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Chelating N-Heterocyclic Carbene Ligands Enable Tuning of Electrocatalytic CO2 Reduction to Formate and Carbon Monoxide: Surface Organometallic Chemistry

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3];  [4];  [2];  [2];  [2];  [4];  [4];  [3];  [2]
  1. Univ. of California, Berkeley, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. ETH Zurich, Zurich (Switzerland)
  4. Chinese Academy of Sciences (CAS), Shanxi (China); Synfuels China, Beijing (China)
Reported here is the chelate effect as a design principle for tuning heterogeneous catalysts for electrochemical CO2 reduction. Palladium functionalized with a chelating tris-N-heterocyclic carbene (NHC) ligand (Pd-timtmbMe) exhibits a 32-fold increase in activity for electrochemical reduction of CO2 to C1 products with high Faradaic efficiency (FEC1=86 %) compared to the parent unfunctionalized Pd foil (FE=23 %), and with sustained activity relative to a monodentate NHC-ligated Pd electrode (Pd-mimtmbMe). Here, the results highlight the contributions of the chelate effect for tailoring and maintaining reactivity at molecular-materials interfaces enabled by surface organometallic chemistry.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1480786
Alternate ID(s):
OSTI ID: 1429150
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 18 Vol. 57; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (49)

Palladium Nanoparticles in Suzuki Cross-Couplings: Tapping into the Potential of Tris-Imidazolium Salts for Nanoparticle Stabilization journal February 2012
Asymmetrische Nanokatalyse: N-heterocyclische Carbene als chirale Modifikatoren von Fe3O4/Pd-Nanopartikeln journal September 2010
Ruthenium Nanoparticles Stabilized by N-Heterocyclic Carbenes: Ligand Location and Influence on Reactivity journal October 2011
Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes journal September 2014
Modulare zweizähnige NHC-Thioether-Hybridliganden zur Stabilisierung von Palladium-Nanopartikeln in diversen Lösungsmitteln journal April 2016
Water-Soluble N-Heterocyclic Carbene-Protected Gold Nanoparticles: Size-Controlled Synthesis, Stability, and Optical Properties journal April 2017
Asymmetric Nanocatalysis: N-Heterocyclic Carbenes as Chiral Modifiers of Fe3O4/Pd nanoparticles journal September 2010
Ruthenium Nanoparticles Stabilized by N-Heterocyclic Carbenes: Ligand Location and Influence on Reactivity journal October 2011
Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes journal September 2014
Modular Bidentate Hybrid NHC-Thioether Ligands for the Stabilization of Palladium Nanoparticles in Various Solvents journal April 2016
Water-Soluble N-Heterocyclic Carbene-Protected Gold Nanoparticles: Size-Controlled Synthesis, Stability, and Optical Properties journal April 2017
Platinum N-Heterocyclic Carbene Nanoparticles as New and Effective Catalysts for the Selective Hydrogenation of Nitroaromatics journal November 2013
New Route to Stabilize Ruthenium Nanoparticles with Non-Isolable Chiral N-Heterocyclic Carbenes journal October 2015
Soluble Platinum Nanoparticles Ligated by Long-Chain N-Heterocyclic Carbenes as Catalysts journal July 2017
N -Heterocyclic Carbene Self-assembled Monolayers on Copper and Gold: Dramatic Effect of Wingtip Groups on Binding, Orientation and Assembly journal November 2017
Influence of the Number and Geometry of Binding Sites on Host–Guest Affinity: Imidazolium-Substituted Receptor Molecules for Small Inorganic Anions journal April 2006
Surface interaction of benzoic acid with a copper electrode journal August 1995
A stable tridentate carbene ligand journal February 1994
Spontaneously Bi decorated carbon supported Pt nanoparticles for formic acid electro-oxidation journal March 2013
