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球磨MgNi非晶儲(chǔ)氫合金電化學(xué)性能的研究
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國(guó)家自然科學(xué)基金(50772133)；中南大學(xué)粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題(2008112009)


Effect of the Milling Parameters on the Electrochemical Properties of Milled Amorphous MgNi Hydrogen Storage Alloy
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    摘要:

    采用機(jī)械合金化法，制備了MgNi非晶儲(chǔ)氫合金。探討了球磨生成非晶的機(jī)制。用SEM和XRD分析了合金的表面形貌和相組成。研究不同的球磨工藝如球料比、球徑配比、轉(zhuǎn)速以及球磨時(shí)間對(duì)合金電極電化學(xué)性能的影響。所制備的MgNi非晶合金電極的放電容量最高為450 mAh/g，但是容量衰減較快

    Abstract:

    Amorphous MgNi hydrogen storage alloy was synthesized by mechanically alloying (MA) with the proper milling parameters. The mechanism of amorphous formation by milling was discussed. The surface morphology and phases were analyzed by SEM and XRD. The effect of different parameters such as the mass ratio of ball to powder, the number and size of the balls, and the milling rate and time on electrochemical properties was tested. The maximum discharge capacity of the prepared amorphous MgNi alloy electrode was 450 mAh/g, but the capacity deteriorated fast

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黃紅霞,黃可龍,劉素琴,陳東洋.球磨MgNi非晶儲(chǔ)氫合金電化學(xué)性能的研究[J].稀有金屬材料與工程,2010,39(4):702~706.[Huang Hongxia, Huang Kelong, Liu Suqin, Chen Dongyang. Effect of the Milling Parameters on the Electrochemical Properties of Milled Amorphous MgNi Hydrogen Storage Alloy[J]. Rare Metal Materials and Engineering,2010,39(4):702~706.]
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  • 收稿日期:2009-04-23
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