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碱性BH_4^-在铜阳极上的电化学行为 被引量：3

The electrochemical behaviors of alkaline BH_4^- on copper anode
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摘要 用线性极化方法研究了铜对BH4-氧化的电化学行为。室温下,在2.0 mol/L NaBH4+2.0 mol/L NaOH的阳极电解液中,由铜阳极、铂阴极和NRE-212膜组成的直接硼氢化物燃料电池(DBFC)的最大电流密度和最大功率密度分别为235mA/cm2和46.14 mW/cm2;用恒流法以20 mA/cm2进行寿命测试,电压在0.6 V左右稳定达50 h。扫描电镜(SEM)及X射线衍射(XRD)测试的结果表明:实验中阳极表面形貌不断变化,但始终为铜单质。 The electrochemical behaviors of copper on the oxidation of borohydride was investigated by liner polarization. In the anolyte of 2.0 mol/L NaBH4 ＋ 2.0 mol/L NaOH, the maximum current density and maximum power density of direct borohydride fuel cell （DBFC） which constructed by copper anode, platinum cathode and NRE-212 membrane at room temperature was 235 mA/cm^2 and 46.14 mW/cm^2, respectively. The voltage was stable at about 0.6 V for 50 h when the life test was carried out galvanostatically at the current density of 20 mA/cm^2. The results of scanning electron microscope （SEM） and X-ray diffraction （XRD） tests showed that the composition of anode was still copper simple substance although surface morphology of anode changed constantly during the experiment.
作者 贾志方 段东红 孙彦平
机构地区 太原理工大学洁净化工研究所
出处 《电池》 CAS CSCD 北大核心 2008年第5期281-284,共4页 Battery Bimonthly
基金 国家自然科学基金(20776091)
关键词 硼氢化钠(NaBH4) 铜阳极 线性极化 燃料电池 borohydride（ NaBH4） copper anode liner polarization fuel cell
分类号 TM911.46 [电气工程—电力电子与电力传动]
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参考文献14

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二级参考文献43

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共引文献15

同被引文献54

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引证文献3

二级引证文献4

电池
2008年 第5期

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