Preparation of Pt/Al2O3 catalyst in CTAB microemulsion and kinetics of m-chloronitrobenzene hydrogenation
- Autores: Li F.1, Cao B.1, Ma R.1, Song H.2, Song H.1
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Afiliações:
- Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
- Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province
- Edição: Volume 90, Nº 2 (2016)
- Páginas: 276-281
- Seção: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/167678
- DOI: https://doi.org/10.1134/S0036024416020151
- ID: 167678
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Resumo
Pt/Al2O3 catalyst was prepared successfully by a microemulsion method using cetyltrimethylammonium bromide (CTAB) as the surfactant and N2H5OH as the reducing agent. Selective hydrogenation of m-chloronitrobenzene (m-CNB) was used as a probe to investigate how parameters affect the preparation of catalysts via the microemulsion method. Transmission electron microscope (TEM) and selected-area electron diffraction (SAED) show that Pt particles (mean size 3 nm) were distributed uniformly on the catalyst and were in polycrystalline structure. Experiments on m-CNB selective hydrogenation show that at 303 K and hydrogen pressure of 0.1 MPa, the turnover frequency (TOF) was 0.216 s–1, the m-CNB conversion was 99.6% and the m-CAN selectivity was 98.9%, indicating high dechlorination inhibition effect. The reaction was an approximately first-order process with apparent activation energy of 26.92 kJ mol–1.
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Sobre autores
Feng Li
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: lifeng@nepu.edu.cn
República Popular da China, Daqing, 163318
Bo Cao
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: lifeng@nepu.edu.cn
República Popular da China, Daqing, 163318
Rui Ma
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: lifeng@nepu.edu.cn
República Popular da China, Daqing, 163318
Hualin Song
Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province
Email: lifeng@nepu.edu.cn
República Popular da China, Mudanjiang, 157011
Hua Song
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Autor responsável pela correspondência
Email: lifeng@nepu.edu.cn
República Popular da China, Daqing, 163318