Highly selective synthesis of multicarbon compounds by carbon dioxide hydrogenation over Pt nanocrystals anchoring Ru clusters

Abstract

Carbon supported Pt nanocrystals anchoring small Ru nanoclusters (Ru-co-Pt/C) could catalyze CO2 hydrogenation to form multi-carbon compounds (C2–C26) with an extraordinary C2+ selectivity of 90.1% at 130 °C.

A Robust Electrocatalyst for Oxygen Reduction Reaction Assembled with Pt Nanoclusters and a Melem‐Modified Carbon Support

“…The theoretical calculation study based on a model of metal NC catalyst provides an effective strategy to give insights into the catalytic properties. [ 15 ]…”

Metal Nanoclusters Synthesized in Alkaline Ethylene Glycol: Mechanism and Application

“…Unprotected metal nanoclusters provide tractable tools for experimentally studying the effects of individual factors such as the metal composition, size, support, and the surface modification groups on the catalytic properties of metal nanocluster catalysts by assembling structure-controllable catalysts with unprotected metal or alloy nanoclusters that act as the building blocks [ 21 , 45 , 112 , 113 , 114 , 115 ]. A theoretical calculation based on the experimental results could further deepen the understanding of the relationship between the structure and performance of the catalytic sites of metal nanocluster catalysts [ 55 , 116 ]. Based on the relevant experimental and theoretical research results described in this section, in this paper, we propose a principle of the influence of carriers, ligands and modifiers in metal nanocluster catalysts on the catalytic properties.…”

“…The unprotected metal nanoclusters prepared based on the alkaline EG method have been widely applied in the fabrication of metal nanocluster-based catalysts with excellent catalytic properties [ 53 , 54 , 55 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 ].…”

“…This encouraged us to improve the selectivity of multi-carbon compounds in the products by regulating the distribution of Pt and Ru elements in the catalyst. Pt nanocrystals anchoring small Ru clusters on carbon (Ru- co -Pt/C) [ 55 ] were prepared using unprotected Pt and Ru nanoclusters as starting materials through the Pt nanocluster catalyzing atomization of Ru nanoclusters and a surface growth process at 130 °C in a mixture of water and cyclohexane in a gaseous mixture of CO 2 and H 2 and characterized by HRTEM, EDX, EXAFS and XPS. Carbon-supported Pt or Ru nanoclusters were prepared by the immobilization of the Pt or Ru nanoclusters on a carbon support, and these were used as catalysts for comparison.…”

“…In the past two decades, this strategy has been widely applied and developed, and important achievements have been made in the preparation of structurally controllable catalysts and the exploration of the relationship between structure and catalytic performance [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Based on the unprotected metal and alloy nanoclusters, catalysts with a high activity level, high selectivity and excellent stability for a variety of important chemical reactions have been developed [ 14 , 16 , 22 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ].…”