Comprehensive Structural, Surface-Chemical and Electrochemical Characterization of Nickel-Based Metallic Foams

Resource type
Date created
2013-06-11
Authors/Contributors
Abstract
Nickel-based metallic foams are commonly used in electrochemical energy storage devices (rechargeable batteries) as both current collectors and active mass support. These materials attract attention as tunable electrode materials because they are available in a range of chemical compositions, pore structures, pore sizes, and densities. This contribution presents structural, chemical, and electrochemical characterization of Ni-based metallic foams. Several materials and surface science techniques (transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), focused ion beam (FIB), and X-ray photoelectron spectroscopy (XPS)) and electrochemical methods (cyclic voltammetry (CV)) are used to examine the micro-, meso-, and nanoscopic structural characteristics, surface morphology, and surface-chemical composition of these materials. XPS combined with Ar-ion etching is employed to analyze the surface and near-surface chemical composition of the foams. The specific and electrochemically active surface areas (As, Aecsa) are determined using CV. Though the foams exhibit structural robustness typical of bulk materials, they have large As, in the range of 200–600 cm2 g–1. In addition, they are dual-porosity materials and possess both macro- and mesopores.
Document
Published as
"Comprehensive Structural, Surface-Chemical and Electrochemical Characterization of Nickel-Based Metallic Foams," van Drunen, Julia; Kinkead, Brandy; Wang, Michael; Sourty, Erwan; Gates, Byron D.; Jerkiewicz, Gregory, ACS Appl. Mater. Interfaces, 2013, 5 (14), 6712-6722. DOI: 10.1021/am401606n.
Publication title
ACS Appl. Mater. Interfaces
Document title
Comprehensive Structural, Surface-Chemical and Electrochemical Characterization of Nickel-Based Metallic Foams
Date
2013
Volume
5
Issue
14
First page
6712
Last page
6722
Publisher DOI
10.1021/am401606n
Copyright statement
Copyright is held by the author(s).
Scholarly level
Peer reviewed?
Yes
Language
Member of collection
Attachment Size
am401606n.pdf 1.7 MB