Influence of boron content on the morphological, spectral, and electroanalytical characteristics of anodically oxidized boron-doped diamond electrodes

Schwarzová‐Pecková, Karolina; Vosáhlová, Jana; Barek, Jiřı́; Šloufová, Ivana; Pavlová, Ewa; Petrák, Václav; Zavázalová, Jaroslava

doi:10.1016/j.electacta.2017.05.006

Cited by 113 publications

(65 citation statements)

References 75 publications

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“…Macroscopic studies of the solvent window in several supporting electrolytes including chloride solutions, for differently doped nanocrystalline O‐BDD electrodes (anodically treated in acid) have been reported . It was also found that the solvent window decreased as the average boron doping level increased, and the cathodic onset potential was affected more by doping than the anodic one.…”

Section: Resultsmentioning

confidence: 94%

“…For macroscopic measurements of pBDD, it has been reported that the solvent window decreases slightly as the boron doping level increases, and that this effect is more marked on the cathodic side . However, others report no effect of boron doping and instead show the importance of sp 2 content, with the window narrowing with increasing sp 2 content of the electrode surface .…”

Section: Introductionmentioning

confidence: 99%

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Facet‐Resolved Electrochemistry of Polycrystalline Boron‐Doped Diamond Electrodes: Microscopic Factors Determining the Solvent Window in Aqueous Potassium Chloride Solutions

et al. 2018

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A systematic examination of the microscopic factors affecting the aqueous solvent (electrolyte) window of polycrystalline (p) boron-doped diamond (BDD) electrodes in chloride-containing salt solutions is undertaken by using scanning electrochemical cell microscopy (SECCM) in conjunction with electron backscatter diffraction (EBSD) and Raman microscopy. A major focus is to determine the effect of the local boron doping level, within the same orientation grains, on the solvent window response. EBSD is used to select the predominant (110) orientated areas of the surface with different boron-doped facets, thereby eliminating crystallographic effects from the electrochemical response. Voltammetric SECCM is employed, whereby a cyclic voltammogram is recorded at each pixel mapped by the meniscus-contact SECCM cell. The data obtained can be played as an electrochemical movie of potential-resolved current maps of the surface to reveal spatial variations of electroactivity, over a wide potential range, including the solvent (electrolyte) window.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Facet‐Resolved Electrochemistry of Polycrystalline Boron‐Doped Diamond Electrodes: Microscopic Factors Determining the Solvent Window in Aqueous Potassium Chloride Solutions

et al. 2018

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“…For some analytes, an APT‐BDDE was chosen as the sensor for the analytical application. However, a performance comparison with the analytical response of a CPT‐BDDE is not reported . In most cases, the use of the APT‐BDDE seems like a good option, being considered a successful strategy to prevent the fouling of the electrode.…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

“…However, a performance comparison with the analytical response of a CPT-BDDE is not reported. [196][197][198][199][200][201][202][203] In most cases, the use of the APT-BDDE seems like a good option, being considered a successful strategy to prevent the fouling of the electrode. When melatonin was determined simply using an APT-BDDE, [201] no fouling effects were observed.…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

“…When melatonin was determined simply using an APT-BDDE, [201] no fouling effects were observed. Schwarzova-Peckova et al [198] reported on the voltammetric determination of 2-aminobiphenyl using nanocrystalline APT-BDDEs with different boron doping levels (500-8000 ppm). The APT was performed in steps, starting with a polarization at + 2.4 V vs. Ag/AgCl (3 mol L À 1 KCl) for 20 min, in 0.1 mol L À 1 H 2 SO 4 .…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

