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Title: Surface Immobilization of Molecular Electrocatalysts for Energy Conversion

Abstract

Electrocatalysts are critically important for a secure energy future, as they facilitate the conversion between electrical energy and chemical energy. Molecular catalysts offer precise control of their structure, and the ability to modify the substituents to understand structure-reactivity relationships that are more difficult to achieve with heterogeneous catalysts. Molecular electrocatalysts can be immobilized on surfaces by covalent bonds or through non-covalent interactions. Advantages of surface immobilization include the need for less catalyst, avoidance of bimolecular decomposition pathways, and easier determination of catalyst lifetime. Copper-catalyzed click reactions are often used to form covalent bonds to surfaces, and pi-pi stacking of pyrene substituents appended to the ligand of a molecular complex is a frequently used method to achieve non-covalent surface immobilization. This mini-review highlights surface confinement of molecular electrocatalysts for reduction of O2, oxidation of H2O, production of H2, and reduction of CO2.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, Richland WA 99352 USA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1363987
Report Number(s):
PNNL-SA-121541
Journal ID: ISSN 0947-6539; KC0307010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chemistry - A European Journal; Journal Volume: 23; Journal Issue: 32
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Bullock, R. Morris, Das, Atanu K., and Appel, Aaron M. Surface Immobilization of Molecular Electrocatalysts for Energy Conversion. United States: N. p., 2017. Web. doi:10.1002/chem.201605066.
Bullock, R. Morris, Das, Atanu K., & Appel, Aaron M. Surface Immobilization of Molecular Electrocatalysts for Energy Conversion. United States. doi:10.1002/chem.201605066.
Bullock, R. Morris, Das, Atanu K., and Appel, Aaron M. Wed . "Surface Immobilization of Molecular Electrocatalysts for Energy Conversion". United States. doi:10.1002/chem.201605066.
@article{osti_1363987,
title = {Surface Immobilization of Molecular Electrocatalysts for Energy Conversion},
author = {Bullock, R. Morris and Das, Atanu K. and Appel, Aaron M.},
abstractNote = {Electrocatalysts are critically important for a secure energy future, as they facilitate the conversion between electrical energy and chemical energy. Molecular catalysts offer precise control of their structure, and the ability to modify the substituents to understand structure-reactivity relationships that are more difficult to achieve with heterogeneous catalysts. Molecular electrocatalysts can be immobilized on surfaces by covalent bonds or through non-covalent interactions. Advantages of surface immobilization include the need for less catalyst, avoidance of bimolecular decomposition pathways, and easier determination of catalyst lifetime. Copper-catalyzed click reactions are often used to form covalent bonds to surfaces, and pi-pi stacking of pyrene substituents appended to the ligand of a molecular complex is a frequently used method to achieve non-covalent surface immobilization. This mini-review highlights surface confinement of molecular electrocatalysts for reduction of O2, oxidation of H2O, production of H2, and reduction of CO2.},
doi = {10.1002/chem.201605066},
journal = {Chemistry - A European Journal},
number = 32,
volume = 23,
place = {United States},
year = {Wed Mar 22 00:00:00 EDT 2017},
month = {Wed Mar 22 00:00:00 EDT 2017}
}