|
Binary composites
|
| Fe3O4@TiO2 nanotubes |
Three-step process |
5 |
20.6 |
17.28 |
136
|
| Fe3O4@C yolk–shell |
Chemical reduction |
3 |
−45.8 |
10.6 |
152
|
| Fe3O4 sphere@C |
In situ polymerization |
2 |
−20.6 |
13.4 |
23
|
| Fe@NiFe2O4
|
Ball milling |
1.5 |
−27 |
11.2–18 |
153
|
| Fe@ZnFe2O4
|
Ball milling |
1.5 |
−39 |
11.2–18 |
153
|
| Fe3O4@ZrO2
|
Sol–gel |
2 |
22 |
6 |
133
|
| Fe3O4@MnO2
|
Hydrothermal |
3 |
−43.6 |
9.2 |
154
|
| Fe3O4 nanocrystal@ZnO |
Heterogeneous nucleation |
3.5 |
−22.69 |
10.08–15.97 |
155
|
| Porous Fe3O4/carbon nanorods |
Hydrothermal |
2 |
−27.9 |
14.96 |
135
|
| Fe3O4@SnO2 double shell |
Hydrothermal |
2 |
27.8 |
7 |
146
|
| Fe@Al2O3
|
Mechanosynthesis |
1.4 |
21.4 |
13.3 |
144
|
| Spinel Fe3O4@TiO2 microsphere |
Solvothermal, calcination |
2 |
23.3 |
7 |
146
|
| 3D array Fe3O4@mesoporous C |
Template assisted |
2 |
−57 |
8 |
156
|
| Fe@Al2O3/FeOx
|
Arc discharge |
2.3 |
38.46 |
6.2 |
147
|
| Fe nanoparticles@SnO2
|
Arc discharge |
2 |
−39.2 |
16.8 |
148
|
| Sr0.8La0.2Fe11.8Co0.2O19@Fe |
Chemical vapor deposition |
2.8 |
−30 |
8 |
157
|
| Fe3O4@Cu-silicate |
Sol–gel |
2 |
−23 |
7 |
147
|
| Fe3O4@PEDOT |
Two step |
2 |
−30 |
9.5 |
47
|
| Fe3O4@PPy |
Three step |
2 |
−41.9 |
13.3 |
158
|
| CeO2@Fe3O4
|
Two step solvothermal |
— |
−28.9 |
15.3 |
151
|
| Durian like Fe3O4@TiO2
|
Solvothermal |
2 |
−15.71 |
6.5 |
159
|
| Fe nanoflake@SiO2
|
Ball milling |
2.2–3.6 |
−20 |
3.8–7.3 |
145
|
| |
|
Ternary composites
|
| ZnFe2O4@graphene/TiO2
|
Hydrothermal |
2.5 |
55.6 |
3.8 |
160
|
| ZnFe2O4@SiO2/RGO |
Three step process |
3.7 |
45.8 |
7.6 |
161
|
| Fe3O4@SnO2/RGO |
Three step process |
4.5 |
45.5 |
6.4 |
162
|
| HCNT/Fe@Fe2O3
|
Two step process |
1.5 |
−45.8 |
8–9 |
163
|
| Fe3O4/BaTiO3/RGO |
Two step solvothermal |
4 |
38.2 |
5 |
164
|
| HGS@Fe3O4@RGO |
Ferrite plating method |
2.5 |
15.8 |
11 |
8
|
| C@Fe@Fe3O4
|
Template, pyrolysis |
1.5 |
40 |
5.2 |
165
|
| Ag@Fe3O4/RGO |
Solvothermal |
2 |
40.05 |
11.9 |
154
|
| G/Fe3O4@Fe |
Multi steps process |
2 |
−35.2 |
17–18 |
166
|
| Fe/Fe3O4@C |
IP |
3.9 |
29.3 |
12.6 |
167
|
| GN–pFe3O4@ZnO |
Three steps process |
5 |
−40 |
11.4 |
142
|
| Fe@SiO2/PU |
Surface initiated polymerization |
1.8 |
−21.2 |
11.3 |
51
|
| Fe@FeO/PU |
Surface initiated polymerization |
3 |
<−20 |
3.4 |
51
|
| CIP@SiO2@Mn0.6Zn0.4Fe2O4
|
Co-precipitation |
2 |
−44.24 |
11.57 |
168
|
| Fe3O4@Fe/G |
Two step process |
4.6 |
−58 |
5.2 |
169
|
| ZnFe2O4@RGO@CuS |
Two step hydrothermal |
2.2 |
−55.4 |
14.6 |
170
|
| |
|
Quaternary composites
|
| Graphene@Fe3O4@WO3@PANI |
Hydrothermal, chemical oxidation polymerization |
4 |
46.7 |
9.4 |
171
|
| G/Fe3O4@Fe/RGO |
Multi steps process |
2.5 |
−32.5 |
14–15 |
166
|
| GNP/Fe3O4@BaTiO3/MWCNTs/VMQ |
Solvothermal, solution blending |
2.6 |
−26.7–33.3 |
1–20 |
172
|
| G/Fe3O4@C@MnO2
|
Hydrothermal, thermal treatment |
1.8 |
−38.8 |
15 |
173
|
| ZnO/Fe/Fe3C/C |
Thermal decomposition, heat treatment |
1.5 |
−30.4 |
14.5 |
174
|
| Graphene@Fe3O4@SiO2@PANI |
Three steps process |
2.5 |
−40.7 |
12.5 |
121
|
| Dextran/Fe3O4@Fe/RGO |
Solvothermal, hydrothermal |
4 |
−20.26 |
4.72 |
175
|
| Graphene@Fe3O4@PANI@TiO2
|
Hydrothermal, IP |
1.6 |
−41 |
14.4 |
176
|
| Epoxy–PPy/Fe3O4–ZnO |
Co-precipitation, solution mixing |
2 |
−32.53 |
9.96 |
177
|
| Graphene@Fe3O4@PANI@TiO2
|
Hydrothermal, IP |
1.6 |
−41 |
14.4 |
176
|
| Polycarbonate/MWCNTs/Fe3O4@C |
In situ hydrothermal |
1 |
−41.3 |
17.7 |
178
|
| Graphene@Fe3O4@SiO2@NiO |
Hydrothermal, sol–gel |
1.8 |
−51.5 |
14.6 |
179
|
/dB