摘要：
Cu<sub>2</sub>O nanorods with extraordinary large surface area are synthesized by polyol method successfully. Their photocatalytic property is evaluated by the photodegradation of brilliant red dye under visible light irradiation. For comparison, Cu<sub>2</sub>O nanocubes are synthesized and evaluated with photocatalytic property as well. The results show that the photocatalytic activity of the Cu<sub>2</sub>O nanorods is more than one time higher than that for Cu<sub>2</sub>O nanocubes under visible light. Additionally, the structure of the Cu<sub>2</sub>O nanorods is very stable and they can not be oxidized to CuO even during the photocatalytic reaction process. It is noticeable that this kind of Cu<sub>2</sub>O nanorods has remarkable large surface areas 47.6 m<sup>2</sup>/g, which is about forty times as large as that for as-prepared Cu<sub>2</sub>O nanocubes and it is also three times larger than that for the reported porous Cu<sub>2</sub>O nanoparticles. The large surface area of Cu<sub>2</sub>O nanorods leads to its higher adsorption ability to the brilliant red dye and excellent high photocatalytic activity under visible light. Since Cu<sub>2</sub>O nanorods are very stable and have high photocatalytic activity under visible light, they are expected to be used in photocatalytic oxidation technology practically in the future.
作者机构：
Boston Coll, Dept Biol, Chestnut Hill, MA 02467 USA.;Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.;USN, Hlth Res Ctr, Detachment Environm Hlth Effects Lab, Wright Patterson AFB, OH 45433 USA.;Huazhong Normal Univ, Inst Nanosci & Nanotechnol, Wuhan, Peoples R China.;[Cai, Dong] Boston Coll, Dept Biol, 410 Higgins Hall, Chestnut Hill, MA 02467 USA.
通讯机构：
[Cai, Dong] B;Boston Coll, Dept Biol, 410 Higgins Hall, Chestnut Hill, MA 02467 USA.
会议名称：
International Conference on Cellular and Molecular Bioengineering
会议时间：
DEC 10-12, 2007
会议地点：
Singapore, SINGAPORE
会议主办单位：
Boston Coll, Dept Biol, Chestnut Hill, MA 02467 USA.^Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.^USN, Hlth Res Ctr, Detachment Environm Hlth Effects Lab, Wright Patterson AFB, OH 45433 USA.^Huazhong Normal Univ, Inst Nanosci & Nanotechnol, Wuhan, Peoples R China.
摘要：
Carbon nanotube and metal particle composites have been exploited to fabricate high performance electrochemical devices. However, the physical and chemical procedures to synthesize the composites are labor intensive and inefficient. Our study reveals an one-step wet chemistry method to accomplish fast and controllable production of gold nanoparticle (AuNP) and carbon naotube (CNT) composites. Such a process is sensitive to the surface charge. Especially, when functionalized with carboxyl groups, the CNTs carried negative charges and showed low level association with negatively charged AuNPs. Thermal treatment was employed to decompose the carboxyl groups and render each CNT a charge-free surface thereby achieving a high level AuNP-CNT association. The fabricated glucose sensors demonstrated dependence of their sensitivities to the amount of AuNPs on the CNTs. The enhancement of sensitivity can be attributed to an accelerated electron transfer rate from glucose oxidase Gox to the electrode. The Michaelis-Menten kinetics also indicated improved performance in the glucose sensor made of AuNP-CNTs. Therefore, our research revealed a novel approach to produce metallic nanoparticle and CNT composite for fabricating high performance electrochemical sensors.
摘要：
Copper oxide nanocrystals decorated on multi-wall carbon nanotubes have been prepared. Comprehensive morphological, structural and spectroscopical studies have been carried out on the nanometre/atomic scale by the combination of high-resolution transmission electron microscopy and electron energy-loss near-edge structure in electron energy-loss spectroscopy, which has a high spatially resolved capacity advantage over the normally used analytical techniques such as x-ray powder diffraction (XRD) and x-ray photoelectron spectroscopy (XPS). The result reveals that highly crystalline cubic Cu2O nanocrystals with highly uniform dispersion, homogeneous size of about 5.3 nm and nearly spherical morphology are synthesized as the predominant phase, while rare individual monoclinic CuO nanocrystals with irregular shape are still present as the minor phase. The analysis based on the survey result and the structural symmetry difference between Cu2O and CuO demonstrates that XRD underestimates the presence of the CuO phase with much lower structural symmetry while XPS overestimates the proportion of CuO phase.
