Designing the Surfaces of Semiconductor Quantum Dots for Colloidal Photocatalysis

Research output: Contribution to journalReview article

27 Citations (Scopus)

Abstract

This Perspective reviews strategies for tuning the surface chemistry of colloidal semiconductor nanocrystals (quantum dots, QDs) to function as photoredox catalysts or sensitizers of redox catalysts for organic transformations. These strategies include (i) tuning surface charge density to encourage high-affinity interactions between the QD and substrate (or co-catalyst) in the absence of a covalent linkage, (ii) maximizing the QD's catalytic surface area through ligand exchange, (iii) using "hole shuttle" ligands to efficiently extract oxidative equivalents from the QD core, and (iv) controlling the concentration of protons on the QD surface to lower the kinetic barrier for proton-coupled electron-transfer reactions.

Original languageEnglish
Pages (from-to)1005-1013
Number of pages9
JournalACS Energy Letters
Volume2
Issue number5
DOIs
Publication statusPublished - May 12 2017

Fingerprint

Photocatalysis
Semiconductor quantum dots
Catalysts
Protons
Tuning
Ligands
Surface charge
Charge density
Surface chemistry
Nanocrystals
Semiconductor materials
Kinetics
Electrons
Substrates

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Materials Chemistry

Cite this

Designing the Surfaces of Semiconductor Quantum Dots for Colloidal Photocatalysis. / Weiss, Emily A.

In: ACS Energy Letters, Vol. 2, No. 5, 12.05.2017, p. 1005-1013.

Research output: Contribution to journalReview article

@article{8539f1115e544e708089e393707fe7cb,
title = "Designing the Surfaces of Semiconductor Quantum Dots for Colloidal Photocatalysis",
abstract = "This Perspective reviews strategies for tuning the surface chemistry of colloidal semiconductor nanocrystals (quantum dots, QDs) to function as photoredox catalysts or sensitizers of redox catalysts for organic transformations. These strategies include (i) tuning surface charge density to encourage high-affinity interactions between the QD and substrate (or co-catalyst) in the absence of a covalent linkage, (ii) maximizing the QD's catalytic surface area through ligand exchange, (iii) using {"}hole shuttle{"} ligands to efficiently extract oxidative equivalents from the QD core, and (iv) controlling the concentration of protons on the QD surface to lower the kinetic barrier for proton-coupled electron-transfer reactions.",
author = "Weiss, {Emily A}",
year = "2017",
month = "5",
day = "12",
doi = "10.1021/acsenergylett.7b00061",
language = "English",
volume = "2",
pages = "1005--1013",
journal = "ACS Energy Letters",
issn = "2380-8195",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Designing the Surfaces of Semiconductor Quantum Dots for Colloidal Photocatalysis

AU - Weiss, Emily A

PY - 2017/5/12

Y1 - 2017/5/12

N2 - This Perspective reviews strategies for tuning the surface chemistry of colloidal semiconductor nanocrystals (quantum dots, QDs) to function as photoredox catalysts or sensitizers of redox catalysts for organic transformations. These strategies include (i) tuning surface charge density to encourage high-affinity interactions between the QD and substrate (or co-catalyst) in the absence of a covalent linkage, (ii) maximizing the QD's catalytic surface area through ligand exchange, (iii) using "hole shuttle" ligands to efficiently extract oxidative equivalents from the QD core, and (iv) controlling the concentration of protons on the QD surface to lower the kinetic barrier for proton-coupled electron-transfer reactions.

AB - This Perspective reviews strategies for tuning the surface chemistry of colloidal semiconductor nanocrystals (quantum dots, QDs) to function as photoredox catalysts or sensitizers of redox catalysts for organic transformations. These strategies include (i) tuning surface charge density to encourage high-affinity interactions between the QD and substrate (or co-catalyst) in the absence of a covalent linkage, (ii) maximizing the QD's catalytic surface area through ligand exchange, (iii) using "hole shuttle" ligands to efficiently extract oxidative equivalents from the QD core, and (iv) controlling the concentration of protons on the QD surface to lower the kinetic barrier for proton-coupled electron-transfer reactions.

UR - http://www.scopus.com/inward/record.url?scp=85026313831&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026313831&partnerID=8YFLogxK

U2 - 10.1021/acsenergylett.7b00061

DO - 10.1021/acsenergylett.7b00061

M3 - Review article

VL - 2

SP - 1005

EP - 1013

JO - ACS Energy Letters

JF - ACS Energy Letters

SN - 2380-8195

IS - 5

ER -