With the increasing technology, the need for energy increases and the amount of fossil fuels available decreases over time. The decrease in fossil fuels and the increase in energy needs have prompted researchers to find new sources for renewable energy sources. Hydrogen energy is one of these renewable energy sources. Sodium borohydride (NaBH4) is a good source and carrier of hydrogen. Half of the hydrogen released in the hydrolysis of NaBH4 comes from water, which is a great advantage. In this study, carbon nanotube(CNT) supported Co-Cr-B catalyst was synthesized to be used in NaBH4 hydrolysis. The characterization of the synthesized catalyst was carried out with SEM, EDX, XRD and BET. The effects of parameters such as NaOH concentration, NaBH4 concentration, amount of catalyst and temperature on NaBH4 hydrolysis were investigated. While the hydrogen production rate of the unsupported Co-Cr-B catalyst was 3560 ml.g -1. dk -1 , the hydrogen production rate of the CNT supported Co-Cr-B catalyst was determined as 6600 ml.g -1 .dk -1 . The kinetic order of hyrolysis and activation energy of NaBH4 were found as 0.2 and 55.88 kJ/mol, respectively.
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