Catalysts, Journal Year: 2025, Volume and Issue: 15(6), P. 559 - 559

Published: June 4, 2025

The dry reforming of methane (DRM) converts two greenhouse gases, CH4 and CO2, into H2 CO, offering a crucial technological pathway for reducing gas emissions producing clean energy. However, the reaction faces main challenges: high activation energy barriers require temperatures to drive reaction, while sintering carbon deactivation at are common with conventional nickel-based catalysts, which severely limit further development reaction. In this study, nitrogen-doped nanotube-loaded nickel catalytic system (Ni/NCNT) was developed overcome challenges caused by limited active sites maintaining stable structure Ni/CNT system. Ni/NCNT catalysts were prepared using different nitrogen precursors, impact mixing method on performance examined. Characterization H2-TPR, XPS, TEM revealed that doping enhanced metal–support interaction (MSI). Additionally, pyridine species synergistically interact particles, modulating electronic environment nanotube surface increasing catalyst site density. Ni/NCNT-IU catalyst, impregnated urea, exhibited excellent stability, conversion decreasing from 85.0% 82.9% over 24 h continuous This study supports use non-precious-metal carbon-based in high-temperature systems, is strategically important industrialization DRM decarbonized conversion.

Language: Английский