任斌
目前研究兴趣为界面电化学和增强拉曼光谱方法,包括光谱电化学、表面增强拉曼光谱和针尖增强拉曼光谱研究。
个性化签名
- 姓名:任斌
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师,
- 职称:-
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学科领域:
物理化学
- 研究兴趣:目前研究兴趣为界面电化学和增强拉曼光谱方法,包括光谱电化学、表面增强拉曼光谱和针尖增强拉曼光谱研究。
任斌,1970年3月生。现任厦门大学化学系教授,博士生导师,固体表面物理化学国家重点实验室研究员。1998年7月毕业于厦门大学化学系物理化学专业,获博士学位后留校任教;2000年12月被聘为副研究员;2004年8月破格提升为教授,目前为中国物理学会光散射专业委员会副主任。2002-2003作为洪堡学者在Fritz-Haber研究所从事针尖增强拉曼光谱的研究。目前研究兴趣为界面电化学和增强拉曼光谱方法,包括光谱电化学、表面增强拉曼光谱和针尖增强拉曼光谱研究。在国内外刊物发表论文180余篇,其中SCI论文90余篇, 包括Annu. Rev. Phys. Chem.(1), Angewante Chem. Int. Ed.(2), Phys. Rev. Lett. (1), J. Am. Chem. Soc.(2),论文被他引340余次。应邀为Wiley & Sons的分析化学大全、Wiley & VCH的电化学大全、和Elsevier电化学表面吸附和电催化专著撰写有关章节, 应邀为John Wiley &Sons 撰写表面增强拉曼光谱专著。获2001年中国高校科学技术进步一等奖;中国化学会青年化学奖(2004);霍英东青年教师奖励基金(2006-2008);教育部新世纪优秀人才支持计划(2006-2008)等,目前正主持两项国家自然科学基金和一项教育部博士点基金。还参加了包括国家自然科学基金重点项目和“973”项目子课题等项目的研究工作。
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19
【期刊论文】 A Simple and Effective Route for the Synthesis of Crystalline Silver Nanorods and Nanowires
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任斌, Bin Ren, *, Xu-feng Lin, Jia-wei Yan, Bing-wei Mao, and Zhong-qun Tian*
J. Phys. Chem. B 2003, 107, 899-902,-0001,():
-1年11月30日
A method to produce a substrate suitable for surface-enhanced Raman study on the pure massive Rh electrodewas developed. The surface-enhanced Raman scattering (SERS) active Rh electrode with good stability,reversibility, and ease of preparation can be obtained by the control-current electrochemical roughening method.The surface enhancement factor was estimated to be 3 orders of magnitude. Such kind of enhancement allowsthe investigation of not only some molecules of large Raman cross-section (e.g., pyridine) but also othermolecules of very small Raman cross-section (like CO). This result shows that the Rh surface can be used asa useful substrate for the combined electrochemical and Raman study of some systems that are both offundamental and application interest.
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任斌, Bin Ren a, *, Li Cui a, Xu-Feng Lin b, Zhong-Qun Tian a, b
Chemical Physics Letters 376 (2003) 130-135,-0001,():
-1年11月30日
A Raman cell suitable for the study of solid/liquid/gas three-phase systems and that can work very efficiently onconfocal microprobe Raman systems was introduced. The influence of the environment on the adsorption behavior ofmodel molecule CO on Pt was investigated and different behaviors were observed in the aqueous solution compared tothe gas phase. A preliminary Raman measurement on the three-phase system was performed using methanol as a testingsolution. The diffusion of CO, a dissociate product of methanol, on the Pt electrode from the solution side to the gasside was observed.
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【期刊论文】Surface-Enhanced Raman Study of Cyanide Adsorption at the Platinum Surface
任斌, Bin Ren, *, †, De-Yin Wu, Bing-Wei Mao, ‡ and Zhong-Qun Tian*, ‡
J. Phys. Chem. B 2003, 107, 2752-2758,-0001,():
-1年11月30日
A detailed surface Raman study of the effect of the bulk concentration of cyanide (CN-), electrode potential.and immersion potential on the adsorption behavior of CN- on the Pt electrode surface was performed on aconfocal microprobe Raman system. The notable change of the C-N frequency and the Pt-C intensity at ca.-0.7 V(vs SCE) indicates a subtle change of the adsorption behavior of CN- on the platinum electrode insolutions with concentration of about 10-4M or lower. The concentration of cyanide in the bulk solutionaffects the adsorption behavior. The surface Raman signal can still be observed at concentrations as low as10-6M. When the CN-concentration is higher than 10-3M, the potential for immersing the platinum electrodein the CN-solution has a remarkable effect on the adsorption behavior of CN-With the high-quality surfaceRaman spectra, the surface enhancement factor for the adsorbed CN- was estimated to be about 150.
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任斌, Bin Ren, †, Xu-Feng Lin, Zhi-Lin Yang, Guo-Kun Liu, Ricardo F. Aroca, ‡, Bing-Wei Mao, † and Zhong-Qun Tian*
J. AM. CHEM. SOC. 2003, 125, 9598-9599,-0001,():
-1年11月30日
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任斌, Xu-Feng Lin, †, Bin Ren, *, † and Zhong-Qun Tian‡
J. Phys. Chem. B 2004, 108, 981-986,-0001,():
-1年11月30日
By using the previously developed roughening method for producing SERS-active Rh electrode, and assistedby the highly sensitive confocal microprobe Raman system, we carried out a detailed SERS study on thedissociation and electrooxidation of C1 molecules on a Rh surface. The SERS spectra obtained in a widefrequency region provide not only the vibrations reflecting the internal bonding of CO (at ca. 2000cm-1) butalso the bonding between CO or O with Rh (at ca. 450cm-1). A complementary electrochemical study wasalso performed on the roughened Rh surface in order to correlate the electrochemical and vibrationalinformation. Both electrochemical and SERS studies show that Rh has no discernible activity toward theelectrooxidation or dissociation of methanol in acidic solutions. Rh becomes active and its activity increaseswith the decrease of the solution acidity. For HCHO and HCOOH, the electrooxidation activity of Rh increaseswith increasing pH. On the basis of the result of the model CO system, discussion on the dissociation orelectrooxidation mechanisms was presented for C1 molecules on Rh.
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任斌, Bin Ren a), Gennaro Picardi and Bruno Pettinger b)
Rev. Sci. Instrum., Vol. 75, No.4, April 2004,-0001,():
-1年11月30日
We describe a method of preparing gold scanning tunneling microscopy STM tips by direct currentelectrochemical etching in concentrated HCl and ethanol solution. Gold tips with tip apex radiuslower than 30nm can be reproducibly prepared by this method. The influence of the solutioncomposition, etching voltage on the surface structure, and sharpness has been investigated. Thesetips can be efficiently used for STM imaging, tip-enhanced Raman spectroscopy, and light emissioninvestigations on the same sample.
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