引用本文:
宋一兵, 余林, 孙长勇, 叶飞, 方奕文, 林维明. Pd-Co/C催化剂上葡萄糖的催化氧化反应[J]. 应用化学,
2002, 19(10): 976-980.
Citation: SONG Yi-Bing, YU Lin, SUN Chang-Yong, YE Fei, FANG Yi-Wen, LIN Wei-Ming. Catalytic Oxidation of Glucose over the catalyst Pd-Co/C[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 976-980.
Citation: SONG Yi-Bing, YU Lin, SUN Chang-Yong, YE Fei, FANG Yi-Wen, LIN Wei-Ming. Catalytic Oxidation of Glucose over the catalyst Pd-Co/C[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 976-980.
Pd-Co/C催化剂上葡萄糖的催化氧化反应
摘要:
以活性炭作为载体,制备了Pd/C、Pd-Co/C催化剂。活性评价结果表明,在Pd-Co/C催化剂上反应3 h后,葡萄糖的转化率达92%,选择性为94%,较Pd/C催化剂的活性和选择性有显著提高。BET和XPS表征结果表明,Pd-Co/C催化剂的良好催化活性和选择性是由于Co的添加及焙烧过程改变了Pd/C催化剂的表面组成及结构,提高了Pd的还原能力有关。
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关键词:
- 葡萄糖
- / Pd-Co/C催化剂
- / 催化氧化
English
Catalytic Oxidation of Glucose over the catalyst Pd-Co/C
Abstract:
The activities of Pd/C、Pd-Co/C catalysts have been evaluated in a self-made batch reactor and characterized by BET、XRD and XPS techniques. The results show that Pd-Co/C catalyst exhibits the glucose conversion activity of 92%, with 94% selectivity to glucose acid after reaction for 3 h. The BET measurement reveals the increased distribution of the larger pore size of Pd-Co/C catalyst in comparison with that of Pd/C as a result of the addition of Co and the sequent catalyst calcination. The XPS characterization indicates higher concentration and dispersion of palladium species on the surface of Pd-Co/C catalysts compared with Pd/C catalyst. This suggests the easy reduction of the Pd species located on the surface of Pd-Co/C catalysts. The Pd-Co/C catalyst exhibits better catalytic performance for oxidation of glucose than Pd/C catalyst.
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Key words:
- glucose
- / Pd-Co/C catalyst
- / catalytic oxidation
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