Iron(III) chloride–benzotriazole adducts with trigonal bipyramidal geometry: Spectroscopic, structural and catalytic studies

Anastasiadis, Nikolaos C.; Bilis, George; Plakatouras, John C.; Raptopoulou, Catherine P.; Psycharis, Vassilis; Beavers, Christine M.; Teat, Simon J.; Louloudi, Maria; Perlepes, Spyros P.

doi:10.1016/j.poly.2013.03.062

Cited by 15 publications

(6 citation statements)

References 99 publications

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“…The inhibitor concentrations were selected to maintain the maximum ratios relative to the FeCl 3 concentration as found in the preliminary tests of the solubility limit. Yet, for BTA and MBTA, concentrations lower than the solubility limit (0.130 M at room temperature) were selected to avoid the formation of Fe-BTA/MBTA complexes in high-temperature experiments 73 . Indeed, lowering the inhibitor concentration to 0.065 M was found efficient in avoiding both complexation and precipitation while retaining high inhibition efficiency.…”

Section: Methods Materialsmentioning

confidence: 99%

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

et al. 2020

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Ferric chloride (FeCl3) has widespread use as an etchant in the PCB industry and for photochemical machining. Although the corrosion process of copper in FeCl3 is well known, the use of organic inhibitors of copper corrosion in FeCl3 solutions has not been reported. Such inhibition may allow microfabrication of special PCB designs and electrochemical sensors. Here, we investigate the inhibition of copper corrosion by FeCl3 (0.10 or 2.46 M) solutions with organic inhibitors. The most promising inhibitors are identified, investigated in 0.01 M FeCl3 solution using electrochemical techniques at different temperatures and exposure times, and the modified surfaces of copper are characterized by a variety of techniques in order to determine the inhibition mechanism. 5-methyl-1H-benzotriazole (MBTA, 65 mM) and 1H-benzotriazole (BTA, 65 mM) are found to be the most attractive inhibitors, with inhibition efficiencies between 96.5% and 99.5% at room temperature, depending on the exposure time and the measurement technique.

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Section: Methods Materialsmentioning

confidence: 99%

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

et al. 2020

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“…The powder x-ray diffraction (PXRD) patterns of the as-synthesized Fe-CC and Fe-CC/PCNT are shown in figure 1(a), which are consistent with the simulated profile of [FeCl 3 (Hbta) 2 ] (Hbta=benzotriazole) based on single-crystal x-ray diffraction data (CCDC No. 924220) [24], indicative of the successful preparation of Fe-CC and Fe-CC/PCNT. No XRD signal of PCNT is observed in the XRD pattern of Fe-CC/ PCNT, which is ascribed to the low crystallinity of the PCNT (figure 1(a)).…”

Section: Structure/composition and Morphologies Of Fe-cc And Fe-cc/pcntmentioning

confidence: 99%

Coordination compound-derived Fe₄N/Fe₃N/Fe/CNT for efficient electrocatalytic oxygen evolution: a facile one-step synthesis in the absence of extra nitrogen source

Cui¹,

Leng²,

Liu³

et al. 2022

Nanotechnology

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By annealing an Fe(III)-coordination compound (Fe-CC), [FeCl3(Hbta)2] (Hbta = benzotriazole) in the presence of a CNT template, an Fe4N/Fe3N/Fe/CNT heterostructure was successfully synthesized without extra nitrogen source. The decomposition of the Hbta in Fe-CC under high temperature annealing can produce carbon sheets and graphene, and the presence of CNT can alleviate the stacking of the in-situ generated carbon materials. Meanwhile, iron nitride nanoparticles (NPs) can be anchored on the carbon sheets, and the anchoring effect efficiently prevents the agglomeration of NPs and increases the amount of active catalytic sites for the oxygen evolution reaction (OER). Fe4N/Fe3N/Fe/CNT shows an excellent OER activity with a Tafel slope of 63 mV dec-1 as well as overpotentials of 121 (η10) and 275 mV (η100) at 10 and 100 mA cm-2, respectively, far exceeding commercial RuO2 and other catalysts. Density functional theory (DFT) calculations disclose that the excellent OER performance of Fe4N/Fe3N/Fe/CNT is associated with the Fe4N/Fe3N heterojunction, which can improve the electron conductivity and boost the electron transfer from N to Fe. The Fe4N/Fe3N/Fe/CNT catalyst exhibits long-term OER activity during 100 h of electrolysis at 20 mA cm-2. This is related to the dual coatings of the in-situ generated ultrathin carbon shell and few-layered graphene on the surface of the iron nitride NP, which can protect the fast leaching of iron nitride during the OER process. Furthermore, it was investigated the effects of the annealing temperature, the CNT template and the heating rate on the calcined products.

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“…54 The coordination number of Fe(II/III) is commonly observed to be six with an octahedral geometry, but three-coordinate trigonal planar, four-coordinate tetrahedral or square planar, and five-coordinate trigonal bipyramidal geometries are also found on the iron centers. [55][56][57] As expected from various geometries and oxidation states of iron, it is utilized in a broad range of redox-mediated reactions, including oxygen transfer, electron transfer chain, and the biosynthesis of neurotransmitters. 52,58 For instance, heme proteins are a prime example of iron-based electron transfer systems, where heme is the structural framework composed of iron coordinated to a porphyrin ligand with a 4N coordination mode.…”

Section: Physiological Roles Of Fe(ii/iii)mentioning

confidence: 99%

Transition metal ions and neurotransmitters: coordination chemistry and implications for neurodegeneration

2023

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Iron(III) chloride–benzotriazole adducts with trigonal bipyramidal geometry: Spectroscopic, structural and catalytic studies

Cited by 15 publications

References 99 publications

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

Coordination compound-derived Fe₄N/Fe₃N/Fe/CNT for efficient electrocatalytic oxygen evolution: a facile one-step synthesis in the absence of extra nitrogen source

Transition metal ions and neurotransmitters: coordination chemistry and implications for neurodegeneration

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Iron(III) chloride–benzotriazole adducts with trigonal bipyramidal geometry: Spectroscopic, structural and catalytic studies

Cited by 15 publications

References 99 publications

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

Corrosion inhibition of copper in ferric chloride solutions with organic inhibitors

Coordination compound-derived Fe4N/Fe3N/Fe/CNT for efficient electrocatalytic oxygen evolution: a facile one-step synthesis in the absence of extra nitrogen source

Transition metal ions and neurotransmitters: coordination chemistry and implications for neurodegeneration

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Coordination compound-derived Fe₄N/Fe₃N/Fe/CNT for efficient electrocatalytic oxygen evolution: a facile one-step synthesis in the absence of extra nitrogen source