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The Reference Electrode Dilemma in Energy Conversion Electrocatalysis: “Right vs Okay vs Wrong” by Sengeni Anantharaj; Prince JJ. Sagayaraj; Manova Santhosh Yesupatham; Roshini Arulraj; Karthik Eswaran; Karthikeyan Sekar; Suguru Noda is a Engineering article available to read on EtoBox.
What is The Reference Electrode Dilemma in Energy Conversion Electrocatalysis: “Right vs Okay vs Wrong” about?
In this study, to show the extent to which the use of any reference electrode (RE) at any pH could affect the electrochemical data, Hg/HgO, 1.0 M KOH (MMO, E ref = 98 mV), Hg/Hg 2 SO 4 , sat. K 2 SO 4 (MMS, E ref = 640 mV), Ag/AgCl, 3.0 M NaCl (SSC, E ref = 210 mV), and Hg/Hg 2 Cl 2 , sat. KCl (SCE, E ref = 241 mV) standard REs destined for use in alkaline, acidic, and neutral waters, respectively, are taken to monitor the hydrogen evolution reaction (HER) onset potential of Pt in 0.5 M H 2 SO 4 , 1.0 M KOH, and 1.0 M PBS (phosphate buffer solution). The standard potential of the reference electrode can be calculated using the Nernst equation since the HER onset of Pt is known against the reversible hydrogen electrode (RHE) (i.e., 0.0 V vs. RHE). Any change that one might see with the HER onset of Pt while using an inappropriate RE at an inappropriate pH could be attributed to the pH gradient between the RE compartment and the cell. Our results revealed that when an inappropriate RE was used at an inappropriate pH, the standard potential of the RE was shifted either negatively or positively depending on the combination of RE and pH. This shift ranged from +78 mV to -74 mV at their
Who reads The Reference Electrode Dilemma in Energy Conversion Electrocatalysis: “Right vs Okay vs Wrong”?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Sengeni Anantharaj; Prince JJ. Sagayaraj; Manova Santhosh Yesupatham; Roshini Arulraj; Karthik Eswaran; Karthikeyan Sekar; Suguru Noda
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)