scholarly journals Electrochemical characteristics of nanostructured platinum electrodes – a cyclic voltammetry study

2014 ◽  
Vol 16 (18) ◽  
pp. 8392-8399 ◽  
Author(s):  
P. Daubinger ◽  
J. Kieninger ◽  
T. Unmüssig ◽  
G. A. Urban
Keyword(s):  
Cyclic Voltammetry ◽  
Active Surface ◽  
Electrochemical Characteristics ◽  
Platinum Electrodes ◽  
Surface Areas ◽  
Electrochemically Active ◽  
Electrochemical Phenomena ◽  
Electrochemically Active Surface

This article describes the electrochemical phenomena occurring at nanostructured platinum electrodes with high electrochemically active surface areas.

PtM/C (M = Ni, Cu, or Ag) electrocatalysts: effects of alloying components on morphology and electrochemically active surface areas

2013 ◽  
Vol 18 (5) ◽  
pp. 1307-1317 ◽  
Author(s):  
V. E. Guterman ◽  
T. A. Lastovina ◽  
S. V. Belenov ◽  
N. Yu. Tabachkova ◽  
V. G. Vlasenko ◽  
...  
Keyword(s):  
Active Surface ◽  
Surface Areas ◽  
Electrochemically Active ◽  
Electrochemically Active Surface

scholarly journals Impedance Spectroscopy and Cyclic Voltammetry to Determine Double Layer Capacitances and Electrochemically Active Surface Areas

2018 ◽  
Author(s):  
Maximilian Schalenbach
Keyword(s):  
Cyclic Voltammetry ◽  
Impedance Spectroscopy ◽  
Frequency Domain ◽  
Surface Area ◽  
Double Layer ◽  
Active Surface ◽  
Scattering Data ◽  
Gold Electrodes ◽  
Electrochemically Active ◽  
Electrochemically Active Surface

The electrochemically active surface area (ECSA) of an electrode can be estimated by means of double layer capacitance (DLC) measurements using impedance spectroscopy and cyclic voltammetry. In this study, the responses of smooth and porous gold electrodes (chosen as model systems) to both methods are measured and described by physical models. I point out that diffusion limited adsorption processes significantly contribute to the measured responses and thus complicate the estimation of DLCs. Impedance is derived to be in most cases more suitable for measuring DLCs as higher frequencies are available and as contributions of serial resistances and capacitances can be separately evaluated in the frequency domain. The relaxation properties in the frequency domain are shown to display a useful tool to survey the accuracy of the DLC estimation. The DLCs of polished gold electrodes are shown to be proportional to their geometric surface area. From these measurements a specific DLC of 6±2 μF/cm² of gold in perchloric acid is determined, which agrees with the lowest reported values of strongly scattering data in the literature. A handy flow chart for experimentalists to determine electrode capacitances from impedance spectra is proposed.

Electrochemically Active Surface Zirconium Complexes on Indium Tin Oxide

Langmuir ◽  
1999 ◽  
Vol 15 (19) ◽  
pp. 6598-6600 ◽  
Author(s):  
Susan K. VanderKam ◽  
Ellen S. Gawalt ◽  
Jeffrey Schwartz ◽  
Andrew B. Bocarsly
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Active Surface ◽  
Zirconium Complexes ◽  
Electrochemically Active ◽  
Electrochemically Active Surface

Ultrathin nickel boride nanosheets anchored on functionalized carbon nanotubes as bifunctional electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (2) ◽  
pp. 764-774 ◽  
Author(s):  
Xuncai Chen ◽  
Zixun Yu ◽  
Li Wei ◽  
Zheng Zhou ◽  
Shengli Zhai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Active Surface ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Transfer Resistance ◽  
Functionalized Carbon Nanotubes ◽  
Electrochemically Active ◽  
Metal Borides ◽  
Electrochemically Active Surface

Carbon nanotubes increase electrochemically active surface area and reduce charge transfer resistance of transition metal borides.

Microstructure and electrochemically active surface area of PtM/C electrocatalysts

2011 ◽  
Vol 47 (8) ◽  
pp. 933-939 ◽  
Author(s):  
V. E. Guterman ◽  
S. V. Belenov ◽  
T. A. Lastovina ◽  
E. P. Fokina ◽  
N. V. Prutsakova ◽  
...  
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Electrochemically Active Surface
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