Prussian Blue/Multiwalled Carbon Nanotube Hybrids: Synthesis, Assembly and Electrochemical Behavior

Zhai, Junfeng; Zhai, Yueming; Wen, Dan; Dong, Shaojun

doi:10.1002/elan.200904680

Cited by 74 publications

(55 citation statements)

References 42 publications

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“…70,71 In fact, a splitting of the E g mode of anhydrous K 4 [Fe(CN) 6 ] occurs, compared to the hydrated complex, that correlates with the C≡N band profile observed in Figure 5. 29,68 To evaluate PB formation over the CNT film, the laser was focused directly onto the L/L interface where the above-mentioned signals are present. The position of the L/L interface can move under polarization as this alters the interfacial tension, and hence the curvature, of the meniscus.…”

Section: Resultsmentioning

confidence: 99%

“…In fact, CNT/HCM composites have been applied in sensors, membranes, electrochromic devices, batteries and catalysts, among others. [26][27][28][29][30] HCMs, however, usually present low chemical and electrochemical stability, which can be improved by CNTs in CNT/HCM composites. 31 The better the interaction between the materials, the higher their stability.…”

Section: Introductionmentioning

confidence: 99%

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Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid‑Liquid Interface

Husmann

Booth

Zarbin

et al. 2018

J. Braz. Chem. Soc.

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The iron complex hexacyanoferrate (Fe 4 [Fe(CN) 6 ] 3 ), known as Prussian Blue (PB), was electrodeposited over a free-standing carbon nanotube (CNT) film assembled at the interface between two immiscible liquids, water and 1,2-dichlorobenzene. Polarization of the interface achieved through a fixed potential or under potential variation enabled iron present inside CNTs to generate a stable CNT/PB composite. We report herein on the observation that the deposition of PB is dependent on both the pH and applied potential. It was found that aqueous phases containing K 3 [Fe(CN) 6 ] can decompose under an applied potential, while those containing K 4 [Fe(CN) 6 ] presented more stable behavior making it a suitable precursor for PB synthesis. The electrodeposition and modification of the interface was followed by in situ spectroelectrochemical Raman spectroscopy, which indicated that an increase in signal due to PB formation was acompanied by changes in the CNT bands due to modification of the CNT walls by decoration with PB, forming a composite structure. Keywords: liquid-liquid interface, Prussian Blue, carbon nanotubes, immiscible liquids IntroductionBiphasic liquid/liquid (L/L) systems have been used for a long time, either for the study of interfacial electron and ion transfer reactions or for the synthesis and assembly of micro and nano-sized materials.1,2 The interface between two immiscible liquids provides a defect-free environment suitable for controlled homogeneous particle deposition. Driven by the decrease in the L/L interfacial free energy, particles dispersed or synthesized in a biphasic system spontaneously migrate to the interface formed by the two liquids. [3][4][5] Due to the ease of formation and robust nature of L/L interfaces, they have been utilized in a wide range of different applications. The L/L system can be used simply as a means to assemble previously synthesized materials into organized arrays or thin films, such as carbon nanostructures or metal nanoparticles. 6,7 Alternatively, materials can be both synthesized and assembled by using the L/L interface as the region of contact between reactants located in the different phases. [8][9][10] As an alternative to spontaneous reactions occurring at the point of contact between the two phases, material deposition can also occur by electrochemical polarization of the interface. 11,12 In addition to standard synthetic parameters such as concentration, time or pH, the applied potential and polarization of the interface between the two immiscible electrolyte solutions (ITIES) governs the rate of ion and electron transfer between the phases, allowing significant control over synthetic procedures. 1,2,13,14 By combining these different approaches to utilize the L/L interface, composite structures can be prepared using one material as the support and/or nucleation site for the other. 15,16 Previously, it has been observed that particle or polymer formation was possible, under stirring, on the surface of carbon nanostructures present in a L/L sy...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid‑Liquid Interface

Husmann

Booth

Zarbin

et al. 2018

J. Braz. Chem. Soc.

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“…Prussian blue deposited multi-walled carbon nanotubes hybrids (PB/MWNTs) were synthesized according to the literature (Zhai et al, 2009). 0.25% CS solution was prepared by dissolving 0.25 g CS in 100 mL 1.0% acetic acid with sonication for 1 h. Before electrode modification, GCE was successively polished with 0.3 and 0.05 m alumina slurry, followed by rinsing thoroughly with deionized water.…”

Section: Fabrication Of the Composite Film Modified Gcementioning

confidence: 99%

“…Prussian blue deposited carbon nanotubes hybrids, combining the efficient facilitation effect of CNTs on electron transfer (Tang et al, 2004;Guan et al, 2005;Huang et al, 2006;Tsai and Tsai, 2009) with the effective low-potential electron transfer mediation effect of Prussian blue toward the reduction of H 2 O 2 (Ahmadalinezhad et al, 2009;Chiu et al, 2009;Wang et al, 2009;Li et al, 2010), are attracting particular interest in the area of electrochemistry (Zhai et al, 2009;Zhang et al, 2009). To the best of our knowledge, no attempt has been made to fabricate biosensors with 0956-5663/$ -see front matter © 2011 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Glucose biosensor based on covalent immobilization of enzyme in sol–gel composite film combined with Prussian blue/carbon nanotubes hybrid

Yue

Dai

2011

Biosensors and Bioelectronics

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“…In order to solve these problems, much endeavor has been devoted to searching for novel supports that can improve the sensor's stability and activity. A general solution to the problem is the utilization of CNTs/PB composites due to the enhanced stability of the composite material [19][20][21]. Nevertheless, when constructing CNTs/PB composites based electrochemical sensors, multistep processes are usually required to prepare in advance, such as purifying CNTs or presynthesizing PB nanoparticles [22].…”

Section: Introductionmentioning

confidence: 99%

Functionalization of graphene with Prussian blue and its application for amperometric sensing of H2O2

Shi

et al. 2012

J Solid State Electrochem

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As a two-dimensional carbon material with high surface area and conductivity, graphene shows great promise for designing composite nanomaterials to achieve highperformance electrochemical devices. In this work, we prepared graphene-based nanocomposite material by electrochemically depositing Prussian blue (PB) nanoparticles on the surface of graphene. Fourier transform infrared spectra, SEM, and cyclic voltammetry were used to characterize the successful immobilization of PB. Compared with PB films and graphene sheets, the PB-graphene composite films showed the largest current response to the reduction of H 2 O 2 , probably due to the synergistic effects between graphene sheets and PB nanoparticles. Therefore, a fast and highly sensitive amperometric sensor for H 2 O 2 was obtained with a detection sensitivity of 1.6 μA μM −1 H 2 O 2 per cm 2 and a linear response range of 50∼5,000 μM. The detection limit of H 2 O 2 was 20 nM at a signal-to-noise ratio of 3. These obtained results are much better than those reported for carbon nanotubes-based amperometric sensors.

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Prussian Blue/Multiwalled Carbon Nanotube Hybrids: Synthesis, Assembly and Electrochemical Behavior

Cited by 74 publications

References 42 publications

Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid‑Liquid Interface

Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid‑Liquid Interface

Glucose biosensor based on covalent immobilization of enzyme in sol–gel composite film combined with Prussian blue/carbon nanotubes hybrid

Functionalization of graphene with Prussian blue and its application for amperometric sensing of H2O2

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