Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes
作者： Yunqi Li , Bishnu Prasad Bastakoti , Victor Malgras , Cuiling Li , Jing Tang
关键词:
摘要: A facile method for the fabrication of well-dispersed mesoporous Pt nanospheres involves use a polymeric micelle assembly. core-shell-corona type triblock copolymer [poly(styrene-b-2-vinylpyridine-b-ethylene oxide), PS-b-P2VP-b-PEO] is employed as pore-directing agent. Negatively charged PtCl4 (2-) ions preferably interact with protonated P2VP(+) blocks while free PEO chains prevent aggregation nanospheres. The size mesopores can be finely tuned by varying length PS chain. Furthermore, it demonstrated that metallic thus obtained are promising candidates applications in electrochemistry.
uq.edu.au
core.ac.uk参考文章(47)
Yunqi Li, Bishnu Prasad Bastakoti, Masataka Imura, Soo Min Hwang, Ziqi Sun, Jung Ho Kim, Shi Xue Dou, Yusuke Yamauchi, Synthesis of mesoporous TiO2/SiO2 hybrid films as an efficient photocatalyst by polymeric micelle assembly Chemistry: A European Journal. ,vol. 20, pp. 6027- 6032 ,(2014) , 10.1002/CHEM.201304689
Yonghui Deng, Jia Liu, Chong Liu, Dong Gu, Zhenkun Sun, Jing Wei, Junyong Zhang, Lijuan Zhang, Bo Tu, Dongyuan Zhao, Ultra-Large-Pore Mesoporous Carbons Templated from Poly(ethylene oxide)-b-Polystyrene Diblock Copolymer by Adding Polystyrene Homopolymer as a Pore Expander Chemistry of Materials. ,vol. 20, pp. 7281- 7286 ,(2008) , 10.1021/CM802413Q
Jingyi Chen, Thurston Herricks, Matthias Geissler, Younan Xia, Single-Crystal Nanowires of Platinum Can Be Synthesized by Controlling the Reaction Rate of a Polyol Process Journal of the American Chemical Society. ,vol. 126, pp. 10854- 10855 ,(2004) , 10.1021/JA0468224
Liang Wang, Yusuke Yamauchi, Facile Synthesis of Three-Dimensional Dendritic Platinum Nanoelectrocatalyst Chemistry of Materials. ,vol. 21, pp. 3562- 3569 ,(2009) , 10.1021/CM901161G
Jing Tang, Jian Liu, Cuiling Li, Yunqi Li, Moses O. Tade, Sheng Dai, Yusuke Yamauchi, Synthesis of Nitrogen‐Doped Mesoporous Carbon Spheres with Extra‐Large Pores through Assembly of Diblock Copolymer Micelles Angewandte Chemie. ,vol. 54, pp. 588- 593 ,(2014) , 10.1002/ANIE.201407629
Dong Young Chung, Young-Hoon Chung, Namgee Jung, Kwang-Hyun Choi, Yung-Eun Sung, Correlation between platinum nanoparticle surface rearrangement induced by heat treatment and activity for an oxygen reduction reaction Physical Chemistry Chemical Physics. ,vol. 15, pp. 13658- 13663 ,(2013) , 10.1039/C3CP51520F
Jintao Zhang, Chang Ming Li, Nanoporous metals: fabrication strategies and advanced electrochemical applications in catalysis, sensing and energy systems Chemical Society Reviews. ,vol. 41, pp. 7016- 7031 ,(2012) , 10.1039/C2CS35210A
S. B. Vendelbo, C. F. Elkjær, H. Falsig, I. Puspitasari, P. Dona, L. Mele, B. Morana, B. J. Nelissen, R. van Rijn, J. F. Creemer, P. J. Kooyman, S. Helveg, Visualization of oscillatory behaviour of Pt nanoparticles catalysing CO oxidation Nature Materials. ,vol. 13, pp. 884- 890 ,(2014) , 10.1038/NMAT4033
Anil Khanal, Yuko Inoue, Mitsunori Yada, Kenichi Nakashima, Synthesis of Silica Hollow Nanoparticles Templated by Polymeric Micelle with Core−Shell−Corona Structure Journal of the American Chemical Society. ,vol. 129, pp. 1534- 1535 ,(2007) , 10.1021/JA0684904
Yaojuan Hu, Qian Shao, Ping Wu, Hui Zhang, Chenxin Cai, Synthesis of hollow mesoporous Pt–Ni nanosphere for highly active electrocatalysis toward the methanol oxidation reaction Electrochemistry Communications. ,vol. 18, pp. 96- 99 ,(2012) , 10.1016/J.ELECOM.2012.02.030