摘要
在合成(NH_4)_3PMo_(12)O_(40)和K_3PMo_(12)O_(40)的基础上,用改进的方法合成了(NH_4)_3AsMo_(12)O_(40)和K_3AsMo_(12)O_(40),以FTIR、XRD、TG-DTA、ESR和TPR等手段对其结构、热稳定性和还原性进行了考查,当中心原子由P换成As后,杂多钼酸盐热稳定性下降,还原性提高.
Four heteropolymolybdates with (XMo12O40)3 anion of different center atom(X = P, As) have been synthesized, among them (NH4)3AsMo12O40 and K3AsMo12O40 synthesized by improved method. The structure, thermal stability and reducibility of each compound were examined by means of FTIR, XRD, TG-DTA, ESR, TPR, and so on. It is found that thermal stability decreases and reducibility increases when the center atom P changes into As.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第1期72-75,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
杂多钼酸盐
热稳定性
还原性
P
AS
Heteropolymolybdate, Synthesis, Thermal stability, Reducibility
