储伟
应用催化、 能源化工、碳一化学化工、环境化学和工程、仿生催化、密度泛函理论模拟计算化学、有机催化和清洁生产、应用化学和纳米材料
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- 姓名:储伟
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
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学科领域:
催化化学
- 研究兴趣:应用催化、 能源化工、碳一化学化工、环境化学和工程、仿生催化、密度泛函理论模拟计算化学、有机催化和清洁生产、应用化学和纳米材料
四川大学教授(二级),博士生导师,法国博士(1991); 四川省学术与技术带头人,国家教育部新世纪优秀人才(NCET-05-783);国家“985工程”四川大学学术带头人。 1980-1984年在南京大学化学系学习, 毕业后经国家教委选派法国留学(1985-1991年),1991年获法国博士学位。 1992-1995年在中科院大连化物所任博士后、副研究员, 1995年经中国科学院特批晋升研究员来成都分院;1999年获中科院博导资格。任第六届至第十一届全国青年催化学术研讨会学委会理事(1997年至2008年),《J. Nat. Gas Chem.》编委, 《天然气化工》编委,《工业催化》编委。1999年以来先后以客座教授身份与多所国际著名大学开展合作研究 (法国Montpellier大学;日本Hokkaido大学;德国Munich工业 大学;法国Lille 科技大学)。 2001年作为优秀人才引进四川大学化工学院,入选四川大学214重点人才计划二层次;2003年评为四川省学术与技术带头人。获2004年度和2008年度四川省科技进步二等奖共两项 (排名第一);2008年获中国石油与化学工业青年科技突出贡献奖(原化工部科技奖)。2005年初入选国家教育部中国论文在线网站化学化工类优秀专家。主要研究领域为:应用催化、 能源化工、碳一化学化工、环境化学和工程、仿生催化、密度泛函理论模拟计算化学、有机催化和清洁生产、应用化学和纳米材料。 1992年以来已负责承担国家级、省部级以及其他科研攻关项目共20余项 (包括已完成的国家自然科学基金项目29773046和29903011、国家973计划重大项目分题G19990224065、四川省杰出青年基金 项目、中国科学院九五重大项目等)的研究工作, 取得了优良的进展和成绩。近年已在国内外发表学术论文180余篇;在国际核心刊物如 Angew. Chem. Int. Ed.(IF=10.2), Chemical Reviews(IF=26.1), J.Catal.,J. Phys. Chem. B, Catal.Today, Topics in Catalysis, Appl. Catal.A, J. Mol. Catal. A, Catal. Lett.等发表的论文被三大国际检索收录130余篇次 (其中SCI收录71篇, EI收录53篇), 国内外同行正面他引400余次。主编 出版《催化剂工程》,40余万字。共获得和申请中国发明专利20项(已授权10项)。
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20
【期刊论文】Glow-Discharge Plasma-Assisted Design of Cobalt Catalysts for Fischer–Tropsch Synthesis
储伟
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-1年11月30日
Plasma pretreatment of cobalt Fischer–Tropsch catalysts through glow discharge decomposes cobalt nitrate at much lower temperatures than conventional calcination,and smaller superparamagnetic Co metal particles (<7 nm) are formed (see schematic representation). The Fischer–Tropsch reaction rates with these catalysts are higher than or comparable to those of their counterparts prepared by conventional calcination at 473 K.
Fischer–Tropsch synthesis,, heterogeneous catalysis,, magnetic properties,, plasma chemistry,, supported catalysts
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【期刊论文】Cobalt species in promoted cobalt alumina-supported Fischer–Tropsch catalysts
储伟
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-1年11月30日
The structure of cobalt species at different stages of the genesis of monometallic and Pt-promoted cobalt alumina-supported Fischer–Tropsch catalysts was studied using X-ray diffraction, UV–visible spectroscopy, in situ X-ray absorption, in situ magnetic method, X-ray photoelectron spectroscopy, and DSC–TGA thermal analysis. The catalysts were prepared by incipient wetness impregnation using solutions of cobalt nitrate and dihydrogen hexachloroplatinate. Both variation of catalyst calcination temperature between 473 and 773 K and promotion with 0.1 wt% of Pt had no significant affect on the size of supported Co3O4 crystallites. The size of cobalt oxide particles in the calcined catalysts seems to be influenced primarily by the pore diameter of the support. Cobalt reducibility was relatively low in monometallic cobalt alumina-supported catalysts and decreased as a function of catalyst calcination temperature. The effect was probably due to the formation of mixed surface compounds between Co3O4 and Al2O3 at higher calcination temperatures, which hinder cobalt reduction. Promotion with platinum spectacularly increased the rate of cobalt reduction; the promotion seemed to reduce the activation energy of the formation of cobalt metallic phases. Analysis of the magnetization data suggests that the presence of Pt led to the reduction of smaller cobalt oxide particles, which could not be reduced at the same conditions in the cobalt monometallic catalysts. Promotion of cobalt alumina-supported catalysts with small amounts of Pt resulted in a significant increase in Fischer–Tropsch cobalt time yield. The efficient control of cobalt reducibility through catalyst calcination and promotion seems to be one of the key issues in the design of efficient cobalt alumina-supported Fischer–Tropsch catalysts.
