A combined rotating disk electrode-surface x-ray diffraction setup for surface structure characterization in electrocatalysis

Jacobse L, Schuster R, Pfrommer J, Deng X, Dolling S, Weber T, Gutowski O, Dippel AC, Brummel O, Lykhach Y, Over H, Libuda J, Vonk V, Stierle A (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Review of Scientific Instruments AIP Publishing

Book Volume: 93

Article Number: 065111

Journal Issue: 6

DOI: 10.1063/5.0087864

Abstract

Characterizing electrode surface structures under operando conditions is essential for fully understanding structure-activity relationships in electrocatalysis. Here, we combine in a single experiment high-energy surface x-ray diffraction as a characterizing technique with a rotating disk electrode to provide steady state kinetics under electrocatalytic conditions. Using Pt(111) and Pt(100) model electrodes, we show that full crystal truncation rod measurements are readily possible up to rotation rates of 1200 rpm. Furthermore, we discuss possibilities for both potentiostatic as well as potentiodynamic measurements, demonstrating the versatility of this technique. These different modes of operation, combined with the relatively simple experimental setup, make the combined rotating disk electrode-surface x-ray diffraction experiment a powerful technique for studying surface structures under operando electrocatalytic conditions.

Authors with CRIS profile

Ralf Schuster Lehrstuhl für Katalytische Grenzflächenforschung Olaf Brummel Lehrstuhl für Katalytische Grenzflächenforschung Yaroslava Lykhach Lehrstuhl für Katalytische Grenzflächenforschung Jörg Libuda Lehrstuhl für Katalytische Grenzflächenforschung

Involved external institutions

Deutsches Elektronen-Synchrotron DESY DE Germany (DE) Universität Hamburg (UHH) DE Germany (DE) Justus-Liebig-Universität Gießen DE Germany (DE)

How to cite

APA:

Jacobse, L., Schuster, R., Pfrommer, J., Deng, X., Dolling, S., Weber, T.,... Stierle, A. (2022). A combined rotating disk electrode-surface x-ray diffraction setup for surface structure characterization in electrocatalysis. Review of Scientific Instruments, 93(6). https://dx.doi.org/10.1063/5.0087864

MLA:

Jacobse, Leon, et al. "A combined rotating disk electrode-surface x-ray diffraction setup for surface structure characterization in electrocatalysis." Review of Scientific Instruments 93.6 (2022).

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