Atomic Layer Deposition for Preparation of Highly Efficient Catalysts for Dry Reforming of Methane

Abstract

In this article, the structural and chemical properties of heterogeneous catalysts prepared by atomic layer deposition (ALD) are discussed. Oxide shells can be deposited on metal particles, forming shell/core type catalysts, while metal nanoparticles are incorporated into the deep inner parts of mesoporous supporting materials using ALD. Both structures were used as catalysts for the dry reforming of methane (DRM) reaction, which converts CO2 and CH4 into CO and H2. These ALD-prepared catalysts are not only highly initially active for the DRM reaction but are also stable for long-term operation. The origins of the high catalytic activity and stability of the ALD-prepared catalysts are thoroughly discussed.

Atomic/molecular layer deposition strategies for enhanced CO2 capture, utilisation and storage materials

“…In another work, Kim and co-workers applied of 500 cycles of ALD to create a TiO 2 layer on Ni, resulting in reduced agglomeration of nickel. 492 They claimed that the existence of cracks within the oxide shells exerted a pivotal influence in facilitating the easy diffusion of reactant molecules onto the nickel surfaces. It was proven that loading the TiO 2 shell to Ni particles could effectively prevent the 486 Copyright 2019, Elsevier Ltd.…”

A synergic investigation of experimental and computational dual atom electrocatalysis for CO2 conversion to C1 and C2+ products

“…ALD's ability to create specic DACs might be limited by difficulty depositing certain metals and nding suitable precursor molecules for both metals. [66][67][68] Achieving even distribution of both metals can be challenging, affecting performance.…”

Highly Efficient Ni-Phyllosilicate Catalyst with Surface and Interface Confinement for CO2 and CO Methanation

“…In order to inhibit metal sintering, some strategies have been applied, including the formation of coating or the core–shell structure, , anchoring metal particles in channels, − and the formation of metal-based compounds such as spinel or perovskites, , in which the metals can strongly interact with the supports and exhibit a high antisintering property. However, there are some shortcomings for these methods, for example, high cost, complex preparation procedures, employment of expensive instruments, difficulty in large-scale production, high energy consumption, low surface availability of metal species owing to encapsulation, lack of exposed defects due to high-temperature reduction, and poor low-temperature activity, which to some degree restrict their industrial application.…”