Asset Details
Do you wish to reserve the book?
pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper
Do you wish to request the book?
pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper
2019
Overview
We present a microkinetic model for CO
(2)
reduction (CO
(2)
R) on Cu(211) towards C
2
products, based on energetics estimated from an explicit solvent model. We show that the differences in both Tafel slopes and pH dependence for C
1
vs C
2
activity arise from differences in their multi-step mechanisms. We find the depletion in C
2
products observed at high overpotential and high pH to arise from the 2
nd
order dependence of C-C coupling on CO coverage, which decreases due to competition from the C
1
pathway. We further demonstrate that CO
(2)
reduction at a fixed pH yield similar activities, due to the facile kinetics for CO
2
reduction to CO on Cu, which suggests C
2
products to be favored for CO
2
R under alkaline conditions. The mechanistic insights of this work elucidate how reaction conditions can lead to significant enhancements in selectivity and activity towards higher value C
2
products.
CO
2
conversion to reduced products provides a use for greenhouse gases, but reaction complexity stymies mechanistic studies. Here, authors present a microkinetic model for CO
2
and CO reduction on copper, based on ab initio simulations, to elucidate pH’s impact on competitive reaction pathways.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
