Preparation of amorphous Ni-B alloy: the effect of feeding order, precursor salt, pH and adding rate

I Some preparation parameters of amorphous Ni-B alloy were systematically studied. It is found that high-surface-area Ni-B can be readily prepared by adding the Ni2+ I Solution to the borohydride solution. It is also found that the higher the pH of the Ni2+ solution, the higher the surface area and boron content in the resulting Ni-B alloy. The influences of the precursor salt and the adding rate on the surface area and boron content can be mainly attributed to the effect of pH. (C) 2002 Elsevier Science B.V. All rights reserved.