Interaction between co-deposited metals during stripping voltammetry at boron-doped diamond electrodes

2005 ◽  
Vol 7 (14) ◽  
pp. 2787 ◽  
Author(s):  
John S. Foord ◽  
Kirk Eaton ◽  
Wang Hao ◽  
Alison CrossleyPresent address: Department
Keyword(s):  
Stripping Voltammetry ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped

scholarly journals A detailed EIS study of boron doped diamond electrodes decorated with gold nanoparticles for high sensitivity mercury detection

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Maeve H. S. McLaughlin ◽  
Alexander C. Pakpour-Tabrizi ◽  
Richard B. Jackman
Keyword(s):  
Electrochemical Impedance ◽  
Anodic Stripping Voltammetry ◽  
High Sensitivity ◽  
Stripping Voltammetry ◽  
Average Diameter ◽  
Open Circuit ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Mercury Detection ◽  
Boron Doped

AbstractThis work compares the electrochemical impedance response of polished and unpolished boron doped diamond (BDD) electrodes, during mercury detection measurements. For each substrate type both bare electrodes and electrodes decorated with average diameter 30 nm AuNPs were used, to investigate the role of AuNPs during mercury sensing with diamond electrodes. In square wave anodic stripping voltammetry (SWASV) measurements for mercury detection, the mercury ions in the electrolyte are deposited onto, then stripped from the diamond electrode surface. To investigate the different electrode performances during these steps, the EIS measurements were made at the deposition and stripping potentials, alongside scans at open circuit potential for comparison. The performance of the electrodes is assessed in terms of their electron transfer rate (k0). The electrodes decorated with AuNPs are shown to have lower capacitance and higher reactivity than the bare pBDD and BDD electrodes, until the mercury concentration in the electrolyte is < 500 µM, when the sp2/sp3 carbon ratio at the surface of the electrodes has a greater influence on the sensitivity for mercury detection than the presence of AuNPs.

Abrasive stripping voltammetry of silver and tin at boron-doped diamond electrodes

2002 ◽  
Vol 11 (3-6) ◽  
pp. 646-650 ◽  
Author(s):  
Arnab Chatterjee ◽  
Richard Wiltshire ◽  
Katherine B. Holt ◽  
Richard G. Compton ◽  
John S. Foord ◽  
...  
Keyword(s):  
Stripping Voltammetry ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped
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