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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BUJ7-0015-0089

Czasopismo

Polish Journal of Chemistry

Tytuł artykułu

The Effect of Potassium on Ni/Al2O3 Catalysts for CO/H2 Reaction

Autorzy Znak, L.  Zieliński, J. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN The effect of potassium on Ni/Al2O3 catalyst in relation to CO/H2 reaction was studied. XRD examinations and extensive adsorption measurements (H2, O2 and CO) have shown a small effect on nickel dispersion. At the same time the measurements of thermal effect revealed that potassium decreases heat of O2 adsorption and increase heat of CO adsorption, which proves that the promoter is located on nickel surface. Temperature-programmed studies showed that potassium significantly retards hydrogenation of pre-adsorbed CO and this result was confirmed by steady state examination of CO/H2 reaction.
Słowa kluczowe
EN nickel/alumina catalyst   nickel dispersion   effect of potassium   CO hydrogenation  
Wydawca Polskie Towarzystwo Chemiczne
Czasopismo Polish Journal of Chemistry
Rocznik 2009
Tom Vol. 83, nr 10
Strony 1797--1807
Opis fizyczny Bibliogr. 35 poz., rys.
Twórcy
autor Znak, L.
autor Zieliński, J.
  • Institute of Physical Chemi try, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland, jerzy@ichf.edu.pl
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