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Acta Chimica Sinica ›› 1998, Vol. 56 ›› Issue (5): 514-520. Previous Articles
Original Articles
侯万国;夏春友;韩书华;王果庭;张春光
发布日期:
HOU WANGUO;XIA CHUNYOU;HAN SHUHUA;WANG GUOTING;ZHANG CHUNGUANG
Published:
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In this paper, the physical meaning of zero point of charge measured by acid-base potentiometric titration (PT) is discussed and it is considered to be zero point of net charge (ZPNC). The interrelations of ZPNC (pHZPNC), zero point of variable charge (pHZPVC), permanent charge density (σP), variable charge density (σV) and total net surface charge density (σT) are theoretically analyzed. The pHZPNC and σP of the nanoparticles of aluminum-magnesium hydroxide are determined by PT method. Effects of electrolyte and pH on various electrochemical parameters are investigated. In addition, effect of CO3^2^- on the results obtained via PT method is also studied.
Key words: POTENTIOMETRIC TITRATION, CHARGE DENSITY, NANOPHASE MATERIALS
CLC Number:
O648
HOU WANGUO;XIA CHUNYOU;HAN SHUHUA;WANG GUOTING;ZHANG CHUNGUANG. Studies on zero point of charge and charge density of the nanoparticles of aluminum magnesium hydroxide[J]. Acta Chimica Sinica, 1998, 56(5): 514-520.
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