PARTICLE-SIZE AND SOL STABILITY IN METAL COLLOIDS
PARTICLE-SIZE AND SOL STABILITY IN METAL COLLOIDS
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DOI：
10.1007/bf01498565
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发表时间：
1972-01-01
期刊：
影响因子：
--
通讯作者：
FRENS, G
中科院分区：
文献类型：
--
作者：
FRENS, G
It is shown experimentally that the stability of metal sols depends on particle size. Sols with small particles are more stable against electrolyte coagulation than coarser suspensions. It is possible to separate metal particles of different radii by fractionated coagulation. Results are explained from the diminishedvan der Waalsattraction between small particles. Consequences for the repeptization of metal sols and for the measurement ofHamakerconstants are discussed. It is concluded that the smallness of the particles is a decisive factor for the stability of metal colloids.
