董林
主要兴趣集中在固体表面化学和环境保护催化研究方面。
个性化签名
- 姓名:董林
- 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:主要兴趣集中在固体表面化学和环境保护催化研究方面。
董林,男,1963年3月5日生,博士,教授,博士生导师。1995年毕业于南京大学化学系物理化学专业,获理学博士学位。1995-1997年在物理系凝聚态物理专业博士后流动站工作。1997起在南京大学化学系无机化学教研室工作,任无机化学教研室主任。2000-2001年受法国科学院资助,在“催化与水处理实验室”工作。2003.2-2003.8 赴西藏拉萨在“西藏大学化生地系”从事教学和科研工作。2005年9月起任南京大学化学化工学院副院长。
教学方面:98年3月起承担学校“基础学院”基地班(强化,生物,生化,地科,城市地理,材料,化学专业)的面向21世纪化学改革课程<<化学原理>>的主讲(本科),经教务处“教学质量评估科”的评估结果为“优秀”。
科研方面:主要兴趣集中在“固体表面化学”和“环境保护催化”研究方面。具体为:(1)将稀土型金属氧化物催化剂用于汽车尾气中NO, CO等的净化处理的基础问题研究;(2)利用半透膜的“控制释放”(Controlling Release)性质和介孔材料的多级自组装(Multil-grade Self-assemble of Mesoscopic Materials)理论开展的制备纳米材料的工作;(3)纳米金属氧化物固溶体的制备及其物理化学性质的研究。已在J. Phys. Chem .B,Chem.Mater., Appl. Catal. (B. Environmental). Langmuir.等国内外核心刊物上发表论文50余篇。
现承担项目:(1)国家自然科学基金面上项目--稀土型纳米催化剂的制备及其对“NO+CO”的反应性能。(2)国家“973”重大基础项目子课题--金属及金属氧化物组装修饰的多孔催化材料。(3)高等学校博士点专项基金--纳米负载型催化剂的制备及其在汽车尾气处理中的性质研究。
获奖情况:2001年获中国高校科学技术二等奖(第二完成人)。
其他:2001年8月起先后被“Journal of the physical chemistry”,“Journal of Solid State Chemistry”, “Catalysis Communication”等杂志聘为审稿人。
2005年起为教育部高等学校化学基础课程教学指导委员会委员
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主页访问
2283
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成果阅读
609
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成果数
9
【期刊论文】Influence of impregnation times on the dispersion of CuO on anatase
董林, Haiyang Zhua, Yong Wu a, c, Xi Zhaoa, Haiqin Wan a, Lijuan Yang a, Jianming Hongb, Qing Yu a, Lin Donga, ∗, Yi Chena, Can Jian d, Jun Wei d, Penghui Xud
Journal of Molecular Catalysis A: Chemical 243(2006)24-30,-0001,():
-1年11月30日
X-ray diffraction (XRD), temperature-programmed reduction (TPR) and X-ray photoelectron spectroscopy (XPS) were employed to investigate the dispersion of copper oxide in CuO/TiO2 samples prepared by one and double-step impregnations and the NO+CO activities of CuO/TiO2 samples were also tested. The results indicate that the dispersion capacity of copper oxide in CuO/TiO2 samples with one-step impregnation and double impregnations are about 0.52 and 0.98 mmol/100m2 TiO2, respectively, which should be related to the shielding effect of accompanying NO3− anions during the impregnations. Therefore, the dispersion capacity of copper oxide on anatase with double impregnations could approach to 1.16 mmol/100m2 TiO2, i.e. a value corresponding to the density of vacant sites on the (001) surface of TiO2. The NO+CO activities of CuO/TiO2 samples suggest that dispersed copper oxide species in these catalysts is the mainly active species and the increasing amount of dispersed copper oxide would enhance their activities. It seems to suggest that, for the supported catalysts, double or multiple impregnations would result in better activity than those prepared by one-step impregnation. In addition, the coordination environment of the dispersed copper oxide species existed on the anatase surface has been discussed by the incorporation model [Y. Chen, L.F. Zhang, Catal. Lett. 12 (1992) 51].
Copper oxide species, Anatase, Dispersion capacity, Impregnation, Incorporation model
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【期刊论文】Activities of supported copper oxide catalysts in the NOqCO reaction at low temperatures
董林, Yuhai Hu, Lin Dong*, Jun Wang, Weiping Ding, Yi Chen
Journal of Molecular Catalysis A: Chemical 162(2000)307-316,-0001,():
-1年11月30日
The activities of copper oxide supported on CeO2, g-Al2O3 and ceria-modified g-Al2O3 catalysts for the NOqCO reaction at low temperature (200℃) have been investigated. The results show that the activities of the surface-dispersed copper species are greatly enhanced due to the presence of ceria, whether it was used as a support or as the pre-dispersed species on g-Al2O3. The activities decrease in the order: CuO/CeO2>CuO/CeO2/g-Al2O3>CuO/g-Al2O3. For the CuO/CeO2/g-Al2O3 catalysts, it is shown that NO conversions are not improved significantly with the increasing of CuO andror ceria loadings, however, the turn-over number for the catalysts is found to be strongly relative to ceria loadings. By a combination of X-ray diffraction XRD., electron spin resonance ESR.and temperature programmed reduction TPR. results, the states and properties of copper oxide species, as well as the interactions among the surface-dispersed copper oxide species, ceria species and support, are also studied. All the results are tentatively discussed according to the incorporation model proposed previously.