Clean fuels, Fischer–Tropsch synthesis, Nanoparticles, Catalyst preparation, Alumina, Cobalt catalyst, Promotion, Dispersion, Reducibility, In situ X-ray absorption, XANES, EXAFS, In situ magnetic method
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储伟
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-1年11月30日
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储伟, Junqiang Xu , Wei Chu , Shizhong Luo
J. Xu et al. Journal of Molecular Catalysis A: Chemical 256 (2006) 48-56,-0001,():
-1年11月30日
Stable V-MCM-41 mesoporous materials have been synthesized by hydrothermal method, using hexadecyl-trimethyl-ammonium bromide as template, and industrial Na2o (3.3-3.5)SiO2 as the source of much cheaper silica instead of conventional expensive organic precursors. Several modern techniques like XRD, N2 adsorption, FT-IR, UV-vis and SEM have been utilized to characterize the framework structure and texture of the samples. The results of N2 adsorption and X-ray diffraction showed that the synthesized samples had a high ordered hexagonal structure, good hydrothermal stability and thermal stability. The selective oxidation of styrene using hydrogen peroxide as oxidant over V-MCM-41 samples showed a good catalytic performance of partial oxidation, the phenylacetic acid was the principal product (the selectivity value was 49.4%). Even after a thermal treatment at 900 0C in air for 12 h or a hydrothermal treatment in boiling water for 8 days, each of the two resultant materials could retain the ordered channels and a high BET surface area. UV-vis spectra provided strong evidences that most of vanadium ions were incorporated into the framework of siliceous MCM-41 sample.
Mesoporous V-MCM-41, Hydrothermal stability, Thermal stability, Catalyst, Selective oxidation of styrene, Phenylacetic acid
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储伟, M.H. Chen, W. Chu, X.Y. Dai, X.W. Zhang
M. H. Chen et al. Catalysis Today 89 (2004) 201-204,-0001,():
-1年11月30日
For the selective hydrogenation of acetylene, the novel Pd/ -Al2O3 catalysts prepared by plasma method were investigated. The inuence of the preparation method, content of Pd active component, catalyst promoter and reaction temperature has been investigated. It was found that the conversion and selectivity of the catalysts prepared by glow discharge plasma were superior to those obtained from the conventional catalysts. The acetylene conversion of 100% and the selectivity of 71.3% in C2H4 were obtained at 50℃ over the plasma-prepared sample (0.15 wt.% Pd), while the plasma-prepared catalyst was stable during the long-time test for more than 20 h. 2003 Elsevier B.V. All rights reserved.
Palladium catalyst, Plasma technique, Acetylene, Selective hydrogenation, Ethylene
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【期刊论文】Preparation and characterization of amorphous Co-B catalysts with mesoporous structure
储伟, Tong Dong-ge, Chu Wei, Luo Yong-yue, Chen Hong, Ji Xiao-yang
D. -g. Tong et al. Journal of Molecular Catalysis A: Chemical 269 (2007) 149-157,-0001,():
-1年11月30日
Amorphous Co-B alloy catalyst with mesoporous structure was firstly prepared via reduction of cobalt acetate by potassium borohydride in the presence of an organic template hexadecyl-trimethyl-ammonium bromide. The as-prepared mesoporous Co-B was characterized by Fourier transform infrared (FTIR), X-ray powder diffraction (XRD), scanning electron micrograph (SEM), inductively coupled plasma (ICP), X-ray photo-electron spectroscopy (XPS), cyclic voltammetry (CV) measurement, N2 adsorption-desorption, CO temperature-programmed desorption (TPD), and magnetic performance test. Investigations demonstrated that such mesoporous structure has a pronounced influence on the magnetic properties of Co-B alloy and the enhanced magnetic performance enables the as-prepared mesoporous Co-B to be recycled by magnetic method in the liquid-phase cinnamaldehyde (CMA) hydrogenation. During the hydrogenation, the as-prepared mesoporous Co-B exhibited higher cinnamaldehyde conversion and cinnamyl alcohol (CMO) selectivity than the regular Co-B obtained without using organic template, which is attributed to the larger specific surface area and the stronger affinity to C-O. After 11 cycles, the conversion of cinnamaldehyde over the mesoporous Co-B was 85.2%, which is higher than that of the fresh regular Co-B. The good cycle performance is attributed to its preserved mesoporous structure in spite of the collapse of some mesopores during cycling. In addition, the increase of selectivity for cinnamyl alcohol after several cycles is attributed to the growth of particle size.
