氢超电势
- 网络hydrogen overpotential;hydrogen overpotetial
氢超电势-
稳态时，镍层表面氢超电势比钯高，氢在镍表面的氧化比在钯表面要困难。
In steady permeation state , nickel coating needs higher hydrogen over-potential than palladium coating to oxidize hydrogen entirely . So hydrogen oxidation on nickel coating is more difficult than on palladium .
-
利用氢气泡模板可简便电沉积制备金属泡沫薄膜分级多孔结构，但文献曾认为由于析氢超电势低，不能用此法制备金泡沫薄膜。
Metallic foams with hierachical porous structure could be prepared conveniently by electrodeposition utilizing hydrogen bubble dynamic templates . However , it was once considered that Au foams could not be prepared in this way for the overpotential of hydrogen evolution was low .