Journal article
Low-temperature plasma-assisted preparation of graphene supported palladium nanoparticles with high hydrodesulfurization activity
Journal of materials chemistry, v 22(29), pp 14363-14368
01 Jan 2012
Abstract
In this work, a novel strategy to obtain the graphene-supported palladium catalyst for the hydrodesulfurization of carbonyl sulfide (COS) in coal gas is presented. By employing the low temperature dielectric barrier discharge (DBD) plasma, well-dispersed Pd nanoparticles with particle size of about 2 nm supported on graphene sheets (PL-Pd/GS) have been synthesized through a facile one-step route, in which the graphite oxides and PdCl2 were simultaneously reduced in hydrogen plasma. The as-prepared PL-Pd/GS catalyst shows higher catalytic efficiency in the COS hydrogenation, compared to a traditional Pd/C catalyst, as well as Pd/GS reduced by hydrogen at high temperature or by ethylene glycol reduction in liquid phase. Characterizations using XRD, FT-IR, Raman, and HRTEM techniques reveal that the improved performance of PL-Pd/GS for COS conversion is attributed to small size and uniform dispersion of Pd nanoparticles on graphene sheets resulting from the efficient low temperature treatment in DBD plasma. This finding inspires the in situ preparation of various metal-graphene sheets catalysts by taking advantage of plasma, and paves a new avenue to make use of graphene sheets as a support material to improve catalytic activity.
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Details
- Title
- Low-temperature plasma-assisted preparation of graphene supported palladium nanoparticles with high hydrodesulfurization activity
- Creators
- Wenya Xu - School of Chemistry, Faculty of Chemical, Environmental & Biological Science and Technology, Dalian University of Technology,Dalian,ChinaXuzhen Wang - School of Chemistry, Faculty of Chemical, Environmental & Biological Science and Technology, Dalian University of Technology,Dalian,ChinaQuan Zhou - Dalian University of TechnologyBo Meng - Dalian University of TechnologyJiantao Zhao - Institute of Coal ChemistryJieshan Qiu - Dalian University of TechnologyYury Gogotsi - Drexel University
- Publication Details
- Journal of materials chemistry, v 22(29), pp 14363-14368
- Publisher
- Royal Soc Chemistry
- Number of pages
- 6
- Grant note
- 11-12-102 / State Key Laboratory of Coal Conversion Institute of Coal Chemistry, CAS; Chinese Academy of Sciences Cheung Kong Scholarship 20876026; 20836002; 50972022; 51072028; 21176043 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000305966200009
- Scopus ID
- 2-s2.0-84863696933
- Other Identifier
- 991019167456404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary