Carbon Nanotubes as Suitable Electrochemical Platforms for Metalloprotein Sensors and Genosensors

Pacios, Mercè; Martin-Fernandez, Iñigo; Sarria-Villa, Rodrigo Andrés; Godignon, P.; Valle, Manel del; Bartrolı́, Jordi; Esplandiu, M.J.

doi:10.5772/10594

Cited by 7 publications

(9 citation statements)

References 52 publications

(73 reference statements)

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“…Similar results on transitions from electron transfer kinetics to diffusion control can be found in the literature for CNTs of varying length [41,44]. σ for L are ≤ 0.1 μm.…”

supporting

confidence: 86%

“…Best fits (black curve in Figure 13) are achieved by employing the equivalent circuit with corresponding fitting parameters listed in Table 5. [44][45][46] Thus, diffusion of charges inside porous Fe 2 O 3 electrodes is reflected in Nyquist plots. This model, also called Randles circuit, [43] describes mixed control systems and differs somewhat from the one created for planar substrates.…”

Section: Bulk Electrolysis Of Water At Nanostructured Fe 2 O 3 Electrmentioning

confidence: 99%

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Electrochemical Water Oxidation at Iron(III) Oxide Electrodes

Haschke¹

2015

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translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on micro lms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a speci c statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made.Printed on acid-free paper Springer Spektrum is a brand of Springer Fachmedien Wiesbaden Springer Fachmedien Wiesbaden is part of Springer Science+Business Media (www.springer.com) Foreword V ForewordSaving the planet has become a popular topic among chemistry students and faculty alike. Individual steps of the water splitting reaction have been extensively studied at the interfaces of carbon-based nanostructures, notorious for corroding fast, and of noble metal particles, the cost of which is redhibitory for large-scale applications. In this context, SandraHaschke's materials choice appears all the more consequent and bold: her Master's thesis is dedicated to iron(III) oxide, 'rust', as a platform for electrochemical water oxidation, the kinetic bottleneck of the overall water splitting.

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“…Similar results on transitions from electron transfer kinetics to diffusion control can be found in the literature for CNTs of varying length [41,44]. σ for L are ≤ 0.1 μm.…”

supporting

confidence: 86%

Section: Bulk Electrolysis Of Water At Nanostructured Fe 2 O 3 Electrmentioning

confidence: 99%

Electrochemical Water Oxidation at Iron(III) Oxide Electrodes

Haschke¹

2015

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“…It is widely known as diffusion limited part and reflected Warburg resistance (W) as the diffusion of Li + ions in the solid. C was the capacitance of electrical double layer at the interface between the electrolyte and the electrode material [32,33]. Figure 5f represented the Nyquist plots of the nanocomposite freestanding anodes with an equivalent circuit model.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Reduced graphene oxide supported tin oxide-boron oxide flexible paper anodesfor Li-ion batteries

Köse¹,

Dombaycıoğlu²,

Akbulut³

et al. 2019

Turk J Chem

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Freestanding tin oxide-boron oxide/reduced graphene oxide (SnO 2 -B 2 O 3 /rGO) nanocomposite anode was produced for Li-ion cells. This binder-free flexible paper anode structure was fabricated by combining SnO 2 -B 2 O 3 composite and graphene oxide which were synthesized through the sol-gel method and Hummers' method, respectively.Field emission gun scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive X-ray spectrometer, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffraction were utilized to characterize anode materials. The Williamson-Hall (W-H) analysis was applied using XRD data to determine crystal size and strain of the lattice. Electrochemical tests, cyclic voltammetry, and electrochemical impedance spectroscopy measurements were performed to determine electrochemical properties of the anodes. The results indicated that the anode formed with SnO 2 -B 2 O 3 particles anchored on the rGO layers provided higher discharge capacity (838 mAh g −1 ) than that of SnO 2 /rGO (395 mAh g −1 ) after 100 cycles. The electron-deficient nature of boron supplied an effective increase in electrochemical energy storage performance.

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“…The development, properties (good electrical conductivity, nanometer size, high aspect ratio and structure, electrochemical stability, high specific area and surface chemistry) and applications of CNTs, mainly in biosensors construction, were deeply discussed recently [41]. Both its high specific area, which allows the analyte to be accumulated on the surface, and the capability of increasing e.c.t.…”

Section: Chemical Nature Of the Working Electrode Surface Preparatiomentioning

confidence: 99%

“…The electrochemical behavior of graphitic materials is in great part defined by edge defects and oxygen functionalities at the surface, and the properties of the CNTs are similar to the high oriented pyrolytic graphite (HOPG). Details of CNT growth, working electrode preparation, surface modification and its application to construct specific enzymatic biosensors and genosensors were described [41]. In general, the CNT electrodes are subjected to electrochemical treatments based on three different electrolytes: 0.1 mol L -1 HNO 3 , 10 s at 1 V; 0.1 mol L -1 KCl, 60 s at 1.75 V and 1 mol L -1 NaOH, 60 s at 1 V / Ag|AgCl| KCl; the last one seems to be the best.…”

Section: Chemical Nature Of the Working Electrode Surface Preparatiomentioning

confidence: 99%