Sensing characteristics of hydrogen peroxide sensor using carbon-based electrode loaded with perovskite-type oxide

Shimizu, Youichi; Komatsu, Hironori; Michishita, Satoko; Miura, Norio; Yamazo, Noboru

doi:10.1016/s0925-4005(97)80021-4

Cited by 44 publications

(24 citation statements)

References 10 publications

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“…It should be noted, however, that for a series 2 e − +2 e − pathway the probability of escape of H 2 O 2 strongly depends on the catalyst loading; the higher the loading, the lower the probability of H 2 O 2 escape from the catalytic layer 7–9. Also important for the understanding of the mechanism of the ORR is the significant activity of Co and especially Mn perovskite oxides in hydrogen peroxide oxidation/reduction reactions (HPOR/HPRR) 10–12. Thus, in this work to quantify the production of HO 2 − during the ORR and to conclude on the predominant direct versus series ORR pathway, the rotating ring‐disk electrode (RRDE) method was applied.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxygen Reduction Reaction on Perovskite Oxides: Series versus Direct Pathway

et al. 2014

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The mechanism of the oxygen reduction reaction (ORR) on LaCoO(3) and La(0.8)Sr(0.2)MnO(3) perovskite oxides is studied in 1 M NaOH by using the rotating ring disc electrode (RRDE) method. By combining experimental studies with kinetic modeling, it was demonstrated that on perovskite, as well as on perovskite/carbon electrodes, the ORR follows a series pathway through the intermediate formation of hydrogen peroxide. The escape of this intermediate from the electrode strongly depends on: 1) The loading of perovskite; high loadings lead to an overall 4 e(-) oxygen reduction due to efficient hydrogen peroxide re-adsorption on the active sites and its further reduction. 2) The addition of carbon to the catalytic layer, which affects both the utilization of the perovskite surface and the production of hydrogen peroxide. 3) The type of oxide; La(0.8)Sr(0.2)MnO(3) displays higher (compared to LaCoO(3)) activity in the reduction of oxygen to hydrogen peroxide and in the reduction/oxidation of the latter.

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Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxygen Reduction Reaction on Perovskite Oxides: Series versus Direct Pathway

et al. 2014

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“…It may also be useful to investigate nonredox materials which are sensitive for hydrogen peroxide in the sense that hydrogen peroxide will change their work function (electrochemical potential) and thus the of the MOSFET is modulated by an exchange reaction with hydrogen peroxide. From the literature [15], it is known that the perovskite oxide (A A' BO where A is lanthanide element, A' is alkaline metal and B is first row transition metal) can be used as material for a hydrogen peroxide sensor due to its large surface area and the presence of a high oxygen vacancy concentration. These oxygen vacancies can be seen as a dopant in the perovskite oxide.…”

Section: Discussionmentioning

confidence: 99%

Electroactive gate materials for a hydrogen peroxide sensitive /sup E/MOSFET

2002

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Abstract-This paper describes the detection principle of a hydrogen peroxide sensor based on the electrolyte metal oxide semiconductor field effect transistor ( E MOSFET) and possibilities of using different types of redox materials as the gate material for the sensor with respect to the sensitivity and detection limit. After discussing the fundamentals of hydrogen peroxide detection and a short description of the E MOSFET characteristics in terms of its threshold voltage, the basic measuring principle of hydrogen peroxide using the E MOSFET is shown. The E MOSFET with electro-active gate materials such as iridium oxide, potassium ferric ferrocyanide, and Os polyvinylpyridine containing peroxidase, have been studied. These different materials are compared with each other with respect to their sensitivity, detection limit, and stability. The sensitivity of the sensors is improved by applying an external current between the gate and the solution.Index Terms-E MOSFET, hydrogen peroxide sensor, redox material.

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“…Perovskite materials have several technological applications including in their use as high-temperature furnace electrodes, 1 as electrode material in intermediate temperature solid oxide fuel cells (IT-SOFC), 2 as electrolytes in protonconducting solid oxide fuel cells (PC-SOFC), 3 as catalysts for the treatment of automobile exhaust 4 and as sensors. 5 They offer a wide range of phenomena to be studied such as ferroelectricity, superconductivity, high temperature ionic conductivity, a variety of magnetic ordering, 6 etc. and also provide excellent proton transport properties in addition to being stable and active in a strongly acidic environment.…”

Section: Introductionmentioning

confidence: 99%

“…Thus for example, Mn-doped La (Sr) CrO 3−δ 14 has been used successfully as anode material for hydrogen oxidation in SOFC configuration. Calcium doped LaMO 3 (M = Cr, Fe, Co, Ni) 5 have been used as anodic material for amperometric sensing of hydrogen peroxide, although the best results were obtained by using La 0.6 Ca 0.4 MnO 3 . In another work, La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF6428) has been used as anode material 2 for methane oxidation for working of an ITSOFC.…”

Section: Introductionmentioning

confidence: 99%

Borohydride electro-oxidation by Ag-doped lanthanum chromites

2014

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The electrocatalytic activity of Ag-doped lanthanum chromites electrode materials viz., LaCr 0.4 Ag 0.6 O 3 and LaCr 0.7 Ag 0.3 O 3 prepared by decomposing the precursor complex is studied. Pure LaCrO 3 is synthesized by combustion route using oxalic acid as a fuel. The decomposition behaviour of the assynthesized powder obtained in the latter method is characterized by TGA-DTA and XRD. Both the precursor complex and the as-synthesized powder are calcined at 900 • C for 7 and 10 h, respectively. XRD of the final product after calcinations indicated the formation of perovskite phase with minor amounts of impurity phases of component oxides in the Ag-doped lanthanum chromites and pure perovskite phase in the undoped one. The surface morphology of the perovskites is studied by SEM. The electrocatalytic activity of the perovskite powders for borohydride oxidation is studied by using cyclic voltammetry (CV) at a catalyst loading of 0.7 mgcm −2 for both Ag-doped and undoped LaCrO 3 coated on glassy carbon substrate. Calibration plots are obtained by plotting the anodic peak current versus concentration of borohydride in the range of 20-100 mM. The sensitivities of the three perovskites towards borohydride oxidation indicated that LaCr 0.4 Ag 0.6 O 3 is the best among all the perovskites studied giving a value of 1.395 µA/mM.

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Sensing characteristics of hydrogen peroxide sensor using carbon-based electrode loaded with perovskite-type oxide

Cited by 44 publications

References 10 publications

Electrocatalytic Oxygen Reduction Reaction on Perovskite Oxides: Series versus Direct Pathway

Electrocatalytic Oxygen Reduction Reaction on Perovskite Oxides: Series versus Direct Pathway

Electroactive gate materials for a hydrogen peroxide sensitive /sup E/MOSFET

Borohydride electro-oxidation by Ag-doped lanthanum chromites

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