导言卤化银乳剂的显影,实质上就是将银离子还原成金属银,而由银核加以催化。由于银原子的不断淀积,银核才能继续生长,如同电极,一方面接受电子;另一方面吸附离子。“化学显影”时的银电极,与卤化银相接触,电极在银和溶液的接触面接受电子,在银和卤化银的界面上吸附银离子。在银和 Introduction The development of silver halide emulsions is essentially the reduction of silver ions to metallic silver, catalyzed by a silver core. Due to the continuous deposition of silver atoms, the silver nucleus can continue to grow, as the electrode, on the one hand accepts electrons; on the other hand, adsorbs ions. The silver electrode in “chemical development” is in contact with the silver halide, the electrode receives electrons at the interface of the silver and the solution, and adsorbs silver ions at the interface of the silver and the silver halide. In silver and