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Strain enhances the activity of molecular electrocatalysts via carbon nanotube supports

Journal Article · · Nature Catalysis
Abstract

Support-induced strain engineering is useful for modulating the properties of two-dimensional materials. However, controlling strain of planar molecules is technically challenging due to their sub-2 nm lateral size. Additionally, the effect of strain on molecular properties remains poorly understood. Here we show that carbon nanotubes (CNTs) are ideal substrates for inducing optimum properties through molecular curvature. In a tandem-flow electrolyser with monodispersed cobalt phthalocyanine (CoPc) on single-walled CNTs (CoPc/SWCNTs) for CO2reduction, we achieve a methanol partial current density of >90 mA cm−2with >60% selectivity, surpassing wide multiwalled CNTs at 16.6%. We report vibronic and X-ray spectroscopies to unravel the distinct local geometries and electronic structures induced by the strong molecule–support interactions. Grand canonical density functional theory confirms that curved CoPc/SWCNTs improve *CO binding to enable subsequent reduction, whereas wide multiwalled CNTs favour CO desorption. Our results show the important role of SWCNTs beyond catalyst dispersion and electron conduction.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0021266
OSTI ID:
2421863
Journal Information:
Nature Catalysis, Journal Name: Nature Catalysis Journal Issue: 9 Vol. 6; ISSN 2520-1158
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English

References (59)

Curvature-induced electronic tuning of molecular catalysts for CO2 reduction journal January 2021
Accurate non-bonded potentials based on periodic quantum mechanics calculations for use in molecular simulations of materials and systems journal October 2019
Substrate strain tunes operando geometric distortion and oxygen reduction activity of CuN2C2 single-atom sites journal November 2021
Elucidating the Reactivity and Mechanism of CO 2 Electroreduction at Highly Dispersed Cobalt Phthalocyanine journal May 2018
Heterogeneous Molecular Catalysts of Metal Phthalocyanines for Electrochemical CO2 Reduction Reactions journal August 2021
Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction journal August 2020
Electrochemical CO 2 Reduction: A Classification Problem journal October 2017
Selective and High Current CO2 Electro-Reduction to Multicarbon Products in Near-Neutral KCl Electrolytes journal February 2021
Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium journal April 2022
Tuning the Optical, Magnetic, and Electrical Properties of ReSe 2 by Nanoscale Strain Engineering journal February 2015
Progress and Perspectives of Electrochemical CO 2 Reduction on Copper in Aqueous Electrolyte journal April 2019
Highlights and challenges in the selective reduction of carbon dioxide to methanol journal June 2021
Activating and optimizing MoS2 basal planes for hydrogen evolution through the formation of strained sulphur vacancies journal November 2015
Electrocatalytic Conversion of Carbon Dioxide to Methane and Methanol on Transition Metal Surfaces journal August 2014
Molecular Electrochemical Reduction of CO2 beyond Two Electrons journal May 2021
Extremely Non-Planar Phthalocyanines with Saddle or Helical Conformation:  Synthesis and Structural Characterizations journal October 2001
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
IFEFFIT  : interactive XAFS analysis and FEFF fitting journal March 2001
Metal-Coordinated Phthalocyanines as Platform Molecules for Understanding Isolated Metal Sites in the Electrochemical Reduction of CO2 journal August 2022
Deformed Phthalocyanines: Synthesis and Characterization of Zinc Phthalocyanines Bearing Phenyl Substituents at the 1-, 4-, 8-, 11-, 15-, 18-, 22-, and/or 25-Positions journal September 2005
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
JDFTx: Software for joint density-functional theory journal January 2017
Polarizable charge equilibration model for predicting accurate electrostatic interactions in molecules and solids journal March 2017
Single-Molecule Magnet Behavior with a Single Metal Center Enhanced through Peripheral Ligand Modifications journal October 2011
In Situ Formation of Metal Oxide Nanocrystals Embedded in Laser-Induced Graphene journal August 2015
Design of Single-Atom Co–N 5 Catalytic Site: A Robust Electrocatalyst for CO 2 Reduction with Nearly 100% CO Selectivity and Remarkable Stability journal February 2018
One-Dimensional Molecular Crystal of Phthalocyanine Confined into Single-Walled Carbon Nanotubes journal February 2015
Molecularly Dispersed Cobalt Phthalocyanine Mediates Selective and Durable CO2 Reduction in a Membrane Flow Cell journal October 2021
Reaction Mechanism and Strategy for Optimizing the Hydrogen Evolution Reaction on Single-Layer 1T′ WSe2 and WTe2 Based on Grand Canonical Potential Kinetics journal November 2021
Strain-Induced Pseudo-Magnetic Fields Greater Than 300 Tesla in Graphene Nanobubbles journal July 2010
Physics of ultra-thin phthalocyanine films on semiconductors journal January 2004
The quantum mechanics-based polarizable force field for water simulations journal November 2018
Theoretical Study on the Electro-Reduction of Carbon Dioxide to Methanol Catalyzed by Cobalt Phthalocyanine journal October 2022
Supported Cobalt Polyphthalocyanine for High-Performance Electrocatalytic CO2 Reduction journal October 2017
Zwitterionic ultrathin covalent organic polymers for high-performance electrocatalytic carbon dioxide reduction journal May 2021
Bandgap tuning of two-dimensional materials by sphere diameter engineering journal February 2020
Atomically Thin, Ionic–Covalent Organic Nanosheets for Stable, High‐Performance Carbon Dioxide Electroreduction journal September 2022
How to Manipulate Through-Space Conjugation and Clusteroluminescence of Simple AIEgens with Isolated Phenyl Rings journal June 2021
Aqueous Electrochemical Reduction of Carbon Dioxide and Carbon Monoxide into Methanol with Cobalt Phthalocyanine journal November 2019
Carbon Dioxide Reduction at a Metal Phthalocyanine Catalyzed Carbon Electrode journal January 1984
Building a stable cationic molecule/electrode interface for highly efficient and durable CO2 reduction at an industrially relevant current journal January 2021
Jaguar: A high-performance quantum chemistry software program with strengths in life and materials sciences journal July 2013
Magnetic nanoribbons with embedded cobalt grown inside single-walled carbon nanotubes journal January 2022
UFF, a full periodic table force field for molecular mechanics and molecular dynamics simulations journal December 1992
Theoretical investigation of the molecular, electronic structures and vibrational spectra of a series of first transition metal phthalocyanines journal August 2007
Electrochemical CO 2 Reduction: Classifying Cu Facets journal July 2019
Generalized Gradient Approximation Made Simple journal October 1996
Implicit solvation model for density-functional study of nanocrystal surfaces and reaction pathways journal February 2014
Highly selective and active CO2 reduction electrocatalysts based on cobalt phthalocyanine/carbon nanotube hybrid structures journal March 2017
The charge-asymmetric nonlocally determined local-electric (CANDLE) solvation model journal February 2015
Strong Interactions in Dye-Sensitized Interfaces journal March 2008
Polarization conversion when focusing cylindrically polarized vortex beams journal December 2016
Domino electroreduction of CO2 to methanol on a molecular catalyst journal November 2019
Gabedit-A graphical user interface for computational chemistry softwares journal November 2010
An In Situ XAS Study of the Cobalt Rhenium Catalyst for Ammonia Synthesis journal February 2018
Grand canonical electronic density-functional theory: Algorithms and applications to electrochemistry journal March 2017
LAMMPS - a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales journal February 2022
Advances and challenges in understanding the electrocatalytic conversion of carbon dioxide to fuels journal September 2019
Molecular enhancement of heterogeneous CO2 reduction journal February 2020

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