Ultrafine Pt nanoparticles deposited on SiC nanosheets achieved by wet impregnation for enhanced high-temperature hydrogen gas sensing

Sun, Lihua; Wang, Bing; Wang, Kunjie; Zhou, Xingui

doi:10.1016/j.vacuum.2022.111479

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…Sensing electrodes for FA detection requires PtPd nanoparticles to be uniformly dispersed on the electrode with no agglomeration. So far the methods for preparing platinum nanoparticles have been reported as chemical deposition, chemical reduction, hydrothermal synthesis, vacuum heat treatment, and electrochemical deposition [3,19,22,[30][31][32][33][34][35][36][37][38][39]. Chemical methods for the preparation of PtPd nanoparticles use structure-directing agents and reducing agents, which can sometimes be toxic or contaminating.…”

Section: Introductionmentioning

confidence: 99%

Efficient formaldehyde sensor based on PtPd nanoparticles-loaded nafion-modified electrodes

Xu,

Jiang,

Huang

et al. 2023

Nanotechnology

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The noble metal-based electrochemical sensor design for efficient and stable formaldehyde(FA) detection is important ongoing research. In this paper, PtPd/Nafion/GCE is prepared by electrochemical cyclic voltammetry (CV) deposition method based on electrodepositing nanostructured platinum (Pt)-palladium (Pd) nanoparticles in Nafion film-coated glassy carbon electrode (GCE). The influence of deposition parameters and chemical composition (atomic ratio of Pt and Pd) on the electrochemical behaviour of PtPd/Nafion/GCE has been investigated. PtPd/Nafion/GCE displays a remarked electrocatalytic activity for the oxidation of FA and exhibits a linear relationship in the range of 10 to 5000 μM, with a detection limit of 3.3 μM in 0.1 M H2SO4 solution. It is proved that the detection performance of PtPd/Nafion/GCE electrode is valuable for further application with low detection limit, wide linear range, favourable selectivity and high response.

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