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题名: Synthesis, characterization, and catalytic application of titanium-cryptomelane nanorods/fibers
作者: Tang, Xingfu;  Li, Yonggang;  Chen, Junli;  Xu, Yide;  Shen, Wenjie
关键词: titanium ;  cryptomelane ;  nanofiber ;  Mn 3s XPS ;  CO oxidation
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2007-06-20
DOI: 10.1016/j.micromeso.2007.02.008
卷: 103, 期:1-3, 页:250-256
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 ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: One-dimensional titanium-cryptomelane manganese oxide nanomaterials were successfully synthesized and characterized by TEM, SEM, XRD, XPS, and BET surface area and pore size distribution measurements. Nanosizes of titanium-cryptomelane nanomaterials were effectively controlled by the synthesis routes, and uniform nanorods were obtained by the reflux method and nanofibers by the hydrothermal one. HRTEM, XRD and N-2 adsorption-desorption analyses revealed that the materials exhibited the cryptomelane crystal structure with the pore diameters of about 0.5 nm. XPS studies demonstrated that Ti4+ cations of titanium-cryptomelane materials were located at the octahedral coordinated environments, and that the average oxidation states of manganese species were about 3.9. These materials showed high catalytic activities toward CO oxidation at ambient temperature, and catalytic behaviors showed a correlation with the surface area, the morphology and the titanium content. (c) 2007 Elsevier Inc. All rights reserved.
关键词[WOS]: OCTAHEDRAL MOLECULAR-SIEVES ;  SIZE CONTROL ;  HOLLANDITE ;  OXIDATION ;  METAL ;  OXIDES ;  NANOMATERIALS ;  SUBSTITUTION ;  EFFICIENT ;  PHENOL
语种: 英语
WOS记录号: WOS:000247482200031
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140482
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Tang, Xingfu,Li, Yonggang,Chen, Junli,et al. Synthesis, characterization, and catalytic application of titanium-cryptomelane nanorods/fibers[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2007,103(1-3):250-256.
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