"Trojan Horse" Effect in Photocatalysis–How Anionic Silver Impurities Influence Apparent Catalytic Activity. Issue 10 (23rd January 2017)

• Record Type: Journal Article
• Authors: Kaufhold, Simon; Petermann, Lydia; Sorsche, Dieter; Rau, Sven
• Is Part Of: Chemistry. Volume 23:Issue 10(2017)
• Page Start: 2271
• Page End: 2274
• Publication Date: 2017-01-23
• Subjects: impurities -- N-heterocyclic carbenes -- photocatalysis -- silver -- water splitting; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201605391
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: The problematic consequences of using silver carbene precursors for the synthesis of NHC‐complexes is elucidated with the example of dinuclear Ru–Rh/Ir photocatalysts. The presence of silver in the products is proven and an alternative silver‐free synthetic approach successfully implemented. A significant difference in performance in photocatalytic hydrogen evolution reactions of catalysts generated by the different strategies is observed. Abstract : Small amount but a large impact : Identical photocatalysts showed severe differences in catalytic performance depending on utilization or avoidance of silver in the synthetic strategy.