Features of Hydrolysis of Concentrated Aqueous Alkaline Solutions of NaBH4 on Co/TiO2 Catalyst

被引:1
作者
Shabunya, S., I [1 ]
Minkina, V. G. [1 ]
Kalinin, V., I [1 ]
机构
[1] Natl Acad Sci Belarus, Luikov Heat & Mass Transfer Inst, Minsk 220072, BELARUS
关键词
sodium borohydride; catalytic hydrolysis; cobalt; schemes of sorption and kinetic processes; HYDROGEN GENERATION; SODIUM-BOROHYDRIDE; B CATALYST; KINETICS; OXIDE;
D O I
10.1134/S002315842205010X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Kinetic experiments were carried out on the hydrolysis of concentrated aqueous and aqueous alkaline solutions of NaBH4 with a Co/TiO2 catalyst. The experiments in the aqueous NaBH4 solutions were performed at molal concentrations of 0.25, 1, and 4 mol/kg. In the aqueous alkaline solutions with molal NaBH4 concentrations of 0.25 and 1 mol/kg, the molal NaOH concentrations were varied in the range 0.05-8 mol/kg. The activation energies in the aqueous solution and the aqueous alkaline solutions were found to be 64.3 and 53.6 kJ/mol, respectively. Features of the kinetic curves and the possible kinetic schemes were discussed.
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页码:585 / 592
页数:8
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