Author

Reduction

method

Metal substrate

Power (W)

Temperature

(˚C), [D%]

Process

time (s)

Morphology

Liu

(2005)

[15]

Second step

MARS-5

Rated 1200 W

AgNO₃

Na₃ct

A⁰ seeds

1200

100˚C

[100]

240

Ag rods ~76 nm at 240 s

spherical ~57 nm at 480 s

Blosi

(2010)

[16]

Second step

MicroSYNTH plus

Rated 2 × 800 W

Au core. C₆H₁₂O_6, H₂O, PVP

Ag core, C₆H₁₂O_6, H₂O, PVP

1600

[75]

300

Spherical Au core-shell ~30 nm

Spherical Ag core-shell ~65 nm

Rai

(2015) [17]

Second step

MARS-5

Rated 1200 W

Ag colloid

Na₂SnO₃

1200

70˚C

[75]

300 ramp to 70˚C

Hold for 36,000

Ag@SnO₂ core-shell

10 - 24 nm

Alfano (2016) [18]

Miglietta

(2018)

[19] [65]

One-pot

Anton Paar Multiwave

Rated 700 W

AgNO₃

Graphene suspension

C₂H₆O₂

700

[91.67]

120 on

10 off

For 45,000

AgNP decorated graphene sheet 2 - 4 nm thick,

Semi-spherical AgNP

20 - 30 nm

Marinoiu

(2020) [20]

One-pot

MARS-6

Rated 1 × 1000 W

Rated 1 × 800 W

HAuCl₄×4H₂O

Graphene oxide

NaBH₄

800

60˚C

80˚C

[100]

1800

AuNP supported on graphene sheet

Reyes-Blas 2020) [21] **

One-pot

MARS-6

Rated 1 × 1000 W

Rated 1 × 800 W

AgNO₃,

Cu Acetate

Ethylene glycol

PVP

1000

155˚C to 180˚C

[100]

120

Spherical AgNP ~ 10 nm

Irregular Ag-CuNP ~ 15 nm