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. 2015 Nov 6;5:16263. doi: 10.1038/srep16263

Figure 4. Hydrogen evolution reactions performed at inert-catalytic electrode (ITO) in electrolyte with various pH values.

Figure 4

LSV curves recorded on Pt electrode in (a) 1 M H2SO4 (pH −0.3), (b) 0.2 M KCl (pH 7), and (c) 2 M KOH (pH 14.3). (d) The corresponding Tafel plots at pH values of 0.3, 7.0 and 14.3. Black line: electrolyte solution based on DI water. Pink line: electrolyte solution based on HRHBW water.