Nature of the catalytically active carbonaceous sites for the oxydehydrogenation of ethylbenzene to styrene

G. Edwin Vrieland *, P. Govind Menon
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引用次数: 58

Abstract

Over the past two decades work has appeared in several different laboratories describing a group of catalysts, such as aluminas and various metal phosphates, which are very selective for the oxydehydrogenation of ethylbenzene to styrene. Evidence has accumulated that the active site for these catalysts is actually a carbonaceous layer which is initially deposited on the surface. Carbon itself has shown significant activity and selectivity for this reaction. The history of this development and the various kinds of evidence which support the role of an active carbon overlayer are reviewed.

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乙苯氧脱氢制苯乙烯催化活性碳基的性质
在过去的二十年里,在几个不同的实验室里出现了一些研究工作,描述了一组催化剂,如氧化铝和各种金属磷酸盐,它们对乙苯氧化脱氢生成苯乙烯具有很强的选择性。越来越多的证据表明,这些催化剂的活性位点实际上是最初沉积在表面的碳质层。碳本身在该反应中表现出显著的活性和选择性。回顾了这一发展的历史以及支持活性炭覆盖层作用的各种证据。
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