| 稀土、碱金属在特定催化反应中的调变机制 |
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| 引用本文： | 蔡炳新.稀土、碱金属在特定催化反应中的调变机制[J].怀化学院学报,1991(2). |
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| 作者姓名： | 蔡炳新 |
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| 作者单位： | 怀化师专化学系 |
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| 摘 要： | 本文研究了稀土,碱金属添加物分咽在以氢型丝光沸石(HM)为载体的pt—v_2o_5催化剂、碱土金属氧化物(Cao)催化剂中对抑制积炭,促进甲烷氧化偶联反应的作用机理。发现:稀土以碱性,强供氧能力抑制酸中心和金属中心的积炭;碱金属以强供电子的能力诱导偶联催化剂活性组分o的生成而导致活性,选择性的提高.
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| 关 键 词： | 酸碱中心 活性中心 反应途径 供氧能力 |
The Role Mechanism of Adding Rare Earth and Altali Metal in Two Type Catalytic Reaction |
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| Cai Bingxin.The Role Mechanism of Adding Rare Earth and Altali Metal in Two Type Catalytic Reaction[J].Journal of Huaihua University,1991(2). |
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| Authors: | Cai Bingxin |
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| Institution: | Department of Chemistry |
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| Abstract: | The role mechanism, in restraining charbonaceous deposition and promoteing methane coupling, of rare earth added in pt-V2O5/HMand alkali metal addedin altaline-earth metal oxide (CaO) are investigated by the fast of experiment from oneself and others. We find that rare earth restrain , by basicity and proporty of giving oxygen out, carbonaceous deposition on acidic and metal-lic sites and that alkaili metal induce out, by proporty of giving electron out, active component O-re-sulting in the increase of activity and selestivity. |
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| Keywords: | The centre of acid and basicity Reactive ways Ability giving oxygen Active centre |
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