Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions

Abstract

Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions.

Facile Synthesis Of Composition‐Controllable PtPdAuTe Nanowires As Superior Electrocatalysts For Direct Methanol Fuel Cells

“…[14] The above resultsdemonstratet hat the incorporation of Pd can improve their electrocatalytic performance towardm ethanol oxidation. [49] The stabilities of the samples were investigated through cyclic voltammetry test for 1000 cycles. After 1000 cycles, the Pt 20 Pd 20 Au 10 Te 50 NWs remain the highest current intensity (609.31 mA mg À1 ), which is about 84.06 %o ft he originalc urrent density,w hile Pt/C catalystsd rop from 198.88 to 63.37 mA mg À1 (Figure 7(A) and 7(B)).…”

Branched Pd@Rh core@shell nanocrystals with exposed Rh {100} facets: an effective electrocatalyst for hydrazine electro-oxidation

“…This optimal N 2 H 4 adsorption array on the Rh surface may be applied into the HEO catalyzed by the b-Pd@Rh-NCs. In addition, for multiple-component NM nanocatalysts, a variety of mechanisms, such as electronic effects 34 , lattice strains 35 , and synergistic effects 46 , have been proposed to explain the enhanced catalytic performance. In our case, a coupled electronic effect between Rh shell and the underlying Pd core via hybridization of Rh d states and the neighboring Pd d states could also contribute to the enhancement of electrocatalytic activity of the b-Pd@Rh-NCs (see Fig.…”

“…Although much effort was devoted to prepare shape-controlled zero-dimensional Rh polyhedral NCs with well-defined crystal facets to fulfill the requirement of various catalysis applications 24 – 33 , one dimensional NCs containing Rh component and selectively exposing well-defined facets, which represent an important class of catalysts due to access to long-range, large area facets, have not been reported thus far. At the same time, core-shell nanocatalysts are fascinating because of their unique properties, such as favorable synergistic electronic effects and unusual crystallographic structure 34 , 35 . Herein, we successfully synthesized b-Pd@Rh-NCs with exposed Rh {100} facets on their surface using the pre-synthesized b-Pd-NCs as the core template.…”

Methanol dissociation and oxidation on single Fe atom supported on graphitic carbon nitride

“…Theoretical studies have found that many metals have catalytic properties for methanol oxidation, which has attracted great interest, such as Sn, Cu, Ni, Mo, etc. In recent years, many researchers have been working on the application of platinum‐based bimetallic alloy catalysts in DMFCs, such as Pt–Pd, Pt–Ag, Pt–Ru, Pt–Fe, Pt–Sn, Pt–Au, Pt–Co, Pt–Ni and Pt–Mo . The results show that these alloy catalysts have good effect on the decomposition and oxidation of methanol, while reducing the cost of raw materials and improving the tolerance towards CO poisoning .…”