CN 41-1243/TG ISSN 1006-852X
Volume 44 Issue 2
Apr.  2024
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Article Contents
LIU Dianhong, YIN Zhao, CHEN Fenglei, MA Li, LI Jing, WEI Qiuping. Effect of boron concentration and gas pressure on the electrochemical oxidation performance changes of HFCVD diamond films on Ti substrates[J]. Diamond & Abrasives Engineering, 2024, 44(2): 151-160. doi: 10.13394/j.cnki.jgszz.2023.0071
Citation: LIU Dianhong, YIN Zhao, CHEN Fenglei, MA Li, LI Jing, WEI Qiuping. Effect of boron concentration and gas pressure on the electrochemical oxidation performance changes of HFCVD diamond films on Ti substrates[J]. Diamond & Abrasives Engineering, 2024, 44(2): 151-160. doi: 10.13394/j.cnki.jgszz.2023.0071

Effect of boron concentration and gas pressure on the electrochemical oxidation performance changes of HFCVD diamond films on Ti substrates

doi: 10.13394/j.cnki.jgszz.2023.0071
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  • Received Date: 2023-03-23
  • Accepted Date: 2023-11-07
  • Rev Recd Date: 2023-09-21
  • Available Online: 2023-11-07
  • The effects of boron concentration and deposition pressure on the microstructure and electrochemical oxidation performance of Ti/BDD electrodes during HFCVD growth were systematically investigated. The electrode's surface morphology, composition, and electrochemical performance were characterized by scanning electron microscope (SEM), Raman spectroscopy, ultraviolet spectrophotometry, and an electrochemical workstation. Tetracycline served as a simulated pollutant to evaluate the electrochemical oxidation degradation performance of BDD electrodes fabricated with different boron concentrations and deposition pressures. As air pressure increases, the grain quality of the diamond gradually decreases, yet boron atom doping enhances the grain quality of the diamond. Under high boron concentration and low pressure conditions, the boron atom concentration on the diamond film's surface is elevated. BDD electrodes with larger grain sizes and higher boron atom concentrations, prepared under these conditions, exhibit superior electrochemical performance, increased degradation efficiency, and reduced degradation energy consumption.

     

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