Journal Article 142M471B3J Candidatus Methanoperedens nitroreducens Carbon Dioxide Methane OP0UW79H66 Research Support, Non-U.S. Gov't Soil activity and selectivity anaerobic oxidation of methane dielectric elastomer free-air CO2 enrichment liquid crystal elastomer low electric field metal reduction methane cycle paddy rice programmable multimodal actuator single atom and metal phosphide cluster strong metal–support interaction sub‐2 nm metal site thermal stability