High performance of PtCu@TiO₂nanocatalysts toward methanol oxidation reaction: from synthesis to molecular picture insight

Abstract

Computed adhesion energies of pure and bimetallic PtCu clusters (regular alloy, phase-separated, core–shell) on TiO2 anatase support.

Dewetting of PtCu Nanoalloys on TiO2 Nanocavities Provides a Synergistic Photocatalytic Enhancement for Efficient H2 Evolution

“…[11][12][13][14] The catalytic improvement, in general, is associated to the atomic structure of the alloy catalyst and can be ascribed to electronic, geometric, or synergistic effects. 12 Bimetallic catalysts can also block undesired reaction paths or prevent poisoning from by-products. 15,16 In this context, PtCu alloys have attracted large attention as they can provide a remarkable activity enhancement compared to Pt alone in different catalytic processes such as oxygen reduction, 17 CO2 conversion, 18 or NO reduction.…”

“…In addition, bimetallic PtCu nanoparticles or PtCu alloys demonstrated a superior catalytic activity and tolerance for the electrochemical oxidation of light molecules, such as methanol or formic acid. 12,[20][21][22] Combinations of noble metals (e.g. Pt or Au) and Cu catalysts have been explored also in photocatalysis.…”

“…PtCu NPs can be produced by different methods including photodeposition, 26 galvanic replacement, 12 impregnation, 27 chemical reduction, 28 or colloidal chemistry. 29 In a recent work, 30 we reported on a straightforward "sputtering− dewetting−alloying" approach to produce bimetallic (e.g., NiCu) nanoparticles directly on photocatalytic TiO 2 surfaces.…”

Review and Development of Anode Electrocatalyst Carriers for Direct Methanol Fuel Cell

“…However, carbon carriers are subject to corrosion in the reaction medium, leading to the reduction of pore area and agglomeration of active components, which affect their large-scale applications. [70,71] Therefore, it is necessary to explore alternative substances based on noncarbon carriers. Among the noncarbon carriers, metal oxide carriers possess higher stability than carbon carriers in oxidizing environments and strong interactions with active components.…”

Tiny Ruthenium‐Cobalt‐Cobalt Hydroxide Nanoparticles Supported on Graphene for Efficiently Catalyzing Naphthalene Complete Hydrogenation

“…Co/Co(OH) 2 /G was synthesized via chemical reduction strategy with hydrazine hydrate as reducing agent The Ru/Co/Co(OH) 2 /G sample was obtained by galvanic displacement reaction method . X‐ray diffraction (XRD) measurements for the Co/Co(OH) 2 /G and Ru/Co/Co(OH) 2 /G catalysts were carried out to gain the crystallite phase of Ru or Co‐containing and the results are given in Figure .…”