Electrically-switchable, permselective membranes prepared from nano-structured N-doped DLC

Honda, Kensuke; Yoshimatsu, Mitsuhiro; Kuriyama, Koichi; Kuwabara, Ryosuke; Naragino, Hiroshi; Yoshinaga, Kosuke; Kondo, Takeshi; Fujishima, Akira

doi:10.1016/j.diamond.2011.06.017

Cited by 10 publications

(4 citation statements)

References 34 publications

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“…As a result, to achieve molecular or ionic level filtration, the goal for the membrane fabrication would be to shrink the pore to a size which is comparable to the Debye length in a typical electrolyte. The result closest to this goal was reported in 2011 on a diamond-like-carbon membrane . With a sacrifice of the diamond quality, the pore size was decreased to ∼30 nm, which is still more than 1 order of magnitude larger than typical values for Debye length in an aqueous electrolyte.…”

Section: Introductionsupporting

confidence: 60%

“…The result closest to this goal was reported in 2011 on a diamond-like-carbon membrane. 25 With a sacrifice of the diamond quality, the pore size was decreased to ~30 nm, which is still more than one order of magnitude larger than typical values for Debye length in aqueous electrolyte. As a result, although proof of concept was observed, i.e.…”

Section: Introductionmentioning

confidence: 92%

“…The result closest to this goal was reported in 2011 on a diamond-like-carbon membrane. 25 With a sacrifice of the diamond quality, the pore size was decreased to ∼30 nm, which is still more than 1 order of magnitude larger than typical values for Debye length in an aqueous electrolyte. As a result, although proof of concept was observed, i.e., under positive bias, the movement of cation was hindered and vice versa, there is only a factor ∼2 difference in the ion diffusion rate between the "on" and "off" states.…”

Section: ■ Introductionmentioning

confidence: 93%

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Electrically Conductive Diamond Membrane for Electrochemical Separation Processes

Gao

Nebel

2016

ACS Appl. Mater. Interfaces

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Electrochemically switchable selective membranes play an important role in selective filtration processes such as water desalination, industrial waste treatment, and hemodialysis. Currently, membranes for these purposes need to be optimized in terms of electrical conductivity and stability against fouling and corrosion. In this paper, we report the fabrication of boron-doped diamond membrane by template diamond growth on quartz fiber filters. The morphology and quality of the diamond coating are characterized via SEM and Raman spectroscopy. The membrane is heavily boron doped (>10(21) cm(-3)) with >3 V potential window in aqueous electrolyte. By applying a membrane potential against the electrolyte, the redox active species can be removed via flow-through electrolysis. Compared to planar diamond electrodes, the ∼250 times surface enlargement provided by such a membrane ensures an effective removal of target chemicals from the input electrolyte. The high stability of diamond enables the membrane to not only work at high membrane bias but also to be self-cleaning via in situ electrochemical oxidation. Therefore, we believe that the diamond membrane presented in this paper will provide a solution to future selective filtration applications especially in extreme conditions.

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Section: Introductionsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 92%

Section: ■ Introductionmentioning

confidence: 93%

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Electrically Conductive Diamond Membrane for Electrochemical Separation Processes

Gao

Nebel

2016

ACS Appl. Mater. Interfaces

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“…It has been used for humidity sensing, 189 brake fluid monitoring, 190 stripping voltammetric analysis of heavy metals, [191][192][193][194] electrode material for electrochemical quartz crystal microbalance (EQCM), 195 optical transparent electrode for spectroelectrochemistry study, 196 tip electrode for SECM, 197 gas sensors 198 and biosensing. 199,200 Most DLCs show high resistivity, which limit their electrochemical applications. To enhance conductivity, Niwa et al recently have introduced a new method, ECR sputtering method, to make conductive DLCs.…”

Section: Cntsmentioning

confidence: 99%

Recent development of carbon electrode materials and their bioanalytical and environmental applications

et al. 2016

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Carbon materials have been extensively investigated due to their diversity, favorable properties, and active applications including electroanalytical chemistry. This critical review discusses new synthetic methods, novel carbon materials, new properties and electroanalytical applications of carbon materials particularly related to the preparation as well as bioanalytical and environmental applications of highly oriented pyrolytic graphite, graphene, carbon nanotubes, various carbon films (e.g. pyrolyzed carbon films, boron-doped diamond films and diamond-like carbon films) and screen printing carbon electrodes. Future perspectives in the field have also been discussed (366 references).

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Micro‐ and Nano‐structured Diamond in Electrochemistry

Gao

Nebel

2017

Nanocarbons for Electroanalysis

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Electrically-switchable, permselective membranes prepared from nano-structured N-doped DLC

Cited by 10 publications

References 34 publications

Electrically Conductive Diamond Membrane for Electrochemical Separation Processes

Electrically Conductive Diamond Membrane for Electrochemical Separation Processes

Recent development of carbon electrode materials and their bioanalytical and environmental applications

Micro‐ and Nano‐structured Diamond in Electrochemistry

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