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• 2018-12-08 06:40發(fā)布了問(wèn)答

  家用活性炭的復(fù)合技術(shù)的發(fā)展

  　

  393人看過(guò)

• 2018-11-11 19:34發(fā)布了問(wèn)答

  求助，想問(wèn)下怎么樣將金屬催化劑均勻涂覆在ITO導(dǎo)電玻璃上面

  　

  273人看過(guò)

• 2017-11-27 14:17發(fā)布了問(wèn)答

  如何GX電解水，正負(fù)極分別用什么金屬?

  　

  614人看過(guò)

• 2017-09-16 00:25發(fā)布了問(wèn)答

  酶工程 為什么一般的酶都在常溫常壓ph中性條件下進(jìn)行催化

  　

  453人看過(guò)

• 2017-03-09 11:00發(fā)布了問(wèn)答

  ziegler和ziegler-natta催化劑的區(qū)別

  　

  275人看過(guò)

• 2016-05-11 03:05發(fā)布了問(wèn)答

  氟化氫的作用用途

  　

  907人看過(guò)

• 2012-12-01 01:05發(fā)布了問(wèn)答

  2NO+2CO=2CO2+N2的反應(yīng)條件是什么

  　

  406人看過(guò)

• 2012-11-08 16:10發(fā)布了問(wèn)答

  本人制備納米鈦酸鋇，但在干燥過(guò)程中團(tuán)聚嚴(yán)重，求高手指點(diǎn)如何干燥。

  　

  257人看過(guò)

• 2011-05-18 04:28發(fā)布了問(wèn)答

  Lindler在有機(jī)化學(xué)中代表什么物質(zhì)，我只知道它是一種催化劑

  　

  580人看過(guò)

• 2009-03-24 13:04發(fā)布了問(wèn)答

  高分求高手翻譯，不要機(jī)械翻譯

  Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials，because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review fo... Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials，because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review focuses on the recent research advances in bimetallic DENs with respect to their synthesis，characterization，and applications as catalysts.Bimetallic DENs can be made mainly via three routes:co-complexation，sequential loading，and partial displacement.The research in bimetallic DENs has been significantly promoted by the advancement of characterization instruments.The performances of bimetallic DENs as homogeneous and heterogeneous catalysts in organic synthesis have been compared with both monometallic DENs and their physical mixtures.It is concluded that the synergistic electronic effect in bimetallic nanoparticles enhances their catalytic activities. 能翻譯多少都可以的 展開(kāi)

  368人看過(guò)

• 2009-02-22 10:26發(fā)布了問(wèn)答

  塔羅牌de鴨鴨，摩爾莊園的牛奶

  大家好??！我是占卜師“小喬”，希望和大家合作愉快。(⊙o⊙)…首先，我要說(shuō)明一下，我的目的是讓大家都能感受到我對(duì)你們的----愛(ài)----啊----。呵呵！沒(méi)什么啦。主要就是想給大家了解一... 大家好??！我是占卜師“小喬”，希望和大家合作愉快。(⊙o⊙)…首先，我要說(shuō)明一下，我的目的是讓大家都能感受到我對(duì)你們的----愛(ài)----啊----。呵呵！沒(méi)什么啦。主要就是想給大家了解一下。拜拜。 我的給分標(biāo)準(zhǔn)：字越多越好，打不能瞎打字，要符合常理，標(biāo)點(diǎn)符號(hào)不算! 展開(kāi)

  705人看過(guò)

• 2007-01-13 00:36發(fā)布了問(wèn)答

  中學(xué)化學(xué)反應(yīng)中有關(guān)催化反應(yīng)的例子

  　

  720人看過(guò)