Maximizing the catalytic function of hydrogen spillover in platinum-encapsulated aluminosilicates with controlled nanostructures

作者: Juhwan Im , Hyeyoung Shin , Haeyoun Jang , Hyungjun Kim , Minkee Choi

DOI: 10.1038/NCOMMS4370

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摘要: Hydrogen spillover has been studied for several decades, but its nature, catalytic functions and even its existence remain topics of vigorous debate. This is a consequence of the lack of model catalysts that can provide direct evidences of the existence of hydrogen spillover and simplify the catalytic interpretation. Here we use platinum encapsulated in a dense aluminosilicate matrix with controlled diffusional properties and surface hydroxyl concentrations to elucidate the catalytic functions of hydrogen spillover. The catalytic …

参考文章(27)
D. Maret, G.M. Pajonk, S.J. Teichner, Catalytic Hydrognation of Ethylene by Amorphous Alumina Activated by Hydrogen and/or Oxygen Spillover Studies in Surface Science and Catalysis. ,vol. 17, pp. 215- 231 ,(1983) , 10.1016/S0167-2991(08)64676-5
Michael J Nash, Anne Marie Shough, Dustin W Fickel, Douglas J Doren, Raul F Lobo, None, High-temperature dehydrogenation of Brønsted acid sites in zeolites. Journal of the American Chemical Society. ,vol. 130, pp. 2460- 2462 ,(2008) , 10.1021/JA709978R
S. Ohgoshi, I. Nakamura, Y. wakushima, Hydrogenation of isobutylene by spiltover hydrogen from Pt/KA-zeolite to NaY-zeolite Studies in Surface Science and Catalysis. ,vol. 77, pp. 289- 292 ,(1993) , 10.1016/S0167-2991(08)63193-6
R. S. Mulliken, Electronic Population Analysis on LCAO–MO Molecular Wave Functions. I The Journal of Chemical Physics. ,vol. 23, pp. 1833- 1840 ,(1955) , 10.1063/1.1740588
P. Jeffrey Hay, Willard R. Wadt, Ab initio effective core potentials for molecular calculations. Potentials for K to Au including the outermost core orbitals Journal of Chemical Physics. ,vol. 82, pp. 299- 310 ,(1985) , 10.1063/1.448975
Aihua Zhang, Ikusei Nakamura, Kaoru Fujimoto, A New Probe Reaction for Studying the Hydrogen Spillover Phenomenon Journal of Catalysis. ,vol. 168, pp. 328- 333 ,(1997) , 10.1006/JCAT.1997.1672
Jeffery C. Bricker, Advanced Catalytic Dehydrogenation Technologies for Production of Olefins Topics in Catalysis. ,vol. 55, pp. 1309- 1314 ,(2012) , 10.1007/S11244-012-9912-1
Minkee Choi, Zhijie Wu, Enrique Iglesia, Mercaptosilane-assisted synthesis of metal clusters within zeolites and catalytic consequences of encapsulation. Journal of the American Chemical Society. ,vol. 132, pp. 9129- 9137 ,(2010) , 10.1021/JA102778E