英语翻译Elemental analyses of the samples are summa-rized in Table 1.The most striking feature of the results is that the content of aluminum ions decreased progressively while that of silicon ions increased as crystallization proceeded.The incre

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英语翻译Elemental analyses of the samples are summa-rized in Table 1.The most striking feature of the results is that the content of aluminum ions decreased progressively while that of silicon ions increased as crystallization proceeded.The incre
英语翻译
Elemental analyses of the samples are summa-rized in Table 1.The most striking feature of the results is that the content of aluminum ions decreased progressively while that of silicon ions increased as crystallization proceeded.The increase in silicon content can be explained by a loss of colloidal silica particles at the washing stage of the samples; however,the decrease in aluminum samples; however,the decrease in aluminum content is rather puzzling and may be explained by the presence of excess aluminum ions as boehm-ite gel particles while some part of the phosphate ions are present in solution.
From the results mentioned above we suggest the following scheme for the crystallization of Ni-SAPO-34 by the rapid crystallization method.
(1) At the early stage of the crystallization,an aluminophosphate-like framework is formed.Most of the silicon ions are present as colloidal silica particles.At this stage,Ni2+ ions are present as octahedral coordination and presumably are occluded in the defects of SAPO-34.
(2) Crystallization proceeds with increasing temperature and silicon ions begin to be incorporated into the framework.Ni2+ ions fall into the tetrahedral sites,forming Ni-SAPO-34 at the final stage of the crystallization.

英语翻译Elemental analyses of the samples are summa-rized in Table 1.The most striking feature of the results is that the content of aluminum ions decreased progressively while that of silicon ions increased as crystallization proceeded.The incre
元素分析的样本,总结在表1.最突出的特点,结果是内容,铝离子逐步下降,而结晶进行硅离子增加.硅含量增加,可以解释的损失的胶体二氧化硅粒子在洗涤阶段的样品；然而,减少铝样品；然而,减少铝的内容是相当令人费解和可以解释的存在过剩的铝离子boehm-ite凝胶颗粒,而部分的磷酸根离子在目前的解决方案.
从以上结果我们建议以下方案的结晶,ni-sapo-34的快速结晶的方法.
（1）在早期阶段的结晶,一个aluminophosphate-like框架形成.大多数的硅离子存在的胶体二氧化硅粒子.在这个阶段,Ni 2 +离子存在八面体协调和大概是闭塞的缺陷研究.
（2）结晶收益增加温度和硅离子开始纳入框架.Ni 2+离子落入四面体的网站,形成ni-sapo-34在最后阶段的结晶.

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