Application of multi-walled carbon nanotubes functionalized with hemin for oxygen detection in neutral solution

Ye, Jianshan; Wen, Ying; Zhang, Wei De; Cui, Hui‐Fang; Gan, L. M.; Xu, Guo Qin; Sheu, Fwu‐Shan

doi:10.1016/j.jelechem.2003.09.007

Cited by 111 publications

(48 citation statements)

References 60 publications

(80 reference statements)

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“…These values were lower than those for other hemin-modified electrodes such as hemin immobilized on MCWT [38] or on glassy carbon modified with PAMAM and MWCNT [39], probably due to the different orientation of hemin molecules on the electrode surface which influences the charge transfer rate [7]. Due to the same reason, the electrode reaction was faster when Hm was immobilized with Dim than with Den layer.…”

Section: Cyclic Voltammetrymentioning

confidence: 82%

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Deac

Morar

Turdean

et al. 2016

J Solid State Electrochem

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In an attempt to increase the stability and efficiency of hemin-modified electrodes, the present work reports the preparation of a new modified glassy carbon electrode obtained by immobilization of hemin (Hm) on the electrode surface together with a new N-substituted melamine (2,4,6-triamino-1,3,5-triazine) based G-2 dendrimer comprising paminophenol as peripheral unit (Den) or with one of its analogues, a melamine G-0 dimer (Dim). Basic structural features, able to determine intimate relationships between Hm and Dim (or Den) at room temperature in solid state, were evidenced with the use of vibrational analysis carried out by FT-IR. This method revealed contacts between Hm and Dim or Den respectively as H-bond interactions, proton-interchange, and π-π stacking interactions. The new modified electrodes were characterized by cyclic voltammetry and electrochemical impedance spectroscopy and tested for amperometric detection of H 2 O 2 . In this purpose, GC/Hm-Dim electrode exhibited better catalytic properties than GC/Hm-Den electrode, but lower stability.

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Section: Cyclic Voltammetrymentioning

confidence: 82%

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Deac

Morar

Turdean

et al. 2016

J Solid State Electrochem

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“…Hemin (iron(III) protoporphyrin(IX) chloride, molecular formula C 34 H 32 ClFeN 4 O 4 , see the inset to Figure 1(a)) is one of prominent derivatives of porphyrin and the active center of the heme-protein family, such as b-type cytochromes, peroxidase, myoglobin and hemoglobin [17]. This molecule can be adsorbed at various substrates, and acts as an electrochemical sensor to detect hydrogen peroxide and oxygen in the solution.…”

Section: Introductionmentioning

confidence: 99%

Study of pyrolyzed hemin/C as non-platinum cathodic catalyst for direct methanol fuel cells

et al. 2010

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Biological reduction of O-2 to H2O justifies a serious look at heme as a potential O-2 reduction reaction (ORR) catalyst for low temperature fuel cells. In this study, a novel non-platinum electrocatalyst for ORR was prepared through hemin, which is hydrochloride of heme, supported on Black Pearls 2000 carbon black (Hm-BP) pyrolyzed at 700-900 A degrees C in Ar atmosphere. The physical and electrocatalytic properties of as-prepared catalysts were characterized by TGA, XRD, XPS, TEM, rotating disk electrode (RDE) and rotating ring disk electrode (RRDE). It has found that the catalyst treated at 750 A degrees C (Hm-BP-750) exhibits the best property among the Hm-BP catalysts prepared. The onset potential of ORR on the Hm-BP-750 at 30 A degrees C was measured ca. 0.90 V (vs. RHE) in 0.1 M H2SO4, and mass current density was reached 15.3 mA mg(-1) at 0.75 V. It has revealed that O-2 could be reduced directly to water in a 4e process between 0.9 and 0.83V, and the yield of H2O2 was 0-18% in the potential range of 0.83-0.63 V. This methanol-tolerant catalyst also presents excellent stability in medium-term test of direct methanol fuel cell at 80 A degrees C.National Natural Science Foundation of China [20933004, 20833005, 20921120405

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“…Several electron transfer mediators have been used to shuttle electrons between oxygen and the electrode surface. Electrodes modified with bilirubin oxidase [5], palladium [6], iron 2,6-bis(imino)-pyridyl complexes [7], cobalt(II) porphyrin complexes [8], phenathrenequinone [9], hemin [10], Pt on a nafionbonded carbon electrode [11], ruthenium [12], polyoxometalates [13], phenanthroline [14] and phthalocyanines [15] have been used in the study of oxygen reduction. Among them, the porphyrins have acquired considerable interest due to their singular properties, including high thermal stability and catalytic efficiency for a great number of molecules.…”

Section: Introductionmentioning

confidence: 99%

Dissolved oxygen amperometric sensor based on layer-by-layer assembly using host–guest supramolecular interactions

Damos

Luz

Tanaka

et al. 2010

Analytica Chimica Acta

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Application of multi-walled carbon nanotubes functionalized with hemin for oxygen detection in neutral solution

Cited by 111 publications

References 60 publications

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Glassy carbon electrode modified with hemin and new melamine compounds for H2O2 amperometric detection

Study of pyrolyzed hemin/C as non-platinum cathodic catalyst for direct methanol fuel cells

Dissolved oxygen amperometric sensor based on layer-by-layer assembly using host–guest supramolecular interactions

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