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Vol.49, No.11, 860 ~ 868, 2011
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| Title |
| Effects of Driving Force and Surfactant on the Formation of Ag Powders |
| 이창근 Chang Geun Lee , 김동규 Dong Gyu Kim , 이상화 Sang Hwa Lee , 이해우 Hae Woo Lee , 이효종 Hyo Jong Lee , 김인수 In Soo Kim |
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| Abstract |
| This study was performed to investigate the effects of the driving force for reduction and the surfactant (polyacrylic acid) on the size of Ag particles. As the driving force for reduction increases, the size of particles decreases due to a decrease of initial nuclei-size. Also, an increase of pH increases the amount of ionized surfactant, which leads to a decrease of particle size due to the prevention of particle growth. Both the driving force and the surfactant may affect the particle size, but the surfactant appeared to be a more dominant factor than reduction potential in terms of controlling the particle size. An increase of surfactant in the range of pH=3-4 decreases the size of Ag particles, although the reduction potential also decreases. |
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| Key Words |
| electrical/electronic materials, chemical synthesis, nucleation, SEM, Ag powder |
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