A highly sensitive ascorbic acid sensor based on carbon-supported CoPd nanoparticles

Yang, Fengchun; Wang, Jing; Cao, Yang; Zhang, Lu; Zhang, Xin

doi:10.1016/j.snb.2014.08.050

Cited by 40 publications

(18 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent studies have shown that a Pd-based anode catalyst shows good catalytic performance for AA electro-oxidation. [42][43][44] In the alkaline condition, the Pd catalyst exhibits higher AA electro-oxidation than the acidic condition. [45] The different Pd morphological effect on the catalytic activity of AA electrooxidation in alkaline conditions needs to be investigated.…”

Section: Introductionmentioning

confidence: 99%

Christmas‐Tree‐Shaped Palladium Nanostructures Decorated on Glassy Carbon Electrode for Ascorbic Acid Oxidation in Alkaline Condition

Hasan

Nagao

2021

ChemistrySelect

View full text Add to dashboard Cite

Christmas-tree-shaped Pd nanostructures were synthesized using a simple one-step electrodeposition method with no additives on a glassy carbon electrode (GCE) surface. Growth of the hierarchical nanostructures was optimized through the applied potential, deposition time, and precursor concentration. Comprehensive characterization techniques such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Xray powder diffraction (XRD), and cyclic voltammetry (CV) were used to characterize structural features of the Christmas-treeshaped Pd nanostructures. Our Christmas-tree-shaped Pd nanostructures showed excellent catalytic activity for ascorbic acid (AA) electro-oxidation in the alkaline condition. The modified electrode exhibited current density of 4.5 mA cm À 2 : much higher than that of unmodified GCE (0.6 mA cm À 2 ). This simple electrodeposition technique with well-defined hierarchical Pd nanostructures is expected to offer new perspectives using Pdbased nanostructured surfaces in different research areas.

show abstract

Section: Introductionmentioning

confidence: 99%

Christmas‐Tree‐Shaped Palladium Nanostructures Decorated on Glassy Carbon Electrode for Ascorbic Acid Oxidation in Alkaline Condition

Hasan

Nagao

2021

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Several noble metal nanoparticles, such as gold, silver, and platinum, are not suitable for commercialization due to their high cost and low availability. In contrast, palladium nanoparticles (PdNPs), an emerging noble metal nanoparticle, have been favored by researchers in recent years because of their higher abundance, lower cost, and well-resisted toxic intermediates [ 5 – 7 ]. However, the aggregation of PdNPs needs to be well addressed before mass application.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid Using a Novel Electrochemical Sensor Based on Palladium Nanoparticles/Reduced Graphene Oxide Nanocomposite

Yuyun

Liu

et al. 2020

International Journal of Analytical Chemistry

View full text Add to dashboard Cite

A fresh strategy based on two-step electrochemical reduction for the fabrication of palladium nanoparticles/reduced oxide nanocomposite-modified glass carbon electrode (PdNPs/rGO/GCE) was established in this study. Field emission scanning electron microscopy (FESEM) images showed that spherical PdNPs were evenly distributed on the surface of rGO-modified electrode (rGO/GCE), and the introduction of PdNPs has no effect on the morphology of rGO. Electrochemical impedance spectroscopy (EIS) studies revealed that the conductivity of PdNPs/rGO/GCE was higher than that of rGO/GCE and bare GCE. The electrochemical performances of PdNPs/rGO/GCE sensor were investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry using ascorbic acid (AA), dopamine (DA), and uric acid (UA) as analytes. At the optimized conditions, wide linear ranges of 0.5–3.5 mM (R2 = 0.99), 3–15 μM (R2 = 0.99) and 15–42 μM (R2 = 0.99), and 0.3–1.4 mM (R2 = 0.99) towards AA, DA, and UA in ternary mixture were observed, respectively. In addition to superior anti-interference capability, fast response (≤5 s), excellent reproducibility, and good long-term stability were also given by this sensor. These results suggested that PdNPs/rGO/GCE is promising for the simultaneous detection of AA, DA, and UA in practical application.

show abstract

“…In particular, the PB/CS/CC electrode’s sensitivity is calculated to be 1.64 A M −1 , which is larger than that of other AA sensors, for example, 0.194 A M −1 for electrospun iridium oxide nanofibers modified glass carbon electrode 36, 0.141 A M −1 for minopyrimidyl functionalized conductive polymer electrode 37, 0.760 A M −1 for hydroquinone modified chotisan/carbon film electrode 38. The CoPd/C modified electrode also has high performance, because Pd‐based catalysts contain noble metal which has excellent electrical conductivity, high surface and chemical stability 39. While the component of PB/CS/CC electrode is inexpensive and facile, the performance of electrocalytic oxidation of AA is also great.…”

Section: Resultsmentioning

confidence: 99%

Prussian Blue and Chitosan Modified Carbon Cloth Electrode as a High Performance Sensor of Ascorbic Acid

Yue

Tricard

et al. 2016

Electroanalysis

View full text Add to dashboard Cite

The modification of carbon cloth (CC) with Prussian blue (PB) and chitosan (CS) leads to the elaboration of a composite electrode (PB/CS/CC), employed to electrocatalyze the oxidation of ascorbic acid (AA). This electrode exhibits great performances towards the AA detection, thanks to the good conductivity of CC and the efficient catalytic properties of PB. The modified electrode shows a rapid response of less than 2 s, a very high sensitivity of 1.64 A ⋅ M−1 and a good resistance towards common interferences. Its linear range goes from 3×10−7 M to 3×10−4 M (R2=0.993), with a detection limit (S/N=3) of 2.50×10−7 M. Finally, such electrode can detect AA in commercial vitamin C; it is thus a good candidate as a simple and convenient sensor for general applications.

show abstract

A highly sensitive ascorbic acid sensor based on carbon-supported CoPd nanoparticles

Cited by 40 publications

References 43 publications

Christmas‐Tree‐Shaped Palladium Nanostructures Decorated on Glassy Carbon Electrode for Ascorbic Acid Oxidation in Alkaline Condition

Christmas‐Tree‐Shaped Palladium Nanostructures Decorated on Glassy Carbon Electrode for Ascorbic Acid Oxidation in Alkaline Condition

Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid Using a Novel Electrochemical Sensor Based on Palladium Nanoparticles/Reduced Graphene Oxide Nanocomposite

Prussian Blue and Chitosan Modified Carbon Cloth Electrode as a High Performance Sensor of Ascorbic Acid

Contact Info

Product

Resources

About