作者机构：
[Luo, Yongsong] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.;Xinyang Normal Univ, Dept Phys Elect Engn, Xinyang 464000, Peoples R China.
通讯机构：
[Luo, Yongsong] C;Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
期刊：
Materials Chemistry and Physics,2006年95(2-3):206-210 ISSN：0254-0584
通讯作者：
Yu, J.(jiaguoyu@yahoo.com)
作者机构：
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;Wuhan Univ, Ctr Elect Microscopy, Wuhan 430072, Peoples R China.;[Xiong, JF; Cheng, B; Liu, SW; Yu, JG] State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;[Wang, JB] Center for Electron Microscopy, Wuhan University, Wuhan 430072, China
通讯机构：
State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, China
作者机构：
[Jia Zhi-Jie; Yu Ying; Ma Li-Li] Institute of Nano-Science and Technology, Central China Normal University, Wuhan 430079, China;[Fu Shao-Yun] Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China;[Huang Wen-Yu] Wuhan Yaohua Pilkington Safety Glass Co. Ltd., Wuhan 430010, China;[Zhu Lu-Ping] Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China, Graduate School of the Chinese, Academy of Sciences, Beijing 100049, China
通讯机构：
[Fu, SY ] ;Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China.
期刊：
Materials Chemistry and Physics,2006年95(2-3):193-196 ISSN：0254-0584
通讯作者：
Yu, J.(jiaguoyu@yahoo.com)
作者机构：
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;[Yu, JG; Zhou, MH; Yu, HG; Zhang, QJ] State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;[Yu, Y] College of Physical Science and Technology, Central China Normal university, Wuhan 430079, PR China
通讯机构：
State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, China
关键词：
Fe-doping;Photoinduced super-hydrophilicity;TiO2 nanometer thin films
期刊：
Monthly Notices of the Royal Astronomical Society,2006年371(4):1659-1662 ISSN：0035-8711
通讯作者：
Zheng, Xiaoping
作者机构：
[Yu, Yunwei; Zheng, Xiaoping; Zhou, Xia; Zheng, XP] Huazhong Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.
通讯机构：
[Zheng, Xiaoping] H;Huazhong Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.
关键词：
dense matter;stars: evolution;stars: neutron;pulsars: general
摘要：
Under the combination effect of recommencement heating due to the spin-down of strange stars (SSs) and heat preservation due to the weak conduction heat of the crust, Cooper pair breaking and formation (PBF) in colour superconducting quark matter arises. We investigate the cooling of SSs with a crust in the colour superconductivity phase including both deconfinement heating (DH) and the PBF process. We find that DH can delay the thermal evolution of SSs and the PBF process suppresses the early temperature rise of the stars. The cooling SSs behave within the brightness constraint of young compact objects when the colour superconductivity gap is small enough.
期刊：
Journal of Solid State Chemistry,2005年178(5):1488-1494 ISSN：0022-4596
通讯作者：
Yu, Y
作者机构：
[Yu, Y] Huazhong Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China.;Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China.
通讯机构：
[Yu, Y] H;Huazhong Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.
作者机构：
[Huang, WY; Yu, Y; Zhu, LP; Li, JL; Ma, LL] College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China;[Qi, XH; Zhuang, YY] College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
通讯机构：
[Ma, LL ] ;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.
作者机构：
[Ding, L; Ge, WK] Department of Physics, Hong Kong University of Science and Technology, Clear Bay, Kowloon, Hong Kong;[Chan, CY; Wong, PK; Yu, Y] Department of Biology, Chinese University of Hong Kong, Shatin, NT 00000, Hong Kong;[Yu, JC; Wong, PK] Environmental Science Programme, Chinese University of Hong Kong, Shatin, NT, Hong Kong;[Yu, JC] Department of Chemistry, Chinese University of Hong Kong, Shatin, NT, Hong Kong;[Che, YK; Zhao, JC] Center for Molecular Science, Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China
通讯机构：
[Wong, PK ] ;Chinese Univ Hong Kong, Dept Biol, Shatin 00000, Hong Kong, Peoples R China.
