Ammonia Selective Catalytic Oxidation (image) Tokyo Metropolitan University Share Print E-Mail Caption (left) Simplified schematic of gold nanoparticles attached to a niobium oxide framework. (right) Conversion efficiency of filter with and without gold, plus selectivity for conversion to nitrogen and water. The graph shows that frameworks loaded with gold nanoparticles show vastly improved activity at room temperature, with excellent selectivity over the entire temperature range. Credit Toru Murayama Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.