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Size- and Density-Controllable Fabrication of the Platinum Nanoparticle/ITO Electrode by Pulse Potential Electrodeposition for Ammonia Oxidation
Li, Siyuan1; Chen, Haiyan2; Liu, Jie1; Deng, Yida3; Han, Xiaopeng3; Hu, Wenbin1,3; Zhong, Cheng1,3
2017
发表期刊ACS Applied Materials and Interfaces
ISSN19448244
卷号9期号:33页码:27765-27772
摘要Pulse potential electrodeposition was successfully utilized to electrochemically fabricate platinum (Pt) nanoparticles on indium tin oxide (ITO) conductive glass substrates for catalysis toward ammonia electro-oxidation. The effect of deposition parameters (lower potential El, lower potential duration tl, and upper potential duration tu) on the size and number density of Pt nanoparticles was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrocatalytic activity of the Pt nanoparticle/ITO electrode for ammonia oxidation was characterized by the cyclic voltammetry (CV) method. The results showed that lower Eland longer tlaccelerate the formation of Pt nuclei while longer tufavors the growth of grain size to some extent, as Elmainly tunes electrochemical overpotential while tland tuaffect the activation and mass transfer process. By the tuning of the deposition parameters, Pt nanoparticle/ITO electrodes with a polycrystalline nature and 5 nm-scale primary particles, could be easily modified in Pt particle size and number density. Furthermore, the Pt nanoparticle/ITO electrode shows high mass specific catalytic activity (MA) toward ammonia oxidation (1.65 mC μg-1), much higher than that of the commercial Pt/C electrode (0.32 mC μg-1). Additionally, the high catalytic performance results not only from the nanosize effect of Pt nanoparticles, but also from the special morphology formed during the electrodeposition process. © 2017 American Chemical Society.
DOI10.1021/acsami.7b08604
EI入藏号20173504086986
EI主题词Platinum
EI分类号539.3.1 Electroplating - 547.1 Precious Metals - 641.3 Mass Transfer - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 812.3 Glass - 933.1.2 Crystal Growth
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25804
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin; 300072, China;
2.Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai Institute of Cardiovascular Diseases, Shanghai; 200032, China;
3.Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin; 300072, China
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Li, Siyuan,Chen, Haiyan,Liu, Jie,et al. Size- and Density-Controllable Fabrication of the Platinum Nanoparticle/ITO Electrode by Pulse Potential Electrodeposition for Ammonia Oxidation[J]. ACS Applied Materials and Interfaces,2017,9(33):27765-27772.
APA Li, Siyuan.,Chen, Haiyan.,Liu, Jie.,Deng, Yida.,Han, Xiaopeng.,...&Zhong, Cheng.(2017).Size- and Density-Controllable Fabrication of the Platinum Nanoparticle/ITO Electrode by Pulse Potential Electrodeposition for Ammonia Oxidation.ACS Applied Materials and Interfaces,9(33),27765-27772.
MLA Li, Siyuan,et al."Size- and Density-Controllable Fabrication of the Platinum Nanoparticle/ITO Electrode by Pulse Potential Electrodeposition for Ammonia Oxidation".ACS Applied Materials and Interfaces 9.33(2017):27765-27772.
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