| 辐射状钯纳米花的可控合成及其电催化性能的研究 |
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| 引用本文： | 刘苏莉,唐媛媛,韩敏,包建春,戴志晖.辐射状钯纳米花的可控合成及其电催化性能的研究[J].中国科学:化学,2014(3):327-333. |
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| 作者姓名： | 刘苏莉 唐媛媛 韩敏 包建春 戴志晖 |
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| 作者单位： | 南京师范大学化学与材料科学学院,南京210023 |
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| 基金项目： | 致谢本工作得到国家自然科学基金（21175069,21171096）和江苏高校优势学科建设工程项目资助,特此一并致谢. |
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| 摘 要： | 水体系中,以十六烷基三甲基溴化铵(CTAB)和L-精氨酸为表面活性剂,抗坏血酸还原PdCl42-,制得了直径范围在50~80 nm之间的辐射状钯纳米花.实验表明,CTAB和L-精氨酸对辐射状钯纳米花的形成起着协同作用.此外,还研究了辐射状钯纳米花对甲酸氧化的电催化活性.在0.5 mol/L H2SO4+0.5 mol/L HCOOH溶液中的循环伏安结果表明,辐射状钯纳米花修饰电极在酸性溶液中电催化氧化甲酸的峰电流密度约为101 mA/mg,明显优于实心钯纳米粒子修饰的电极(峰电流密度为50 mA/mg),且表现出较高的稳定性.
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| 关 键 词： | 辐射状钯纳米花 协同作用 甲酸催化氧化 |
Facile synthesis of radial palladium nanoflowers and their catalytic performance |
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| LIU SuLi,TANG YuanYuan,HAN Min,BAO JianChun,DAI ZhiHui.Facile synthesis of radial palladium nanoflowers and their catalytic performance[J].Scientia Sinica Chimica,2014(3):327-333. |
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| Authors: | LIU SuLi TANG YuanYuan HAN Min BAO JianChun DAI ZhiHui |
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| Institution: | School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China Corresponding authors (email： daizhihuii@njnu.edu.cn; baojianchun@njnu.edu,cn) |
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| Abstract: | Radial palladium nanoflowers with the diameter in the range of 50-80 nm were obtained by the reaction of PdC14^2- with ascorbic acid, using cetyltrimethylammoniumbromide （CTAB） and L-arginine as the surfactants in aqueous solution. It was found that CTAB and L-arginine had synergistic effects on the formation of the radial palladium nanoflowers. The electrocatalytic activity of the radial palladium nanoflowers electrode for the formic acid oxidation in 0.5 mol/L H2SO4 ＋ 0.5 mol/L HCOOH was also investigated. The results displayed that electrocatalytic activity and stability of the radial palladium nanoflowers catalyst were better than that of the solid Pd catalyst. |
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| Keywords: | radial palladium nanoflowers synergistic effects formic acid electrocatalytic oxidation |
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