NHC-stabilized Ru nanoparticles: Synthesis and surface studies journal April 2016
Carbene Ligands in Surface Chemistry: From Stabilization of Discrete Elemental Allotropes to Modification of Nanoscale and Bulk Substrates journal September 2015
Surface Organometallic and Coordination Chemistry toward Single-Site Heterogeneous Catalysts: Strategies, Methods, Structures, and Activities journal January 2016
Polyannulated Bis(N-heterocyclic carbene)palladium Pincer Complexes for Electrocatalytic CO 2 Reduction journal December 2015
The Influence of para Substituents in Bis(N-Heterocyclic Carbene) Palladium Pincer Complexes for Electrocatalytic CO 2 Reduction journal January 2017
Negatively Charged N-Heterocyclic Carbene-Stabilized Pd and Au Nanoparticles and Efficient Catalysis in Water journal August 2015
Rational Design of Efficient Palladium Catalysts for Electroreduction of Carbon Dioxide to Formate journal November 2016
Understanding Selectivity for the Electrochemical Reduction of Carbon Dioxide to Formic Acid and Carbon Monoxide on Metal Electrodes journal June 2017
Supramolecular Porphyrin Cages Assembled at Molecular–Materials Interfaces for Electrocatalytic CO Reduction journal September 2017
Electrocatalytic Reduction of CO 2 with Palladium Bis-N-heterocyclic Carbene Pincer Complexes journal October 2014
Tin Oxide Dependence of the CO 2 Reduction Efficiency on Tin Electrodes and Enhanced Activity for Tin/Tin Oxide Thin-Film Catalysts journal January 2012
Addressable Carbene Anchors for Gold Surfaces journal May 2013
PEGylated N -Heterocyclic Carbene Anchors Designed To Stabilize Gold Nanoparticles in Biologically Relevant Media journal June 2015
A Molecular Surface Functionalization Approach to Tuning Nanoparticle Electrocatalysts for Carbon Dioxide Reduction journal June 2016
Tunable Heterogeneous Catalysis: N-Heterocyclic Carbenes as Ligands for Supported Heterogeneous Ru/K-Al 2 O 3 Catalysts To Tune Reactivity and Selectivity journal August 2016
Silica-Supported Cu Nanoparticle Catalysts for Alkyne Semihydrogenation: Effect of Ligands on Rates and Selectivity journal December 2016
Molecular Adsorbates Switch on Heterogeneous Catalysis: Induction of Reactivity by N-Heterocyclic Carbenes journal June 2017
Ultrastable Gold Nanoparticles Modified by Bidentate N -Heterocyclic Carbene Ligands journal January 2018
Electroreduction of carbon monoxide to liquid fuel on oxide-derived nanocrystalline copper journal April 2014
Ultra stable self-assembled monolayers of N-heterocyclic carbenes on gold journal March 2014
Ballbot-type motion of N-heterocyclic carbenes on gold surfaces journal October 2016
Simple direct formation of self-assembled N-heterocyclic carbene monolayers on gold and their application in biosensing journal September 2016
A new entry to N-heterocyclic carbene chemistry: synthesis and characterisation of a triscarbene complex of thallium( i ) journal January 2003
NHC-stabilized ruthenium nanoparticles as new catalysts for the hydrogenation of aromatics journal January 2013
Long-chain NHC-stabilized RuNPs as versatile catalysts for one-pot oxidation/hydrogenation reactions journal January 2016
N -Heterocyclic carbenes on close-packed coinage metal surfaces: bis-carbene metal adatom bonding scheme of monolayer films on Au, Ag and Cu journal January 2017
N-Heterocyclic carbene coated metal nanoparticles journal January 2009
N-Heterocyclic carbene-stabilized gold nanoparticles and their assembly into 3D superlattices journal January 2009
Tailor-made N-heterocyclic carbenes for nanoparticle stabilization journal January 2014
Covalent organic frameworks comprising cobalt porphyrins for catalytic CO 2 reduction in water journal August 2015

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