| 羊毛-Pd(0)催化剂的制备、表征及其在水相中对醇的催化氧化反应 |
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| 引用本文： | 马恒昌,王锋,曹伟,包志康,马源,杨志旺,雷自强. 羊毛-Pd(0)催化剂的制备、表征及其在水相中对醇的催化氧化反应[J]. 催化学报, 2012, 0(9): 1594-1600 |
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| 作者姓名： | 马恒昌 王锋 曹伟 包志康 马源 杨志旺 雷自强 |
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| 作者单位： | 西北师范大学化学化工学院,甘肃省高分子化学与物理重点研究室,教育部生态环境相关高分子重点实验室 |
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| 基金项目： | 国家自然科学基金(21174114,21163016);教育部长江学者和创新团队支持计划(IRT1177)~~ |
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| 摘 要： | 以天然生物高分子羊毛为载体,成功制备了负载型Pd(0)催化剂.采用电场发射扫描电镜和光电子能谱等方法对催化剂进行了表征.结果表明,Pd(0)颗粒均匀地分散在羊毛表面.将羊毛-Pd(0)催化剂用于醇氧化反应,考察了催化剂用量、碱类型和用量、反应温度及时间等因素对反应性能的影响.实验发现,在水相中,35mg羊毛-Pd(0)催化剂在0.2mmol的K2CO3存在下,可以高选择性地将0.2mmol的醇转化为相应的醛或酮,且该催化剂具有很好的重复使用性能.
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| 关 键 词： | 天然生物高分子 羊毛钯-负载型催化剂 醇 催化氧化 醛 酮 |
Preparation and Characterization of Wool-Pd(0)Catalyst and Its Catalytic Performance for Oxidation of Alcohol in Water |
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| MA Hengchang a,WANG Feng,CAO Wei,BAO Zhikang,MA Yuan,YANG Zhiwang,LEI Ziqiang. Preparation and Characterization of Wool-Pd(0)Catalyst and Its Catalytic Performance for Oxidation of Alcohol in Water[J]. Chinese Journal of Catalysis, 2012, 0(9): 1594-1600 |
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| Authors: | MA Hengchang a WANG Feng CAO Wei BAO Zhikang MA Yuan YANG Zhiwang LEI Ziqiang |
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| Affiliation: | b Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education,Key Laboratory of Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,Gansu,China |
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| Abstract: | Wool-Pd(0)catalyst was prepared successfully using nature biopolymer wool as stabilizer and supporter.The structure of the palladium catalyst was characterized by field emission scanning electron microscopy and X-ray photoelectron spectroscopy,and the results showed that Pd(0)particles are well dispersed on the surface of wool.Applying wool-Pd(0)catalyst in the oxidation of alcohol under optimized conditions,several parameters such as catalyst amount,base,reaction temperature,and reaction time were screened.It was found that 35 mg wool-Pd(0)catalyst is available for the oxidation of 0.2mmol alcohol to corresponding aldehyde or ketone with higher conversion and selectivity in the presence of0.2mmol K2CO3 and using water as reaction medium.The heterogeneous catalyst is of good reusability in this reaction system. |
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| Keywords: | nature biopolymer wool-Pd(0) catalyst alcohol catalytic oxidation aldehyde ketone |
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