Atomically precise alloy nanoclusters: syntheses, structures, and properties

Abstract

Atomically precise alloy nanoclusters have been continuously appealing to scientists owing to their tunable electronic/geometric structures and enriched physicochemical properties.

Atomically Precise Alloy Nanoclusters

“…The syntheses of Au nÀx M x (SR) m alloy NCs containing Ir (group IX), Pt or Pd (group X), Ag or Cu (group XI), and Hg or Cd (groupXII) as heteroatoms have been reported. [66,69,101,112] Some typical examples of research on Au nÀx M x (SR) m alloy NCs whose geometrical structures have been determined (partially estimated in some cases)are introduced in this section. Specifically,t he chemical composition, geometrical structure, elec- Scheme2.Phosphine structures introduced in this review:( 1) triphenylphosphine (PPh 3 ), (2) diphenyl-2-phosphinopyridine (PPh 2 Py), (3) bis(diphenylphosphino)methane( DPPM), and (4) 1,3-bis(diphenylphosphino)propane (Dppp).…”

“…The syntheses of Au n − x M x (SR) m alloy NCs containing Ir (group IX), Pt or Pd (group X), Ag or Cu (group XI), and Hg or Cd (group XII) as heteroatoms have been reported [66, 69, 101, 112] . Some typical examples of research on Au n − x M x (SR) m alloy NCs whose geometrical structures have been determined (partially estimated in some cases) are introduced in this section.…”

Tailoring silver nanoclusters via doping: advances and opportunities

“…The concept of doping emerging in the fields of metal nanoclusters have been clarified in previous reviews. [8][9][10] Herein, doped Ag NCs is identified as MxAgn-x(SR)m (M= Au, Pt, Pd, and Cu etc.). The synthesis methods can be classified into four categories: 1.…”

“…Moreover, doping endows Ag NCs better thermal stability. [7][8][9][10][11][12] To understand the fundamental mechanism for rational design of functional doped Ag NCs, the compositions and structures of nanoclusters have been investigated. The study of doped nanoclusters relies on their parent nanoclusters because they bear homologous structures.…”

“…Many promising metal atoms have been chosen and proved to be competent in tailoring Ag NCs, such as Au, Pt, Pd, and Cu etc., and several representative species of MxAgn-x NCs have been identified. [8][9][10][11][12][13][14][15] Although many important advances have been made for the gold nanoclusters, silver and their doped NCs are still not well understood. It is challenging to synthesize stable Ag NCs due to the easy oxidation of Ag under zero-valent state.…”