氧化甲烷偶联中氧化催化剂结构缺陷上的氧化活化

IF 9.3 2区 化学 Q1 CHEMISTRY, PHYSICAL Catalysis Reviews-Science and Engineering Pub Date : 1995-02-01 DOI:10.1080/01614949508007092
E. Voskresenskaya, V. G. Roguleva, A. Anshits
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引用次数: 103

摘要

半个多世纪以来,关于甲烷直接转化为含氧产品的不同方面已经在之前的综述中得到了阐述[1-3]。其中,Gesser等人[13]主要关注甲烷转化的均相阶段,而Foster[2]和Pitchai和Klier[3]研究了不同催化剂对甲醇和甲醛形成的影响。目前的研究表明,甲烷与氧均相氧化过程的主要产物是根据链分支机理形成的甲醇。在均相引发剂[4](苯、2,2,4-三甲基戊烷等)或非均相催化剂[2,3,5,6]存在下,甲醛与CH30H一起生成。然而,理想产品的收率很低,不超过8-10%。带电原子氧形式被认为参与催化甲烷氧化过程。
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Oxidant Activation Over Structural Defects of Oxide Catalysts in Oxidative Methane Coupling
Abstract Different aspects concerning the process of direct methane conversion to oxygen-containing products developed during more than half a century have been considered in previous reviews [1–3]. In particular, Gesser et al. [13 paid most attention to the homogeneous stages in methane conversion, while Foster [2] and Pitchai and Klier [3] examined the effect of different catalysts on methanol and formaldehyde formation. At present the main product of the homogeneous methane oxidation process with oxygen is shown to be methanol formed according to a chain-branching mechanism. In the presence of homogeneous initiators [4] (benzene, 2,2,4- trimethylpentane, etc.) or heterogeneous catalysts [2,3,5,6], formaldehyde is formed together with CH30H. However, the yield of the desirable products is low and does not exceed 8–10%. Charged atomic oxygen forms are considered to take part in the process of catalytic methane oxidation.
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来源期刊
CiteScore
22.30
自引率
2.80%
发文量
29
期刊介绍: Catalysis Reviews is dedicated to fostering interdisciplinary perspectives in catalytic science and engineering, catering to a global audience of industrial and academic researchers. This journal serves as a bridge between the realms of heterogeneous, homogeneous, and bio-catalysis, providing a crucial and critical evaluation of the current state of catalytic science and engineering. Published topics encompass advances in technology and theory, engineering and chemical aspects of catalytic reactions, reactor design, computer models, analytical tools, and statistical evaluations.
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