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  • 1
    Electronic Resource
    Electronic Resource
    Instrumentation and data acquisition for in situ electrochemistry at the Daresbury SRS : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2386-2389 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: X-ray diffraction and absorption spectroscopy provide complementary structural tools for the in situ characterization of electrode surfaces. To optimize surface sensitivity, techniques such as glancing angle scattering geometries and spectrum differencing can be employed while the application of synchrotron radiation allows the real-time collection of data. This paper outlines recent developments in in situ electrochemistry on the Daresbury SRS and describes an electrochemical cell for in situ x-ray studies, associated glancing angle instrumentation, together with computer hardware and software optimized for data acquisition using potential modulation techniques. Important fundamental and industrial applications are highlighted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140727
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    X-ray design constraints for in situ electrochemical cells: importance of window material, electrolyte and X-ray wavelength (1999)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 32 (1999), S. 369-372 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The need to calculate X-ray absorption losses through window materials and electrolytes in electrochemical cells used for in situ X-ray studies is highlighted. Calculations of the loss of beam intensity through Mylar windows of various thicknesses and at different wavelengths are carried out. Other window materials, such as polyethylene, polyimide (Kapton), polymethylmethacrylate (Perspex), polycarbonate (Lexan) and polyamide (Kevlar), are considered. Linear absorption coefficients and loss of intensity through different thicknesses of these materials at the Cu Kα wavelength are considered. Calculations of loss of intensity for a typical experimental case involving a Mylar cell window and a 1.029 M H2SO4 electrolyte are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889898011662
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mass transport to reticulated vitreous carbon rotating cylinder electrodes (1995)
    Springer
    Journal of applied electrochemistry 25 (1995), S. 450-455 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Mass transport to rotating cylinder electrodes (radius 0.5 cm and height 1.2 cm) fabricated from reticulated vitreous carbon (RVCRCE) was investigated using linear sweep voltammetry in a 0.5 m Na2SO4 + 1 mm CUSO4 electrolyte at pH 2. At a fixed cupric ion concentration the limiting current was found to be dependent upon velocity to the power 0.55 to 0.71 depending upon the porosity grade of the carbon foam. The product of mass transport coefficient and specific electrode area, km A e, was found to be approximately 0.51 s−1 at 157 rad s−1 (corresponding to 1500 rpm) for the 100 ppi material. The experimental data are compared to the predicted performance of a hydrodynamically smooth rotating disc electrode (RDE) and rotating cylinder electrode (RCS).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260687
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Scanning probe microscopy studies of Ebonex® electrodes (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 815-820 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The porosity of Ebonex® electrodes is known to have a marked affect on their electrochemical properties. Atomic force microscopy (AFM) and scanning tunnelling microscopy (STM) have been used to investigate the topography of porous and fully-hardened (nonporous) Ebonex® at high resolution. AFM has also been used to study the early stages of copper electrodeposition on porous Ebonex® electrodes. Initial copper nucleation and growth were found to occur preferentially at surface pores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018472828682
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    Paper (German National Licenses)
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