Fig. 3: HER performance. | Nature Communications

Fig. 3: HER performance.

From: Ordered clustering of single atomic Te vacancies in atomically thin PtTe2 promotes hydrogen evolution catalysis

Fig. 3

a LSV curves of bulk PtTe2 crystals, PtTe2 NSs, PtTe2-200 NSs, PtTe2-400 NSs, PtTe2-600 NSs, and Pt/C recorded in 1.0 M KOH at a scan rate of 5 mV s−1, with 80 % iR compensation. b The corresponding Tafel plots. c Comparison of overpotential at 10 mA cm−2 and J0 ECSA. d The potential-dependent TOF curves for PtTe2 NSs, PtTe2-200 NSs, PtTe2-400 NSs, and PtTe2-600 NSs. e Performance comparison of PtTe2-600 NSs with other reported noble metal-based HER catalysts with high activity in 1.0 M KOH. The detailed information of these catalysts was listed in Supplementary Table 2. f Nyquist plots collected at an overpotential of 100 mV. g Comparison of LSV curves for PtTe2-600 NSs and Pt/C at large current density. h LSV curves of PtTe2-600 NSs and Pt/C before and after 20,000 cycles of accelerated CV test. i Chronopotentiometry measurement recorded at 200 mA cm−2 for 24 h without iR compensation.

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