Rhodium Nanoparticle Size Effects on the CO2 Reforming of Methane and Propane. Issue 12 (8th April 2021)

• Record Type: Journal Article
• Authors: Alabdullah, Mohammed; Ibrahim, Mahmoud; Dhawale, Dattatray; Bau, Jeremy A.; Harale, Aadesh; Katikaneni, Sai; Gascon, Jorge
• Is Part Of: ChemCatChem. Volume 13:Issue 12(2021)
• Page Start: 2879
• Page End: 2886
• Publication Date: 2021-04-08
• Subjects: rhodium -- nanoparticles -- dry reforming -- methane -- propane; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.202100063
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: The CO2 (dry) reforming of hydrocarbons offers an opportunity to convert greenhouse gases into synthesis gas, which can further transform to various valued products. Here we explore the influence of Rh particle size and support on the reforming of propane and methane. To that end, Rh nanoparticles with controlled sizes varying from 1.6‐8.0 nm were synthesized following a polyol reduction method and then dispersed on three different solids: CeZrO2, ZrO2, and CeO2 . Catalytic turnover rates along with advanced characterization of fresh and spent catalysts reveal a linear correlation of turnover rates with Rh particle size for both methane and propane reforming. The nature and rate of coke deposition are highly dependent on the support used and its interaction with the metallic phase. Abstract : The influence of Rh particle size when supported on three different solids: CeZrO2, ZrO2, and CeO2 has been explored for the reforming of propane and methane. Catalytic turnover rates along with advanced characterization of fresh and spent catalysts reveal a linear correlation of turnover rates with Rh particle size for both methane and propane reforming. The nature and speed of coke deposition are highly dependent on the support used and its interaction with the metallic phase.