摘要： A series of nanosized CoB catalysts supported on TiO2, Al2O3, and CeO2 were prepared. The catalysts were prepared by incipient-wetness impregnation. The sample was dried at 100 °C and then dispersed in water and reduced by an aqueous solution of sodium borohydrate at room temperature. An unsupported CoB cluster was used for comparison. The activities of the supported CoB catalysts were higher than that of unsupported one. The reaction rates of these supported CoB catalysts decreased in the order: CoB/TiO2 > CoB/Al2O3 > CoB/CeO2 > unsupported CoB. The reaction kinetics on various catalysts was also investigated. ► A new method to prepare supported CoB catalysts was developed. The supported CoB catalysts were much stable than unsupported CoB catalyst. CoB was also in amorphous state and highly dispersed on the support. ► The supported CoB catalysts were much more active than the unsupported CoB for hydrolysis of sodium borohydride solution at pH 13. ► The reaction rates of these supported CoB catalysts were CoB/TiO2 > CoB/Al2O3 > CoB/CeO2 >> unsupported CoB. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-03-01 出處： International journal of hydrogen energy, 2012-03, Vol.37 (5), p.4254-4258 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2011 Hydrogen Energy Publications, LLC. 版權： 2014 INIST-CNRS 識別號： ISSN: 0360-3199 識別號： EISSN: 1879-3487 識別號： DOI: 10.1016/j.ijhydene.2011.11.105 識別號： CODEN: IJHEDX
