采用射频等离子体技术制备新型Cu—Co/SiO催化剂.与直接焙烧制备的样品相比,射频等离子体处理 提高了催化剂的比表面积,显著增大了活性物种Co的表面含量,有效改进了催化剂的还原性能.以CO加氢合 成低碳混合醇为模型反应,在563K,5.0MPa,6000h一, H):V(CO)=I. ...
(2) R a re ea rth c om ple x c oa t ed sil ic a na nop ax t icl e 图1 Si0 2/Eu 配 合物核一壳 复合粒子 的形成 示意 图 F ig.1 Sc hema tic illust ra tion of rar e ear th com plex co ated on nano-S iO 2 to f or m cor e-shell nan opar ticles ...
PDMS∕SiO2纳米复合材料的制备及其实践应用.pdf,第47卷第3期 应用化工 Vol.47 No.3 2018年3月 Applied Chemical Industry Mar.2018 PDMS/ SiO 纳米复合材料的制备及其应用 2 1,2 1,2 1,2 2 3 阮晓光 ,蔡东宝 ,叶向东 ,区达铨 ,戴煜 (1.西安建筑科技大学 机电工程学院,陕
Chemicals* Sodium hydroxide Methanol Toluene n-heptane Silane Oleic Acid MW (g/mol) 40.01 32.04 92.14 100.20 32.12 282.47 Density (g/cm3) 2.16 0.79 0.87 0.68 1.31 0.895 Formula NaOH CH3OH C7H8 C7H16 H4Si C18H34O2 Application To make the porous medium oil-wet Used for Surface ...
tM8ivSOeiO.si2Wd/8ehZse.nrWOea,hsaewnndhPe(Tn8FZPEnTOiFn&Ete8irSnaitcOetre2ad)c, wtloeidwth-wp4iotShtieOn42Zt,ian4lOZrneadOnr/de4gS8iiZoOnn2Os, 4w, StehirOee2lr/oe4cdZanrlieOzge,ido(n4mZsanwinOelr&yea4srSpoirOuena2)dd, across the polymer and increased on the other...
正长石是一种天然的硅酸盐矿,其组成可看作SiO2中部分Si原子被Al、K原子取代而成。当有25%的Si原子被Al原子取代(不足的价数由K原子补充)时,正长石的化学组成可表示为A.KAlSi3O6B.KAlSi3O8C.K2AlSi3O10D.KAl2Si6O14的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashua
Preparation of tailed preparation steps are rtehpeosratneddwinichousrtrpurcetvuiroeu: s(Clyo-pxNuib1l−ixsFhee2dOp4;axp =er 0s4.97,/4S8.iO2/TiO2) nanocomposite. The de- Preparation of carbon nanoparticles (C‑dots). C-dots were prepared according to the ...
www.nature.com/scientificreports OPEN Nano silicated‑FeAl2O4 functionalized by DL‑alaninium nitrate ionic liquid (FeAl2O4 ‑SiO2@[DL ‑Ala][NO3]) as versatile promotor for aqua‑mediated synthesis of spiro[chromenopyrazole‑indene‑ triones and sp iro [c...
(FTIR)等测试手段对材料进行了表征,结果表明:SiO2一TiO2多孔复合材料中存在Ti—O~n、si一0一si和Ti一0一si3种化学 键。将制备的多孔复合材料进一步一sOH功能化(SiO一TiO2一SO3H),以水溶液中的碱性品红为目标污染物,考察了改性材 料对染料的吸附性能,结果显示,经一S0H功能化的材料具有较优的吸附性能,吸附率达...
The white frame in (a) shows the EDX-mapping area which is pointed out separately in (c). The images (d–f) show the enrichment of the elements Al, Si, and Zr. An overlay representation of the lateral distribution of Al and Zr is shown in (g). i.e. from 2,290–2,330 eV....