Electrocatalytic oxidation of formic acid on platinum nanoparticle electrode deposited on the nichrome substrate
Electrocatalytic oxidation of formic acid on platinum nanoparticle electrode deposited on the nichrome substrate
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DOI：
10.1016/j.elecom.2006.04.014
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发表时间：
2006-07
影响因子：
5.4
通讯作者：
Zhenhui Wang;Kunyan Qiu
中科院分区：
文献类型：
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作者：
Zhenhui Wang;Kunyan Qiu
研究了一种用于甲酸电氧化的新型铂纳米粒子电极。在5mM K2PtCl6+0.5M H2SO4溶液中，通过循环伏安法在镍铬合金基底上直接生长Pt纳米颗粒。扫描电子显微镜用于表征Pt纳米颗粒表面。研究了修饰铂电极的电化学性能及其对甲酸的电催化氧化行为。结果表明，Pt纳米粒子的引入改善了基底材料的电化学性能，对甲酸的电氧化具有较高的催化活性。在相同条件下，纳米铂电极对甲酸的电催化氧化活性比纯铂电极提高了50倍。此外，催化剂上的金属铂的量显著减少，制备的电极的成本大大降低。
A novel Pt nanoparticle electrode for formic acid electro-oxidation was studied. The Pt nanoparticles were grown directly on nichrome substrate by cyclic voltammetry in 5mM K2PtCl6+0.5M H2SO4solutions. Scanning electron microscope was used to characterize the Pt nanoparticle surface. The electrochemical properties of the modified Pt electrode and its electrocatalytic behavior for formic acid electro-oxidation were studied. Results showed that the Pt nanoparticles improved the electrochemical properties of the substrate material and exhibited high catalytic activity towards formic acid electro-oxidation. Under the same condition, the catalytic activity of Pt nanoparticle electrode for formic acid electro-oxidation was 50 times higher than that obtained from pure platinum. Moreover, the amount of metal platinum on the catalyst was remarkably reduced and the cost of prepared electrode greatly decreased.