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:
-
- Department of Chemistry and Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, Colorado 80303, United States, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (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:
- FOA-0001664; AC36-08GO28308
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- ACS Central Science
- Additional Journal Information:
- Journal Name: ACS Central Science Journal Volume: 4 Journal Issue: 9; Journal ID: ISSN 2374-7943
- Publisher:
- American Chemical Society
- 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. https://doi.org/10.1021/acscentsci.8b00492
Cuk, Tanja. 2018.
"Forwarding Molecular Design of Heterogeneous Catalysts". United States. https://doi.org/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},
url = {https://www.osti.gov/biblio/1465884},
journal = {ACS Central Science},
issn = {2374-7943},
number = 9,
volume = 4,
place = {United States},
year = {Wed Aug 22 00:00:00 EDT 2018},
month = {Wed Aug 22 00:00:00 EDT 2018}
}
Web of Science