Hydrogen Generation by Reforming of Sodium Hypophosphite on Cobalt-Boron Oxides Containing Catalyst
- 1 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 2 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 3 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 4 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 5 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 6 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
- 7 Raphael Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
Abstract
Cobalt-Boron oxides containing catalyst CoO · B 2 O 3 (CoB 2 O 4 ) are synthesized for hydrogen generation by catalytic reforming of basic solution of sodium hypophosphite (NaH 2 PO 2 ) and identified by chemical and X-ray analysis. Reforming is performed in temperature range of 30 ° C - 80 ° C. Reaction rate constants at each value of temperature (k 30 ° C = 8.53 × 10 ? 4 s ? 1 ; k 40 ° C = 1.62 × 10 ? 4 s ?? ; k 50 ° C = 3.06 × 10 ? 3 s ? 1 ; k 60 ° C = 5.06 × 10 ? 3 s ? 1 ; k 80 ° C = 1.39 × 10 ? 2 s ? 1 ), temperature coefficient of rate of chemical reaction ( γ = 0.917) and activation energy ( E A = 49.59 kJ · mol ? 1 ) are calculated.
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