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Title: Forwarding Molecular Design of Heterogeneous Catalysts

Abstract

Catalysis research has long been divided between homogeneous and heterogeneous catalysis. In homogeneous catalysis, reactivity arises from molecular catalysts in a homogeneous solution, while in heterogeneous catalysis reactivity comes from sites on a surface. The main advantage of homogeneous catalysis is the ability to design reaction sites within molecularly defined catalysts in order to achieve high catalytic activity, measured in the number of product molecules evolved per site per second (turnover frequency, TOF). However, homogeneous catalysis suffers from degradation of the molecular catalysts during the reaction, leading to a low number of total product molecules evolved (turnover number, TON). In comparison, heterogeneous catalysis has incredibly high TONs - so much so that discrete TONs are often impractical to report. Here a new, promising area of research is intended to combine the benefits of both homogeneous and heterogeneous catalysis by tethering the molecular catalyst onto a solid surface to achieve tunability, high TOFs, and high TONs.

Authors:
ORCiD logo [1]
  1. Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1465884
Alternate Identifier(s):
OSTI ID: 1474838
Report Number(s):
NREL/JA-5900-72485
Journal ID: ISSN 2374-7943
Grant/Contract Number:  
AC36-08GO28308; FOA-0001664
Resource Type:
Journal Article: Published Article
Journal Name:
ACS Central Science
Additional Journal Information:
Journal Volume: 4; Journal Issue: 9; Journal ID: ISSN 2374-7943
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; catalysis; molecular catalysts; turnover frequency; tunability

Citation Formats

Cuk, Tanja. Forwarding Molecular Design of Heterogeneous Catalysts. United States: N. p., 2018. Web. doi:10.1021/acscentsci.8b00492.
Cuk, Tanja. Forwarding Molecular Design of Heterogeneous Catalysts. United States. doi:10.1021/acscentsci.8b00492.
Cuk, Tanja. Wed . "Forwarding Molecular Design of Heterogeneous Catalysts". United States. doi:10.1021/acscentsci.8b00492.
@article{osti_1465884,
title = {Forwarding Molecular Design of Heterogeneous Catalysts},
author = {Cuk, Tanja},
abstractNote = {Catalysis research has long been divided between homogeneous and heterogeneous catalysis. In homogeneous catalysis, reactivity arises from molecular catalysts in a homogeneous solution, while in heterogeneous catalysis reactivity comes from sites on a surface. The main advantage of homogeneous catalysis is the ability to design reaction sites within molecularly defined catalysts in order to achieve high catalytic activity, measured in the number of product molecules evolved per site per second (turnover frequency, TOF). However, homogeneous catalysis suffers from degradation of the molecular catalysts during the reaction, leading to a low number of total product molecules evolved (turnover number, TON). In comparison, heterogeneous catalysis has incredibly high TONs - so much so that discrete TONs are often impractical to report. Here a new, promising area of research is intended to combine the benefits of both homogeneous and heterogeneous catalysis by tethering the molecular catalyst onto a solid surface to achieve tunability, high TOFs, and high TONs.},
doi = {10.1021/acscentsci.8b00492},
journal = {ACS Central Science},
issn = {2374-7943},
number = 9,
volume = 4,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1021/acscentsci.8b00492

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