Screen-printed diamond electrode: A disposable sensitive electrochemical electrode

Kondo, Takeshi; Sakamoto, Hidefumi; Kato, Tatsuya; Horitani, Masaru; Shitanda, Isao; Itagaki, Masayuki; Yuasa, Makoto

doi:10.1016/j.elecom.2011.10.013

Cited by 56 publications

(59 citation statements)

References 20 publications

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“…BDD powder (BDDP) was prepared by depositing BDD onto the surface of natural diamond powder (particle diameter < 500 nm). Detailed experimental conditions have been reported in the literature [ 14 , 15 ].…”

Section: Methodsmentioning

confidence: 99%

“…The BDD/Nafion ink was thought to be suitable for the fabrication of flexible BDD films. Further, Kondo et al, reported the use of BDD/Vylon ink for preparing screen-printed diamond electrodes based on BDD powder and Vylon [ 15 ]. In the current study, we have used both BDD/Nafion and BDD/Vylon inks for fabricating BDD film and needle electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Flexible Boron-Doped Diamond (BDD) Electrodes for Plant Monitoring

Tago¹,

Ochiai

Suzuki

et al. 2017

Sensors

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Detecting the bio-potential changes of plants would be useful for monitoring their growth and health in the field. A sensitive plant monitoring system with flexible boron-doped diamond (BDD) electrodes prepared from BDD powder and resin (Nafion or Vylon-KE1830) was investigated. The properties of the electrodes were compared with those of small BDD plate-type electrodes by monitoring the bioelectric potentials of potted Aloe and hybrid species in the genus Opuntia. While flexible BDD electrodes have wide potential windows, their cyclic voltammograms are different from those of the BDD plate. Further, the potential gap between a pair of electrodes attached to the plants changes as the plants are stimulated artificially with a finger touch, suggesting that the bioelectric potentials in the plant also changed, manifesting as changes in the potential gap between the electrodes. The BDD electrodes were assessed for their response reproducibility to a finger stimulus for 30 days. It was concluded that the plant monitoring system worked well with flexible BDD electrodes. Further, the electrodes were stable, and as reliable as the BDD plate electrodes in this study. Thus, a flexible and inexpensive BDD electrode system was successfully fabricated for monitoring the bioelectric potential changes in plants.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flexible Boron-Doped Diamond (BDD) Electrodes for Plant Monitoring

Tago¹,

Ochiai

Suzuki

et al. 2017

Sensors

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“…Natural diamond powder (Micron+SND, Element Six, particle diameter <500 nm) was used as substrate for growing boron‐doped diamond by a microwave plasma‐assisted chemical vapor deposition procedure previously described in detail . To remove graphitic impurities and in order to ensure a hydrophilic character of the surface, BDDP thus obtained was ground and then oxidized in air at 425 °C for 5 h. A typical thermal method was used for the deposition of IrO 2 on the conductive diamond powder.…”

Section: Methodsmentioning

confidence: 99%

“…Even at the anode in direct methanol fuel cells these processes can be a problem, particularly during fuel starvation and resulting polarity reversal . To avoid such drawbacks, the use as support of, boron‐doped diamond powder (BDDP) was more recently proved to be an excellent choice, due to its remarkable characteristics (outstanding chemical stability, high robustness and excellent electrochemical features) and to the fact that it can be obtained by boron‐doping low in cost, commercially available diamond particles, which could render this material affordable even for widespread utilization …”

Section: Introductionmentioning

confidence: 99%

Enhanced Activity for Methanol Oxidation of Platinum Particles Supported on Iridium Oxide Modified Boron‐Doped Diamond Powder

et al. 2017

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Electrocatalytic activity toward methanol oxidation in alkaline media of platinum nanoparticles supported on iridium oxide modified boron‐doped diamond powder (Pt/IrO2/BDDP) was assessed, and was compared with that of Pt deposited on bare diamond particles (Pt/BDDP). Cyclic voltammetry attests that the presence of the iridium oxide intermediary layer promotes methanol oxidation and provides a more efficient reactivation of Pt particles. Linear sweep voltammetric experiments performed in methanol‐free solution indicated that, at Pt/IrO2/BDDP, oxygen evolution is preceded by the formation, within the potential range of CH3OH oxidation, of adsorbed oxygenated species. As expected, the presence in close proximity of Pt particles of such species and of an important amount of IrOx(OH)y (evidenced by XPS) assists in the oxidative desorption of CO species adsorbed on Pt active sites. Steady‐state polarization measurements carried out in a floating configuration with Pt/IrO2/BDDP gas‐diffusion‐type electrodes yielded for methanol oxidation overall process Tafel slope values of ca. 120 mV decade−1, which compare well with those reported for traditional electrocatalysts.

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“…BDD electrodes exhibit a wide potential window and low background current, and therefore have potential application to highly sensitive electroanalysis [19][20][21][22][23][24][25][26][27]. Although there are many reports on electroanalysis at BDD electrodes in aqueous media, there have been few reports for non-aqueous media, which should be also important to be developed.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical detection of lipophilic antioxidants with high sensitivity at boron-doped diamond electrode

Kondo

Sakai

Watanabe

et al. 2013

Electrochimica Acta

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a b s t r a c tThe electrochemical detection of lipophilic antioxidants, ␣-tocopherol (vitamin E, VE) and ubiquinone (coenzyme Q 10 , CoQ 10 ), in methanol and in methanol/hexane mixture solutions, respectively, at borondoped diamond (BDD) electrodes was investigated by cyclic voltammetry (CV) and flow-injection electrochemical measurements. CV measurements revealed that the overpotential for electrochemical reaction of VE and CoQ 10 was larger at an oxidized BDD electrode surface than at that of a hydrogenated BDD (H-BDD) electrode. The slope of the CV calibration curve used to determine the VE and CoQ 10 concentrations was larger at a glassy carbon (GC) electrode than at the H-BDD electrode; however, the signal-to-background ratio was larger at the H-BDD electrode than at the GC electrode, due to the low background feature of the H-BDD electrode. The limit of detection (LOD), defined by a signal-to-noise ratio of three for flow-injection electrochemical detection, was much smaller at the H-BDD electrode (VE: 41 nM and CoQ 10 : 17 nM) than at the GC electrode (VE: 263 nM and CoQ 10 : 71 nM). These results confirm that the H-BDD electrode is reliable for the electrochemical detection of lipophilic antioxidants, especially at low concentrations.

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Screen-printed diamond electrode: A disposable sensitive electrochemical electrode

Cited by 56 publications

References 20 publications

Flexible Boron-Doped Diamond (BDD) Electrodes for Plant Monitoring

Flexible Boron-Doped Diamond (BDD) Electrodes for Plant Monitoring

Enhanced Activity for Methanol Oxidation of Platinum Particles Supported on Iridium Oxide Modified Boron‐Doped Diamond Powder

Electrochemical detection of lipophilic antioxidants with high sensitivity at boron-doped diamond electrode

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