Mesoporous Co-B, Cinnamaldehyde, Hydrogenation, Cycle performance, Magnetic properties
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【期刊论文】Preparation of mesoporous Co–B catalyst via self-assembled triblock copolymer templates
储伟, Dong-ge Tong, Xue Han, Wei Chu, Hong Chen, Xiao-Yang Ji
D. Tong et al. Materials Letters xx (2007) xxx-xxx,-0001,():
-1年11月30日
Mesoporous Co–B with worm-like morphology was firstly prepared via reduction of cobalt acetate by potassium borohydride in the presence of triblock copolymer templates. The as-prepared mesoporous Co–B was characterized by Fourier transform infrared (FTIR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), and N2 adsorption–desorption. During the hydrolysis of KBH4, the mesoporous Co–B exhibited much higher catalytic activity than the regular Co–B. It is attributed to the larger specific surface area (163.77 m2/g) and mesoporous channels. The average H2 generation rate of the mesoporous Co–B was 3523 mL/min g catalyst in 1.3 wt% NaOH + 13 wt.% KBH4 solution at 286 K, which may give a successive H2 supply for a 571 W polymer electrolyte membrane fuel cell (PEMFC) at 100% H2 utilization. Furthermore, the as-prepared mesoporous Co–B with high specific surface area is expected to find applications in many catalytic hydrogenation reactions.
Catalysts, Nanomaterials, Co–B amorphous alloy, Mesoporous structure, Triblock copolymer templates
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储伟, Limin Shi, Wei Chu, Fenfen Qu and Shizhong Luo
Catalysis Letters Vol. 113, Nos. 1-2, January 2007,-0001,():
-1年11月30日
The effect of preparation method on MnOx–CeO2 mixed oxide catalysts for methane combustion at low temperature was investigated by means of BET, XRD, XPS, H2-TPR techniques and methane oxidation reaction. The catalysts were prepared by the conventional coprecipitation, plasma and modied coprecipitation methods, respectively. It was found that the catalyst prepared by modied coprecipitation was the most active, over which methane conversion reached 90% at a temperature as low as 390 °C. The XRD results showed the preparation methods had no eect on the solid solution structure of MnOx–CeO2 catalysts. More Mn4+ and richer lattice oxygen were found on the surface of the modied coprecipitation prepared catalyst with the help of XPS analysis, and its reduction and BET surface area were remarkably promoted. These factors could be responsible for its higher activity for methane combustion at low temperature.
MnOx–CeO2 mixed oxide, solid solution, methane combustion, low-temperature activity.,
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储伟, Dong-Ge Tong, Wei Chu, Yong-Yue Luo, Xiao-Yang Ji, Yi He
D. -G. Tong et al. Journal of Molecular Catalysis A: Chemical 265 (2007) 195-204,-0001,():
-1年11月30日
The amorphous Co-B particles were prepared from cobalt nitrate and potassium borohydride. Ethanol-thermal treatment has been used to promote the crystallinity of Co-B particles. Both the amorphous and crystallized Co-B particles were characterized by X-ray powder diffraction (XRD), scanning electron micrograph (SEM), inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), specific surface area (SBET), CO temperature-programmed desorption (TPD), and magnetic performance test. After crystallization, the synergistic effect between Cc and B, the structure stability, and the magnetic property of Co-B enhanced while the activation energy in cinnamaldehyde (CMA) hydrogenation decreased. Furthermore, the conversion of cinnamaldehyde (CMA) increased from 5% to 57%. The hydrogenation of the C-C bond in cinnamaldehyde (CMA) is favored for the amorphous Co-B particles while the hydrogenation of the C=O bond is preferred for the crystallized Co-B particles. After 13 cycles, the crystallized Co-B particles remain higher cinnamaldehyde (CMA) conversion and cinnamyl alcohol (CMO) selectivity, which is attributed to their good structure stability and the novel magnetic method for recycle; while the cycle performance of amorphous Co-B particles is poor due to their instable structure.
Amorphous Co-B particles, Cinnamaldehyde, Hydrogenation, Crystallization, Magnetic properties
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储伟, Jingping Hong, Wei ChuMuhua Chen, Xiaodong Wang, Tao Zhang
J. Hong et al. Catalysis Communications 8 (2007) 593-57,-0001,():
-1年11月30日
Novel titania supports have been designed and elaborated with the hydrolysis precipitation method, by adjusting and controlling of the main preparation parameters, such as pH value, adding rate of tetrabutyl titanate Ti(OBu)4, and calcining temperature of precursor during support preparation. The new titania supported Pd catalysts were prepared and investigated for selective hydrogenation of acetylene to ethylene. The catalyst samples have been characterized by temperature programmed reduction (TPR), XRD and BET tech- niques. The experimental results indicated that with MgO modication, the improved catalyst (0.5%Pd–MgO/TiO2) showed better performance of high and stable activity. 2006 Elsevier B.V. All rights reserved.
Preparation of titanium dioxide, Supported palladium catalyst, Selective hydrogenation, Acetylene, Ethylene
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