Carbon dioxide sensing with sulfonated polyaniline

Doan, Tin Chanh Duc; Ramaneti, R.; Baggerman, Jacob; Bent, Julian; Marcelis, Antonius T. M.; Tong, Hien D.; Rijn, C.J.M. van

doi:10.1016/j.snb.2012.03.065

Cited by 34 publications

(25 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since then, electron conductive polymer‐based sensors have attracted rapidly growing interest . Particularly, the polymers with amino groups have been reported as promising candidates for CO 2 sensing, but in practice they suffer from poisoning with carbamates and therefore failed to fill the gap in the CO 2 gas sensor sector . As a consequence, sensing of inert CO 2 gas is still performed with infrared spectroscopy, owing to trade‐offs between the technological and economical factors, and having limited portability.…”

Section: Introductionmentioning

confidence: 99%

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature

Willa

Yuan

Niederberger

et al. 2015

Adv Funct Materials

View full text Add to dashboard Cite

1wileyonlinelibrary.com oxidizing or reducing gases while operating at room temperature (RT). [16][17][18] Since then, electron conductive polymer-based sensors have attracted rapidly growing interest. [ 19 ] Particularly, the polymers with amino groups have been reported as promising candidates for CO 2 sensing, but in practice they suffer from poisoning with carbamates and therefore failed to fi ll the gap in the CO 2 gas sensor sector. [ 20,21 ] As a consequence, sensing of inert CO 2 gas is still performed with infrared spectroscopy, owing to trade-offs between the technological and economical factors, and having limited portability. Recently, poly(ionic liquid)s (PILs), a unique type of functional polyelectrolytes composed of ionic liquid repeating units chosen from structural diversity of the cation/anion-repertoire of ionic liquid chemistry, have been synthesized. [22][23][24] Their physical properties can be easily and broadly adjusted by the choice of the anion-cation pair. For example, structurally well-designed PILs are capable of reversible CO 2 capture and are showing high interfacial activity to bind various surfaces of metals, carbons, and to ionically interact with charged species via electrostatic repulsion or complexation. [25][26][27][28] Others demonstrated the ability of resistive CO 2 sensing with carbon nanotubes (CNTs) wrapped with poly[1-(p-vinylbenzyl)-3-methyl-imidazolium tetrafl uoroborate], P[VBTMA] [BF 4 ]. [ 29 ] They show a high sensitivity to low concentrations of CO 2 in oxygen-free atmospheres, but the response saturates already at 50 ppm, which is much lower than the normal CO 2 concentration level in fresh air (250 ppm) and thus lacks of practical application. Therefore, transforming the CO 2 sorption capacity of PILs into a chemoresistive sensor operating in real conditions, i.e., 21 vol% of oxygen and 50% relative humidity (rh), in the presence of 400 ppm [ 30 ] of CO 2 at RT requires a new structural model and additionally an understanding of the intrinsic interaction between organic and inorganic building blocks and their impact on the overall properties of such composites. Among different candidates, poly [( p -vinylbenzyl nanoparticles-both of which are intrinsically insulating materials-are utilized as building blocks, taking full advantage of the electrostatic interaction at their interface to boost the overall conductivity of composites at room temperature. To rationalize this unique behavior, the charge transport mechanism is studied using impedance spectroscopy. It is found fi nd that, for the composites with La 2 O 2 CO 3 content of 60-80 wt%, the interfacial effect becomes dominant and leads to the formation of conduction channels with increased mobility of [PF 6 ] − anions. These composites show further increase of the conductivity when exposed to pulses of CO 2 between 150 and 2400 ppm at room temperature in a relative humidity of 50%. This work therefore provides a simple strategy to achieve an enhancement of the electrical properties required for the utilizat...

show abstract

Section: Introductionmentioning

confidence: 99%

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature

Willa

Yuan

Niederberger

et al. 2015

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…where σ is the dc conductivity as a function of the thermodynamic temperature T ; ν , α and N ( E ) represent the hopping frequency, inverse rate of the fall of the wave function and the density of states (DOS) at the Fermi level 5 , respectively; and e , k and λ (≈18.1) denote the electronic charge, Boltzmann’s constant and a dimensionless constant, respectively. While polyaniline has been widely used in nanoelectronics 6 , nanosensors 7 , nanomaterials (e.g., nanowires 8 and nanofibres 9 ), its applications are limited by a number of issues, such as poor solubility in most available organic solvents 10 and weak chemical reactivity of protonic acid doping, which can only occur in a relatively strongly acidic environment (pH < 4.0) 11 . Recent studies 8 11 12 13 have shown that the introduction of suitable substituents, such as sulfonic acid (-SO 3 Na or -SO 3 K) 8 11 , boronic acid (-BO 2 H 2 ) 12 , and carboxylic (-COONa) 13 groups, at the phenyl rings or nitrogen sites of polyaniline is the simplest and most cost-effective approach for addressing these issues.…”

mentioning

confidence: 99%

First-principles study of the effect of functional groups on polyaniline backbone

