The synthesis of metallic NPs with different influential factors on their size and shape.

Entry	Metallic NPs	Synthesis approach	Influential factors (stabilizing/capping agent, reducing agents, precursors concentration, temperature, pH, and time)	Shape and size	Ref.
1	Au–Pt bimetallic NPs	Concurrent reduction	P85 block copolymer, ascorbic acid, HAuCl4·3H2O (60 mM), H2PtCl6·6H2O (60 mM), room temperature, 50 seconds	Round/3–5 nm	169
2	Ag–Pd bimetallic NPs	Template approach	PVP, ascorbic acid, Na2PdCl4 (1 mM), syringe pump injection rate 1.2 mL h−1, environmental conditions	Triangular/78 nm	170
3	Pt–Au–Ru trimetallic NPs	Ultrasonic-assisted approach	PVP, ascorbic acid, RuCl3 (19.3 mM), HAuCl4 (24.3 mM) H2PtCl6 (7.7 mM), 1 h	Spherical/77 nm	171
4	Au–Ag bimetallic NPs	Concurrent reduction	CS, acetic acid, ascorbic acid HAuCl4·3H2O (0.01 M), AgNO3 (0.01 M), reaction applied overnight	Meso-flowers/100–1000 nm	172
5	Au–Pt–Pd trimetallic NPs	Concurrent reduction	NaBH4, HAuCl4 (1 M), H2PtCl6 (1 M), H2PdCl4 (10 mM), reaction applied overnight	Irregular/80–100 nm	173
6	Au–Pt–Ag trimetallic nanofluid	Microwave irradiation	Trisodium citrate, HAuCl4·3H2O (0.1 wt%), H2PtCl6·xH2O (0.1 wt%), AgNO3 (0.1 wt%), microwave heat treatment for 4 minutes	Dark nano-fluids/23 nm	174
7	Au–Ag bimetallic NPs	Laser-assisted approach	Au nano twins by pulsed laser ablation, AgNO3 (0.05 M), laser ablation of Au plate in distilled water	Worm-shape nano chains/6.2 nm	175
8	Pt–Au–Ag trimetallic NPs	Seed-assisted growth	PVP, citric acid, Ag seeds, H2PtCl6 (10 mM), HAuCl4 (10 mM), 90 °C, 3 h	Spherical/40–50 nm	176
9	Au–Ag bimetallic NPs	Seed-assisted growth	CTAB, sodium oleate, NaBH4, HAuCl4, AgNO3, 30 °C, 12 h	Corn-shape/100–150 nm	177
10	Ag–Au bimetallic NPs	Green-concurrent reduction	Aqueous extract of golden rod leaves, AgNO3 (1 mM), HAuCl4·xH2O (1 mM), 70–80 °C, 1 h	Spherical/15 nm	178