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. 2021 Feb 15;6(8):5846–5855. doi: 10.1021/acsomega.0c06268

Table 2. The Actual Metal Loadings of Pt and Rh of PtxRhy@HMSNs by ICP-OES.

      metal loadings (wt %)
samplesa nominal Pt/Rh Pt/Rh by ICP-OES Pt Rh
Pt@HMSNs N/A N/A 3.8 N/A
Pt11.1Rh1@HMSNs 3/1 11.1/1 5.9 0.28
Pt2.5Rh1@HMSNs 1/1 2.5/1 1.7 0.35
Pt0.77Rh1@HMSNs 1/3 0.77/1 1.2 0.82
Rh@HMSNs N/A N/A N/A 1.6
a

All materials were calcined at 500 °C and subsequently reduced at 200 °C.