| 王翔,袁贤鑫.甲苯气相选择氧化制苯甲醛 Ⅴ.K~+添加量对V_2O_5/TiO_2催化剂的影响[J].分子催化,1997,(2): |
| 甲苯气相选择氧化制苯甲醛 Ⅴ.K~+添加量对V_2O_5/TiO_2催化剂的影响 |
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| DOI： |
| 中文关键词: 甲苯,选择氧化,钒基氧化物催化剂,K~＋助剂 |
| 英文关键词:Toluene,Selective oxidation,Vanadium oxide catalyst,K + additive |
| 基金项目: |
| 王翔 袁贤鑫 |
| 杭州大学催化研究所 |
| 摘要点击次数: 735 |
| 全文下载次数: 17 |
| 中文摘要: |
| 在Ｖ２Ｏ５／ＴｉＯ２催化剂中添加Ｋ＋，发现当Ｋ＋／Ｖ摩尔比为０．０４－０．０７时，催化剂性能得到显著改善．利用ＢＥＴ、ＸＲＤ、Ｈ２－ＴＰＲ、Ｏ２－ＴＰＤ－ＭＳ和化学分析法，研究了催化剂结构和性能变化．结果表明，随Ｋ＋添加量的不同，Ｖ２Ｏ５／ＴｉＯ２催化剂结构和表面活性氧性质发生了很大变化，从而影响了催化剂反应性能． |
| 英文摘要: |
| K + was added to V 2O 5/TiO 2 catalyst as the promoter.It was found that when K/V molar ratio 0 04-0 07,the performance of the catalyst was markedly improved.BET,XRD,H 2 TPR,O 2 TPD MS,together with chemical analysis were applied to characterize the catalysts and study the change of catalyst structure.Results showed that the structure and surface oxygen of V 2O 5/TiO 2 catalyst were altered pronouncedly when different amounts of K + were added,and their catalytic performance was affected as a consequence. |
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