Noble metal catalyst detection in rocks using machine-learning: The future to low-cost, green energy materials?

ABSTRACT: Carbon capture and catalytic conversion to methane is promising for carbon-neutral energy production. Precious metals catalysts are highly efficient; yet they have several significant drawbacks including high cost, scarcity, environmental impact from the mining and intense processing requirements. Previous experimental studies and the current analytical work show that refractory grade chromitites (chromium rich rocks with Al₂O₃ > 20% and Cr₂O₃ + Al₂O₃ > 60%) with certain noble metal concentrations (i.e., Ir: 17-45 ppb, Ru: 73-178 ppb) catalyse Sabatier reactions and produce abiotic methane; a process which has not been investigated at the industrial scale. Thus, a natural source (chromitites) hosting noble metals might be us

SUBMITTER: Ifandi E 

PROVIDER: S-EPMC9992457 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature