Electrochemical cell for in situ x-ray diffraction under ultrapure conditions

T. Koop, W. Schindler, A. Kazimirov, G. Scherb, J. Zegenhagen, T. Schulz, R. Feidenhans'l, J. Kirschner

    Research output: Contribution to journalJournal articleResearch


    An electrochemical cell has been developed for in situ x-ray diffraction from a working electrode under clean conditions equivalent to ultrahigh vacuum conditions of 5 x 10(-10) mbar. The substrate crystals can be prepared ex situ and transferred into the cell under protection of ultrapure water within a few seconds. The oxygen level in the electrolyte is reduced by continuous N(2) flow to less than 0.2% compared to that of a fresh electrolyte. This can be done while rotating the cell by 360 degrees about the surface normal. The electrode potential is accurately measured at the position of the crystal using a Luggin capillary and a standard reference electrode. We demonstrate the performance of our cell by in situ synchrotron x-ray diffraction measurements on ultrathin Co layers electrodeposited on Cu(001) in an aqueous H(2)SO(4)/CoSO(4) solution. (C) 1998 American Institute of Physics.
    Original languageEnglish
    JournalReview of Scientific Instruments
    Issue number4
    Pages (from-to)1840-1843
    Publication statusPublished - 1998

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