Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Nanoparticle Assembly Induced Ligand Interactions for Enhanced Electrocatalytic CO2 Conversion

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.1c09777· OSTI ID:1833365
 [1];  [1];  [2];  [1];  [1];  [1];  [3]
  1. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Kavli Energy NanoScience Institute, Berkeley, CA (United States)
The microenvironment in which the catalysts are situated is as important as the active sites in determining the overall catalytic performance. Recently, it has been found that nanoparticle (NP) surface ligands can actively participate in creating a favorable catalytic microenvironment, as part of the nanoparticle/ordered-ligand interlayer (NOLI), for selective CO2 conversion. However, much of the ligand–ligand interactions presumed essential to the formation of such a catalytic interlayer remains to be understood. In this study, by varying the initial size of NPs and utilizing spectroscopic and electrochemical techniques, we show that the assembly of NPs leads to the necessary ligand interactions for the NOLI formation. The large surface curvature of small NPs promotes strong noncovalent interactions between ligands of adjacent NPs through ligand interdigitation. This ensures their collective behavior in electrochemical conditions and gives rise to the structurally ordered ligand layer of the NOLI. Thus, the use of smaller NPs was shown to result in a greater catalytically effective NOLI area associated with desolvated cations and electrostatic stabilization of intermediates, leading to the enhancement of intrinsic CO2-to-CO turnover. Our findings highlight the potential use of tailored microenvironments for NP catalysis by controlling its surface ligand interactions.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1833365
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 47 Vol. 143; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (31)

Nanoparticle Superlattices: The Roles of Soft Ligands journal September 2017
Engineering Surface Amine Modifiers of Ultrasmall Gold Nanoparticles Supported on Reduced Graphene Oxide for Improved Electrochemical CO 2 Reduction journal July 2018
Tuning Gold Nanoparticles with Chelating Ligands for Highly Efficient Electrocatalytic CO 2 Reduction journal August 2018
Controlled Synthesis and Self-Assembly of Highly Monodisperse Ag and Ag2S Nanocrystals journal November 2010
Electrolyte Effects on the Electrochemical Reduction of CO 2 journal November 2019
Structure- and Electrolyte-Sensitivity in CO 2 Electroreduction journal October 2018
Synthesis of Phosphonic Acid Ligands for Nanocrystal Surface Functionalization and Solution Processed Memristors journal October 2018
Combined In Situ Spectroscopies Reveal the Ligand Ordering-Modulated Photoluminescence of Upconverting Nanoparticles journal September 2020
Surface Ligand Promotion of Carbon Dioxide Reduction through Stabilizing Chemisorbed Reactive Intermediates journal May 2018
The Critical Impacts of Ligands on Heterogeneous Nanocatalysis: A Review journal May 2021
Electric Field Effects in Electrochemical CO 2 Reduction journal September 2016
Effect of Nanoscale Geometry on Molecular Conformation:  Vibrational Sum-Frequency Generation of Alkanethiols on Gold Nanoparticles journal November 2006
Monodisperse Au Nanoparticles for Selective Electrocatalytic Reduction of CO 2 to CO journal October 2013
Achieving Selective and Efficient Electrocatalytic Activity for CO 2 Reduction Using Immobilized Silver Nanoparticles journal October 2015
Solution NMR Analysis of Ligand Environment in Quaternary Ammonium-Terminated Self-Assembled Monolayers on Gold Nanoparticles: The Effect of Surface Curvature and Ligand Structure journal February 2019
N-Heterocyclic Carbenes as Reversible Exciton-Delocalizing Ligands for Photoluminescent Quantum Dots journal January 2020
In Situ Vibrational Study of the Reductive Desorption of Alkanethiol Monolayers on Gold by Sum Frequency Generation Spectroscopy journal October 2014
Effects of Li + , K + , and Ba 2+ Cations on the ORR at Model and High Surface Area Pt and Au Surfaces in Alkaline Solutions journal October 2011
Evidence for Bilayer Assembly of Cationic Surfactants on the Surface of Gold Nanorods journal October 2001
Particle−Particle Interactions and Chain Dynamics of Fluorocarbon and Hydrocarbon Functionalized ZrO 2 Nanoparticles journal February 2008
Relation between Packing Density and Thermal Transitions of Alkyl Chains on Layered Silicate and Metal Surfaces journal March 2008
Energy Level Modification in Lead Sulfide Quantum Dot Thin Films through Ligand Exchange journal May 2014
The surface science of nanocrystals journal January 2016
Geometric curvature controls the chemical patchiness and self-assembly of nanoparticles journal August 2013
Selective CO2 electrocatalysis at the pseudocapacitive nanoparticle/ordered-ligand interlayer journal November 2020
Bio-inspired hydrophobicity promotes CO2 reduction on a Cu surface journal August 2019
Cooperative CO2-to-ethanol conversion via enriched intermediates at molecule–metal catalyst interfaces journal December 2019
Understanding cation effects in electrochemical CO 2 reduction journal January 2019
Molecular tunability of surface-functionalized metal nanocrystals for selective electrochemical CO 2 reduction journal January 2019
Sum-Frequency Generation Spectroscopy of Plasmonic Nanomaterials: A Review journal March 2019
Bio-inspired hydrophobicity promotes CO2 reduction on a Cu surface dataset January 2019

Similar Records

Selective CO2 electrocatalysis at the pseudocapacitive nanoparticle/ordered-ligand interlayer
Journal Article · Sun Nov 29 19:00:00 EST 2020 · Nature Energy · OSTI ID:1786330

Nanometre-resolved observation of electrochemical microenvironment formation at the nanoparticle–ligand interface
Journal Article · Sun Mar 24 20:00:00 EDT 2024 · Nature Catalysis · OSTI ID:2426886

Selective Electrocatalytic Activity of Ligand Stabilized Copper Oxide Nanoparticles
Journal Article · Fri Dec 31 23:00:00 EST 2010 · Journal of Physical Chemistry Letters · OSTI ID:1036455