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Title: Nanometre-resolved observation of electrochemical microenvironment formation at the nanoparticle–ligand interface

Journal Article · · Nature Catalysis
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [1]; ORCiD logo [1];  [4]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [3]; ORCiD logo [3];  [4]; ORCiD logo [1]; ORCiD logo [6]
  1. University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of California, Berkeley, CA (United States)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  4. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  5. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
  6. University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Kavli Energy NanoScience Institute, Berkeley, CA (United States)

The dynamic response of surface ligands on nanoparticles (NPs) to external stimuli critically determines the functionality of NP–ligand systems. For example, in electrocatalysis the collective dissociation of ligands on NP surfaces can lead to the creation of an NP/ordered-ligand interlayer, a microenvironment that is highly active and selective for CO2-to-CO conversion. However, the lack of in situ characterization techniques with high spatial resolution hampers a comprehensive molecular-level understanding of the mechanism of interlayer formation. Here, in this work, we utilize in situ infrared nanospectroscopy and surface-enhanced Raman spectroscopy, unveiling an electrochemical bias-induced consecutive bond cleavage mechanism of surface ligands leading to formation of the NP/ordered-ligand interlayer. This real-time molecular insight could influence the design of confined localized fields in multiple catalytic systems. Moreover, the demonstrated capability of capturing nanometre-resolved, dynamic molecular-scale events holds promise for the advancement of using controlled local molecular behaviour to achieve desired functionalities across multiple research domains in nanoscience.

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 (CSGB); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2426886
Journal Information:
Nature Catalysis, Journal Name: Nature Catalysis Journal Issue: 4 Vol. 7; ISSN 2520-1158
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Infrared Spectra of Alkylphosphonic Acid Bound to Aluminium Surfaces journal August 2007
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Structural and electronic properties of silver surfaces: ab initio pseudopotential density functional study journal September 2001
Radiation damage to organic and inorganic specimens in the TEM journal April 2019
(In)stability of ligands at the surface of inorganic nanoparticles: A forgotten question in nanomedicine? journal August 2022
An ATR-FTIR study of different phosphonic acids in aqueous solution journal July 2008
Synchrotron infrared nano-spectroscopy and -imaging journal August 2020
Binding modes of phosphonic acid derivatives adsorbed on TiO2 surfaces: Assignments of experimental IR and NMR spectra based on DFT/PBC calculations journal January 2017
Reimagining pH Measurement: Utilizing Raman Spectroscopy for Enhanced Accuracy in Phosphoric Acid Systems journal March 2020
Surface-Ligand-Controlled Enhancement of Carrier Density in Plasmonic Tungsten Oxide Nanocrystals: Spectroscopic Observation of Trap-State Passivation via Multidentate Metal Phosphonate Bonding journal March 2022
Nanochemistry and Nanomedicine for Nanoparticle-based Diagnostics and Therapy journal January 2016
The Role of Ligands in the Chemical Synthesis and Applications of Inorganic Nanoparticles journal March 2019
Surface and Interface Control in Nanoparticle Catalysis journal October 2019
Quantitative Analysis of Electron Beam Damage in Organic Thin Films journal May 2017
Solution Deposition of Phenylphosphinic Acid Leads to Highly Ordered, Covalently Bound Monolayers on TiO2 (110) Without Annealing journal June 2017
Bicarbonate Rebalances the *COOH/*OCO Dual Pathways in CO2 Electrocatalytic Reduction: In Situ Surface-Enhanced Raman Spectroscopic Evidence journal August 2022
Ultrathin Free-Standing Oxide Membranes for Electron and Photon Spectroscopy Studies of Solid–Gas and Solid–Liquid Interfaces journal August 2020
Infrared Nanospectroscopy at the Graphene–Electrolyte Interface journal July 2019
Irradiation Effects on Polymer-Grafted Gold Nanoparticles for Cancer Therapy journal December 2018
A Statistical Approach to Raman Analysis of Graphene-Related Materials: Implications for Quality Control journal November 2020
Colloidal Nanocrystals as Electrocatalysts with Tunable Activity and Selectivity journal January 2021
The Critical Impacts of Ligands on Heterogeneous Nanocatalysis: A Review journal May 2021
Conformation, and Charge Tunneling through Molecules in SAMs journal February 2021
Nanoparticle Assembly Induced Ligand Interactions for Enhanced Electrocatalytic CO 2 Conversion journal November 2021
The Interactive Dynamics of Nanocatalyst Structure and Microenvironment during Electrochemical CO2 Conversion journal February 2022
The Optical Properties of Metal Nanoparticles:  The Influence of Size, Shape, and Dielectric Environment journal January 2003
IR Spectra of Phosphate Ions in Aqueous Solution:  Predictions of a DFT/MM Approach Compared with Observations journal July 2004
High-spatial-resolution mapping of catalytic reactions on single particles journal January 2017
Structural analysis and mapping of individual protein complexes by infrared nanospectroscopy journal December 2013
Stimuli-responsive nanocarriers for drug delivery journal October 2013
In situ infrared nanospectroscopy of the local processes at the Li/polymer electrolyte interface journal March 2022
A unifying mechanism for cation effect modulating C1 and C2 productions from CO2 electroreduction journal September 2022
Selective CO2 electrocatalysis at the pseudocapacitive nanoparticle/ordered-ligand interlayer journal November 2020
Operando studies reveal active Cu nanograins for CO2 electroreduction journal February 2023
Absence of CO2 electroreduction on copper, gold and silver electrodes without metal cations in solution journal July 2021
The role and fate of capping ligands in colloidally prepared metal nanoparticle catalysts journal January 2018
Characterization of surface ligands on functionalized magnetic nanoparticles using laser desorption/ionization mass spectrometry (LDI-MS) journal January 2013
Ultrafast CARS with Improved Spectral Resolution journal January 2013
Electronic transport of n-type CdSe quantum dot films: Effect of film treatment journal May 2006
Ultrabroadband infrared nanospectroscopic imaging journal May 2014
In vitro investigation of protein assembly by combined microscopy and infrared spectroscopy at the nanometer scale journal August 2022
Polyethylene glycol-coated porous magnetic nanoparticles for targeted delivery of chemotherapeutics under magnetic hyperthermia condition journal November 2018
Ab initiomolecular dynamics for liquid metals journal January 1993
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Generalized Gradient Approximation Made Simple journal October 1996
Infrared vibrational nanocrystallography and nanoimaging journal October 2016
Colloidal Nanocrystal Shape and Size Control: The Case of Cobalt journal March 2001
Shape-Controlled Synthesis of Gold and Silver Nanoparticles journal December 2002
The coordination chemistry of nanocrystal surfaces journal February 2015
Chemically Roughened Solid Silver: A Simple, Robust and Broadband SERS Substrate journal October 2016