The effect of interfacial engineering on the deactivation resistance of nickel-based catalysts for dry reforming of methane

Abstract

Methane dry reforming reaction (DRM) can convert CO2 and CH4, two kinds of greenhouse gases with very stable chemical properties, to produce syngas, which can be used to synthesize valuable industrial products. Nickel-based catalysts have been widely used in DRM because of their low cost and good catalytic activity. However, nickel application is limited by such as high-temperature metal sintering, carbon deposition and catalyst poisoning, which restricts the industrial application in DRM reaction. Compared with single metal nickel, the selective doping of multi metals and supports shows higher catalytic activity and anti poisoning tolerance due to changing the chemical and structural properties of the catalyst by enhancing the alloy effect and the force between metal and support. This paper mainly reviews the catalysts with anti-coking, anti-sintering and anti-sulfur poisoning by tuning the metal-metal interaction and metal-support interaction (MSI) in DRM. The modification strategies in interfacial engineering and structure-performance relationship are discussed, and the existing difficulties and future development of Ni-based catalysts are proposed.

Application of ZrO2-Based Hierarchical Nanofibers as a Promoter in Ni Catalyzed Methane Dry Re-Forming

“…It is well-known that the high oxygen transport of ZrO 2 provides protection against coke formation . However, it has also been shown that the relatively weak metal–support interactions (MSIs) of Ni with ZrO 2 lead to deactivation by sintering. , To mitigate this effect, Tathod et al deposited a thin layer of MgAlO x MO nanosheets, derived from layer double hydroxide (LDH) NPs, as an intermediate strongly interacting oxide support. This unique hierarchical configuration was shown to provide superior performance and stability in DRM.…”