Strategically Constructing Alkali-Metal Interfacial Bridges to Boost Photocatalytic CO₂ Methanation on Supported Ni─Ru Bimetallic Catalysts.

ABSTRACT: Efficient photocatalytic conversion of CO₂ into CH₄ is crucial yet challenging due to the complex multi-electron transfer processes and sluggish intermediate transformation. Herein, an innovative strategy is introduced to dramatically enhance photocatalytic CO₂ methanation by constructing interfacial alkali-metal bridges (Na_inter) between Ni and Ru nanoparticles over ZrO₂ surface. By selectively introducing and subsequently removing excessive surface Na species, stable interfacial Na species are retained, forming a distinctive Ni⁰─Ni^δ+─Na_inter─O─Ru electronic bridge. Comprehensive structural and electronic characterizations (XRD, TEM, XAFS, XPS, DRIFTS) demonstrate that the interfacial Na bridge signifi

SUBMITTER: Guo X 

PROVIDER: S-EPMC12561269 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature