CHẾ TẠO VÀ KHẢO SÁT SỰ ẢNH HƯỞNG CỦA HÀM LƯỢNG PALADI TRONG VẬT LIỆU TỔ HỢP Pd/γ-Al2O3 ĐẾN KHẢ NĂNG CHUYỂN HÓA KHÍ CO Ở NHIỆT ĐỘ PHÒNG
Viện Độ bền Nhiệt đới, Trung tâm Nhiệt đới Việt - Nga
Số 63 Nguyễn Văn Huyên, Nghĩa Đô, Cầu Giấy, Hà Nội
Số điện thoại: 096233335; Email: hnthien.ttndvn@gmail.com
Nội dung chính của bài viết
Tóm tắt
PREPARATION OF GAMMA-ALUMINA/PALLADIUM COMPOSITE AND CONSIDERING THE INFLUENCE OF PALLADIUM CONTENT ON THE OXIDATION OF CARBON MONOXIDE AT ROOM TEMPERATURE
This study presents the results of fabrication Pd/γ-Al2O3 by the chemical co-precipitation method. The results showed that the CO conversion speed and efficiency of Pd/γ-Al2O3 (3%Pd) were many times higher than Pd/γ-Al2O3 (2,5%PD) and Pd/γ-Al2O3 (2%Pd). For the first 1500 seconds compared to ФК-П catalyst, the CO conversion speed of Pd/γ-Al2O3 (3%Pd) was 8% higher. To consider the microstructure, FE-SEM and XRD measurements were also carried out.
Từ khóa
CO catalytic conversion, co-precipitation, Pd/γ-Al2O3 composite, room temperature, xúc tác, chuyển hóa CO
Chi tiết bài viết
Tài liệu tham khảo
2. C. C. Luo, Y. H. Zhang, Y. G. Wang, Palladium nanoparticles in poly(ethyleneglycol): the efficient and recyclable catalyst for Heck reaction, Journal of Molecular Catalysis A: Chemical, 2005, 229:7-12.
3. G. B. Hoflund, H. A. E. Hagelin, J. F. Weaver, G. N. Salaita, ELS and XPS study of Pd/PdO methane oxidation catalysts, Applied Surface Science, 2003, 205:102-112.
4. J. Ma, Y. Ji, H. Sun, Y. Chen, Y. Tang, T. Lu, J. Zheng, Synthesis of carbon supported palladium nanoparticles catalyst using a facile homogeneous precipitation-reduction reaction method for formic acid electrooxidation, Applied Surface Science, 2011, 257:10483-10488.
5. Z. P. Sun, X. G. Zhang, H. Tong, R. L. Xue, Y. Y. Liang, H. L. Li, Poly(sodium-p-styrenesulfonate) assisted microwave synthesis of ordered mesoporous carbon supported Pd nanoparticles for formic acid electro-oxidation, Applied Surface Science, 2009, 256:33-38.
6. F. J. Urbano, J. M. Marinas, Hydrogenolysis of organohalogen compounds over palladium supported catalysts, Journal of Molecular Catalysis A: Chemical, 2001, 173:329-345.
7. D. Fritsch, K. Kuhr, K. Mackenzie, F. D. Kopinke, Hydrodechlorination of chloroorganic compounds in ground water by palladium catalysts: Part 1. Development of polymer-based catalysts and membrane reactor tests, Catalysis Today, 2003, 82:105-118.
8. H. H. Miao, J. S. Ye, S. L. Y. Wong, B. X. Wang, X. Y. Li, F. S. Sheu, Oxidative modification of neurogranin by nitric oxide: an amperometric study, Bioelectrochemistry, 2000, 51:163-173.
9. P. Singh, M. V. Kulkarni, S. P. Gokhale, S. H. Chikkali, C. V. Kulkarni, Enhancing the hydrogen storage capacity of Pd-functionalized multi-walled carbon nanotubes, Applied Surface Science, 2012, 258:3405-3409.
10. J. Gislason, W. Xia, H. Sellers, Selective hydrogenation of acetylene in an ethylene rich flow: Results of kinetic simulations, Journal of Physical Chemistry A, 2002, 106:767-774.
11. K. Thirunavukkarasu, K. Thirumoorthy, J. Libuda, C. S. Gopinath, A molecular beam study of the NO + CO reaction on Pd(111) surfaces, Journal of Physical Chemistry B, 2005, 109:13272-13282.
12. S. Nath, S. Praharaj, S. Panigrahi, S. Basu, T. Pal, Photochemical evolution of palladium nanoparticles in Triton X-100 and its application as catalyst for degradation of acridine orange, Current Science, 2007, 92:786-790.
13. M. Faticanti, N. Cioffi, S. De Rossi, N. Ditaranto, P. Porta, L. Sabbatini, T. BleveZacheo, Pd supported on tetragonal zirconia: Electrosynthesis, characterization and catalytic activity toward CO oxidation and CH4 combustion, Applied Catalysis B: Environmental, 2005, 60:73-82.
14. Y. Wu, L. Zhanga, G. Lia, C. Lianga, X. Huanga, Y. Zhanga, G. Songb, J. Jia, C. Zhixiang, Synthesis and characterization of nanocomposites with palladium embedded in mesoporous silica, Materials Research Bulletin, 2001, 36:253-263.
15. G. Cristoforetti, E. Pitzalis, R. Spiniello, R. Ishakc, F. Giammancod, M. MunizMirandae, S. Caporalie, Physico-chemical properties of Pd nanoparticles produced by Pulsed Laser Ablation in different organic solvents, Applied Surface Science, 2012, 258:3289-3297.
16. J. Fu, M. Wang, S. Wang, X. Wang, H. Wang, L. Hu, Q. Xu, Supercritical carbon dioxide-assisted preparation of palladium nanoparticles on cyclotriphosphazene-containing polymer nanospheres, Applied Surface Science, 2011, 257:7129-7133.
17. P. Korovchenko, A. Renken, L. Kiwi-Minsker, Microwave plasma assisted preparation of Pd-nanoparticles with controlled dispersion on woven activated carbon fibres, Catalysis Today, 2005, 102-103:133-141.
18. K. Leopold, M. Maier, M. Schuster, Preparation and characterization of Pd/Al2O3 and Pd nanoparticles as standardized test material for chemical and biochemical studies of traffic related emissions, Science of the Total Environment, 2008, 394:177-182.