Recovery of copper from dilute cupric sulfate solution by electrodeposition method using boron‐doped diamond electrodes

Natsui, Keisuke; Yamaguchi, Chizu; Einaga, Yasuaki

doi:10.1002/pssa.201600159

Cited by 10 publications

(10 citation statements)

References 28 publications

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“…BDD electrodes were prepared on Si wafer substratesu sing am icrowavep lasma-assisted chemical vapor deposition system (AX5400, Corns Te chnologies Ltd.) following aproceduredescribed previously. [29] Theb oron-to-carbon ratio in the feed gases was 1000 ppm, and the deposition time was 6h.C haracterization of the BDD was performed by Raman spectroscopy (excited wavelength: 532 nm) and scanning electron microscopy( SEM). Raman spectra were recorded using an Acton SP2500 (Prinston Instruments), and SEM images were taken with aJCM-6000 Plus (JEOL).…”

Section: Methodsmentioning

confidence: 99%

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

et al. 2018

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High faradaic efficiencies can be achieved in the production of formic acid (HCOOH) by metal electrodes,such as Sn or Pb,inthe electrochemical reduction of carbon dioxide (CO 2 ). However,the stability and environmental load in using them are problematic. The electrochemical reduction of CO 2 to HCOOH was investigated in af lowc ell using boron-doped diamond (BDD) electrodes.B DD electrodes have superior electrochemical properties to metal electrodes,a nd, moreover, are highly durable.T he faradaic efficiency for the production of HCOOH was as high as 94.7 %. Furthermore,the selectivity for the production of HCOOH was more than 99 %. The rate of the production was increased to 473 mmol m À2 s À1 at acurrent density of 15 mA cm À2 with afaradaic efficiency of 61 %. The faradaic efficiency and the production rate are almost the same as or larger than those achieved using Sn and Pb electrodes. Furthermore,t he stability of the BDD electrodes was confirmed by 24 hoperation.

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Section: Methodsmentioning

confidence: 99%

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

et al. 2018

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“…BDD electrodes were prepared on Si wafer substrates using a microwave plasma‐assisted chemical vapor deposition system (AX5400, Corns Technologies Ltd.) following a procedure described previously . The boron‐to‐carbon ratio in the feed gases was 1000 ppm, and the deposition time was 6 h. Characterization of the BDD was performed by Raman spectroscopy (excited wavelength: 532 nm) and scanning electron microscopy (SEM).…”

Section: Figurementioning

confidence: 99%

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

et al. 2018

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View full text Add to dashboard Cite

High faradaic efficiencies can be achieved in the production of formic acid (HCOOH) by metal electrodes, such as Sn or Pb, in the electrochemical reduction of carbon dioxide (CO ). However, the stability and environmental load in using them are problematic. The electrochemical reduction of CO to HCOOH was investigated in a flow cell using boron-doped diamond (BDD) electrodes. BDD electrodes have superior electrochemical properties to metal electrodes, and, moreover, are highly durable. The faradaic efficiency for the production of HCOOH was as high as 94.7 %. Furthermore, the selectivity for the production of HCOOH was more than 99 %. The rate of the production was increased to 473 μmol m s at a current density of 15 mA cm with a faradaic efficiency of 61 %. The faradaic efficiency and the production rate are almost the same as or larger than those achieved using Sn and Pb electrodes. Furthermore, the stability of the BDD electrodes was confirmed by 24 h operation.

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“…On the other hand, the use of boron-doped diamond (BDD) as an electrode material has gained much attention due to its higher durability, smaller background current, and higher overpotential for the oxidation of water compared to conventional electrodes. In particular, BDD has been used in many applications, such as sensors, , electrosynthesis, , metal recovery, CO 2 reduction, and so on. Despite its popularity, there have yet to be any reports concerned with the study of hydroxide ion oxidation at BDD electrodes.…”

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confidence: 99%

Hydroxide Ion Oxidation in Aqueous Solutions Using Boron-Doped Diamond Electrodes

2017

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The electrochemical oxidation behavior of hydroxide ions at the surface of boron-doped diamond (BDD) electrodes is presented. The hydroxide ion oxidation behavior was found to be affected by the surface conditions of the BDD electrode. Over the NaOH concentration range of 0.5-10 mM, a well-defined voltammetric wave attributed to hydroxide ion oxidation was observed at ∼1.25 V versus a Ag/AgCl reference electrode when using an anodically oxidized BDD (AO-BDD) electrode, while it was observed at around ∼1.15 V when a cathodically reduced BDD (CR-BDD) electrode was used. Although the hydroxide ion oxidation profiles were slightly different for the AO-BDD and CR-BDD electrodes, the peak currents was each found to have linear relationships with the NaOH concentration over the same range.

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Recovery of copper from dilute cupric sulfate solution by electrodeposition method using boron‐doped diamond electrodes

Cited by 10 publications

References 28 publications

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes

Hydroxide Ion Oxidation in Aqueous Solutions Using Boron-Doped Diamond Electrodes

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