Boron doped nanocrystalline diamond microelectrodes for the detection of Zn2+ and dissolved O2

Silva, E.L.; Bastos, A.C.; Neto, M.A.; Silva, R.F.; Zheludkevich, Mikhail L.; Ferreira, M.G.S.; Oliveira, F.J.

doi:10.1016/j.electacta.2012.05.074

Cited by 22 publications

(9 citation statements)

References 44 publications

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“…Electrochemical detection is a common measurement method of dissolved oxygen [47]. Electrochemical dissolved oxygen sensors are now the most widely used sensors because they can realize in situ online measurements [48]. Most of the research on electrochemical dissolved oxygen sensors focuses on improving the sensitive materials, and it is expected that the service life of the sensor will be improved by using new sensitive materials [49].…”

Section: Dissolved Oxygen Detection Technologiesmentioning

confidence: 99%

Review of Dissolved Oxygen Detection Technology: From Laboratory Analysis to Online Intelligent Detection

Wei

Jiao

et al. 2019

Sensors

127

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Dissolved oxygen is an important index to evaluate water quality, and its concentration is of great significance in industrial production, environmental monitoring, aquaculture, food production, and other fields. As its change is a continuous dynamic process, the dissolved oxygen concentration needs to be accurately measured in real time. In this paper, the principles, main applications, advantages, and disadvantages of iodometric titration, electrochemical detection, and optical detection, which are commonly used dissolved oxygen detection methods, are systematically analyzed and summarized. The detection mechanisms and materials of electrochemical and optical detection methods are examined and reviewed. Because external environmental factors readily cause interferences in dissolved oxygen detection, the traditional detection methods cannot adequately meet the accuracy, real-time, stability, and other measurement requirements; thus, it is urgent to use intelligent methods to make up for these deficiencies. This paper studies the application of intelligent technology in intelligent signal transfer processing, digital signal processing, and the real-time dynamic adaptive compensation and correction of dissolved oxygen sensors. The combined application of optical detection technology, new fluorescence-sensitive materials, and intelligent technology is the focus of future research on dissolved oxygen sensors.

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Section: Dissolved Oxygen Detection Technologiesmentioning

confidence: 99%

Review of Dissolved Oxygen Detection Technology: From Laboratory Analysis to Online Intelligent Detection

Wei

Jiao

et al. 2019

Sensors

127

View full text Add to dashboard Cite

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“…Ar was used as a carrier gas in case of doping parameter were 10, 15, and 20 standard cubic centimeters per minute (sccm) for BDD1, BDD2, and BDD3, respectively. The experimental conditions were carefully selected based on the extensive previous work carried out within our group, particularly on prior knowledge acquired from several studies related to intrinsic and boron-doped diamond HFCVD thin films. − …”

Section: Experimental Sectionmentioning

confidence: 99%

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Sharma

Girão

Chapon

et al. 2022

ACS Appl. Mater. Interfaces

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Accurate determination of the effective doping range within diamond thin films is important for fine-tuning of electrical conductivity. Nevertheless, it is not easily attainable by the commonly adopted techniques. In this work, pulsed RF glow discharge optical emission spectrometry (GD-OES) combined with ultrafast sputtering (UFS) is applied for the first time to acquire elemental depth profiles of intrinsic diamond coatings and boron content bulk distribution in films. The GD-OES practical advances presented here enabled quick elemental profiling with noteworthy depth resolution and determination of the film interfaces. The erosion rates and layer thicknesses were measured using differential interferometric profiling (DIP), demonstrating a close correlation between the coating thickness and the carbon/hydrogen gas ratio. Moreover, DIP and the adopted semiquantification methodology revealed a nonhomogeneous bulk distribution of boron within the diamond crystalline structure, i.e., boron doping is both substitutional and interstitial within the diamond framework. DIP measurements also showed that effective boron doping is not linearly correlated to the increasing content introduced into the diamond coating. This is a finding well supported by X-ray diffraction (XRD) Rietveld refinement and X-ray photoelectron spectroscopy (XPS). This work demonstrates the advantage of applying advanced GD-OES operation modes due to its ease of use, affordability, accuracy, and high-speed depth profile analysis capability.

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“…The applicability of sharp tungsten wires produced in this way has been demonstrated with CVD diamond coatings for scanning probe electrochemical measurements. 3,32 FIG. 9.…”

Section: Effect Of the Auxiliary Electrode Diametersmentioning

confidence: 99%

“…The downsizing of metal wires to dimensions close to the atomic scale has enabled scientists to study micro-or even nano-scale volumes and greatly improve the ability to characterize such confined systems, whether the wires are used in their pure state or coated with another material. [1][2][3][4][5] Microelectrodes are the key elements that made possible the development of relatively new electrochemical techniques, such as SECM (Scanning Electrochemical Microscopy) and SVET (Scanning Vibrating Electrode Technique), or imaging ones such as STM (Scanning Tunneling Microscopy). Through the use of microelectrode based techniques it has been possible to acknowledge fast reactions of the order of microseconds or less or even detect species in concentrations as low as a few ppb.…”

Section: Introductionmentioning

confidence: 99%

Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes

Silva

Zheludkevich

et al. 2014

Review of Scientific Instruments

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A novel electrochemical wire etching method of fabrication of ultrasharp nanoelectrodes is reported. Tungsten wires can be sharpened to less than 10 nm tip radius in a reproducible manner in less than 1 min by using controllable hydrodynamic electrolyte flow combined with optimized electrochemical etching parameters. The method relies on the variations of the electric field at the surface of a metal wire, while the electrolyte solution is in motion, rather than on the ionic gradient generated in a static solution. © 2014 AIP Publishing LLC. [http://dx

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Boron doped nanocrystalline diamond microelectrodes for the detection of Zn2+ and dissolved O2

Cited by 22 publications

References 44 publications

Review of Dissolved Oxygen Detection Technology: From Laboratory Analysis to Online Intelligent Detection

Review of Dissolved Oxygen Detection Technology: From Laboratory Analysis to Online Intelligent Detection

Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Novel electrochemical method of fast and reproducible fabrication of metallic nanoelectrodes

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