Probing the Electronic Structure of Prussian Blue and Analog Films by Photoemission and Electron Energy Loss Spectroscopies.

Autor: Martins JB; Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ,21941-909, Brazil.; X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, United States of America., Husmann S; Grupo de Química de Materiais, Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, PR, 81531-980, Brazil., da Veiga AG; Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ,21941-909, Brazil., Zarbin AJG; Grupo de Química de Materiais, Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, PR, 81531-980, Brazil., Rocco MLM; Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ,21941-909, Brazil.
Jazyk: angličtina
Zdroj: Chemphyschem : a European journal of chemical physics and physical chemistry [Chemphyschem] 2024 Feb 16; Vol. 25 (4), pp. e202300590. Date of Electronic Publication: 2024 Jan 16.
DOI: 10.1002/cphc.202300590
Abstrakt: X-ray photoelectron spectroscopy (XPS) and reflection electron energy loss spectroscopy (REELS) were employed to characterize the electronic properties of Prussian blue (PB) and its analogs when electrodeposited over metal-decorated carbon nanotubes (CNTs). Through an investigation of the influence of carbon nanotubes (CNTs) and preparation conditions on the electronic structure, valuable insights were obtained regarding their effects on electrochemical properties. XPS analysis enabled the probing of the chemical composition and oxidation states of the film materials, unveiling synthesis-driven variations in their electronic properties. REELS provided information on energy loss and electronic transitions, enabling further characterization of the changes in the electronic structure induced by different preparation methods. Such findings emphasize the importance of surface characterization to understand how the unique electronic properties of such materials can be harnessed to enhance their performance and functionality.
(© 2023 Wiley-VCH GmbH.)
Databáze: MEDLINE
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