Synthesis of graphene-supported monodisperse AuPd bimetallic nanoparticles for electrochemical oxidation of methanol

Abstract

Hong-Jun(肖红君) a)b) , Shen Cheng-Min(申承民) a)b) , Shi Xue-Zhao(时雪钊) a) , Yang Su-Dong(杨苏东) a) , Tian Yuan(田 园) a)b) , Lin Shao-Xiong(林少雄) a) , and Gao Hong-Jun(高鸿钧) a)b) † a)

Controlled Synthesis of Intermetallic Au2Bi Nanocrystals and Au2Bi/Bi Hetero‐Nanocrystals with Promoted Electrocatalytic CO2 Reduction Properties

“…On the contrary, as revealed by time-sequential XRD patterns and TEM images (Figures 3a-c and S3, Supporting Information), small Au NPs were formed once the Au precursor (0.02 mmol, Au/Bi = 1 : 1) was added to the hot mixture due to the rapid reduction of Au III to Au 0 by AA and OAm. [29][30][31] Once formed, such Au NPs could act as heterogeneous nucleation centers to lower the kinetic barriers to reduce Bi 3 + species. Afterwards, Au NPs were gradually depleted, and Au 2 Bi NPs emerged as the reaction continued (Figure 3d,e).…”

Structural and thermal stabilities of Au@Ag core-shell nanoparticles and their arrays: A molecular dynamics simulation*

“…Bimetallic nanoparticles (BNPs), composed of two different metal elements, have attracted great interest due to their novel electronic, [1] optical, [2][3][4] catalytic [4][5][6][7] and photocatalytic [4] properties. Depending on the synthesis procedures, the configuration of BNPs can be alloyed, [8][9][10][11][12][13] coreshelled, [11,[14][15][16] etc. For the core-shell BNPs (CSNPs), one metal element forms a core and the other forms a concentric shell, while for the alloyed ones, the distribution of the two types of atoms is discrete.…”