Table 3 Theoretical (feeding content) and experimental (by EDX) metal atom ratios of nanohybrids and surface metal atom ratios in nanohybrids by XPS

From: A General Strategy for Nanohybrids Synthesis via Coupled Competitive Reactions Controlled in a Hybrid Process

Method

Sample

Size, nm

Theoretical atomic ratio

Atomic ratio of whole particles by EDX

Top surface atomic ratio by XPS

All NMP-phased reaction systems

CoZn@Zn(1-x)CoxOy

3.5 ± 0.3

Co/Zn: 21/79

Co/Zn: 43/57

Co/Zn: 31/69

 

FeAl@Al(1-x)FexOy

4.8 ± 0.3

Fe/Al: 76/24

Fe/Al: 82/18

Fe/Al: 34/66

Aqueous-phased metal salt reaction systems

CoZn@Zn(1-x)CoxOy

4.4 ± 0.4

Co/Zn: 77/23

Co/Zn: 23/77

Co/Zn: 20/80

 

AgAl@Al(1-x)AgxOy

3.7 ± 0.3

Ag/Al: 71/29

Ag/Al: 38/62

Ag/Al: 5/95

 

AuZn@Zn(1-x)AuxOy

3.6 ± 0.2

Au/Zn: 37/64

Au/Zn: 18/82

Au/Zn: 5/95

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