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Enhanced Ammonia Synthesis Activity of Ru Supported on Nitrogen-Doped Carbon Nanotubes
Gao Weijie; Guo Shujing; Zhang Hongbo; Pan Xiulian; Bao Xinhe
KeywordChemical Vapor Deposition Nitrogen-doped Carbon Nanotube Ammonia Synthesis Ruthenium
Source PublicationCHINESE JOURNAL OF CATALYSIS
2011-08-01
DOI10.3724/SP.J.1088.2011.01020
Volume32Issue:8Pages:1418-1423
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordRUTHENIUM CATALYSTS ; FUEL-CELL ; NANOPARTICLES ; FUNCTIONALITIES ; REACTIVITY
AbstractNitrogen-doped carbon nanotubes (NCNTs) were synthesized via chemical vapor deposition using acetonitrile as the carbon and nitrogen sources. Transmission electron microscopic characterization showed clearly tubular morphology of NCNTs with inner diameter of 10-15 nm and wall thickness of 10-20 nm. X-ray photoelectron spectroscopy (XPS) indicated that nitrogen species were incorporated into CNTs and the predominating type of nitrogen species were pyridinic and quaternary nitrogen. XPS, X-ray diffraction, and Raman spectroscopy showed that with increasing temperature the total amount of nitrogen species decreased but the nanotubes were better graphitized. Ru supported on NCNTs exhibited an obviously enhanced activity in ammonia synthesis as compared with the CNT-supported Ru catalyst. In particular, in the temperature range of 550 similar to 750 degrees C, the NCNTs obtained at 650 degrees C after deposition of Ru yielded a better activity, which was most likely attributed to the promoting effect of nitrogen doping and the graphitization of nanotubes.
Language英语
WOS IDWOS:000294314000018
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/142316
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Gao Weijie,Guo Shujing,Zhang Hongbo,et al. Enhanced Ammonia Synthesis Activity of Ru Supported on Nitrogen-Doped Carbon Nanotubes[J]. CHINESE JOURNAL OF CATALYSIS,2011,32(8):1418-1423.
APA Gao Weijie,Guo Shujing,Zhang Hongbo,Pan Xiulian,&Bao Xinhe.(2011).Enhanced Ammonia Synthesis Activity of Ru Supported on Nitrogen-Doped Carbon Nanotubes.CHINESE JOURNAL OF CATALYSIS,32(8),1418-1423.
MLA Gao Weijie,et al."Enhanced Ammonia Synthesis Activity of Ru Supported on Nitrogen-Doped Carbon Nanotubes".CHINESE JOURNAL OF CATALYSIS 32.8(2011):1418-1423.
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