Reactivity Determinants in Electrodeposited Cu Foams for Electrochemical CO2 Reduction

ChemSusChem
Katharina KlinganHolger Dau

Abstract

CO2 reduction is of significant interest for the production of nonfossil fuels. The reactivity of eight Cu foams with substantially different morphologies was comprehensively investigated by analysis of the product spectrum and in situ electrochemical spectroscopies (X-ray absorption near edge structure, extended X-ray absorption fine structure, X-ray photoelectron spectroscopy, and Raman spectroscopy). The approach provided new insight into the reactivity determinants: The morphology, stable Cu oxide phases, and *CO poisoning of the H2 formation reaction are not decisive; the electrochemically active surface area influences the reactivity trends; macroscopic diffusion limits the proton supply, resulting in pronounced alkalization at the CuCat surfaces (operando Raman spectroscopy). H2 and CH4 formation was suppressed by macroscopic buffer alkalization, whereas CO and C2 H4 formation still proceeded through a largely pH-independent mechanism. C2 H4 was formed from two CO precursor species, namely adsorbed *CO and dissolved CO present in the foam cavities.

References

Apr 18, 2012·Journal of the American Chemical Society·Christina W Li, Matthew W Kanan
Jun 8, 2012·Journal of the American Chemical Society·Klaas Jan P SchoutenMarc T M Koper
Dec 21, 2012·Accounts of Chemical Research·Beatriz Roldan Cuenya
Jun 5, 2013·Angewandte Chemie·Federico Calle-Vallejo, Marc T M Koper
Nov 1, 2013·Journal of the American Chemical Society·Charles C L McCroryThomas F Jaramillo
Apr 22, 2014·Journal of the American Chemical Society·Rulle ReskePeter Strasser
Aug 20, 2014·Journal of the American Chemical Society·Karthish ManthiramA Paul Alivisatos
Oct 10, 2014·Physical Chemistry Chemical Physics : PCCP·Dahee KimJaeyoung Lee
Apr 4, 2015·Journal of the American Chemical Society·Xiaofeng FengMatthew W Kanan
Jul 22, 2015·Journal of the American Chemical Society·Arnau Verdaguer-CasadevallIb Chorkendorff
Aug 13, 2015·The Journal of Physical Chemistry Letters·Joseph H MontoyaJens K Nørskov
Jan 2, 2016·The Journal of Physical Chemistry Letters·Ruud KortleverMarc T M Koper
Mar 22, 2016·Advanced Materials·Dong Dong ZhuShi Zhang Qiao
May 11, 2016·ACS Central Science·Xiaofeng FengMatthew W Kanan
Jul 1, 2016·Nature Communications·Hemma MistryBeatriz Roldan Cuenya
Sep 10, 2016·ACS Central Science·Anna WuttigYogesh Surendranath
Jan 11, 2017·The Journal of Physical Chemistry Letters·Ki Dong YangKi Tae Nam
Apr 30, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Hideshi OokaMarc T M Koper
Aug 9, 2017·Proceedings of the National Academy of Sciences of the United States of America·Qi XiaoVirgil Percec
Dec 22, 2017·Nanotechnology·David RacitiChao Wang
Feb 14, 2018·ACS Applied Materials & Interfaces·Lily MandalT Venkatesan

❮ Previous
Next ❯

Citations

Feb 3, 2019·The Journal of Chemical Physics·Shan JiangHolger Dau
Feb 25, 2021·Chemical Society Reviews·Genxiang WangLiming Dai
Jan 16, 2020·Chemical Science·Recep KasWilson A Smith
Feb 20, 2020·ACS Applied Materials & Interfaces·Minfang WuYuhan Sun
Jun 18, 2019·ACS Catalysis·Fabian ScholtenBeatriz Roldan Cuenya
Apr 2, 2019·ACS Applied Materials & Interfaces·Tintula KottakkatChristina Roth
Sep 29, 2020·Chemical Reviews·Janis Timoshenko, Beatriz Roldan Cuenya

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.