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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
关键词Chemical Vapor Deposition Nitrogen-doped Carbon Nanotube Ammonia Synthesis Ruthenium
刊名CHINESE JOURNAL OF CATALYSIS
2011-08-01
DOI10.3724/SP.J.1088.2011.01020
32期:8页:1418-1423
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]RUTHENIUM CATALYSTS ; FUEL-CELL ; NANOPARTICLES ; FUNCTIONALITIES ; REACTIVITY
英文摘要Nitrogen-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.
语种英语
WOS记录号WOS:000294314000018
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142316
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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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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