Triangular AgAu@Pt core–shell nanoframes with a dendritic Pt shell and enhanced electrocatalytic performance toward the methanol oxidation reaction

Abstract

Triangular AgAu@Pt nanoframes with a dendritic Pt shell were synthesized by employing Ag nanoprisms as sacrificial templates. Due to the unique frame-like nanostructure and ternary components, the AgAu@Pt nanoframes exhibit impressive electrocatalytic performance toward the methanol oxidation reaction with much higher activity, and better anti-poisoning capability than commercial Pt/C catalysts.

Bimetallic Pd96Fe4 nanodendrites embedded in graphitic carbon nanosheets as highly efficient anode electrocatalysts

“…22 Particularly, Pd or Pt-based core-shell-type noble metal nanostructures have been widely employed as efficient anode catalysts for the alcohol oxidation reaction. [23][24][25][26][27][28][29][30][31] However, fabrication of such nanostructures involves complicated multistep processes, which make the process difficult to scale up. Moreover, these Pd-based anode electrocatalysts still suffer from low activity and high cost, which endorses the need for a facile strategy to produce advanced electrocatalysts.…”

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

“…Owing to the outstanding performance of dendritic nanostructures, several researchers have improved the activity of catalysts by modifying the surface of other nanostructures into dendritic‐frame‐like nanocubes or triangular dendritic nanoframes . The results show that the electrochemical performance of these catalysts is improved owing to their increased surface areas and active sites.…”

Ultralong Ternary PtRuTe Mesoporous Nanotubes Fabricated by Micelle Assembly with a Self‐Sacrificial Template

“…Direct methanol fuel cells (DMFCs) have attracted great attention for a long time because of advantages in environmental protection and energy conversion. The methanol oxidation reaction (MOR) is crucial to DMFCs, and developing high‐efficiency, stabilized, and economical electrocatalysts for the MOR is important for the broad deployment and widespread commercialization of DMFCs . It is known that platinum nanomaterials are significant catalysts, owing to their outstanding performance in catalyzing the MOR .…”

“…The methanol oxidation reaction (MOR) is crucial to DMFCs, and developing high-efficiency,s tabilized, and economical electrocatalysts for the MOR is importantf or the broad deploymenta nd widespread commercialization of DMFCs. [1][2][3][4][5][6] It is known that platinum nanomaterials are significant catalysts, owing to their outstandingperformance in catalyzing the MOR. [7][8][9][10][11][12][13][14] However,t he high cost, low utilization, and CO poisoning of Pt materials hinder their development.…”