Fountaine, K. T. and Lewerenz, H. J. (2017) Efficiency Limits for Hydrogen and Formate Production via Fully-Integrated Photoelectrochemical Devices. ECS Transactions, 77 (4). pp. 15-23. ISSN 1938-6737. doi:10.1149/07704.0015ecst. https://resolver.caltech.edu/CaltechAUTHORS:20180914-100811455
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20180914-100811455
Abstract
Limiting efficiencies play a critical role in determining the viability of proposed technologies and, consequently, in motivating and guiding device development. Herein we present an analytic, unified framework for fully-integrated photoelectrochemical device performance and apply it to water-splitting and CO_2 reduction reactions for hydrogen and formate production, respectively. An analytic form for the current-voltage relationship of a photoelectrochemical device is used to calculate limiting efficiencies under specific ideal and realistic conditions for single, dual and triple junction photodiode units. Differences in realistic limiting efficiencies for hydrogen and formate production arise not only from disparate catalyst performance but also from design considerations for liquid vs. gas products and realistic operating pH. The results indicate that dual junction devices are sufficient for water-splitting devices, while triple junction devices are more ideal for CO_2 reduction devices with current high performance components.
Item Type: | Article | ||||||
---|---|---|---|---|---|---|---|
Related URLs: |
| ||||||
ORCID: |
| ||||||
Additional Information: | © 2017 ECS - The Electrochemical Society. We are grateful to Dr. C.X. Xiang for useful discussion regarding realistic CO_2 reduction device designs. This material is based, in part, upon work performed by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the U.S. Department of Energy under Award No. DE-SC0004993. | ||||||
Group: | JCAP | ||||||
Funders: |
| ||||||
Issue or Number: | 4 | ||||||
DOI: | 10.1149/07704.0015ecst | ||||||
Record Number: | CaltechAUTHORS:20180914-100811455 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180914-100811455 | ||||||
Official Citation: | Katherine T. Fountaine and Hans Joachim Lewerenz (Invited) Efficiency Limits for Hydrogen and Formate Production via Fully-Integrated Photoelectrochemical Devices ECS Trans. 2017 77(4): 15-23; doi:10.1149/07704.0015ecst | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 89639 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | George Porter | ||||||
Deposited On: | 14 Sep 2018 22:11 | ||||||
Last Modified: | 16 Nov 2021 00:36 |
Repository Staff Only: item control page