Flexible synthesis of Au@Pd core–shell mesoporous nanoflowers for efficient methanol oxidation

Abstract

We have reported flexible synthesis of Au@Pd core–shell mesoporous nanoflowers for the methanol oxidation reaction with excellent performance.

Recent progress of Bi-based electrocatalysts for electrocatalytic CO2 reduction

“…Core-shell structures have shown promise in the field of electrocatalysis, due to their high surface areas, unique lattice effects, effective charge transportabilities, well-tailored electronic structures, and excellent structural stabilities. [89][90][91][92] Despite the synthesis of an Bi-relevant core-shell electrocata- lyst for CO 2 RR applications being less-frequently reported, 93 BiSn core-shell electrocatalysts have recently drawn immense attention and also have been prepared with different geometries and morphologies to investigate their electrocatalytic CO 2 RR behaviors.…”

PtIr Alloy Nanoparticles Anchored on CoSe–NC Nanospheres for Efficient Methanol Oxidation

“…Carbon-neutral fuels with the characteristics of renewable and low-emission nature have received increasing attention recently, as driven by the rising environmental pollution and energy crises from the usage of fossil fuels. − Among the carbon-neutral fuels, C1 liquid fuel of methanol, with the advantages of low price, high energy density, and plentiful sources, has been employed in energy conversion systems for hydrogen generation or fuel cell techniques. − To realize this sustainable carbon cycle with the interconversion of chemical and electrical energy, high-efficiency and stable catalysts are required to drive the methanol oxidation reaction (MOR). Currently, the noble metal nanomaterials, such as Pd, Rh, and Pt, exhibit good performance in methanol oxidation, while the Pt-based catalysts are still the state-of-the-art anodic catalyst to catalyze the complicated MOR process. − However, the inevitable poisoning effect of CO-poisoning intermediates for these catalysts greatly compromises the electrocatalytic performance. − Therefore, attention has been directed to catalyst development in terms of novel catalyst design and fabrication, catalytic performance boosting, anti-poisoning ability improvement, reducing the noble metal catalyst loading, etc., to promote catalytic efficiency. − …”

Facile Preparation of Electroactive Au@Ru Cups for Sensitive Detection of Bisphenol A

“…In comparison to alloy NPs, core–shell nanocomposites by the deposition of a thin Ru layer on the outside of NPs could effectively expose more electroactive Ru sites for the generation of strong electro-oxidization behaviors . Au nanomaterials with different structures of spherical, triangular, floral, square, and rods have been widely prepared and have shown good stability. ,, Alternatively, Au cups were not only easily prepared but also possessed large specific surface areas attributed to the tunable opening rims, , which enabled the in-site deposition of more electroactive Ru dots on the surface of Au cups. Due to the harsh synthesis condition of Ru-based nanostructures, it is still a challenge to develop a simple and feasible method for the fabrication of core–shell structured Au@Ru cups in water phase conditions.…”