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反應(yīng)合成法制備Ag/SnO2復(fù)合材料中的反應(yīng)路線(xiàn)
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國(guó)家自然科學(xué)基金 (50874054)；“973”預(yù)研專(zhuān)項(xiàng)(2008CB617609)；NSFC-云南省聯(lián)合基金(U0837601)


Reaction Path of Ag/SnO2 Composites Prepared by Reaction Synthesis
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    摘要:

    采用反應(yīng)合成法制備Ag/SnO2復(fù)合材料，并從電子-原子層次詳細(xì)闡述反應(yīng)中合金中間化合物向富集區(qū)轉(zhuǎn)變、尋找過(guò)渡態(tài)最后生成穩(wěn)定相的過(guò)程。結(jié)果表明：Sn的活化性能高于Ag，氧源的參與對(duì)反應(yīng)過(guò)程起主導(dǎo)作用，且初始反應(yīng)混合物中分解游離態(tài)的O是氧化反應(yīng)能持續(xù)、徹底進(jìn)行的另一個(gè)重要途徑，最后預(yù)測(cè)出完整的反應(yīng)路徑

    Abstract:

    Ag/SnO2 composite materials were prepared by reaction synthesis, and the transformation of the alloy intermediate compound to the alloy-rich region, looking for a stable transition state to generate the final phase, was elaborated from the electron-atom level. The results indicate that the activation properties of Sn are higher than Ag, and the participation of oxygen source plays a leading role to the reaction process. The free state O decomposition in the initial reactive mixture is another important way to make the oxidation reaction proceed continually and thoroughly. Finally the complete reaction path was predicted.

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劉琳靜,陳敬超,馮 晶,于 杰,杜曄平.反應(yīng)合成法制備Ag/SnO2復(fù)合材料中的反應(yīng)路線(xiàn)[J].稀有金屬材料與工程,2011,40(5):935~940.[Liu Linjing, Chen Jingchao, Feng Jing, Yu Jie, Du Yeping. Reaction Path of Ag/SnO2 Composites Prepared by Reaction Synthesis[J]. Rare Metal Materials and Engineering,2011,40(5):935~940.]
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  • 收稿日期:2010-05-28
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