Controlled Pd deposition on carbon fibers by electroless plating for the reduction of nitrite in water

被引:19
作者
Bosko, M. L. [1 ]
Marchesini, F. A. [1 ]
Cornaglia, L. M. [1 ]
Miro, E. E. [1 ]
机构
[1] UNL CONICET, FIQ, Inst Invest Catalisis & Petroquim, Santa Fe, Argentina
关键词
Pd-carbon fibers; Nitrite reduction; Water purification; Electroless plating; Particle deposition; NITRATE HYDROGENATION; CATALYSTS; DENITRIFICATION;
D O I
10.1016/j.catcom.2011.09.034
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Pd catalysts supported on activated carbon felts (ACFs) with different metallic loadings were prepared by electroless plating and evaluated for the reduction of nitrite in water in a batch reactor. Homogeneous Pd dispersions were obtained, the plating solution concentration and the seeding step being the key variables that determine particle size and morphology. The formation of Pd crystals of 96 +/- 22 nm situated at the external surface of the carbon fibers was obtained for 0.14 wt.% of metal loading, while an incipient formation of a Pd thin layer was detected for 1.9 wt.%. The fresh and used catalysts were characterized by SEM, EDS, XRD and XPS. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:189 / 193
页数:5
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