Superstable Advanced Hydrogen Peroxide Transducer Based on Transition Metal Hexacyanoferrates

Abstract

We report on a superstable hydrogen peroxide (H(2)O(2)) transducer made by sequential deposition of the iron- and nickel-hexacyanoferrate (NiHCF) layers. Both chemical and mechanical stability of the latter, as well as similarity of its structure to Prussian Blue (PB) provide a substantial stabilization of the most advantageous H(2)O(2) transducer. The electrochemically deposited five bilayers of PB-NiHCF exhibit a complete stability under the continuous wall-jet flow of 1 mM of H(2)O(2) during more than 2 h, maintaining current at a level of 0.2 mA cm(-2), whereas common Prussian Blue loses half of its response within the first 20-25 min. Even being deposited in the open circuit regime on screen-printed electrodes, PB-NiHCF bilayers dramatically improve tolerance of the resulting transducer to alkaline solutions and iron ligands. Despite their 2-2.5 times decreased sensitivity (compared to common Prussian Blue), the sequentially deposited bilayers of PB-NiHCF provide a similar dynamic range of the transducer due to the decreased noise level.

Communication—Accessing Stability of Oxidase-Based Biosensors via Stabilizing the Advanced H2O2Transducer

“…24 We already reported on the open circuit interfacial deposition of Prussian Blue 22 allowing to avoid electrochemical techniques, highly required for cost-effective mass production. In contrast to, 22 we've chosen hydrogen peroxide as a reductant for ferric-ferrocyanide ([FeFe(CN) 6 ]) complex 8 to synthesize Prussian Blue film with the highest catalytic activity.…”

Electrocatalytic reduction of hydrogen peroxide performed by poly(pyrrole) / Prussian blue composites

“…The hydrogen peroxide is the product of many enzymatic reactions and also the raw material in several industrial processes [18], therefore the accurate and selective determination of hydrogen peroxide draws the attention of many scientists and engineers because of its numerous practical applications. The electrocatalysis performed by PB electrodes is shown in Figure 4.…”

Synthesis of Pd–Ni/C bimetallic materials and their application in non-enzymatic hydrogen peroxide detection

“…Hydrogen peroxide (H 2 O 2 ) is a typical peroxide, commonly found in nature, which is widely used in food production, chemical synthesis, fuel cells, and pharmaceutical analysis [1][2][3]. In addition, H 2 O 2 is the major predictor of oxidative stress, and at the same time, it is very reactive and capable of forming detrimental hydroxyl radicals [4][5][6].…”