Dry reforming of methane (DRM) enables the resource utilization of greenhouse gases, yet conventional thermal catalysis is limited by excessive energy input and serious carbon coking deactivation. Herein, we propose a non-thermal catalytic strategy integrating dielectric barrier discharge (DBD) low-temperature plasma with Ni single-atom catalysts. A hierarchical NiFe\/3D NC single-atom catalyst with Ni-N2<\/sub> low-coordination configuration, Fe promoter doping and 3D porous carbon matrix was synthesized by the template-assisted hydrothermal-calcination method. Significant synergy occurs between plasma-generated high-energy electrons and unsaturated single-atom sites, which greatly reduces the apparent activation energy. At optimized discharge conditions, CH4<\/sub> and CO2<\/sub> conversions attain 94.03% and 75.57%, respectively. The reversible Fe2+<\/sup>\/Fe3+<\/sup> redox cycle removes surface dissociated carbon species and sustains long-term catalytic stability. This work clarifies the dynamic interaction mechanism between plasma field and hierarchical single-atom catalysts and offers theoretical basis for carbon energy conversion under mild environments.<\/p>\n","protected":false},"featured_media":5238,"template":"","meta":{"_acf_changed":false},"schedule":[5],"speaker-category":[],"class_list":["post-5252","speaker","type-speaker","status-publish","has-post-thumbnail","hentry","schedule-day-1"],"acf":[],"yoast_head":"\n