Abstract

Synchrotron-based soft-X-ray imaging and microspectroscopy with sub-micrometer spatial resolution are used to investigate the electrodeposition of Mn-Cu-ZnO, a prospective active material for supercapacitors. This study is focused on the correlation of the local current density and the spatial distribution of the composition and chemical-state in electrodeposits grown potentiostatically at -0.7V (vs a saturated calomel electrode), as well as the optimal potential for the achievement of high specific capacitance and cycling stability. The morphology, elemental distribution, and the local chemical state of both the electrode deposits and the grown dendrite structures are followed by using X-ray imaging, X-ray fluorescence mapping, and X-ray absorption microspectroscopy. For transmission soft-X-ray measurements, a thin-layer Hull-type microcell is developed and fabricated by using electron-beam lithography. The information obtained for the spatial distribution of the deposit is complemented by using electrochemical measurements and numerical simulations.

Autore Pugliese

• Bozzini Benedetto , Mele Claudio , Sgura Ivonne

Tutti gli autori

• Bozzini B. , Gianoncelli A. , Mele C. , Sgura I. , Kiskinova M.

Titolo volume/Rivista

CHEMELECTROCHEM

Anno di pubblicazione

2014

ISSN

2196-0216

ISBN

Non Disponibile

Numero di citazioni Wos

1

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

1

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile