Erbium oxide as a novel support for palladium nanocatalysts with strong metal–support interactions: remarkable catalytic performance in hydrogenation reactions. (16th November 2018)

• Record Type: Journal Article
• Authors: Wang, Xin; Jiang, Yi-Fan; Liu, Ya-Nan; Xu, An-Wu
• Is Part Of: New journal of chemistry. Volume 42:Number 24(2018)
• Page Start: 19901
• Page End: 19907
• Publication Date: 2018-11-16
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj05199b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The SMSI effect and strong chemisorption of H2 on Pd–Er2 O3 nanocatalysts significantly improve the catalytic performance for the hydrogenation reactions. Abstract : Because of the active components, ultra small size, and the strong metal–support interaction (SMSI) between the metal and the support, noble metal/support nanocatalysts show high catalytic activity in chemical and photochemical reactions. Palladium is one of the most extensively used noble metals due to its outstanding properties. However, the high price and the trend of aggregation are two obvious defects which prevent further application of palladium in large-scale synthesis. Herein, we chose a novel oxide component Er2 O3 which can effectively reduce the aggregation of palladium nanoparticles as the support. Thus, a series of highly efficient Er2 O3 nanocatalysts with low palladium loading (ranging from 1.25 wt% to 2.25 wt%) were prepared as highly efficient hydrogenation nanocatalysts. Notably, the 1.75 wt% Pd–Er2 O3 achieved a remarkable turnover frequency (TOF) value of 9013 h −1 for the hydrogenation of styrene at room temperature and 1 atm H2 . The sample can also catalyze the hydrogenation of a variety of functional nitroarenes with excellent catalytic properties using H2 as the reductant, which was probably attributed to the synergistic effect of the strong metal–support interaction (SMSI) and strong chemisorption of H2 on Pd–Er2 O3 . This work could provide a new strategy and inspiration to prepare noble metal particles loaded on oxide supports with remarkable catalytic performance for various chemical transformations.