amorphous LiBH4·1/2NH3 on the surface of Al2O3 nanoparticles results in an enhanced ion conductivity of 1.1 × 10−3 S cm−1 at room temperature.

scholarly journals Structural relaxation in AgPO3 glass followed by in situ ionic conductivity measurements

2016 ◽  
Vol 437 ◽  
pp. 43-47 ◽  
Author(s):  
C.B. Bragatto ◽  
D.R. Cassar ◽  
O. Peitl ◽  
J.-L. Souquet ◽  
A.C.M. Rodrigues
Keyword(s):  
Ionic Conductivity ◽  
Structural Relaxation ◽  
Conductivity Measurements

Synthesis and Characterization of the PANI/ITO Conducting Nanocomposites

2010 ◽  
Vol 663-665 ◽  
pp. 542-545 ◽  
Author(s):  
Bing Jie Zhu ◽  
Xin Wei Wang ◽  
Mei Fang Zhu ◽  
Qing Hong Zhang ◽  
Yao Gang Li ◽  
...  
Keyword(s):  
Doping Concentration ◽  
In Situ Polymerization ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
X Ray Diffraction ◽  
X Ray ◽  
Maximum Conductivity ◽  
Scanning Electron

The PANI/ITO conducting nanocomposites have been synthesized by in-situ polymerization. The obtained nanocomposites were characterized by X-ray diffraction pattern, scanning electron microscopy and Fourier transform infrared. Electrical conductivity measurements on the samples pressed into pellets showed that the maximum conductivity attained 2.0 ± 0.05 S/cm for PANI/ITO nanocomposites, at ITO doping concentration of 10 wt%. The results of the present work may provide a simple, rapid and efficient approach for preparing PANI/ITO nanocomposites.

Characterization of electrochemically prepared conductive polymers by in situ conductivity measurements

1989 ◽  
Vol 28 (1-2) ◽  
pp. 165-170 ◽  
Author(s):  
L. Olmedo ◽  
I. Chanteloube ◽  
A. Germain ◽  
M. Petit ◽  
E.M. Geniès
Keyword(s):  
Conductive Polymers ◽  
Conductivity Measurements

ELECTRICAL CONDUCTION THROUGH SURFACE SUPERSTRUCTURES MEASURED BY MICROSCOPIC FOUR-POINT PROBES

2003 ◽  
Vol 10 (06) ◽  
pp. 963-980 ◽  
Author(s):  
SHUJI HASEGAWA ◽  
ICHIRO SHIRAKI ◽  
FUHITO TANABE ◽  
REI HOBARA ◽  
TAIZO KANAGAWA ◽  
...  
Keyword(s):  
Scanning Tunneling Microscope ◽  
Scanning Tunneling ◽  
Conductivity Measurements ◽  
Crystal Surfaces ◽  
Tunneling Microscope ◽  
Silicon Chips ◽  
Surface Sensitivity ◽  
Scanning Electron ◽  
Probe Spacing

For in-situ measurements of the local electrical conductivity of well-defined crystal surfaces in ultrahigh vacuum, we have developed two kinds of microscopic four-point probe methods. One involves a "four-tip STM prober," in which four independently driven tips of a scanning tunneling microscope (STM) are used for measurements of four-point probe conductivity. The probe spacing can be changed from 500 nm to 1 mm. The other method involves monolithic micro-four-point probes, fabricated on silicon chips, whose probe spacing is fixed around several μm. These probes are installed in scanning-electron-microscopy/electron-diffraction chambers, in which the structures of sample surfaces and probe positions are observed in situ. The probes can be positioned precisely on aimed areas on the sample with the aid of piezoactuators. By the use of these machines, the surface sensitivity in conductivity measurements has been greatly enhanced compared with the macroscopic four-point probe method. Then the conduction through the topmost atomic layers (surface-state conductivity) and the influence of atomic steps on conductivity can be directly measured.

In situ conductivity measurements on polyethylenedioxythiophene derivatives with different counter ions

2002 ◽  
Vol 126 (2-3) ◽  
pp. 193-198 ◽  
Author(s):  
P.-H. Aubert ◽  
L. Groenendaal ◽  
F. Louwet ◽  
L. Lutsen ◽  
D. Vanderzande ◽  
...  
Keyword(s):  
Conductivity Measurements ◽  
Counter Ions

MICRO-FOUR-POINT PROBES IN A UHV SCANNING ELECTRON MICROSCOPE FOR IN-SITU SURFACE-CONDUCTIVITY MEASUREMENTS

2000 ◽  
Vol 07 (05n06) ◽  
pp. 533-537 ◽  
Author(s):  
ICHIRO SHIRAKI ◽  
TADAAKI NAGAO ◽  
SHUJI HASEGAWA ◽  
CHRISTIAN L. PETERSEN ◽  
PETER BØGGILD ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Defects ◽  
High Energy ◽  
Surface Conductivity ◽  
Conductivity Measurements ◽  
Surface Domains ◽  
Unambiguous Detection ◽  
Scanning Electron

For in-situ measurements of surface conductivity in ultrahigh vacuum (UHV), we have installed micro-four-point probes (probe spacings down to 4 μm) in a UHV scanning electron microscope (SEM) combined with scanning reflection–high-energy electron diffraction (RHEED). With the aid of piezoactuators for precise positioning of the probes, local conductivity of selected surface domains of well-defined superstructures could be measured during SEM and RHEED observations. It was found that the surface sensitivity of the conductivity measurements was enhanced by reducing the probe spacing, enabling the unambiguous detection of surface-state conductivity and the influence of surface defects on the electrical conduction.

Investigation on the Single-Ion Conductivity of PAN/Li-MMT Nanocomposite

2014 ◽  
Vol 925 ◽  
pp. 344-348
Author(s):  
Mitch Irene Kate N. Galvan ◽  
Junierose C. Diamante ◽  
Leslie Joy L. Diaz
Keyword(s):  
Electrical Conductivity ◽  
Ion Exchange ◽  
Ion Conductivity ◽  
Conductivity Measurements ◽  
Ion Conduction ◽  
Solution Intercalation

In this study, PCNs were synthesized using Li impregnated montmorillonite (Li-MMT) in PAN matrix to promote single-ion conduction. Ion exchange resulted to 4782.5 ± 112.5 ppm Li+ ions impregnated to MMT. Then, Li-MMT was incorporated to PAN via solution intercalation method. The investigation on the structure of PAN/Li-MMT nanocomposites showed that PAN was partially intercalated with Li-MMT. Moreover, electrical conductivity measurements showed that the conductivity for PCN with 15wt% Li-MMT was 3.58x10-8 S/cm.

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