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Chen X, Dong X, Zhang C, Zhu M, Ahmed E, Krishnamurthy G, Rouzbahani R, Pobedinskas P, Gauquelin N, Jannis D, Kaur K, Hafez AME, Thiel F, Bornemann R, Engelhard C, Schönherr H, Verbeeck J, Haenen K, Jiang X, Yang N. Interlayer Affected Diamond Electrochemistry. SMALL METHODS 2024:e2301774. [PMID: 38874124 DOI: 10.1002/smtd.202301774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Diamond electrochemistry is primarily influenced by quantities of sp3-carbon, surface terminations, and crystalline structure. In this work, a new dimension is introduced by investigating the effect of using substrate-interlayers for diamond growth. Boron and nitrogen co-doped nanocrystalline diamond (BNDD) films are grown on Si substrate without and with Ti and Ta as interlayers, named BNDD/Si, BNDD/Ti/Si, and BNDD/Ta/Ti/Si, respectively. After detailed characterization using microscopies, spectroscopies, electrochemical techniques, and density functional theory simulations, the relationship of composition, interfacial structure, charge transport, and electrochemical properties of the interface between diamond and metal is investigated. The BNDD/Ta/Ti/Si electrodes exhibit faster electron transfer processes than the other two diamond electrodes. The interlayer thus determines the intrinsic activity and reaction kinetics. The reduction in their barrier widths can be attributed to the formation of TaC, which facilitates carrier tunneling, and simultaneously increases the concentration of electrically active defects. As a case study, the BNDD/Ta/Ti/Si electrode is further employed to assemble a redox-electrolyte-based supercapacitor device with enhanced performance. In summary, the study not only sheds light on the intricate relationship between interlayer composition, charge transfer, and electrochemical performance but also demonstrates the potential of tailored interlayer design to unlock new capabilities in diamond-based electrochemical devices.
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Affiliation(s)
- Xinyue Chen
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Ximan Dong
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Chuyan Zhang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Meng Zhu
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Essraa Ahmed
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Giridharan Krishnamurthy
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Rozita Rouzbahani
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Paulius Pobedinskas
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Nicolas Gauquelin
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Daen Jannis
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Kawaljit Kaur
- Physical Chemistry I, Department of Chemistry and Biology and Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Aly Mohamed Elsayed Hafez
- Analytical Chemistry, Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Felix Thiel
- Institute for High Frequency and Quantum Electronics, University of Siegen, 57076, Siegen, Germany
| | - Rainer Bornemann
- Institute for High Frequency and Quantum Electronics, University of Siegen, 57076, Siegen, Germany
| | - Carsten Engelhard
- Analytical Chemistry, Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Holger Schönherr
- Physical Chemistry I, Department of Chemistry and Biology and Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Johan Verbeeck
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Ken Haenen
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Nianjun Yang
- Department of Chemistry, Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
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2
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Zaher HT, Hefnawy MA, Medany SS, Kamel SM, Fadlallah SA. Synergetic effect of essential oils and calcium phosphate nanoparticles for enhancement the corrosion resistance of titanium dental implant. Sci Rep 2024; 14:1573. [PMID: 38238413 PMCID: PMC10796362 DOI: 10.1038/s41598-024-52057-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
Calcium phosphate (CaPO4) coating is one of various methods that is used to modify the topography and the chemistry of Ti dental implant surface to solve sever oral problems that result from diseases, accidents, or even caries due to its biocompatibility. In this work, anodized (Ti-bare) was coated by CaPO4 prepared from amorphous calcium phosphate nanoparticles (ACP-NPs) and confirmed the structure by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR) techniques. Ti-bare was coated by prepared CaPO4 through the casting process, and the morphology of Ti/CaPO4 was characterized by scanning electron microscope (SEM) where the nano-flakes shape of CaPO4 and measured to be 60 ~ 80 nm was confirmed. The stability of Ti-bare and coated Ti/CaPO4 was studied in a simulated saliva solution using electrochemical impedance spectroscopy (EIS) and linear polarization techniques to deduce their corrosion resistance. Furthermore, three essential oils (EO), Cumin, Thyme, and Coriander, were used to stimulate their synergistic effect with the CaPO4 coat to enhance the corrosion resistance of Ti implant in an oral environment. The fitting EIS parameters based on Rs [RctC]W circuit proved that the charge transfer resistance (Rct) of Ti/CaPO4 increased by 264.4, 88.2, and 437.5% for Cumin, Thyme, and Coriander, respectively, at 2% concentration.
