Title: Measuring and directing charge transfer in heterogenous catalysts

Journal Article · · Nature Communications

Abstract Precise control of charge transfer between catalyst nanoparticles and supports presents a unique opportunity to enhance the stability, activity, and selectivity of heterogeneous catalysts. While charge transfer is tunable using the atomic structure and chemistry of the catalyst-support interface, direct experimental evidence is missing for three-dimensional catalyst nanoparticles, primarily due to the lack of a high-resolution method that can probe and correlate both the charge distribution and atomic structure of catalyst/support interfaces in these structures. We demonstrate a robust scanning transmission electron microscopy (STEM) method that simultaneously visualizes the atomic-scale structure and sub-nanometer-scale charge distribution in heterogeneous catalysts using a model Au-catalyst/SrTiO 3 -support system. Using this method, we further reveal the atomic-scale mechanisms responsible for the highly active perimeter sites and demonstrate that the charge transfer behavior can be readily controlled using post-synthesis treatments. This methodology provides a blueprint for better understanding the role of charge transfer in catalyst stability and performance and facilitates the future development of highly active advanced catalysts.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231; AC05-00OR22725
OSTI ID:
1871242
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 13; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (69)

Interaction of Gold Clusters with Color Centers on MgO(001) Films journal April 2006
Scanning Electrochemical Microscopy of Individual Catalytic Nanoparticles journal October 2014
Carbon Dioxide Activation and Reaction Induced by Electron Transfer at an Oxide-Metal Interface journal May 2015
Ultrastable Hydroxyapatite/Titanium-Dioxide-Supported Gold Nanocatalyst with Strong Metal-Support Interaction for Carbon Monoxide Oxidation journal July 2016
Industrial Applications of Gold Catalysis journal September 2016
Reversibly Switching the Charge State and Adsorption Location of A Single Potassium Atom on Ultrathin CuO Films journal July 2020
Advanced Electron Microscopy of Metal-Support Interactions in Supported Metal Catalysts journal June 2011
Charge Control in Model Catalysis: The Decisive Role of the Oxide-Nanoparticle Interface journal November 2017
When Gold Is Not Noble: Catalysis by Nanoparticles journal April 2003
Charge Transfer in Metal Catalysts Supported on Doped TiO2: A Theoretical Approach Based on Metal–Semiconductor Contact Theory journal July 1996
Catalytic effects on the surface of semiconductors supported by metals journal January 1969
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Evidence of active species in CO oxidation catalyzed by highly dispersed supported gold journal April 2007
Reversible deactivation of a Au/Ce0.62Zr0.38O2 catalyst in CO oxidation: A systematic study of CO2-triggered carbonate inhibition journal July 2014
Tuning/exploiting Strong Metal-Support Interaction (SMSI) in Heterogeneous Catalysis journal May 2017
Catalysis by gold: New insights into the support effect journal August 2013
Interaction of nanostructured metal overlayers with oxide surfaces journal November 2007
Nanocatalysis: size- and shape-dependent chemisorption and catalytic reactivity journal June 2015
Electronic charge transfer between Au nano-particles and TiO2-terminated SrTiO3(001) substrate journal March 2010
On the origin of differential phase contrast at a locally charged and globally charge-compensated domain boundary in a polar-ordered material journal July 2015
Phase contrast STEM for thin samples: Integrated differential phase contrast journal January 2016
Pixelated detectors and improved efficiency for magnetic imaging in STEM differential phase contrast journal June 2016
Measurement of atomic electric fields and charge densities from average momentum transfers using scanning transmission electron microscopy journal July 2017
Low magnification differential phase contrast imaging of electric fields in crystals with fine electron probes journal October 2016
Correlative micro-diffraction and differential phase contrast study of mean inner potential and subtle beam-specimen interaction journal May 2017
Four-Dimensional Scanning Transmission Electron Microscopy (4D-STEM): From Scanning Nanodiffraction to Ptychography and Beyond journal May 2019