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Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

et al. 2020

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The several outstanding properties of boron‐doped diamond electrodes (BDDEs) have allowed their application for various purposes, among them electrochemical sensing. However, the electrochemical response of many redox species on BDDEs can be strongly dependent on whether their surfaces are predominantly hydrogen‐ (HT) or oxygen‐terminated (OT). Fortuitously, electrochemical pretreatments themselves can be used to enrich in situ the BDEE surface in one or the other type of termination. The surface of a cathodically pretreated BBDE (CPT‐BDDE) becomes enriched in HTs, whereas that of an anodically pretreated BDDE (APT‐BDEE) becomes enriched in OTs. Thus, when suitable, the electrochemical activity of a BDDE for a given analyte may be tuned by electrochemical pretreatments, yielding enhanced sensing properties. The main purpose of this review is the compilation and discussion of papers published after 2009 reporting on electroanalytical applications based on a CPT‐BDDE or an APT‐BDDE. Procedures to perform proper electrochemical pretreatments are also discussed.

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Multifunctional and Mechanically Robust Porous Diamond with Large Electroactive Surfaces via Electrically Conductive and Insulating Templates for 3D Electrode Applications

Ashcheulov

Hák

Sedláková

et al. 2022

Adv Materials Inter

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graphite, etc., diamond has attracted significant research attention, due to its exceptional mechanical, chemical, and physical properties granted by sp 3hybridized carbon bonding. [1] Advances in the synthesis of diamond in the form of polycrystalline coatings have driven a rapid development of numerous applications-to date, applications span from quantum-based, biological/biomedical, wastewater treatment, ozone generation to micro/nano-electromechanical systems, and many others. [2] Many of the aforementioned applications are reliant on the ability of diamond to conduct electrical current, which is attained in a controllable manner by the introduction of boron atoms into the diamond lattice during synthesis of boron-doped diamond (BDD). [3] In the field of electrochemical engineering, polycrystalline BDD in the form of electrodes are widely recognized for their sustained microstructural stability amid harsh anodic and cathodic polarizations, along with insusceptibility to molecular adsorption and fouling, which contributes to the growing use of BDD electrodes in multiple electrochemical research studies and applications. [4] Although, at present several polycrystalline diamond products are commercially available, a number of applications that rely on properties granted exclusively by diamond are expected to benefit from significant enlargement of the diamond surface area available per unit volume. [5,6] In particular, industrial electrochemical processes (e.g., oxidation of organic contaminants in wastewater via BDD electrodes), which generally require utilization of expensive and large electrochemical reactors, would profit from an enhanced product-generation rate per unit volume that scales with the surface of the electrode, therefore enabling economic benefits due to a significant reduction of the volume of the reactor.A number of works have recently reported on the enlargement/structuring of polycrystalline BDD coating surfaces, which is achieved via three distinctive fabrication approaches: i) etching of diamond with various surface masks (i.e., top-down Highly functional 3D biological systems, which are ordinary in this physical world, suggest that traditional planar/flat materials when assembled into 3D variants, can deliver significantly higher levels of functionality and efficiency. Thanks to its set of unique properties, diamond has received significant recognition as the material of choice for a variety of functional platforms, however, implementation of diamond in real-world applications has lagged behind alternative materials, which offer a greater degree of versatility. In this regard, for applications to benefit from diamond-specific properties, approaches on fabrication of diamond beyond the common planar form in a practical and scalable manner are required today. Capitalizing on the ability to synthesize diamond over large areas, this study demonstrates fabrication of porous borondoped diamond (BDD) in freestanding form and on wafer-compatible sizes. Porous BDD electrodes deliver robust ele...

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Influence of boron content on the morphological, spectral, and electroanalytical characteristics of anodically oxidized boron-doped diamond electrodes

Cited by 113 publications

References 75 publications

Facet‐Resolved Electrochemistry of Polycrystalline Boron‐Doped Diamond Electrodes: Microscopic Factors Determining the Solvent Window in Aqueous Potassium Chloride Solutions

Facet‐Resolved Electrochemistry of Polycrystalline Boron‐Doped Diamond Electrodes: Microscopic Factors Determining the Solvent Window in Aqueous Potassium Chloride Solutions

Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

Multifunctional and Mechanically Robust Porous Diamond with Large Electroactive Surfaces via Electrically Conductive and Insulating Templates for 3D Electrode Applications

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