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Affiliation(s)
- Heba Tarek Zaher
- Biotechnology Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Mahmoud A Hefnawy
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Shymaa S Medany
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - S M Kamel
- Oral Biology, October University for Modern Sciences and Art, MSA University, Giza, Egypt
| | - Sahar A Fadlallah
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
- Biotechnology Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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3
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Huang W, Huang Y, Tang B, Fu Y, Guo C, Zhang J. Electrochemical oxidation of carbamazepine in water using enhanced blue TiO 2 nanotube arrays anode on porous titanium substrate. CHEMOSPHERE 2023; 322:138193. [PMID: 36812998 DOI: 10.1016/j.chemosphere.2023.138193] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/12/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
In this study, a blue TiO2 nanotube arrays anode on porous titanium substrate (Ti-porous/blue TiO2 NTA) was successfully fabricated by facile anodization and in situ reduction, and was used to investigate the electrochemical oxidation of carbamazepine (CBZ) in aqueous solution. The surface morphology and crystalline phase of the fabricated anode were characterized by SEM, XRD, Raman spectroscopy and XPS, and the electrochemical analysis confirmed that blue TiO2 NTA on Ti-porous substrate had larger electroactive surface area, better electrochemical performance and higher ⋅OH generation ability than that on Ti-plate substrate. The removal efficiency of 20 mg L-1 CBZ in 0.05 M Na2SO4 solution reached 99.75% at 8 mA cm-2 after 60 min electrochemical oxidation, and the rate constant was 0.101 min-1 with low energy consumption. EPR analysis and free radical sacrificing experiments showed that ⋅OH played a key role in the electrochemical oxidation. The possible oxidation pathways of CBZ were proposed through the identification of degradation products, and the main reactions may involve deamidization, oxidization, hydroxylation and ring-opening. Compared with Ti-plate/blue TiO2 NTA anode, Ti-porous/blue TiO2 NTA anode displayed excellent stability and reusability, and is promising to be used in the electrochemical oxidation of CBZ in wastewater.
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Affiliation(s)
- Weibin Huang
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Yue Huang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environment Science and Engineering, Tiangong University, Tianjin, 300387, PR China
| | - Bobin Tang
- Technical Centre, Chongqing Customs, Chongqing Engineering Technology Research Center of Import and Export Food Safety, Chongqing, 400020, PR China
| | - Yuanhang Fu
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Chunhui Guo
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China
| | - Jinzhong Zhang
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, PR China.
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4
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Li X, Lu S, Zhang G. Three-dimensional structured electrode for electrocatalytic organic wastewater purification: Design, mechanism and role. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130524. [PMID: 36502722 DOI: 10.1016/j.jhazmat.2022.130524] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Considering the growing need in decentralized water treatment, the application of electrocatalytic processes (EP) to achieve organic wastewater purification will be dominant in the near future due to high efficiency, small reactor assembly as well as the flexibility of operation and management. The catalytic performance of electrode materials determines the development of this technology. Among them, the unique three-dimensional (3D) structure electrode shows better performance than two-dimensional (2D) electrode in increasing mass transfer, enhancing adsorption and exposing more active sites. Hence, this review starts with the introduction of definition, classification, advantages and disadvantages of 3D electrode materials. Then a critical discussion on the design and construction of 3D electrode materials for organic wastewater purification application is provided. Next, the removal mechanism of organic pollutants on the surface of 3D electrode, the role of 3D structure, the design of reactor with 3D electrode, the conversion and toxicity of degradation products, electrode energy efficiency, stability and cost, are comprehensively reviewed. At last, current challenges and future perspectives for the development of 3D electrode materials are addressed. We deem that this review will provide a valuable insight into the design and application of 3D electrodes in environmental water purification.
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Affiliation(s)
- Xuechuan Li
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen (HITSZ), Shenzhen 518055, PR China
| | - Sen Lu
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen (HITSZ), Shenzhen 518055, PR China
| | - Guan Zhang
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen (HITSZ), Shenzhen 518055, PR China.
