Novel, large area scalable polycrystalline Zn1-xCoxO films RF sputtered from a single mixed target for electrochemical water oxidation

Autor: Wolfram Calvet, Matthias Driess, Th. Schedel-Niedrig, C. Goebel, Iver Lauermann, Anahita Azarpira, Sören Selve, Johannes Pfrommer, Alexander Steigert, Michael Lublow, S. Mikhailov, Reiner Klenk
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Hydrogen Energy. 45:9380-9385
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2020.01.216
Popis: The compound semiconductor Zn1-xCoxO (x = 0.42; ZnO:Co) has recently gained interest as a highly active electrocatalyst material for water oxidation (WOCs). We report on the significant structural and electronic transformations under anodic oxygen evolution reaction conditions of a novel, large area scalable sputtered ZnO:Co electrocatalyst. ZnO:Co sputtered films showed the transition of the polycrystalline ZnO:Co electrocatalyst material to a partially amorphous nanocomposite (ZnO:Co/Co(OH)2/CoOOH). A high reactivity of the electrocatalyst material compensates effectively the low specific surface area of sputtered electrocatalyst thin films. The aim of this work is to examine the polycystral morphology of sputtered electrocatalyst thin film material, which can be also produced industrially on large areas and has a high WOC performance.
Databáze: OpenAIRE
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