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• 2018-12-07 19:32發(fā)布了問(wèn)答

  這個(gè)作業(yè)怎么做？新型納米材料MFe 2

  新型納米材料MFe 2 O x (3

  322人看過(guò)

• 2018-11-25 13:57發(fā)布了問(wèn)答

  請(qǐng)幫翻譯

  Boron nitride nanotubes， nanocapsules and nanocages were fabricated by arc-melting LaB6 and boronLaB6 powder compacts in a nitrogenargon gas atmosphere， which were determined by high-resolution electron microscopy and energy dispersive X... Boron nitride nanotubes， nanocapsules and nanocages were fabricated by arc-melting LaB6 and boronLaB6 powder compacts in a nitrogenargon gas atmosphere， which were determined by high-resolution electron microscopy and energy dispersive X-ray spectroscopy. The diameters of the boron nitride nanotubes， nanocapsules and nanocages were in the range of 10
  100 nm， 10
  30 nm and 80 nm， respectively. The present work indicates that La could be a good candidate as a catalyst to produce the boron nitride fullerene materials by changing the ratio of LaB6B.
  2001 Elsevier Science B.V. All rights reserved. 展開(kāi)

  330人看過(guò)

• 2018-11-16 13:26發(fā)布了問(wèn)答

  顧剛的背景資料

  　

  228人看過(guò)

• 2018-06-04 00:06發(fā)布了問(wèn)答

  百藻納除甲醛好嗎？

  　

  406人看過(guò)

• 2016-09-10 12:50發(fā)布了問(wèn)答

  酵素和益生菌一起吃嗎

  酵素和益生菌一起吃嗎... 酵素和益生菌一起吃嗎 展開(kāi)

  781人看過(guò)

• 2014-04-26 02:40發(fā)布了問(wèn)答

  催化反應(yīng)大幅降量，吸收穩(wěn)定該如何操作！

  催化裝置反應(yīng)短時(shí)間內(nèi)大幅降量，吸收穩(wěn)定如何操作？關(guān)鍵的注意點(diǎn)、原則是什么？

  486人看過(guò)

• 2013-10-19 06:17發(fā)布了問(wèn)答

  生物體內(nèi)的酶催化劑與化學(xué)中的催化劑有何不同與相同之處

  　

  425人看過(guò)

• 2012-03-15 17:13發(fā)布了問(wèn)答

  苯環(huán)與氫氣加成可以得到環(huán)己烷 但環(huán)己烷怎么變成苯環(huán)呢？

  　

  1097人看過(guò)

• 2008-05-24 02:14發(fā)布了問(wèn)答

  納米的組成

  詳細(xì)一點(diǎn)?。。。。?！

  309人看過(guò)