DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Engineering of Ruthenium-Iron Oxide Colloidal Heterostructures: Improved Yields in CO2 Hydrogenation to Hydrocarbons

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [1];  [2];  [3]; ORCiD logo [3];  [4];  [4];  [4]; ORCiD logo [3]; ORCiD logo [1]
  1. Stanford Univ., Stanford, CA (United States). Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis
  2. Stanford Univ., Stanford, CA (United States). Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource
  4. Thermo Fisher Scientific, Hillsboro, OR (United States)

Catalytic CO2 reduction to fuels and chemicals is a major pursuit in reducing greenhouse gas emissions. Here, one approach utilizes the reverse water–gas shift reaction, followed by Fischer–Tropsch synthesis, and iron is a well–known candidate for this process. Some attempts have been made to modify and improve its reactivity, but resulted in limited success. Now, using ruthenium–iron oxide colloidal heterodimers, close contact between the two phases promotes the reduction of iron oxide via a proximal hydrogen spillover effect, leading to the formation of ruthenium–iron core–shell structures active for the reaction at significantly lower temperatures than in bare iron catalysts. Furthermore, by engineering the iron oxide shell thickness, a fourfold increase in hydrocarbon yield is achieved compared to the heterodimers. This work shows how rational design of colloidal heterostructures can result in materials with significantly improved catalytic performance in CO2 conversion processes.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1575223
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 48 Vol. 58; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Au–Fe3O4 Dumbbell Nanoparticles as Dual-Functional Probes journal January 2008
Au–Fe3O4 Dumbbell Nanoparticles as Dual-Functional Probes journal January 2008
Activation of Precipitated Iron Fischer-Tropsch Synthesis Catalysts journal October 1995
Promoted Iron-Based Catalysts for the Fischer–Tropsch Synthesis: Design, Synthesis, Site Densities, and Catalytic Properties journal March 2002
Investigations of Fe-Ru bimetallic catalysts by in situ M�ssbauer and EXAFS studies journal January 1992
Influence of Chemical Composition on the Catalytic Activity of Small Bimetallic FeRu Nanoparticles for Fischer–Tropsch Syntheses journal November 2014
Fischer-Tropsch synthesis over freshly reduced iron-ruthenium alloys journal December 1979
Carbon deposition and activity changes over FeRu alloys during Fischer-Tropsch synthesis journal October 1980
Characterezation of FeRu/TiO2 and Fe/TiO2 catalysts after reduction and fischer-tropsch synthesis by Mo˝ssbauer spectroscopy journal January 1986
Comparative study of Fischer–Tropsch synthesis with H2/CO and H2/CO2 syngas using Fe- and Co-based catalysts journal October 1999
Strong Metal-Support Interactions book January 1993
Fe-Ru small particle bimetallic catalysts supported on carbon nanotubes for use in Fischer–Tröpsch synthesis journal September 2007
CO2 hydrogenation to lower olefins on a high surface area K-promoted bulk Fe-catalyst journal January 2017
Light olefin synthesis from CO2 hydrogenation over K-promoted Fe–Co bimetallic catalysts journal August 2015
Promotion of hydrocarbon selectivity in CO2 hydrogenation by Ru component journal March 2004
Colloidal heterostructured nanocrystals: Synthesis and growth mechanisms journal January 2010
Dynamical Observation and Detailed Description of Catalysts under Strong Metal–Support Interaction journal June 2016
Strong metal-support interactions journal November 1987
Strong Metal-Support Interactions book February 1986
Oleylamine as Both Reducing Agent and Stabilizer in a Facile Synthesis of Magnetite Nanoparticles journal May 2009
Strong metal-support interactions. Group 8 noble metals supported on titanium dioxide journal January 1978
Efficient Removal of Organic Ligands from Supported Nanocrystals by Fast Thermal Annealing Enables Catalytic Studies on Well-Defined Active Phases journal May 2015
Low-Temperature Restructuring of CeO 2 -Supported Ru Nanoparticles Determines Selectivity in CO 2 Catalytic Reduction journal September 2018
Dumbbell-like Bifunctional Au−Fe 3 O 4 Nanoparticles journal February 2005
Dumbbell-like Pt−Fe 3 O 4 Nanoparticles and Their Enhanced Catalysis for Oxygen Reduction Reaction journal April 2009
Catalyst support effects on hydrogen spillover journal January 2017
Catalytic reduction of CO 2 by H 2 for synthesis of CO, methanol and hydrocarbons: challenges and opportunities journal January 2016
Ru–Fe alloy mediated α-Fe 2 O 3 particles on mesoporous carbon nanofibers as electrode materials with superior capacitive performance journal January 2017
Hydrogenation of CO 2 into hydrocarbons: enhanced catalytic activity over Fe-based Fischer–Tropsch catalysts journal January 2018
An in situ Mössbauer investigation of the influence of metal–support and metal–metal interactions on the activity and selectivity of iron–ruthenium catalysts
  • Berry, Frank J.; Liwu, Lin; Chengyu, Wang
  • Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, Vol. 81, Issue 10 https://doi.org/10.1039/f19858102293
journal January 1985
Synthesis of stable and low-CO 2 selective ε-iron carbide Fischer-Tropsch catalysts journal October 2018
Strong Interactions in Supported-Metal Catalysts journal March 1981