Topic
Oxalic acid
About: Oxalic acid is a research topic. Over the lifetime, 11584 publications have been published within this topic receiving 173263 citations. The topic is also known as: ethanedioic acid & H2ox.
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TL;DR: In this paper, the influence of anodizing variables, such as applied voltage, solution temperature, oxalic acid concentration, agitation rate, and sulfuric acid concentrations, on the average pore diameter of AAO were systematically investigated using fractional factorial design (FFD).
63 citations
TL;DR: In this paper, a palladium nanoparticle-loaded carbon nanofiber (Pd/CNF) composites were used to detect oxalic acid (OA) in spinach.
Abstract: We have developed a novel electrochemical oxalic acid (OA) sensor based on the palladium nanoparticle-loaded carbon nanofiber (Pd/CNF) composites. These composites with large amounts of spherical nanoparticles well dispersed on the carbon nanofibers (CNF) were produced by combination of electrospinning technique with thermal treatment method. When applied to oxidation of OA, the Pd/CNF modified carbon paste electrode (Pd/CNF-CPE) exhibited high electrocatalytic performances with fast voltammetric responses and notably decreased overpotential compared to the bare and even the CNF modified CPE. A detection limit of 0.2 mM with linear ranges of 0.2–13 mM and 13–45 mM can be obtained at the Pd/CNF-CPE. Based on its high sensitivity and good selectivity, the proposed method was applied to determination of OA in spinach, and the satisfactory results confirmed the applicability of this sensor in practical analysis.
62 citations
TL;DR: In this paper, the effect of fabrication temperature (450 to 650°C) on the structure and electronic properties of g-C3N4 prepared from melamine was investigated. But the results were limited to the presence of oxalic acid and triethanolamine (TEOA).
62 citations
TL;DR: Martinez-Huitle et al. as mentioned in this paper investigated the kinetic behavior of OA at different metal (Rh, Pd, Os, Ir, Pt and Au), at dimensionally stable anodes (RuO2-TiO2) and at glassy carbon (GC) electrodes.
Abstract: Oxalic acid is one of the proposed metabolites of the anodic oxidation of more complex organic molecules In spite of its simple structure, its mineralization strongly depends on the nature of the electrode material at which the process is carried out Sargisyan and Vasil’ev (Elektrokhimiya 18:845, 1982) pointed out such dependence, investigating the kinetic behavior of OA at different metal (Rh, Pd, Os, Ir, Pt and Au), at dimensionally stable anodes (RuO2–TiO2) and at glassy carbon (GC) electrodes Their conclusions highlighted the important role played by the organic anion adsorption step, claiming that OA is oxidized with increasing difficulty at electrode materials having higher oxygen affinity More recently, these assumptions have been supported by data on OA oxidation at high anodic potentials (Martinez-Huitle et al, Electrochim Acta 49:4027, 2004) To further enrich the picture, in the present paper, kinetic investigations were carried out at different mixed-oxides, Pt, GC and highly conductive, boron-doped diamond (BDD) electrodes, with either oxygen or fluorine at their surface
62 citations
TL;DR: The formation of most crystals was biologically induced, as confirmed by studying the crystals formed in the phyllodes from seedlings grown in a glasshouse, and may have functions in removing excess calcium, magnesium and sulfur, protecting the plants against herbivory, and detoxifying aluminium and heavy metals.
62 citations