V. O. Zazhigalov, O. A. Diyuk, I. V. Bacherikova, N. S. Kopachevska
{"title":"Mechanochemical Modification of Vanadium Phosphorus Oxide Catalysts of Ethane Oxidative Dehydrogenation to Ethylene","authors":"V. O. Zazhigalov, O. A. Diyuk, I. V. Bacherikova, N. S. Kopachevska","doi":"10.1007/s11237-025-09859-3","DOIUrl":null,"url":null,"abstract":"<p>Two-stage mechanochemical treatment (MCT) of initial vanadium oxide and vanadyl hydrogen phosphate hemihydrate (VO(HPO<sub>4</sub>)·0.5H<sub>2</sub>O) permits to obtain the catalysts of ethane oxidative dehydrogenation (ODE) to ethylene with higher product yield and productivity. The V<sub>2</sub>O<sub>5</sub>, VO(HPO<sub>4</sub>)·0.5H<sub>2</sub>O samples (both initial and after MCT in air and ethanol) have been characterized by XRD, SEM, XPS and nitrogen adsorption technique. Activation of the catalysts by the reaction mixture leads to vanadyl pyrophosphate (VO)<sub>2</sub>P<sub>2</sub>O<sub>7</sub> (VPP) obtaining. After activation of VO(HPO<sub>4</sub>)·0.5H<sub>2</sub>O (MCT in air), the VPP mainly forms with an orientation along the (001) plane. These catalysts demonstrate higher results in ODE: 28-30% yield of ethylene and 0.15-0.16 g/(g·h) product productivity.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"61 2","pages":"131 - 140"},"PeriodicalIF":0.8000,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical and Experimental Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11237-025-09859-3","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two-stage mechanochemical treatment (MCT) of initial vanadium oxide and vanadyl hydrogen phosphate hemihydrate (VO(HPO4)·0.5H2O) permits to obtain the catalysts of ethane oxidative dehydrogenation (ODE) to ethylene with higher product yield and productivity. The V2O5, VO(HPO4)·0.5H2O samples (both initial and after MCT in air and ethanol) have been characterized by XRD, SEM, XPS and nitrogen adsorption technique. Activation of the catalysts by the reaction mixture leads to vanadyl pyrophosphate (VO)2P2O7 (VPP) obtaining. After activation of VO(HPO4)·0.5H2O (MCT in air), the VPP mainly forms with an orientation along the (001) plane. These catalysts demonstrate higher results in ODE: 28-30% yield of ethylene and 0.15-0.16 g/(g·h) product productivity.
期刊介绍：
Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as:
a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials;
b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions;
c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
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