Fig. 2: Structural characterizations of IrO2@TaB2.
a XRD patterns, (b) Ta4f XPS spectra, (c) B1s XPS spectra, and (d) Ir4f XPS spectra of IrO2@TaB2 samples with different IrO2 loading. e Ir L1-edge XANES spectra of 16 wt% IrO2@TaB2 and IrO2. f Fourier transforms of the EXAFS spectra of 16 wt% IrO2@TaB2 and IrO2.