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5
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Sedov V, Martyanov A, Popovich A, Savin S, Sovyk D, Tiazhelov I, Pasternak D, Mandal S, Ralchenko V. Microporous poly- and monocrystalline diamond films produced from chemical vapor deposited diamond-germanium composites. NANOSCALE ADVANCES 2023; 5:1307-1315. [PMID: 36866268 PMCID: PMC9972548 DOI: 10.1039/d2na00688j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
We report on a novel method for porous diamond fabrication, which is based on the synthesis of diamond-germanium composite films followed by etching of the Ge component. The composites were grown by microwave plasma assisted CVD in CH4-H2-GeH4 mixtures on (100) silicon, and microcrystalline- and single-crystal diamond substrates. The structure and the phase composition of the films before and after etching were analyzed with scanning electron microscopy and Raman spectroscopy. The films revealed a bright emission of GeV color centers due to diamond doping with Ge, as evidenced by photoluminescence spectroscopy. The possible applications of the porous diamond films include thermal management, surfaces with superhydrophobic properties, chromatography, supercapacitors, etc.
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Affiliation(s)
- Vadim Sedov
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Artem Martyanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Alexey Popovich
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
- Kotel'nikov Institute of Radio Engineering and Electronics RAS Fryazino 141120 Russia
| | - Sergey Savin
- MIREA - Russian Technological University Moscow 119454 Russia
| | - Dmitry Sovyk
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Ivan Tiazhelov
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Dmitrii Pasternak
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Soumen Mandal
- School of Physics and Astronomy, Cardiff University CF24 3AA Cardiff UK
| | - Victor Ralchenko
- Prokhorov General Physics Institute of the Russian Academy of Sciences Moscow 119991 Russia
- Harbin Institute of Technology Harbin 150001 P. R. China
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6
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Response surface methodology-based fabrication of boron-doped diamond electrodes for electrochemical degradation of guaifenesin in aqueous solutions. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.05.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Jiang Y, Zhao H, Liang J, Yue L, Li T, Luo Y, Liu Q, Lu S, Asiri AM, Gong Z, Sun X. Anodic oxidation for the degradation of organic pollutants: Anode materials, operating conditions and mechanisms. A mini review. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2020.106912] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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8
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Preparation of boron-doped diamond nanospikes on porous Ti substrate for high-performance supercapacitors. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136649] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Miao D, Liu G, Wei Q, Hu N, Zheng K, Zhu C, Liu T, Zhou K, Yu Z, Ma L. Electro-activated persulfate oxidation of malachite green by boron-doped diamond (BDD) anode: effect of degradation process parameters. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:925-935. [PMID: 32541111 DOI: 10.2166/wst.2020.176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, boron-doped diamond (BDD) electro-activated persulfate was studied to decompose malachite green (MG). The degradation results indicate that the decolorization performance of MG for the BDD electro-activated persulfate (BDD-EAP) system is 3.37 times that of BDD electrochemical oxidation (BDD-EO) system, and BDD-EAP system also exhibited an enhanced total organic content (TOC) removal (2.2 times) compared with BDD-EO system. Besides, the degradation parameters such as persulfate concentration, current density, and pH were studied in detail. In a wider range of pH (2-10), the MG can be efficiently removed (>95%) in 0.02 M persulfate solution with a low current density of 1.7 mA/cm2 after 30 min. The BDD-EAP technology decomposes organic compounds without the diffusion limitation and avoids pH adjustment, which makes the EO treatment of organic wastewater more efficient and more economical.
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Affiliation(s)
- Dongtian Miao
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Guoshuai Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Qiuping Wei
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Naixiu Hu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Kuangzhi Zheng
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Chengwu Zhu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Ting Liu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Zhiming Yu
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
| | - Li Ma
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha 410083, China E-mail:
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10
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Cornejo OM, Murrieta MF, Castañeda LF, Nava JL. Characterization of the reaction environment in flow reactors fitted with BDD electrodes for use in electrochemical advanced oxidation processes: A critical review. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135373] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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11
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Optimizing the Microstructure and Corrosion Resistance of BDD Coating to Improve the Service Life of Ti/BDD Coated Electrode. MATERIALS 2019; 12:ma12193188. [PMID: 31569438 PMCID: PMC6804151 DOI: 10.3390/ma12193188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/03/2022]
Abstract
The short service life of the Ti/BDD coated electrode is the main reason that limits its practical use. In this paper, the effect of structural change on the service life was studied using Ti/BDD coated electrodes prepared with the arc plasma chemical vapor deposition (CVD) method. It was found that the microstructural defects and corrosion resistance of BDD coatings were the main factors affecting the electrode service life. By optimizing the process parameters in different deposition stages, reducing the structural defects and improving the corrosion resistance of the BDD coating were conducted successfully, which increased the service life of the Ti/BDD coated electrodes significantly. The lifetime of the Ti/BDD samples increased from 360 h to 655 h under the electrolysis condition with a current density of 0.5 A/cm2, with an increase of 82%.