NO reduction, Supported catalysts, Ceria, CuO, ESR, XRD, TPR
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【期刊论文】Characterization of copper oxide supported on ceria-modified anatase
董林, Haiyang Zhua, Mingmin Shen a, Yan Kong a, Jianming Hongb, Yuhai Hua, Tiandong Liu a, Lin Donga, ∗, Yi Chena, Can Jian c, Zhong Liu c
Journal of Molecular Catalysis A: Chemical 219(2004)155-164,-0001,():
-1年11月30日
XRD, LRS, XPS, TPR and ESR have been used to investigate the dispersion and reduction behavior of copper oxide in CuO/CeO2/TiO2samples (copper oxide supported on ceria-modified anatase). The results indicate that: (1) ceria can be highly dispersed on the surface of TiO2 support, and corresponding to a dispersion capacity (DC) of about 6.98 Ce4+ ions/nm2 TiO2; (2) the dispersion of copper oxide on ceria-modified TiO2 is below the loading amount of ceria. For the samples with ceria loading prior to 6.98 Ce4+ ions/nm2 TiO2, the dispersion of copper oxide decreases with the ceria loading. When the loading of ceria is greater than 6.98 Ce4+ ions/nm2 TiO2, the dispersion of copper oxide increases with ceria loading; (3) the reduction behavior of the copper oxide species are also shown to be correlated to the ceria loading. For CuO/CeO2/TiO2 samples with the low ceria loading of 3 wt.%, the dispersed copper oxide species could be simply regarded as two species (Cu-I and Cu-II) according to the differences in the reduction behavior. For the high ceria loading CuO/CeO2/TiO2 samples, e.g. ceria loading amount of 40 wt.%, the TPR profiles indicate that the reduction behavior of copper oxide is similar to that in CuO/CeO2 system, and the sample should be approximately regarded as the composition of two systems, CuO/CeO2 and CeO2/TiO2. In addition, the activities of the catalysts, CuO/TiO2, CuO/CeO2/TiO2 and CuO/CeO2, in the NO+CO reaction at different temperatures have been studied to monitor the relationship between the catalytic activity versus the composition of the catalysts. For the samples with low copper oxide loading, the catalytic activity varies as in this order: 4Cu-6Ce-Ti<CuO/TiO2<CuO/CeO2≈4Cu-40Ce-Ti, which suggests that the dispersed ceria species hinder the activity of surface copper species in 4Cu-6Ce-Ti sample. While for the samles with high ceria loading, the activities of copper species are greatly enhanced due to the formation of crystalline CeO2. Furthermore, for the CuO/CeO2/TiO2 samples, especially for that with lower copper oxide and ceria loadings, the dispersion states of the copper and ceria are also discussed by the consideration of incorporation model proposed previously [Catal. Lett. 12 (1992) 51].
Anatase, Copper oxide species, Ceria, Dispersion capacity (, DC), , NO+, CO
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【期刊论文】Activities of supported copper oxide catalysts in the NOqCO reaction at low temperatures
董林, Yuhai Hu, Lin Dong*, Jun Wang, Weiping Ding, Yi Chen
Journal of Molecular Catalysis A: Chemical 162(2000)307-316,-0001,():
-1年11月30日
The activities of copper oxide supported on CeO2, g-Al2O3 and ceria-modified g-Al2O3 catalysts for the NOqCO reaction at low temperature (200℃).have been investigated. The results show that the activities of the surface-dispersed copper species are greatly enhanced due to the presence of ceria, whether it was used as a support or as the pre-dispersed species on g-Al2O3. The activities decrease in the order: CuO/CeO2/CuO/CeO2/g-Al2O3/CuO/g-Al2O3. For the CuO/CeO2/g-Al2O3 catalysts, it is shown that NO conversions are not improved significantly with the increasing of CuO andror ceria loadings, however, the turn-over number for the catalysts is found to be strongly relative to ceria loadings. By a combination of X-ray diffraction XRD., electron spin resonance ESR.and temperature programmed reduction TPR. results, the states and properties of copper oxide species, as well as the interactions among the surface-dispersed copper oxide species, ceria species and support, are also studied. All the results are tentatively discussed according to the incorporation model proposed previously.
