Pt纳米空球粒径的可控制备及其甲醇电催化氧化

doi:10.13208/j.electrochem.140318

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (6): 571-575. doi: 10.13208/j.electrochem.140318

Pt纳米空球粒径的可控制备及其甲醇电催化氧化

林旋¹，程美琴¹，商中瑾¹，熊婷¹，张贤土¹，田伟¹，林剑云¹，钟起玲^1*，任斌²

1. 江西师范大学化学化工学院，江西南昌 330022；2. 厦门大学化学化工学院，固体表面物理化学国家重点实验室，福建厦门 361005

收稿日期:2014-03-18 修回日期:2014-04-10 出版日期:2014-12-28 发布日期:2014-04-15
通讯作者: 钟起玲 E-mail:zhqiling@163.com
基金资助:
国家自然科学基金项目(No. 20663002)、厦门大学固体表面物理化学国家重点实验室基金(No. 200511)和江西省自然科学基金项目(No. 0620025)资助

Platinum Hollow Nanospheres with Different Sizes: Controllable Synthesis and Electrocatalytic Oxidation toward Methanol

LIN Xuan¹, CHENG Mei-qin¹, SHANG Zhong-jin¹, XIONG Ting¹，ZHANG Xian-tu¹, TIAN Wei¹, LIN Jian-yun¹, ZHONG Qi-ling^1*, REN Bin²

1. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China; 2. State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China

Received:2014-03-18 Revised:2014-04-10 Published:2014-12-28 Online:2014-04-15
Contact: ZHONG Qi-ling E-mail:zhqiling@163.com

摘要/Abstract

摘要： 利用表面活性剂十二烷基磺酸钠（SDSN）的调控合成不同粒径的硒模板和铂纳米空球（Pthollow），并将其修饰于玻碳（GC）基底即可制得Pthollow/GC电极；采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、高分辨透射电子显微镜（HR-TEM）和X射线光电子能谱等观察表征了Pthollow样品的形貌与组成；以甲醇为探针分子，研究Pthollow/GC和电沉积铂电极（Ptnano/GC）对甲醇氧化的电催化活性. 结果表明，由铂原子簇团构筑的多孔铂纳米空球粒径均匀，分散性好；用4 μmol·L^-1 SDSN控制合成的直径为130 nm的Pthollow制备的Pthollow/GC电极对甲醇氧化的电催化活性最佳.

关键词: 硒模板, 铂空球, 循环伏安, 计时电流

Abstract: The selenium (Se) templates and hollow platinum (Pthollow) nanospheres with different sizes were controllably synthesized by adjusting the concentration of sodium dodecyl sulphonate (SDSN) (CSDSN, μmol·L-1) which was used as a surfactant. Accordingly, the Pthollow nanospheres modified glassy carbon (GC) electrode (Pthollow/GC) was prepared. The morphology and composition of Pthollow nanospheres were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy (EDX), high resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and X-ray diffraction (XRD) techniques. The electrocatalytic activities of Pthollow/GC and electrodeposited Pt nanoparticles modified glassy carbon electrode (Ptnano/GC) toward methanol oxidation were studied. The results showed that the uniform diameter sizes with well distributions were obtained with the synthesized porous Pthollow nanospheres constructed by Pt atom clusters were . The best electrocatalytic activity toward methanol oxidation was achieved with the Pthollow/GC having a diameter of 130 nm synthesized with CSDSN = 4 μmol·L-1

Key words: Se template, Pt hollow nanosphere, cyclic voltammetry, current time curves

中图分类号:

O646.542

林旋，程美琴，商中瑾，熊婷，张贤土，田伟，林剑云，钟起玲*，任斌. Pt纳米空球粒径的可控制备及其甲醇电催化氧化[J]. 电化学（中英文）, 2014, 20(6): 571-575.

LIN Xuan, CHENG Mei-qin, SHANG Zhong-jin, XIONG Ting，ZHANG Xian-tu, TIAN Wei, LIN Jian-yun, ZHONG Qi-ling*, REN Bin. Platinum Hollow Nanospheres with Different Sizes: Controllable Synthesis and Electrocatalytic Oxidation toward Methanol[J]. Journal of Electrochemistry, 2014, 20(6): 571-575.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.140318

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I6/571

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Pt纳米空球粒径的可控制备及其甲醇电催化氧化

Platinum Hollow Nanospheres with Different Sizes: Controllable Synthesis and Electrocatalytic Oxidation toward Methanol

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