Work

Effect of Preparation Method on the Structure of NiCe Catalysts and CO 2 Methanation Performance

Year: 2026

Type: article

Abstract: CO 2 methanation not only reduces CO 2 emissions but also enables the efficient utilization of carbon resources. The development of highly efficient and stable catalysts is crucial for the application of this reaction. CeO 2 supported Ni catalyst (NiCe) showed high potential for CO 2 methanation. In this paper, we prepared Ni 3 Ce 1 catalysts by three preparation methods: urea hydrothermal method (UHT), coprecipitation method (CP), and sol–gel method (SG), to establish a rational design framework by quantitatively decoupling metal–support interactions (MSI). By comparing the effects of preparation parameters including hydrothermal temperature, precipitation pH, and complexing agent‐to‐metal ion ratios, on catalyst structure and CO 2 methanation performance, the optimal catalysts for each method were identified. Among them, the catalyst Ni 3 Ce 1 ‐CP‐12 prepared by CP, exhibited the best performance, achieving CO 2 conversion as high as 84.6% at 300 °C with good selectivity. This is attributed to its enhanced reducibility, increased surface oxygen vacancies, suitable distribution of basic sites and high surface Ni 0 sites.

Source: Energy Technology

DOI: 10.1002/ente.70632

Authors: Guanyu Tang, Weiwei Huang, Tingting Wang, Shuangxi Lin, Zhenhua Li

Institution: Tianjin University

Language: English

Topic: Catalysts for Methane Reforming

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: bronze

Funder: National Natural Science Foundation of China