Strong activation effect on a ru-co-c thin film catalyst for the hydrolysis of sodium borohydride.

ABSTRACT: In this work, we prepared a series of Ni foam supported Ru-Co, Ru-Co-B and Ru-Co-C catalysts in the form of columnar thin films by magnetron sputtering for the hydrolysis of sodium borohydride. We studied the activity and durability upon cycling. We found a strong activation effect for the Ru-Co-C sample which was the highest ever reported. This catalyst reached in the second cycle an activity 5 times higher than the initial (maximum activity 9310 ml.min^-1.g_CoRu^-1 at 25 °C). Catalytic studies and characterization of the fresh and used samples permitted to attribute the strong activation effect to the following factors: (i) small column width and amorphous character (ii) the presence of Ru and (iii) dry state before each cycle. The presence of boron in the i

SUBMITTER: Arzac GM 

PROVIDER: S-EPMC6021453 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature