Metal–support interactions for heterogeneous catalysis: mechanisms, characterization techniques and applications

Abstract

Metal-support interaction (MSI) has become one of the research directions of great interest in heterogeneous catalysis area, MSI is sensational significance for the designing of supported metal catalysts to improve...

Insight into the Dynamic Evolution of Supported Metal Catalysts by In Situ/Operando Techniques and Theoretical Simulations

“…In general, single or multielement metals can be dispersed and stabilized on the metal oxides support by strong metal–support interaction (SIMI), which can improve the utilization efficiency of active metal species and thereby modulate the catalytic activity, selectivity, and stability of catalysts . The catalytic reaction usually occurs at the surface of the active metal species or at the interface between the active metal species and the supporter accompanied . Because the dynamic evolution of active sites on the catalyst is easily observed, a supported metal catalyst is used as a typical model to explore dynamic catalytic mechanisms.…”

“…6 The catalytic reaction usually occurs at the surface of the active metal species or at the interface between the active metal species and the supporter accompanied. 7 Because the dynamic evolution of active sites on the catalyst is easily observed, a supported metal catalyst is used as a typical model to explore dynamic catalytic mechanisms. How to observe and identify the real active sites during the reaction conditions, and reveal the catalytic mechanism is desired.…”

Flexible direct synthesis of phosphorus-rich CoP3 on carbon black and its examination in hydrogen evolution electrocatalysis

“…35–39 Catalyst–support interactions are reported to impact interfacial charge transfer that can result in more effective electrocatalytic activity. 40–42 Carbon black ( e.g. , Vulcan XC-72) is a commonly employed high surface areas support in electrochemical studies and is used to disperse and stabilize platinum nanoparticles, to prevent agglomeration, and to reduce metal usage.…”

Gram-Scale Synthesis of Heteroatom-Doped Carbon-Supported Pt Nanoparticles as Electrocatalysts for Hydrogen Evolution and Oxygen Reduction Reactions

“…The reconstruction of the Pt NP structure or surface modification of carbon supports can be expected to strengthen metal−support interaction (MSI). 18,19 However, nanostructure reconstruction of Pt NPs often requires complex and high-cost processes and the controllability is also poor. 20,21 In contrast, carbon support modification is easier to be achieved.…”

“…The reconstruction of the Pt NP structure or surface modification of carbon supports can be expected to strengthen metal–support interaction (MSI). , However, nanostructure reconstruction of Pt NPs often requires complex and high-cost processes and the controllability is also poor. , In contrast, carbon support modification is easier to be achieved. The doping of heteroatoms (such as Fe, Co, Ni, N, P, S) to carbon supports can effectively activate the inert carbon surface by introducing additional electronic states. − In view of this, transition metal (M) with more functional electronic states and highly electronegative N can be coembedded into carbon supports to construct a metal–nitrogen–carbon (M–N–C) structure.…”