Amorphous Ni-Co-B Catalyst for Hydrolysis of NaBH4 in Alkaline Solution
Amorphous Ni-Co-B catalyst was synthesized by a chemical reduction method, and followed by a heat-treating at 100°C, then characterized by X-ray diffraction (XRD), Scanning electronic microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmetr-Teller (BET) analysis, and adopted to help accelerating hydrolysis reaction of NaBH4 alkaline solution. It is proved that the amorphous Ni-Co-B catalyst is not a simple combination of elemental Ni, Co and B, but a multiplex metal boride. It exhibits an maximum hydrogen generation rate of 210 ml/min/(g catalyst) at 100% H2 utilization, which is potentially to give a successive H2 supply for proton exchange membrane fuel cells.
Yi Tan and Dongying Ju
C. Wu et al., "Amorphous Ni-Co-B Catalyst for Hydrolysis of NaBH4 in Alkaline Solution", Materials Science Forum, Vols. 675-677, pp. 33-36, 2011