Interfaces in Heterogeneous Catalysts: Advancing Mechanistic Understanding through Atomic-Scale Measurements journal February 2017
What Changes on the Inverse Catalyst? Insights from CO Oxidation on Au-Supported Ceria Nanoparticles Using Ab Initio Molecular Dynamics journal January 2020
A New Type of Strong Metal–Support Interaction and the Production of H 2 through the Transformation of Water on Pt/CeO 2 (111) and Pt/CeO x /TiO 2 (110) Catalysts journal May 2012
Furfuraldehyde Hydrogenation on Titanium Oxide-Supported Platinum Nanoparticles Studied by Sum Frequency Generation Vibrational Spectroscopy: Acid–Base Catalysis Explains the Molecular Origin of Strong Metal–Support Interactions journal August 2012
The Role of Reducible Oxide–Metal Cluster Charge Transfer in Catalytic Processes: New Insights on the Catalytic Mechanism of CO Oxidation on Au/TiO 2 from ab Initio Molecular Dynamics journal July 2013
Strong Metal–Support Interactions between Gold Nanoparticles and Nonoxides journal December 2015
CO Oxidation on Au/TiO 2 : Condition-Dependent Active Sites and Mechanistic Pathways journal August 2016
Positioning the Water Oxidation Reaction Sites in Plasmonic Photocatalysts journal August 2017
Unraveling Charge State of Supported Au Single-Atoms during CO Oxidation journal January 2018
Alternative Methods for the Preparation of Gold Nanoparticles Supported on TiO 2 journal August 2002
Au Atoms and Dimers on the MgO(100) Surface:  A DFT Study of Nucleation at Defects journal March 2005
When Gold Is Not Noble:  Nanoscale Gold Catalysts journal December 1999
Effect of Interface Atomic Structure on the Electronic Properties of Nano-Sized Metal–Oxide Interfaces journal December 2014
Orientation Controlled Schottky Barrier Formation at Au Nanoparticle−SrTiO 3 Interfaces journal March 2010
Electronic perturbations journal July 2012
Atomic electric fields revealed by a quantum mechanical approach to electron picodiffraction journal December 2014
Counting electrons on supported nanoparticles journal December 2015
Direct observation of chemical reactions on single gold nanocrystals using surface plasmon spectroscopy journal September 2008
Catalytic processes monitored at the nanoscale with tip-enhanced Raman spectroscopy journal August 2012
Differential phase-contrast microscopy at atomic resolution journal June 2012
Activity enhancement of cobalt catalysts by tuning metal-support interactions journal October 2018
The role of metal/oxide interfaces for long-range metal particle activation during CO oxidation journal May 2018
Dynamic charge and oxidation state of Pt/CeO2 single-atom catalysts journal August 2019
Spatially resolved and quantitatively revealed charge transfer between single atoms and catalyst supports journal January 2022
Spiers Memorial Lecture : Role of perimeter interfaces in catalysis by gold nanoparticles journal January 2011
Size-dependent dynamic structures of supported gold nanoparticles in CO oxidation reaction condition journal July 2018
Importance of the Electric Properties of Supports in the Carrier Effect journal January 1968
Theory and practice of electron diffraction from single atoms and extended objects using an EMPAD journal December 2017
Projector augmented-wave method journal December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Generalized Gradient Approximation Made Simple journal October 1996
Effect of Strain on the Reactivity of Metal Surfaces journal September 1998
Bimodal Growth of Au on SrTiO 3 ( 001 ) journal March 2006
Controlling the Interface Dynamics at Au Nanoparticle–Oxide Interfaces journal January 2012
Classical strong metal–support interactions between gold nanoparticles and titanium dioxide journal October 2017
Direct visualization of anionic electrons in an electride reveals inhomogeneities journal April 2021
The Impact of Nanoscience on Heterogeneous Catalysis journal March 2003
Charging Effects on Bonding and Catalyzed Oxidation of CO on Au8 Clusters on MgO journal January 2005
Spectroscopic Observation of Dual Catalytic Sites During Oxidation of CO on a Au/TiO2 Catalyst journal August 2011
Control of Metal Nanocrystal Size Reveals Metal-Support Interface Role for Ceria Catalysts journal July 2013
Strong Interactions in Supported-Metal Catalysts journal March 1981
Sub-Ångstrom electric field measurements on a universal detector in a scanning transmission electron microscope journal August 2018
Direct Imaging of Charge Redistribution due to Bonding at Atomic Resolution via Electron Ptychography preprint January 2019