Compositional segregation in shaped Pt alloy nanoparticles and their structural behaviour during electrocatalysis

作者: Chunhua Cui , Lin Gan , Marc Heggen , Stefan Rudi , Peter Strasser

DOI: 10.1038/NMAT3668

关键词: ElectrocatalystChemical physicsBimetallic stripNanotechnologyAlloyOctahedronMetalNanomaterial-based catalystNanoparticleScanning transmission electron microscopyMaterials science

摘要: … commercial Pt/C and polycrystalline Pt were recorded in O 2 saturated 0.1 M HClO 4 solution at 25 C with a sweep rate of 5 mV s −1 at 1,600 rpm (bottom). ORR activity is evaluated at …

参考文章(49)
Hubert A. Gasteiger, Nenad M Marković, Just a dream - or future reality? Science. ,vol. 324, pp. 48- 49 ,(2009) , 10.1126/SCIENCE.1172083
D Kolb, Reconstruction phenomena at metal-electrolyte interfaces Progress in Surface Science. ,vol. 51, pp. 109- 173 ,(1996) , 10.1016/0079-6816(96)00002-0
Kotaro Sasaki, Hideo Naohara, YongMan Choi, Yun Cai, Wei-Fu Chen, Ping Liu, Radoslav R. Adzic, Highly stable Pt monolayer on PdAu nanoparticle electrocatalysts for the oxygen reduction reaction Nature Communications. ,vol. 3, pp. 1115- ,(2012) , 10.1038/NCOMMS2124
Weiting Yu, Marc D. Porosoff, Jingguang G. Chen, Review of Pt-Based Bimetallic Catalysis: From Model Surfaces to Supported Catalysts Chemical Reviews. ,vol. 112, pp. 5780- 5817 ,(2012) , 10.1021/CR300096B
Shengchun Yang, Frederick T. Wagner, Hong Yang, Jianbo Wu, Junliang Zhang, Zhenmeng Peng, Truncated Octahedral Pt3Ni Oxygen Reduction Reaction Electrocatalysts Journal of the American Chemical Society. ,vol. 132, pp. 4984- 4985 ,(2010) , 10.1021/JA100571H
Junliang Zhang, Miomir B. Vukmirovic, Ye Xu, Manos Mavrikakis, Radoslav R. Adzic, Controlling the Catalytic Activity of Platinum‐Monolayer Electrocatalysts for Oxygen Reduction with Different Substrates Angewandte Chemie. ,vol. 44, pp. 2132- 2135 ,(2005) , 10.1002/ANIE.200462335
Frederick T. Wagner, Balasubramanian Lakshmanan, Mark F. Mathias, Electrochemistry and the Future of the Automobile Journal of Physical Chemistry Letters. ,vol. 14, pp. 2204- 2219 ,(2010) , 10.1021/JZ100553M
Deli Wang, Huolin L Xin, Robert Hovden, Hongsen Wang, Yingchao Yu, David A Muller, Francis J DiSalvo, Héctor D Abruña, None, Structurally ordered intermetallic platinum–cobalt core–shell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts Nature Materials. ,vol. 12, pp. 81- 87 ,(2013) , 10.1038/NMAT3458