24小時熱門版塊排行榜

返回列表

本帖產(chǎn)生 1 個翻譯EPI ，點(diǎn)擊這里進(jìn)行查看

xtulsf

銅蟲 (小有名氣)

應(yīng)助: 0 (幼兒園)
金幣: 290.4
帖子: 265
在線: 13.2小時
蟲號: 450150
注冊: 2007-11-03
專業(yè): 高分子合成化學(xué)

[交流] 求助：將化學(xué)相關(guān)的一段中文翻譯成英文

幫忙將下面的中文翻譯成英文。
鋰是推動世界向前的重要金屬。在過去的半個世紀(jì)里多種用于從鹽湖鹵水和海水中提取鋰的方法象溶劑萃取法、沉淀法和離子交換吸附法等已被廣泛地研究。其中吸附劑法由于某些特定的無機(jī)篩分材料展現(xiàn)出對Li+極高的的選擇性和環(huán)境友好效應(yīng)被認(rèn)為是最有前途的方法。多種鋰錳氧化物特別是包含尖晶石相的鋰錳氧化物和有部分元素取代的吸附劑已經(jīng)被研究和表征。然而粘結(jié)劑的堵塞和固相中的擴(kuò)散阻力抑制了吸附劑的吸附能力，在Li+的脫嵌過程中錳的變價導(dǎo)致容易發(fā)生溶損。為了克服這些缺點(diǎn)，三維有序大孔(3DOM)可以被應(yīng)用到具有形狀記憶功能的鋰離子篩結(jié)構(gòu)中。應(yīng)用于3DOM材料的膠體晶體模板來源于單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。這些微球可以通過幾種方法定向排列成緊堆結(jié)構(gòu)，其膠體晶體提供26%體積分?jǐn)?shù)的間隙空間供前驅(qū)液的滲透。在本項(xiàng)工作中，通過與溶膠-凝膠法結(jié)合的膠體晶體模板合成了組成為LiAlMnO4的包含鋁的三維有序大孔鋰錳氧化物，經(jīng)過稀酸中H+的交換相應(yīng)制備了新的吸附劑三維有序大孔HAlMnO4。進(jìn)一步研究了它們的晶相、組成穩(wěn)定性和離子交換性能，有效地揭示了這種新材料在結(jié)構(gòu)與性能之間的關(guān)系。

回復(fù)此樓

» 收錄本帖的淘帖專輯推薦

海水提鋰

» 猜你喜歡

0703化學(xué)336分求調(diào)劑已經(jīng)有6人回復(fù)
304求調(diào)劑已經(jīng)有9人回復(fù)
293求調(diào)劑已經(jīng)有13人回復(fù)
281求調(diào)劑（0805）已經(jīng)有8人回復(fù)
環(huán)境領(lǐng)域全國重點(diǎn)實(shí)驗(yàn)室招收博士1-2名已經(jīng)有3人回復(fù)
材料專碩306英一數(shù)二已經(jīng)有10人回復(fù)
301求調(diào)劑已經(jīng)有6人回復(fù)
一志愿天津大學(xué)化學(xué)工藝專業(yè)（081702）315分求調(diào)劑已經(jīng)有7人回復(fù)
302求調(diào)劑已經(jīng)有6人回復(fù)
26博士申請已經(jīng)有3人回復(fù)

1樓 2010-04-23 18:24:48

已閱關(guān)注TA 給TA發(fā)消息送TA紅花 TA的回帖

tomboy1120

金蟲 (小有名氣)

翻譯EPI: 1
應(yīng)助: 0 (幼兒園)
金幣: 826.8
散金: 3
紅花: 1
帖子: 114
在線: 21.6小時
蟲號: 941818
注冊: 2010-01-13
性別: MM
專業(yè): 食品加工技術(shù)

xtulsf(金幣+10, 翻譯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.

贊一下

回復(fù)此樓

2樓2010-04-24 09:58:06