File Name : fig.s1.jpg

Caption : fig. s1 element mapping of the cah2-cuo composite (mass ratio cah2:cuo=10:1) prepared by ball milling before reaction.

File Name : fig.s2.jpg

Caption : fig. s2 element mapping of the solid product of the cah2-cuo composite (mass ratio cah2:cuo=10:1) after coupling.

File Name : fig.s3.tif

Caption : fig. s3 xrd pattern of the product of pure cah2 (without adding cuo) after the coupled reaction

File Name : fig.s4.tif

Caption : fig. s4 ir spectrum of the product of the mg(oh)2-cuo and mgh2-cuo composites after the coupled reaction.