NO reduction, Supported catalysts, Ceria, CuO, ESR, XRD, TPR
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【期刊论文】A study of thoria on the surface of γ-Al2O3
董林, Ming-min Shen, Yu-hai Hu, Hai-yang Zhu, Tian-dong Liu, Shu-ting Wei, Lin Dong, * and Yi Chen
Journal of Colloid and Interface Science 257(2003)408-411,-0001,():
-1年11月30日
The dispersion of thoria on the surface of γ-Al2O3 and the surface properties of ThO2/γ-Al2O3 samples, as well as the influence of the loading amount of thoria on the reduction behavior of copper oxide species, have been studied using XRD, XPS, FTIR, and TPR. The results indicate that the dispersion capacity of thoria, like that of ceria, is much lower than for two other tetravalent metal oxides, zirconia and titania, and the surface adsorption amount of the carbonyl compound and H2O slightly increases with increasing thoria loading. The different thoria loadings can influence the reduction behavior of the dispersed copper oxide by comparing the TPR results of CuO/ThO2/γ-Al2O3 samples. In addition, the lower dispersion capacities of thoria and ceria on γ-Al2O3 are tentatively discussed by considering the structural stability of the two oxides.
Thoria, γ-Al2O3, Dispersion
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【期刊论文】A Study on the Dispersion of NiO and/or WO3 on Anatase
董林, Bin Xu, Lin Dong, Yining Fan, and Yi Chen
Journal of Catalysis 193, 88-95 (2000),-0001,():
-1年11月30日
A series of anatase-supported NiO and/orWO3 samples are prepared by impregnation and characterized by various experimental methods. The results reveal that for the anatase-supported single oxide samples, nickel oxide and tungsten oxide can be highly dispersed on the surface of the support with a dispersion capacity of 6.65 and 4.85 cations/nm2 of anatase, respectively; the experimental data are consistent with the incorporation model proposed earlier by the authors. For the supported binary oxide samples, i.e., NiO/WO3–TiO2,WO3/NiO–TiO2, and NiO–WO3/TiO2 samples, XRD, TPR, Raman, and UV-DRS results have suggested that the dispersion state of oxides is strongly related to the loading sequence of the individual metal oxides.
WO3, NiO, TiO2, dispersion, interaction.,
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董林, Yuhai Hu, Lin Dong*, Mingmin Shen, Dong Liu, Jun Wang, Weiping Ding, Yi Chen
Applied Catalysis B: Environmental 31(2001)61-69,-0001,():
-1年11月30日
Activity measurements were made of theNO+COreaction over a series of CuO/CeO2 and CuO/g-Al2O3 catalysts with various loading amounts of CuO at low-temperatures, XRD, TPR,UV–DRSand XPS were also used for the characterization of the catalysts. The results showthatNOconversions have an intimate relation with the loading amount of CuO and the supports used at temperature lower than 200 C, and the activities decreased in the order: CuO/CeO2 > CuO/g-Al2O3 > crystalline CuO. Under these reaction conditions, the activities of the catalysts strongly depended on the surface dispersed copper oxide species. When the temperaturewas increased to 300 C,NOcompletely conversed toN2 over the catalysts, which meant that the temperature had strongly influenced the reaction. The influence of the support on the activities of the supported copper oxide species was tentatively discussed in the viewof the strong interactions between active components and the supports which significantly promoted the reduction of the surface dispersed copper oxide species.
NO reduction, Surface dispersed copper oxide species, Supported catalysts, XPS, XRD, TPR, UV-DRS
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【期刊论文】Study of the Interactions between MoO3 and a-Fe2O3
董林, Lin Dong, Kaidong Chen, and Yi Chen
JOURNAL OF SOLID STATE CHEMISTRY 129, 30-36(1997),-0001,():
-1年11月30日
a-Fe3O3-supported molybdenum catalysts were prepared by heating a mixture of MoO3 and a-Fe2O3. XRD, XPS, LRS, FT-IR, and Mo
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【期刊论文】A study of CuO/CeO2/Al-Zr-O in "NO+CO"
董林, H. Zhu a, M. Shen a, F. Gao a, Y. Kong a, L. Dong a, *, Y. Chen a, C. Jian b, Z. Liu b
Catalysis Communications 5(2004)453-456,-0001,():
-1年11月30日
The copper oxide species in CuO/CeO2/Al-Zr-O catalysts showed evidently higher NO turn-over numbers for the catalytic NO reduction by CO at 300℃ than that in CuO/Al-Zr-O and CuO/c-Al2O3 catalysts. The introduction of ceria enhanced the catalytic activity of CuO/CeO2/Al-Zr-O samples and the NO turn-over numbers of every copper atom were not influenced by the ceria loading amount. The results suggested that the Al-Zr-O mixed oxide would be a potential support for the three-way catalysts and CuO/CeO2/Al-Zr-O would be promising catalysts for the elimination of NOx.
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