Recent Advances in Catalysis Based on Transition Metals Supported on Zeolites

Abstract

This article reviews the current state and development of thermal catalytic processes using transition metals (TM) supported on zeolites (TM/Z), as well as the contribution of theoretical studies to understand the details of the catalytic processes. Structural features inherent to zeolites, and their corresponding properties such as ion exchange capacity, stable and very regular microporosity, the ability to create additional mesoporosity, as well as the potential chemical modification of their properties by isomorphic substitution of tetrahedral atoms in the crystal framework, make them unique catalyst carriers. New methods that modify zeolites, including sequential ion exchange, multiple isomorphic substitution, and the creation of hierarchically porous structures both during synthesis and in subsequent stages of post-synthetic processing, continue to be discovered. TM/Z catalysts can be applied to new processes such as CO2 capture/conversion, methane activation/conversion, selective catalytic NOx reduction (SCR-deNOx), catalytic depolymerization, biomass conversion and H2 production/storage.

Nickel–palladium bimetallic nanoparticles supported on multi-walled carbon nanotubes; versatile catalyst for Sonogashira cross-coupling reactions

“…18,19 In addition, the use of copper as the cocatalyst initiates the oxidative homocoupling of the terminal alkyne (Glaser coupling) to produce the corresponding diyne byproduct, [20][21][22] a signicant drawback which prompted attention to developing copper free Sonogashira coupling. 23,24 Heterogeneous catalysis is an alternative attractive approach to construct carbon-carbon bonds in which the metal is xed on solid supports such as zeolites, [25][26][27] polymers, [28][29][30] mesoporous silica, 31,32 and carbon materials. 33 This provides a unique platform to inuence the stability and reactivity of these materials along with ease of separation, simple recovery, and recyclability demonstrated by signicant research efforts in this area in recent years.…”

The High-Effective Catalytic Degradation of Benzo[a]pyrene by Mn-Corrolazine Regulated by Oriented External Electric Field: Insight From DFT Study

“…In addition, the possible oxidative degradation mechanisms and pathways of BaP in the atmosphere have been explored by Dang et al (2015) . However, despite the involvement of transition metals in many catalytic processes ( Fujihara and Tsuji, 2019 ; Lin et al, 2021 ; Parmar et al, 2021 ; Sánchez-López et al, 2021 ; Yang et al, 2021 ; Zhou et al, 2021 ; Zhou et al, 2022 ), the use of transition metal complexes as non-sacrificial oxidants for the degradation of BaP has not been reported in the literature.…”

Oriented External Electric Fields Regurating the Reaction Mechanism of CH4 Oxidation Catalyzed by Fe(IV)-Oxo-Corrolazine: Insight from Density Functional Calculations

“…Compared with oil or coal, methane is an environment-friendly energy, but it is also a greenhouse gas, and its greenhouse effect is much larger than that of carbon dioxide ( Chong et al, 2016 ; Huang et al, 2018 ; Denning et al, 2021 ; Huang et al, 2021 ; Sánchez-López et al, 2021 ). A quarter of the greenhouse effect caused by man-made greenhouse gases is caused by the leakage of methane into the atmosphere ( Kemp et al, 2016 ).…”