Table 1 The peak position, full width at half maximum (β½), and calculated crystal size for Co–Ni/Fe3O4@ MMSHS nanocatalyst. ʎ = 0.154 nm, K = 0.94.

From: Cobalt–nickel supported on magnetic mesoporous silica hollow spheres for efficient synthesis of tetrazole derivatives under solvent-free conditions

h k l

220

311

400

422

511

440

Peak position 2θ (°)

30.4804

35.8731

43.5101

53.8529

57.5047

63.1199

FWHM β (°)

0.8266

0.7085

0.9446

0.9446

0.3542

0.7085

Size (nm)

10.41

12.31

9.46

9.86

26.73

13.75

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