以纳米炭纤维为模板浸渍制备V2O5-K2SO4/Al2O3-SiO2纤维复合催化剂

吴强; 赵立; 武美霞; 姚伟峰

以纳米炭纤维为模板浸渍制备V₂O₅-K₂SO₄/Al₂O₃-SiO₂纤维复合催化剂

1.
上海电力学院环境工程与化学学院, 上海 200090;
2.
山西大同大学化学与环境工程学院, 山西大同 037009

基金项目: 国家自然科学基金(21107069,21103106);教育部留学回国人员科研启动基金(Z-2013-002);上海市浦江人才计划(12PJ1403800);上海市教育委员会科研创新项目(14ZZ153) ;稀土功能材料上海市重点实验室开放课题(Z-2011-050) ;上海电力学院海外引进人才科研启动项目(K-2011-004);上海电力学院085工程项目"智能电网储能技术"(C-8209-11-551).

详细信息

作者简介:
吴强,博士,副教授.E-mail:qiangwu@shiep.edu.cn

中图分类号: O643.3
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- 文章访问数: 492
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- 被引次数: 0
出版历程
- 收稿日期: 2015-03-15
- 录用日期: 2015-11-10
- 修回日期: 2015-08-15
- 刊出日期: 2015-10-28

Synthesis of Al₂O₃-silica fibers supported on a V₂O₅-K₂SO₄ catalyst used for soot combustion

1.
College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;
2.
College of Chemical and Environmental Engineering, Shanxi Datong University, Datong 037009, China

Funds: National Natural Science Foundation of China(21107069,21103106);Scientific Research Foundation for the Re-turned Overseas Chinese Scholars,State Education Ministry(Z-2013-002);Shanghai Pujiang Program(12PJ1403800);Innovation Program of Shanghai Municipal Education Commission(14ZZ153);Open Project of Shanghai Key Laboratory of Rare Earth Functional Materials(Z-2011-050);Scientific Research Foundation for the Returned Scholars of Shanghai University of Electric Power(K-2011-004);085 Engineering Project of Smart Grid Energy Storage Technology of Shanghai University of Electric Power(C-8209-11-551).

摘要

摘要: 以SiO₂纤维为宏观基体材料,首先采用化学气相沉积法制备纳米炭纤维,然后以纳米炭纤维作模板将纳米多孔Al₂O₃固化在SiO₂纤维上,以此得到Al₂O₃-SiO₂纤维复合载体材料,最后采用浸渍法制得V₂O₅-K₂SO₄/Al₂O₃-SiO₂纤维复合催化剂。考察V₂O₅-K₂SO₄/Al₂O₃-SiO₂纤维复合催化剂对炭黑颗粒氧化反应的催化性能。结果表明,该类催化剂能明显降低炭黑颗粒的起燃温度,可以有效地降低柴油车尾气中炭黑颗粒的排放,具有潜在的实际应用前景。
- SiO₂纤维 /
- 纳米炭纤维 /
- 模板法 /
- V₂O₅-K₂SO₄系催化剂 /
- 炭黑颗粒
Abstract: An Al₂O₃-silica fiber support was prepared by first impregnating a Al(NO₃)₃ solution on a silica fiber mat on which sacrificial carbon nanofibers had been formed by chemical-vapor deposition, followed by burning in air. The support was further impregnated with a solution containing NH₄VO₃ and K₂SO₄ to prepare the Al₂O₃-silica fiber supported V₂O₅-K₂SO₄ catalyst. The catalyst can greatly decrease the combustion temperature of soot by around 200℃, which is promising for decreasing soot emission in diesel-powered vehicles.
- Silica fiber /
- Carbon nanofibers /
- Template method /
- V₂O₅-K₂SO₄ catalysts /
- Soot

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参考文献(13)

Van Stten B A A L, Makkee M, Moulijn J A. Science and technology of catalytic diesel particulate filters[J]. Catal Re, 2001, 43(4):489-564.

Fino D, Specchia V. Open issues in oxidative catalysis for diesel particulate abatement[J]. Powder Technol, 2008, 180(1-2):64-73.

Wei Y C, Liu J, Zhao Z, et al. The catalysts of three-dimensionally ordered macroporous Ce1-xZrxO₂-supported gold nanoparticles for soot combustion:The metal-support interaction[J]. J Catal, 2012, 287:13-29.

Zhang G Z, Zhao Z, Xu J F, et al. Comparative study on the preparation, characterization and catalytic performances of 3DOM Ce-based materials for the combustion of diesel soot[J]. Appl Catal B, 2011, 107(3-4):302-315.

Ura B, Trawczynski J, Kotarba A, et al. Effect of potassium addition on catalytic activity of SrTiO₃ catalyst for diesel soot combustion[J]. Appl Catal B, 2011, 101(3-4):169-175.

Guihaume N, Bassou B, Bergeret G, et al. In situ investigation of Diesel soot combustion over an AgMnOx catalyst[J]. Appl Catal B, 2012,(119-120):287-296.

Jelles S J, Van Setten B A A L, Makkee M, et al. Molten salts as promising catalysts for oxidation of diesel soot:importance of experimental conditions in testing procedures[J]. Appl Catal B, 1999, 21(1,3):35- 49.

Bentrup U, Martin A, Wolf G U. Comparative study of the thermal and redox behaviourof alkali-promoted V₂O₅ catalysts[J]. Thermochim Acta, 2003, 398(1-2):131-143.

Ogihara H, Sadakane M, Wu Q, et al. Immobilization of nanofibrous metal oxides on microfibers:macrostructured catalyst system functionalized with nanoscale fibrous metal oxides[J]. Chemical Communications, 2007, 39:4047- 4049.

Wu Q, Ogihara H, Uchida H, et al. Nano-scale hydroxyapatite coating on silica fiber by using carbon nanofibers as templates[J]. Bull Chem Soc Jpn. 2008, 81(3):380-386.

Wu Q, Sadakane M, Ogihara H, et al. Shape controlled synthesis of nanofibrous A- or B- site substituted LaMnO₃ perovskite-type oxides with carbon nanofibers templates[J]. Materials Research Bulletin, 2010, 45(9):1330-1333.

Wu Q, Sadakane M, Ogihara H, et al. Nano-scale hydroxyapatite formation with macroscopic shapes using different kinds of carbon nanofibers as templates[J]. Journal of Nanoscience and Nanotechnology, 2010, 10(8):5431-5436.

Kaszonyi A, Hronec M, Delahay G, et al. Changes in properties of V₂O₅-K₂SO₄-SiO₂ catalysts in air, hydrogen and toluene vapors[J]. Appl Catal A, 1999, 184(1):103-113.

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