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12
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Ornelas Dávila O, Lacalle Bergeron L, Ruiz Gutiérrez P, Dávila Jiménez M, Sirés I, Brillas E, Roig Navarro A, Beltrán Arandes J, Sancho Llopis J. Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile–water medium. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.05.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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He Y, Lin H, Guo Z, Zhang W, Li H, Huang W. Recent developments and advances in boron-doped diamond electrodes for electrochemical oxidation of organic pollutants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.056] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Yang N, Yu S, Macpherson JV, Einaga Y, Zhao H, Zhao G, Swain GM, Jiang X. Conductive diamond: synthesis, properties, and electrochemical applications. Chem Soc Rev 2019; 48:157-204. [DOI: 10.1039/c7cs00757d] [Citation(s) in RCA: 236] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review summarizes systematically the growth, properties, and electrochemical applications of conductive diamond.
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Affiliation(s)
- Nianjun Yang
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
| | - Siyu Yu
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
| | | | - Yasuaki Einaga
- Department of Chemistry
- Keio University
- Yokohama 223-8522
- Japan
| | - Hongying Zhao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Guohua Zhao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | | | - Xin Jiang
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
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15
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Lee CH, Lim YK, Lee ES, Lee HJ, Park HD, Lim DS. Boron-doped diamond nanowire array electrode with high mass transfer rates in flow-by operation. RSC Adv 2018; 8:11102-11108. [PMID: 35541555 PMCID: PMC9078987 DOI: 10.1039/c8ra01005f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/12/2018] [Indexed: 11/21/2022] Open
Abstract
We fabricated a boron-doped diamond nanowire (BDDNW) array electrode via soft lithography and metal-assisted chemical etching (MACE) of Si to provide a highly promoted effective surface area and increased mass transport during the electrochemical oxidation process. The effects of aligning the BDDNW on the electrochemical oxidation performance and the current efficiency of the electrode in phenol oxidation were examined. Although the effective surface area of the BDDNW array with an aligned nanowire configuration was smaller than that of the BDDNW with a random nanowire configuration, the BDDNW array electrode exhibited a higher mass transfer coefficient, resulting in a better performance in the removal of phenol. The enhanced mass transport exhibited by the BDDNW array electrode also greatly enhanced the chemical oxygen demand (COD) and current efficiency. Furthermore, because of its excellent oxidation performance, the BDDNW array electrode also exhibited much lower energy consumption during the phenol oxidation process. We fabricated a boron-doped diamond nanowire (BDDNW) array electrode via lithography and metal-assisted chemical etching (MACE) to provide a highly promoted surface area and increased mass transport during the electrochemical oxidation process.![]()
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Affiliation(s)
- Choong-Hyun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Young-Kyun Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Eung-Seok Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Hyuk-Joo Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Dae-Soon Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
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16
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Alcaide M, Taylor A, Fjorback M, Zachar V, Pennisi CP. Boron-Doped Nanocrystalline Diamond Electrodes for Neural Interfaces: In vivo Biocompatibility Evaluation. Front Neurosci 2016; 10:87. [PMID: 27013949 PMCID: PMC4781860 DOI: 10.3389/fnins.2016.00087] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 02/22/2016] [Indexed: 11/13/2022] Open
Abstract
Boron-doped nanocrystalline diamond (BDD) electrodes have recently attracted attention as materials for neural electrodes due to their superior physical and electrochemical properties, however their biocompatibility remains largely unexplored. In this work, we aim to investigate the in vivo biocompatibility of BDD electrodes in relation to conventional titanium nitride (TiN) electrodes using a rat subcutaneous implantation model. High quality BDD films were synthesized on electrodes intended for use as an implantable neurostimulation device. After implantation for 2 and 4 weeks, tissue sections adjacent to the electrodes were obtained for histological analysis. Both types of implants were contained in a thin fibrous encapsulation layer, the thickness of which decreased with time. Although the level of neovascularization around the implants was similar, BDD electrodes elicited significantly thinner fibrous capsules and a milder inflammatory reaction at both time points. These results suggest that BDD films may constitute an appropriate material to support stable performance of implantable neural electrodes over time.
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Affiliation(s)
- María Alcaide
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University Aalborg, Denmark
| | - Andrew Taylor
- Institute of Physics, Academy of Sciences of the Czech Republic v.v.iPrague, Czech Republic; Nano6 s.r.o.Kladno, Czech Republic
| | | | - Vladimir Zachar
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University Aalborg, Denmark
| | - Cristian P Pennisi
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University Aalborg, Denmark
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