Table 1.
Determined sizes of MFx-NPs in MFx@TRGO samples.a
| precursor | identified phase of MFx-NPsb on TRGO | NP diameter from PXRD [nm]c | particle diameter from TEM [nm]d,e | particle diameter without TRGO from TEM [nm]d |
| TRGO-300 | ||||
| Fe(AMD)2 | FeF2 | 8–30 | 26 ± 7 102 ± 41f |
65 ± 18g |
| Co(AMD)2 | —h | 16–31 | –h | 43 ± 11g |
| Pr(AMD)3 | PrF3 | 9–17 | 15 ± 4 | 11 ± 6g |
| Eu(dpm)3 | EuF3 | 15–21 | 14 ± 6 | 21 ± 7i |
| TRGO-400 | ||||
| Fe(AMD)2 | FeF2 | 9–20 | 30 ± 10 | 65 ± 18g |
| Co(AMD)2 | —h | 16–31 | —h | 43 ± 11g |
| Pr(AMD)3 | PrF3 | 10–14 | 10 ± 3 | 11 ± 6g |
| Eu(dpm)3 | EuF3 | 13–21 | 14 ± 4 | 21 ± 7i |
| TRGO-750 | ||||
| Fe(AMD)2 | FeF2 | 10–26 | 6 ± 2 | 65 ± 18g |
| Co(AMD)2 | —h | 21–38 | —h | 43 ± 11g |
| Pr(AMD)3 | PrF3 | 8–16 | 17 ± 4 | 11 ± 6g |
| Eu(dpm)3 | EuF3 | 14–22 | 18 ± 4 | 21 ± 7i |
| TRGO-SH | ||||
| Fe(AMD)2 | FeF2 | 16-28 | 6 ± 2 | 65 ± 18g |
| Co(AMD)2 | CoF2 | —j | 9 ± 2 | 43 ± 11g |
| Pr(AMD)3 | PrF3 | 14-21 | 6 ± 2 | 11 ± 6g |
| Eu(dpm)3 | EuF3 | 13-23 | 15 ± 5 | 21 ± 7i |
a0.5 wt % MFx-NP/[BMIm][BF4] dispersions obtained by microwave-assisted heating for 10 min for Co, 15 min for Fe, Pr and Eu precursors; bthe phases of the nanoparticles were identified from PXRD; cdiameter calculated from Scherrer equation, Scherrer factor = 1; anisotropic defects were not considered; a range is given for diameter values derived from different reflections; daverage diameter and standard deviation σ; esee Experimental section for TEM measurement conditions; at least 50 particles were used for the analysis; fwidth and length of the rods; gdata from [63]; hno separated nanoparticles; idata from [76]; jno reflections in PXRD.