CaltechAUTHORS
  A Caltech Library Service

Comparative Study on Electrochemical and Thermochemical Pathways for Carbonaceous Fuel Generation Using Sunlight and Air

Xu, Da and Sullivan, Ian and Xiang, Chengxiang and Lin, Meng (2022) Comparative Study on Electrochemical and Thermochemical Pathways for Carbonaceous Fuel Generation Using Sunlight and Air. ACS Sustainable Chemistry & Engineering, 10 (42). pp. 13945-13954. ISSN 2168-0485. doi:10.1021/acssuschemeng.2c03230. https://resolver.caltech.edu/CaltechAUTHORS:20221031-575730600.41

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:20221031-575730600.41

Abstract

A comparative study on the solar-to-fuel (STF) conversion efficiency of electrochemical and thermochemical approaches for methane (CH₄), methanol (MeOH), and ethanol (EtOH) generation using sunlight and air was performed. The system level STF conversion efficiency studied herein took into account of both the conversion processes and feedstock capture processes. In particular, the feedstock, CO₂ and H₂O, in this analysis were assumed to be captured from air. For thermochemical conversion, one and two-step approaches were considered including CH₄ generation from the Sabatier reaction, and two-step processes for methanol (MeOH) and ethanol (EtOH) generation from CO and H₂ coupled with the reverse water gas shift reaction (rWGS). State-of-the-art electrochemical and hybrid electrochemical-thermochemical processes for CH₄, MeOH and EtOH generation, and the corresponding system level STF conversion efficiency were then compared and contrasted to the thermochemical approaches. Target overpotentials and Faradaic efficiency (FE) for the electrochemical CO₂ reduction reactions was also presented to compete with thermochemical approaches at different operating scenarios.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acssuschemeng.2c03230DOIArticle
ORCID:
AuthorORCID
Sullivan, Ian0000-0003-0632-4607
Xiang, Chengxiang0000-0002-1698-6754
Lin, Meng0000-0001-7785-749X
Additional Information:This material is based on work performed by the Liquid Sunlight Alliance, which is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and Fuels from Sunlight Hub under Award Number DE-SC0021266. M.L. and D.X. acknowledge the support by the National Natural Science Foundation of China under Grant No. 52006097. The computation in this work is supported by Center for Computational Science and Engineering at Southern University of Science and Technology.
Group:Liquid Sunlight Alliance
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China52006097
Department of Energy (DOE)DE-SC0021266
Issue or Number:42
DOI:10.1021/acssuschemeng.2c03230
Record Number:CaltechAUTHORS:20221031-575730600.41
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20221031-575730600.41
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:117673
Collection:CaltechAUTHORS
Deposited By: Research Services Depository
Deposited On:08 Nov 2022 17:59
Last Modified:08 Nov 2022 17:59

Repository Staff Only: item control page