Improving the stability of Pb2+ ion-selective electrodes by using 3D polyaniline nanowire arrays as the inner solid-contact transducer

Zeng, Xianghua; Liu, Yanhua; Jiang, Xiaohui; Waterhouse, Geoffrey I. N.; Zhang, Zhiming; Yu, Liangmin

doi:10.1016/j.electacta.2021.138414

Cited by 27 publications

(12 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These forms have different conductivities and only emeraldine base PANI in half oxidation state is conductive (Dan et al 2009). As is reported in the work by Jiang et al (2018) nanostructured conductive polymers in the form of nanofibers (Zhang et al 2021), nanowires (Zhang et al 2020;Zeng et al 2021) or nanotubes (Das et al 2021) are particularly important in the field of chemical sensors. In comparison to globular PANI nanostructured forms exhibit greater sensitivity and faster time due to their higher surface area (Huang and Kaner 2004).…”

Section: Introductionmentioning

confidence: 89%

Application of polyaniline nanofibers for the construction of nitrate all-solid-state ion-selective electrodes

2021

View full text Add to dashboard Cite

The application of polyaniline nanofibers doped with chloride and nitrate ions (PANINFs-Cl and PANINFs-NO3) in potentiometry was described. Both kinds of nanofibers were used as an ion-to-electron transducer in ion-selective electrodes with solid contact (SCISEs). Extensive research on the properties of the nanofibers themselves (SEM, UV–Vis spectroscopy, FTIR) and the constructed electrodes (potentiometric methods, electrochemical impedance spectroscopy) has been carried out. Basic analytical parameters of electrodes containing various nanofibers contents in the ion-selective membrane and with nanofibers as an intermediate layer were determined. It was found that application of PANI nanofibers resulted in improvement of electrode performance (among others, better stability and reversibility of the electrode potential). The obtained sensors were characterized by a high slope of the calibration curve, a wide measuring range and a fast response time. Moreover, they were insensitive to change of redox potential, as well as light and the presence of oxygen in the solution, what is important from a practical point of view. They were also successfully used for nitrate determination in real environmental samples.

show abstract

Section: Introductionmentioning

confidence: 89%

Application of polyaniline nanofibers for the construction of nitrate all-solid-state ion-selective electrodes

2021

View full text Add to dashboard Cite

show abstract

“…The effect of the SC on the sensor capacitance was measured more accurately by EIS [ 47 , 48 ]. Chronopotentiometry can be used to evaluate the potential stability of SC [ 49 ]. There were also tests conducted related to the effects of O 2 , CO 2 , light, and water layers to verify the stability of the SC [ 50 ].…”

Section: Advances In All-solid-state Ion-selective Electrodesmentioning

confidence: 99%

Unlocking All-Solid Ion Selective Electrodes: Prospects in Crop Detection

Zhai

Luo

et al. 2022

Sensors

View full text Add to dashboard Cite

This paper reviews the development of all-solid-state ion-selective electrodes (ASSISEs) for agricultural crop detection. Both nutrient ions and heavy metal ions inside and outside the plant have a significant influence on crop growth. This review begins with the detection principle of ASSISEs. The second section introduces the key characteristics of ASSISE and demonstrates its feasibility in crop detection based on previous research. The third section considers the development of ASSISEs in the detection of corps internally and externally (e.g., crop nutrition, heavy metal pollution, soil salinization, N enrichment, and sensor miniaturization, etc.) and discusses the interference of the test environment. The suggestions and conclusions discussed in this paper may provide the foundation for additional research into ion detection for crops.

show abstract

“…Polyaniline (PANI), a typical conductive polymer, is a prominent material for chemical sensors on account of high conductivity, electrochemical reversibility, mechanical flexibility, low cost, and environmental compatibility. [1][2][3][4][5][6][7][8] Nanofeatured PANI particles (e.g., nanorod, [9] nanotube, [10] nanofiber, [11] and nanoflower [12] ) have demonstrated impressive electrochemical performance due to increased electrolyte diffusion and ion transport. [13][14][15][16] For example, the PANI nanofiber electrode exhibited remarkably high glucose sensitivity (486 µA cm −2 mm), excellent electrochemical performance within a range of 5−50 × 10 −3 m, and a lower detection limit of 4 × 10 −6 m. [17] The PANI electrodes with coral-like nanostructures showed a linear dynamic range from 10 −6 to 10 −17 m of target dexyribonucleic acid with a low detection limit (7 × 10 −18 m).…”

Section: Introductionmentioning

confidence: 99%

Transferring and Retaining of Different Polyaniline Nanofeatures via Electrophoretic Deposition for Enhanced Sensing Performance

Zhai

Wang

et al. 2023

Small

View full text Add to dashboard Cite

Nanofeatured polyaniline (PANI) electrodes have demonstrated impressive sensing performance due to the enhanced electrolyte diffusion and ion transport. However, the retaining of these nanostructures on substrates via electrophoretic deposition (EPD) faces an insurmountable challenge from the involved dedoping process. Here, camphorsulfonic acid is utilized with high steric effects to dope PANI (PANI-CSA) that can be directly used EPD without involving a dedoping process. Five different nanofeatures (sea cucumber-like, nanofiber, amorphous, nanotube, and nanorod) are synthesized, and they have been all successfully transferred onto indium tin oxide substrate in a formic acid/acetonitrile system, namely a morphology memory effect. The mechanism of retaining these nanofeatures is revealed, which is realized via the processes of dissolution of PANI-CSA, codoping and solvation, and reassembly of basic units into the original nanofeature. The enhanced protonation level by the codoping of formic acid and solvation of acetonitrile plays the key role in retaining these nanofeatures. This method is also applicable to transfer PANI/gold nanorod composites (PANI-CSA/AuNRs). The PANI-CSA/ AuNRs electrode as an ascorbic acid sensor has shown an excellent sensing performance with a sensitivity up to 872.7 µA mm −1 cm −2 and a detection limit of as low as 0.18 × 10 −6 m.

show abstract

Improving the stability of Pb2+ ion-selective electrodes by using 3D polyaniline nanowire arrays as the inner solid-contact transducer

Cited by 27 publications

References 49 publications

Application of polyaniline nanofibers for the construction of nitrate all-solid-state ion-selective electrodes

Application of polyaniline nanofibers for the construction of nitrate all-solid-state ion-selective electrodes

Unlocking All-Solid Ion Selective Electrodes: Prospects in Crop Detection

Transferring and Retaining of Different Polyaniline Nanofeatures via Electrophoretic Deposition for Enhanced Sensing Performance

Contact Info

Product

Resources

About