Upgrading of aromatic compounds in bio-oil over ultrathin graphene encapsulated Ru nanoparticles

作者：Shi, Juanjuan; Zhao, Mengsi; Wang, Yingyu; Fu, Jie; Lu, Xiuyang; Hou, Zhaoyin^*

来源：Journal of Materials Chemistry A, 2016, 4(16): 5842-5848.

DOI：10.1039/c6ta01317a

• OXYGEN REDUCTION REACTION
• SELECTIVE CATALYTIC CONVERSION
• CO-DOPED GRAPHENE
• TRANSPORTATION FUELS
• CARBON NANOTUBES
• GRAPHITIC LAYERS
• IONIC-LIQUID
• HYDROGENATION
• BIOMASS
• NITROGEN

Fast pyrolysis of biomass for bio-oil production is a direct route to renewable liquid fuels, but raw bio-oil must be upgraded in order to remove easily polymerized compounds (such as phenols and furfurals). Herein, a synthesis strategy for graphene encapsulated Ru nanoparticles (NPs) on carbon sheets (denoted as Ru@G-CS) and their excellent performance for the upgrading of raw bio-oil were reported. Ru@G-CS composites were prepared via the direct pyrolysis of mixed glucose, melamine and RuCl3 at varied temperatures (500-800 degrees C). Characterization indicated that very fine Ru NPs (2.5 +/- 1.0 nm) that were encapsulated within 1-2 layered N-doped graphene were fabricated on N-doped carbon sheets (CS) in Ru@G-CS-700 (pyrolysis at 700 degrees C). And the Ru@G-CS-700 composite was highly active and stable for hydrogenation of unstable components in bio-oil (31 samples including phenols, furfurals and aromatics) even in aqueous media under mild conditions. Thiswork provides a newprotocol to the utilization of biomass, especially for the upgrading of bio-oil.

• 出版日期2016
• 单位浙江大学