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求助：将化学相关的一段中文翻译成英文
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帮忙将下面的中文翻译成英文。 锂是推动世界向前的重要金属。在过去的半个世纪里多种用于从盐湖卤水和海水中提取锂的方法象溶剂萃取法、沉淀法和离子交换吸附法等已被广泛地研究。其中吸附剂法由于某些特定的无机筛分材料展现出对Li+极高的的选择性和环境友好效应被认为是最有前途的方法。多种锂锰氧化物特别是包含尖晶石相的锂锰氧化物和有部分元素取代的吸附剂已经被研究和表征。然而粘结剂的堵塞和固相中的扩散阻力抑制了吸附剂的吸附能力，在Li+的脱嵌过程中锰的变价导致容易发生溶损。为了克服这些缺点，三维有序大孔(3DOM)可以被应用到具有形状记忆功能的锂离子筛结构中。应用于3DOM材料的胶体晶体模板来源于单分散的二氧化硅或聚合物微球例如聚甲基丙烯酸甲酯(PMMA)和聚苯乙烯。这些微球可以通过几种方法定向排列成紧堆结构，其胶体晶体提供26%体积分数的间隙空间供前驱液的渗透。在本项工作中，通过与溶胶-凝胶法结合的胶体晶体模板合成了组成为LiAlMnO4的包含铝的三维有序大孔锂锰氧化物，经过稀酸中H+的交换相应制备了新的吸附剂三维有序大孔HAlMnO4。进一步研究了它们的晶相、组成稳定性和离子交换性能，有效地揭示了这种新材料在结构与性能之间的关系。 |
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tomboy1120
金虫 (小有名气)
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xtulsf(金币+10, 翻译EPI+1): 2010-04-25 18:33
| Lithium is an important metal that impel the world going forward . In the past half-century for a variety of sea water from the salt lake brine and method of extracting lithium as solvent extraction, precipitation and ion exchange adsorption, etc., have been extensively studied.Adsorbent method in which inorganic screening because of some specific material to show on the Li + highly selective and environmentally friendly effect is considered the most promising approach. A variety of lithium manganese oxide spinel phase in particular, contains lithium manganese oxide and some elements have been studied to replace the adsorbent and characterization. However, blockage of binder and solid phase diffusion resistance inhibits the adsorption capacity of Li + in the process of de-embedded manganese dissolved easily lead to loss of variation.To overcome these shortcomings, three-dimensional ordered macroporous (3DOM) can be applied to the shape memory structure of the lithium ion sieve. 3DOM materials used in the template colloidal crystals from monodisperse silica or polymer beads such as polymethyl methacrylate (PMMA) and polystyrene. These microspheres can be arranged several ways directional tight heap structure, providing 26% of the colloidal crystal volume fraction of the gap space for liquid precursor infiltration.In the present work, with the sol - gel method combined with the colloidal crystal template synthesis of the composition of LiAlMnO4 containing three-dimensional ordered macroporous aluminum lithium manganese oxides, after H + exchange in dilute acid preparation of a new absorption corresponding dose three-dimensional ordered macroporous HAlMnO4. Further study their phase, composition stability and ion exchange properties, effectively reveal this new material in the relationship between structure and properties. |
2楼2010-04-24 09:58:06
