Facet-resolved electrochemistry: From single particles to macroscopic crystals

Optimizing the kinetics and energy requirements of electrochemical reactions is central to the design of redox systems whose function ranges from energy conversion, to chemical catalysis and sensing. This optimization takes often the form of a trial-and-error search for the optimal electrode materia...

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Main Authors: Zhang, Song, Ciampi, Simone
Format: Journal Article
Language:English
Published: ELSEVIER 2022
Subjects:
Online Access:http://purl.org/au-research/grants/arc/FT190100148
http://hdl.handle.net/20.500.11937/93936
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author Zhang, Song
Ciampi, Simone
author_facet Zhang, Song
Ciampi, Simone
author_sort Zhang, Song
building Curtin Institutional Repository
collection Online Access
description Optimizing the kinetics and energy requirements of electrochemical reactions is central to the design of redox systems whose function ranges from energy conversion, to chemical catalysis and sensing. This optimization takes often the form of a trial-and-error search for the optimal electrode material. Recent research has revealed pronounced facet-dependent electrical conductivity, redox reactivity and electro-adsorption for a range of technologically relevant semiconductors, including silicon, Cu2O, GaAs, InN, Ag2O, and β-Ga2O3. We analyze selected recent reports, highlighting situations where testing alternative crystal cuts of the same material can be an effective electrode-optimization process. We discuss what is unambiguously known as well as what is emerging but still unclear, such as when and how electrical conductivity and electrochemical rates scale with each other (and when not), or the use of facet-dependent electro-adsorption to direct crystal growth and monolayer deposition. When there are contrasting or counterintuitive views, we explore the assumptions that underlie them.
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spelling curtin-20.500.11937-939362023-12-12T07:51:38Z Facet-resolved electrochemistry: From single particles to macroscopic crystals Zhang, Song Ciampi, Simone Science & Technology Physical Sciences Technology Chemistry, Physical Electrochemistry Materials Science, Multidisciplinary Chemistry Materials Science Heterogeneous electrochemistry Interfaces Semiconductor electro-chemistry Conductive atomic force microscopy Electrocatalysis CARRIER LIFETIMES SILICON ELECTRODES SURFACES CONDUCTIVITY NANOCRYSTALS MONOLAYERS REDUCTION MECHANISM CHARGE Optimizing the kinetics and energy requirements of electrochemical reactions is central to the design of redox systems whose function ranges from energy conversion, to chemical catalysis and sensing. This optimization takes often the form of a trial-and-error search for the optimal electrode material. Recent research has revealed pronounced facet-dependent electrical conductivity, redox reactivity and electro-adsorption for a range of technologically relevant semiconductors, including silicon, Cu2O, GaAs, InN, Ag2O, and β-Ga2O3. We analyze selected recent reports, highlighting situations where testing alternative crystal cuts of the same material can be an effective electrode-optimization process. We discuss what is unambiguously known as well as what is emerging but still unclear, such as when and how electrical conductivity and electrochemical rates scale with each other (and when not), or the use of facet-dependent electro-adsorption to direct crystal growth and monolayer deposition. When there are contrasting or counterintuitive views, we explore the assumptions that underlie them. 2022 Journal Article http://hdl.handle.net/20.500.11937/93936 10.1016/j.coelec.2022.101085 English http://purl.org/au-research/grants/arc/FT190100148 http://purl.org/au-research/grants/arc/DP190100735 http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER fulltext
spellingShingle Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Electrochemistry
Materials Science, Multidisciplinary
Chemistry
Materials Science
Heterogeneous electrochemistry
Interfaces
Semiconductor electro-chemistry
Conductive atomic force microscopy
Electrocatalysis
CARRIER LIFETIMES
SILICON
ELECTRODES
SURFACES
CONDUCTIVITY
NANOCRYSTALS
MONOLAYERS
REDUCTION
MECHANISM
CHARGE
Zhang, Song
Ciampi, Simone
Facet-resolved electrochemistry: From single particles to macroscopic crystals
title Facet-resolved electrochemistry: From single particles to macroscopic crystals
title_full Facet-resolved electrochemistry: From single particles to macroscopic crystals
title_fullStr Facet-resolved electrochemistry: From single particles to macroscopic crystals
title_full_unstemmed Facet-resolved electrochemistry: From single particles to macroscopic crystals
title_short Facet-resolved electrochemistry: From single particles to macroscopic crystals
title_sort facet-resolved electrochemistry: from single particles to macroscopic crystals
topic Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Electrochemistry
Materials Science, Multidisciplinary
Chemistry
Materials Science
Heterogeneous electrochemistry
Interfaces
Semiconductor electro-chemistry
Conductive atomic force microscopy
Electrocatalysis
CARRIER LIFETIMES
SILICON
ELECTRODES
SURFACES
CONDUCTIVITY
NANOCRYSTALS
MONOLAYERS
REDUCTION
MECHANISM
CHARGE
url http://purl.org/au-research/grants/arc/FT190100148
http://purl.org/au-research/grants/arc/FT190100148
http://hdl.handle.net/20.500.11937/93936