Review on Anti-Coking and Anti-Sintering Modification Strategies of Nickel-Based Catalysts and Their Industrial Application Potential

Yi Wang

doi:10.54097/2ebdnh62

Authors

Yi Wang

DOI:

https://doi.org/10.54097/2ebdnh62

Keywords:

Nickel-based Catalysts, Anti-Coking, Anti-sintering, Modification Strategies, Catalytic Deactivation, Performance Evaluation

Abstract

Nickel-based catalysts have important application value in many fields such as methane dry reforming (DRM), hydrofining, and water electrolysis for hydrogen production due to their abundant reserves, low cost, and excellent catalytic activity. However, under high-temperature reaction conditions, nickel-based catalysts are prone to carbon deposition and nickel particle sintering/agglomeration, leading to the loss of active sites and the decline of catalytic performance, which seriously restricts their industrial popularization. This paper systematically combs the formation mechanisms of carbon deposition and sintering of nickel-based catalysts and their synergistic deactivation effect, elaborates on the mainstream anti-coking and anti-sintering modification strategies such as carrier modification, active component modification, promoter doping, preparation process optimization, and composite modification, and deeply analyzes the action principle, advantages and limitations of various strategies. On this basis, the performance differences and applicable scenarios of different modification strategies are compared and evaluated, and the future development trend of modification technology is prospected, providing theoretical support and practical reference for the modification research and development, performance optimization and industrial application of nickel-based catalysts.

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