Methods for Determining the Metal Crystallite Size of Ni Supported Catalysts

被引：41

作者：

Geyer, Reinhard ^{[1
]}

Hunold, Juergen ^{[1
]}

Keck, Michael ^{[1
]}

Kraak, Peter

Pachulski, Axel ^{[1
]}

Schoedel, Rainer

机构：

[1] KataLeuna GmbH Catalysts, Haupttor, D-06237 Leuna, Germany

来源：

CHEMIE INGENIEUR TECHNIK | 2012年 / 84卷 / 1-2期

关键词：

Catalysts; Chemisorption; Crystallite size; Nickel; Temperature programmed reaction; X-ray diffraction; NICKEL-BASED CATALYSTS; X-RAY-DIFFRACTION; NI/AL2O3; CATALYSTS; PARTIAL OXIDATION; HYDROGENATION; METHANE; CHEMISORPTION; REDUCTION; PERFORMANCE; SYNGAS;

D O I：

10.1002/cite.201100101

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Catalysts containing transition metals like nickel are frequently used in technical hydrogenation reactions. Typically their activity and selectivity are determined via metal dispersion. XRD, H2 TPD, volumetric chemisorption of H2 and CO pulse chemisorption were applied to determine the Ni crystallite size of Ni-containing catalysts. The methods were compared with regard to their information content and validity as well as their applicability in quality control during industrial manufacturing of catalysts. Pulse chemisorption of CO showed the best results for utilization in quality control.

引用

页码：160 / 164

页数：5

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