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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/118/04/0345-0349

    • Keywords

       

      Isosteric heat of adsorption; charge transfer; equalized electro negativity; chemical hardness; zeolites

    • Abstract

       

      Considering the direct correlation between charge transfer and heat of adsorption, we have equated the isosteric heat of adsorption (Qst) with Nalewajski’s charge transfer equation involving equalized electronegativities and chemical hardness given in the literature. The equation is then tested and compared with the experimental heat of adsorption values of organic molecules over zeolites given in the literature with the average percentage deviation of 15·9. Other similar types of equations of charge transfer affinity are also tested. Various semi-empirical equations based on Barrer’s approach of the determination ofQst and neural network method have been proposed, tested and compared for the first time

    • Author Affiliations

       

      N V K Dutt1 S J Kulkarni1 Y V L Ravikumar1 B S N Murthy1

      1. Indian Institute of Chemical Technology, Hyderabad - 500 007

    • Dates

       
      Published
      July 2006
      Manuscript received
      4 June 2005
      Manuscript revised
      17 November 2005

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