Fig. 4 | Nature Communications

Fig. 4

From: Location determination of metal nanoparticles relative to a metal-organic framework

Fig. 4

129Xe NMR and positron lifetime characterizations. a Temperature-dependent hyperpolarized 129Xe NMR spectra for MIL-101, Pt@MIL-101, and PtCu@MIL-101. The measurements were performed in the range of 193–293 K. b The 129Xe chemical shift difference for MIL-101, Pt@MIL-101, and Pt1Cu2@MIL-101 at different temperatures. c Hyperpolarized 129Xe NMR spectra performed at 293 K for MIL-101, and Pt1Cu2@MIL-101 with various metal percentages. d Positron lifetime spectra for MIL-101 and 0.5 wt% Pt1Cu2@MIL-101 based on positron annihilation experiments

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