Platinum-Modulated Cobalt Nanocatalysts for Low-Temperature Aqueous-Phase Fischer–Tropsch Synthesis
- 4 March 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 135 (10), 4149-4158
- https://doi.org/10.1021/ja400771a
Abstract
Fischer–Tropsch synthesis (FTS) is an important catalytic process for liquid fuel generation, which converts coal/shale gas/biomass-derived syngas (a mixture of CO and H2) to oil. While FTS is thermodynamically favored at low temperature, it is desirable to develop a new catalytic system that could allow working at a relatively low reaction temperature. In this article, we present a one-step hydrogenation–reduction route for the synthesis of Pt–Co nanoparticles (NPs) which were found to be excellent catalysts for aqueous-phase FTS at 433 K. Coupling with atomic-resolution scanning transmission electron microscopy (STEM) and theoretical calculations, the outstanding activity is rationalized by the formation of Co overlayer structures on Pt NPs or Pt–Co alloy NPs. The improved energetics and kinetics from the change of the transition states imposed by the lattice mismatch between the two metals are concluded to be the key factors responsible for the dramatically improved FTS performance.This publication has 69 references indexed in Scilit:
- Development of Novel Catalysts for Fischer–Tropsch Synthesis: Tuning the Product SelectivityChemCatChem, 2010
- Aqueous‐Phase Fischer–Tropsch Synthesis with a Ruthenium Nanocluster CatalystAngewandte Chemie, 2008
- Advances in the Development of Novel Cobalt Fischer−Tropsch Catalysts for Synthesis of Long-Chain Hydrocarbons and Clean FuelsChemical Reviews, 2007
- Synthesis of Transportation Fuels from Biomass: Chemistry, Catalysts, and EngineeringChemical Reviews, 2006
- The Brønsted–Evans–Polanyi relation and the volcano curve in heterogeneous catalysisJournal of Catalysis, 2004
- Ionic liquids: applications in catalysisCatalysis Today, 2002
- Short history and present trends of Fischer–Tropsch synthesisApplied Catalysis A: General, 1999
- Design, synthesis, and use of cobalt-based Fischer-Tropsch synthesis catalystsApplied Catalysis A: General, 1997
- Synthesis and Catalytic Properties of Eggshell Cobalt Catalysts for the Fischer-Tropsch SynthesisJournal of Catalysis, 1995
- The catalytic synthesis of hydrocarbons from H2/CO mixtures over the group VIII metals I. The specific activities and product distributions of supported metalsJournal of Catalysis, 1975