Electrocatalytic Performances of Pure and Mixed Hexacyanoferrates of Cu and Pd for the Reduction of Hydrogen Peroxide

Guadagnini, Lorella; Giorgetti, Marco; Tarterini, Fabrizio; Tonelli, Domenica

doi:10.1002/elan.200900569

Cited by 16 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…51 Thus, the chemistry of the solution should be considered before utilising PB films in sensing applications. However, a wide variety of other HCF films have also been developed to improve the stability and activity of PB films, including nickel, 48,49 copper, 50 copper-palladium, 53 coppercobalt 54 and ruthenium oxide 51,52 hexacyanoferrate films.…”

Section: Analytical Areas Of Interest Environmental Sensingmentioning

confidence: 99%

Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications

Plowman

Bhargava

O’Mullane

2011

Analyst

View full text Add to dashboard Cite

The use of electrodeposited metal-based nanostructures for electroanalytical applications has recently received widespread attention. There are several approaches to creating nanostructured materials through electrochemical routes that include facile electrodeposition at either untreated or modified electrodes, or through the use of physical or chemical templating methods. This allows the shape, size and composition of the nanomaterial to be readily tuned for the application of interest. The use of such materials is particularly suited to electroanalytical applications. In this mini-review an overview of recently developed nanostructured materials developed through electrochemical routes is presented as well as their electroanalytical applications in areas of biological and environmental importance.

show abstract

Section: Analytical Areas Of Interest Environmental Sensingmentioning

confidence: 99%

Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications

Plowman

Bhargava

O’Mullane

2011

Analyst

View full text Add to dashboard Cite

show abstract

“…The different reported strategies to limit this phenomenon are based on the conditions of deposition of PB, the substrate used for PB deposition, or the use of modified PB materials based, for example, on transition metal hexacyanoferrates …”

Section: Introductionmentioning

confidence: 99%

Prussian Blue Degradation during Hydrogen Peroxide Reduction: A Scanning Electrochemical Microscopy Study on the Role of the Hydroxide Ion and Hydroxyl Radical

et al. 2016

View full text Add to dashboard Cite

The degradation of Prussian blue (PB) during H2O2 reduction is investigated by scanning electrochemical microscopy (SECM). Coupling SECM with optical microscopy allows quantitative assessment in situ of the effect of HO− on the dissolution of PB in lithographic experiments. The local production of HO− in the vicinity of PB is an easy way to pattern a PB layer; Such PB dissolution during H2O2 reduction leads to the release of soluble ferrocyanide and Fe2+. In the presence of H2O2, the latter initiate the Fenton reaction and the generation of highly reactive hydroxyl radicals HO.. This is revealed by the degradation of an organic layer immobilized on an ultramicroelectrode held in the vicinity of a PB layer during H2O2 reduction. The formation of such reactive species is of great importance to further understand the possible origin of the activity loss of sensors, batteries, and photovoltaic cells when composite materials based on PB or on its derivatives are used as catalysts for H2O2 or O2 reduction.

show abstract

“…Our group described a new experimental procedure, involving the insertion of Cu 2+ ions into previously deposited CuHCF films, which leads to a Cu 2+ -loaded CuHCF displaying an increased response sensitivity, with respect to the pristine electrode. 17,18 The aim of this work is to characterize, by X-ray Absorption Spectroscopy (XAS), the structure of CuHCF films electrodeposited under different conditions, in order to establish structure-properties relationships. Details about the local structure of copper hexacyanoferrate as well as about the oxidation state of copper during the intercalation process can be gained by XAS.…”

Section: Introductionmentioning

confidence: 99%

Structural characterization of electrodeposited copper hexacyanoferrate films by using a spectroscopic multi-technique approach

Giorgetti

Guadagnini

Tonelli

et al. 2012

Phys. Chem. Chem. Phys.

Self Cite

View full text Add to dashboard Cite

A deep structural investigation predominantly by X-ray spectroscopic techniques is conducted on films of copper hexacyanoferrate (CuHCF) deposited under different conditions, aimed at establishing structure-properties relationships. We show that the potentiodynamic electrosynthesis of CuHCF on carbon-based surfaces produces a highly disordered material, with a variable amount of Prussian Blue (PB). The subsequent Cu(2+) intercalation induces the partial conversion of PB into CuHCF, which explains the improved electrocatalytic properties after the intercalation process. Both Cu and Fe K-edge data have been recorded. For the sample with the lower amount of PB, we could perform a multiple edge data analysis to determine the local atomic environment around both metal centres using the same set of structural parameters. The presence of high multiplicity Cu-N-C-Fe linear chains has allowed us to determine accurately the local environment of Fe while fitting the Cu K-edge data only. Using this approach we have retrieved structural information around Fe for those samples in which the concomitant presence of PB would have made impossible the analysis of the Fe K-edge. The Fe-C, C-N and Cu-N bond distances have been found in agreement with those of the bulk structures, but higher values of [Fe(CN)(6)] vacancies for the building blocks have been evidenced, reaching a value of ~45% in one sample. XANES, Raman and SEM data agree with the model proposed for each studied electrode.

show abstract

Electrocatalytic Performances of Pure and Mixed Hexacyanoferrates of Cu and Pd for the Reduction of Hydrogen Peroxide

Cited by 16 publications

References 39 publications

Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications

Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications

Prussian Blue Degradation during Hydrogen Peroxide Reduction: A Scanning Electrochemical Microscopy Study on the Role of the Hydroxide Ion and Hydroxyl Radical

Structural characterization of electrodeposited copper hexacyanoferrate films by using a spectroscopic multi-technique approach

Contact Info

Product

Resources

About