Layer-by-layer assembly of poly( p -aminobenzene sulfonic acid)/quaternary amine functionalized carbon nanotube/ p -aminobenzene sulfonic acid composite film on glassy carbon electrode for the determination of ascorbic acid

Xi, Lingling; Zhang, Dan‐Wei; Wang, Fengli; Huang, Zhongping; Ni, Ting

doi:10.1016/j.jelechem.2016.01.015

Cited by 7 publications

(2 citation statements)

References 49 publications

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“…This unique process resulted in nanocomposites with very low electrical resistance (1–2 Ω) and good PF (155 μW/m K 2 ), which can be used to fabricate thermoelectric generators with low internal resistance. Layer-by-layer (LbL) assembly has been successfully used to prepare films from carbon nanotube solutions, − while the electrochemical polymerization of PEDOT can produce homogeneous films with high electrical conductivity. , In this case, MWCNT-based assemblies were deposited, and then PEDOT was soaked into the nanoporous thin film and polymerized in situ. These low-resistance films were incorporated into a unique cylindrical thermoelectric module, containing only p-type nanocomposite elements.…”

Section: Introductionmentioning

confidence: 99%

High Thermoelectric Power Factor Organic Thin Films through Combination of Nanotube Multilayer Assembly and Electrochemical Polymerization

Culebras

Cho²,

Krecker³

et al. 2017

ACS Appl. Mater. Interfaces

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In an effort to produce effective thermoelectric nanocomposites with multiwalled carbon nanotubes (MWCNT), layer-by-layer assembly was combined with electrochemical polymerization to create synergy that would produce a high power factor. Nanolayers of MWCNT stabilized with poly(diallyldimethylammonium chloride) or sodium deoxycholate were alternately deposited from water. Poly(3,4-ethylene dioxythiophene) [PEDOT] was then synthesized electrochemically by using this MWCNT-based multilayer thin film as the working electrode. Microscopic images show a homogeneous distribution of PEDOT around the MWCNT. The electrical resistance, conductivity (σ) and Seebeck coefficient (S) were measured before and after the PEDOT polymerization. A 30 bilayer MWCNT film (<1 μm thick) infused with PEDOT is shown to achieve a power factor (PF = Sσ) of 155 μW/m K, which is the highest value ever reported for a completely organic MWCNT-based material and competitive with lead telluride at room temperature. The ability of this MWCNT-PEDOT film to generate power was demonstrated with a cylindrical thermoelectric generator that produced 5.5 μW with a 30 K temperature differential. This unique nanocomposite, prepared from water with relatively inexpensive ingredients, should open up new opportunities to recycle waste heat in portable/wearable electronics and other applications where low weight and mechanical flexibility are needed.

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Section: Introductionmentioning

confidence: 99%

High Thermoelectric Power Factor Organic Thin Films through Combination of Nanotube Multilayer Assembly and Electrochemical Polymerization

Culebras

Cho²,

Krecker³

et al. 2017

ACS Appl. Mater. Interfaces

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“…3 Para amino benzene sulfonic acid (ABSA), when electropolymerized on to glassy carbon electrode (GCE) has been reported to show better sensing performance than bare GCE for various chemical species. [4][5][6][7][8] Our own group has reported the characterization of poly(ABSA) modified GCE (p(ABSA)/GCE) and its development as sensor for various classes of analytes. 9,10 In the present work, we demonstrate the competence of poly(ABSA) modified GCE (p(ABSA)/GCE) as a sensor for the simultaneous determination of guanine (Gu) and adenine (Ad) along with their metabolite uric acid (Ua).…”

mentioning

confidence: 99%

Poly(para amino benzene sulfonic acid) Modified Glassy Carbon Electrode for the Simultaneous as well as Individual Voltammetric Determination of Guanine, Adenine and Uric Acid

Jesny¹,

Kumar²

2018

J. Electrochem. Soc.

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The article details the development of a poly(para amino benzene sulfonic acid) modified glassy carbon electrode as a sensor for simultaneous determination of purine bases; guanine, adenine and uric acid. When 0.1 M NaOH was used as the supporting electrolyte the electro-oxidation of these analytes took place at well resolved electrode potentials which facilitated their simultaneous determination without any electrode fowling. The sensor response has been calibrated for both simultaneous and individual determination. Wide linear working concentration ranges and good detection limits were obtained for both. The selectivity of the sensor for simultaneous determination has been checked among these purine bases as well as in the presence of other possibly co-existing species. The sensor has been demonstrated to be efficient for determination of uric acid, guanine and adenine in acid denatured herring sperm DNA. The mechanistic and kinetic parameters such as charge transfer coefficient, number of electrons involved in the rate determining step, diffusion coefficient and heterogeneous rate constant for the electro-oxidation of these bases on the poly(para amino benzene sulfonic acid) modified glassy carbon electrode has also been determined.

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Unexpected Electrochemical Transformation of Aminobenzene Sulfonic Acid Isomers to Respective Surface‐Confined‐Redox Active Quinones Bypassing Polyaniline on a MWCNT Surface

Mayuri

Kumar

2017

ChemElectroChem

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Electrochemical oxidation of aniline and its derivatives, such as aminobenzene sulfonic acid (SA), on solid electrodes [Pt, glassy carbon (GCE), indium tin oxide (ITO), and Au] leads to the formation of conducting polyaniline (PANI) and its derivatives as the only products in aqueous solution. We report here, for the first time, the unique and unexpected electrochemical transformation of ortho‐, meta‐ and para‐SA into highly redox‐active, adsorption‐controlled quinone isomers [catechol (CA), resorcinol (Re), hydroquinone (HQ)], without any PANI‐like product formation on a multiwalled carbon nanotube (MWCNT)‐modified GCE (GCE/MWCNT@Q, where Q=quinone) within a restricted potential cycling window (−0.4 to 0.4 V versus Ag/AgCl) in a neutral pH solution. It is proposed that upon the potential cycling of a 2.1 wt% iron‐impurity‐containing MWCNT‐modified GCE with a millimolar concentration of SA isomers, benzene (after deamination and desulfonation of SA) and hydrogen peroxide (from the oxygen reduction reaction at −0.4 V vs. Ag/AgCl) are formed as intermediate species, which are then converted to quinones and quinone‐like products through the electro‐Fenton reaction (utilizing the iron impurity and H2O2). One of the reaction intermediates, benzene, was identified (Mw=77.8±0.5 g mol−1) by using an in situ electrochemical quartz crystal microbalance coupled cyclic voltammetric technique. By using GCE/MWCNT@HQ as a model system, efficient electrocatalytic oxidation and sensing of the reduced form of nicotinamide adenine dinucleotide (NADH) was successfully demonstrated.

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Layer-by-layer assembly of poly( p -aminobenzene sulfonic acid)/quaternary amine functionalized carbon nanotube/ p -aminobenzene sulfonic acid composite film on glassy carbon electrode for the determination of ascorbic acid

Cited by 7 publications

References 49 publications

High Thermoelectric Power Factor Organic Thin Films through Combination of Nanotube Multilayer Assembly and Electrochemical Polymerization

High Thermoelectric Power Factor Organic Thin Films through Combination of Nanotube Multilayer Assembly and Electrochemical Polymerization

Poly(para amino benzene sulfonic acid) Modified Glassy Carbon Electrode for the Simultaneous as well as Individual Voltammetric Determination of Guanine, Adenine and Uric Acid

Unexpected Electrochemical Transformation of Aminobenzene Sulfonic Acid Isomers to Respective Surface‐Confined‐Redox Active Quinones Bypassing Polyaniline on a MWCNT Surface

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