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载体对非晶态催化剂的氯代硝基苯加氢性能影响 被引量：1

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摘要 以纳米碳管(CNTs)、γ-Al2O3、活性炭(AC)、SiO2为载体,Pt、Sn为活性组分,采用浸渍-化学还原法制备了负载Pt-Sn双金属非晶态催化剂,采用XRD、SEM、SAED、EDS等技术手段对催化剂进行了表征,明确了催化剂的非晶态性质、结构形态、粒子大小和元素组成等.以氯代硝基苯液相加氢为目标反应,对各催化剂的催化性能进行了评价.结果表明负载Pt-Sn非晶态催化剂在氯代硝基苯加氢反应中具有较好的活性和良好的选择性,其中以CNTs为载体的非晶态催化剂可使三种氯代硝基物加氢转化率达到99.9%,加氢脱氯率小于1.2%.从载体的微观结构、金属-载体相互作用、活性组分在载体表面的几何效应和电子效应等方面对载体响氯代硝基苯加氢性能进行了讨论.
作者 房永彬
机构地区 临沂师范学院实验与教育技术中心
出处 《工业催化》 CAS 2005年第z1期535-539,共5页 Industrial Catalysis
基金 国家自然科学基金(20276071)
关键词 碳纳米管 氯代硝基苯 非晶态合金 催化加氢 氯代苯胺
分类号 TQ032 [化学工程] TQ426 [化学工程]
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参考文献12

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工业催化
2005年 第z1期

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