Chen

Jiang

Liang

et al. 2015

Sci Rep

View full text Add to dashboard Cite

We present a first-principles density functional theory study focused on how the chemical and electronic properties of polyaniline are adjusted by introducing suitable substituents on a polymer backbone. Analyses of the obtained energy barriers, reaction energies and minimum energy paths indicate that the chemical reactivity of the polyaniline derivatives is significantly enhanced by protonic acid doping of the substituted materials. Further study of the density of states at the Fermi level, band gap, HOMO and LUMO shows that both the unprotonated and protonated states of these polyanilines are altered to different degrees depending on the functional group. We also note that changes in both the chemical and electronic properties are very sensitive to the polarity and size of the functional group. It is worth noting that these changes do not substantially alter the inherent chemical and electronic properties of polyaniline. Our results demonstrate that introducing different functional groups on a polymer backbone is an effective approach to obtain tailored conductive polymers with desirable properties while retaining their intrinsic properties, such as conductivity.

show abstract

“…In conjunction with the results of previous researchs , the copolymerization and templating procedures have been illustrated in Schemes and respectively. The results of these processes have been discussed in section 3.1.…”

Section: Methodsmentioning

confidence: 99%

“…Polyaniline (PAn) is one of the most investigated conductive polymers due to its easy synthesis, long term environmental stability, special redox properties associated with the chain nitrogen, and non‐redox doping by protonic acids . Nevertheless, the electrochemical activity of PAn is restricted by pH value because PAn suffers the loss of its electroactivity at neutral or alkaline solutions . To improve the electrochemical properties of PAn in neutral and alkaline media, a self doping approach has been employed, i. e. acidic groups (usually sulfo‐ groups) are introduced into the PAn chain to produce self‐doped polyaniline (SPAn) .…”

Section: Introductionmentioning

confidence: 99%

Electrochemically Generated Recognition Sites in Self‐doped Polyaniline Modified Electrodes for Voltammetric and Potentiometric Determination of Copper(II) Ion

Mohammadabadi

Zanganeh

2017

Electroanalysis

View full text Add to dashboard Cite

Chemical recognition elements for copper(II) ion have been generated in electrodes modified with poly(aniline‐co‐metanilic acid), P(An‐co‐MA), membrane and the resulting electrodes were used as selective sensors for voltammetric and potentiometric determination of this ion in an extended pH range. The P(An‐co‐MA) membrane was electrodeposited from aqueous mixed monomer solutions of An and MA, without the presence of a supporting electrolyte. For generating the recognition elements, P(An‐co‐MA) modified electrodes were subjected to several consecutive reduction/oxidation potential steps in copper(II) ion solution. It seems that during these potential steps, the receptor sites of the membrane are adjusted to the size, complexing property and hard/soft nature of copper(II) ion. This electrochemically mediated templating process, provided a selective sensor for determination of copper(II) ion. The results of preconcentration/differential pulse anodic stripping voltammetry, indicated analytical relation between the peak current and concentration of copper(II) from 1.0×10−9 to 1.0×10−4 M. The interference effect of various metal ions was explored and it was found that only mercury and silver ions show a considerable interference. The sensor exhibited selective potentiometric response for copper(II) over a wide concentration range (1.0×10−8 to 1.0×10−3 M) with a Nernstian slope of 27.9±0.3 mV per decade of copper(II) ion activity.

show abstract

Carbon dioxide sensing with sulfonated polyaniline

Cited by 34 publications

References 50 publications

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature

First-principles study of the effect of functional groups on polyaniline backbone

Electrochemically Generated Recognition Sites in Self‐doped Polyaniline Modified Electrodes for Voltammetric and Potentiometric Determination of Copper(II) Ion

Contact Info

Product

Resources

About

Carbon dioxide sensing with sulfonated polyaniline

Cited by 34 publications

References 50 publications

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO2 Sensing at Room Temperature

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO2 Sensing at Room Temperature

First-principles study of the effect of functional groups on polyaniline backbone

Electrochemically Generated Recognition Sites in Self‐doped Polyaniline Modified Electrodes for Voltammetric and Potentiometric Determination of Copper(II) Ion

Contact Info

Product

Resources

About

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature

When Nanoparticles Meet Poly(Ionic Liquid)s: Chemoresistive CO₂ Sensing at Room Temperature