Journal Article

PUBDB-2022-02717

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A combined rotating disk electrode - surface x-ray diffraction setup for surface structure characterization in electrocatalysis

Jacobse, L. (Corresponding author)DESY* ; Schuster, R.Extern* ; Pfrommer, J.Extern* ; Deng, X.Extern*DESY* ; Dolling, S.Extern*DESY* ; Weber, T.Extern* ; Gutowski, O.DESY* ; Dippel, A.-C.DESY* ; Brummel, O.Extern* ; Lykhach, Y.Extern* ; Over, H.Extern* ; Libuda, J.Extern* ; Vonk, V.XFEL.EU*DESY* ; Stierle, A.XFEL.EU*DESY*

2022
American Institute of Physics [S.l.]

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Please use a persistent id in citations: doi:10.1063/5.0087864  doi:10.3204/PUBDB-2022-02717

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 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 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.

Note: The following funding cannot be found in the database: We acknowledge financial support by the German Federal Ministry of Education and Research (BMBF projects 05K2016-HEXCHEM and 05K19WE1-CIXenergy). The authors acknowledge additional support by the Bavarian Ministry of Economic Affairs, Regional Development and Energy and the Deutsche Forschungsgemeinschaft (DFG) via the Collaborative Research Centre SFB 1452 (Catalysis at Liquid Interfaces , project 431791331), the Research Unit FOR 1878 (Functional Molecular Structures on Complex Oxide Surfaces, project 214951840) and further projects (431733372, 453560721)

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Contributing Institute(s):

1. Nanolab (FS-NL)
2. DOOR-User (DOOR ; HAS-User)
3. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20190341 (I-20190341) (I-20190341)
4. FS-Proposal: I-20200593 (I-20200593) (I-20200593)
5. DFG project 431791331 - SFB 1452: Katalyse an flüssigen Grenzflächen (CLINT) (431791331) (431791331)
6. DFG project 214951840 - FOR 1878: funCOS - Funktionale molekulare Strukturen auf komplexen Oxidoberflächen (214951840) (214951840)
7. DFG project 431733372 - Komplexe Modellkatalysatoren für die selektive Umwandlung erneuerbarer Brennstoffe (431733372) (431733372)
8. DFG project 453560721 - EMOCAT – Elektrifizierte Modellkatalyse: Ein wissensbasierter Zugang zu neuen oxid-stabilisierten Elektrokatalysatoren (453560721) (453560721)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)
2. DESY NanoLab: Electrochemistry Lab
3. DESY NanoLab: X-Ray Diffraction

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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