Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation

Abstract

The catalytic performance of metal nanoparticles (NPs), including activity, selectivity, and durability, depends on their chemical composition, shape and structure at the molecular level, where reaction rates are determined by the facet exposed.

A Comprehensive Review of Bimetallic Nanoparticle–Graphene Oxide and Bimetallic Nanoparticle–Metal–Organic Framework Nanocomposites as Photo-, Electro-, and Photoelectrocatalysts for Hydrogen Evolution Reaction

“…The interaction can promote mass transport phenomena and charge transfer processes at the catalyst surface. These effects can modulate the kinetics of the HER and affect the availability of active sites for hydrogen evolution [229,230].…”

Intermetallic Pd–Sn Nanoparticles on Supports with High Metal Loading Facilitated by the Metal–Metal Bond for High-Performance Cooperative Catalysis

“…In the case of the bimetallic Pd–Sn nanocatalyst, sequential wet impregnation followed by thermal decomposition/reduction and chemical reduction in the presence/absence of the capping agent/support, dual confinement, and electrospinning strategy has been utilized previously. Herein, we disclosed an effective synthetic strategy (Figure ) to produce highly dispersed intermetallic Pd–Sn nanoparticles with high catalyst loading on graphitic carbon nitride (g-C 3 N 4 ) supports by using in-situ/ex-situ-generated homogeneous bimetallic complexes [LPdCl­(SnCl 3 ), L = 2,2′-bipyridine, 1,4-cyclooctadiene, and acetonitrile]. The catalytic activity of intermetallic Pd–Sn nanoparticles was tested in catalytic/photocatalytic dehydrogenation, hydrogenation, tandem (de)­hydrogenation, and amidation reaction .…”

Developing Benign Ni/g-C3N4 Catalysts for CO2 Hydrogenation: Activity and Toxicity Study

“…8 , 14 , 17 , 22 − 25 However, non-noble-metal small clusters or single-atom catalysts (SACs) for the hydrogenation of CO 2 to gas or liquid products, including fuels/drop-in fuels, remain rare. 5 , 26 , 27 For CO 2 methanation reactions, Ni-based catalysts (usually up to 20–30% Ni content) are usually applied in real-scale industrial lines because of their good catalytic performance and for economic reasons. 14 However, their application potential is limited, both at high and low temperatures, because of catalyst coking and Ni nanoparticle (NPs) sintering and poor activity, respectively.…”

“…Current research activities focus on a new catalyst preparation methodology that applies solvent-free protocols ideally, atom economy principles, new catalyst compositions, catalyst stability, and durability. Both noble-metal-based catalysts, i.e., Pt, Rh, Ru, and Ir, and transition-metal monometallic catalysts, i.e., Ni and Ni–V bimetallic systems, were found to be effective for the CO 2 valorization process. ,,,− However, non-noble-metal small clusters or single-atom catalysts (SACs) for the hydrogenation of CO 2 to gas or liquid products, including fuels/drop-in fuels, remain rare. ,, For CO 2 methanation reactions, Ni-based catalysts (usually up to 20–30% Ni content) are usually applied in real-scale industrial lines because of their good catalytic performance and for economic reasons . However, their application potential is limited, both at high and low temperatures, because of catalyst coking and Ni nanoparticle (NPs) sintering and poor activity, respectively .…”