Understanding the Performance of NiO Photocathodes with Alkyl-Derivatized Cobalt Catalysts and a Push-Pull Dye

ACS Applied Materials & Interfaces
Kelly L MaternaLeif Hammarström

Abstract

Mesoporous NiO photocathodes containing the push-pull dye PB6 and alkyl-derivatized cobaloxime catalysts were prepared using surface amide couplings and analyzed for photocatalytic proton reduction catalysis. The length of the alkyl linker used to derivatize the cobalt catalysts was found to correlate to the photocurrent with the highest photocurrent observed using shorter alkyl linkers but the lowest one for samples without linker. The alkyl linkers were also helpful in slowing dye-NiO charge recombination. Photoelectrochemical measurements and femtosecond transient absorption spectroscopic measurements suggested electron transfer to the surface-immobilized catalysts occurred; however, H2 evolution was not observed. Based on UV-vis, X-ray fluorescence spectroscopy (XRF), and X-ray photoelectron spectroscopy (XPS) measurements, the cobalt catalyst appeared to be limiting the photocathode performance mainly via cobalt demetallation from the oxime ligand. This study highlights the need for a deeper understanding of the effect of catalyst molecular design on photocathode performance.

References

Jul 21, 2006·The Journal of Physical Chemistry. B·Ana MorandeiraLeif Hammarström
Dec 15, 2006·Journal of the American Chemical Society·Jessica E KroezeJames R Durrant
Nov 26, 2009·Accounts of Chemical Research·Jillian L DempseyHarry B Gray
Dec 2, 2009·Proceedings of the National Academy of Sciences of the United States of America·Pierre-André JacquesMarc Fontecave
Jan 8, 2011·Chemical Communications : Chem Comm·Fezile Lakadamyali, Erwin Reisner
Nov 17, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Gayatri NatuYiying Wu
Oct 20, 2012·Chemical Society Reviews·John R Swierk, Thomas E Mallouk
Jul 31, 2013·Journal of the American Chemical Society·Zhiqiang JiYiying Wu
Aug 28, 2013·Nano Letters·Kenneth HansonThomas J Meyer
Oct 25, 2014·Physical Chemistry Chemical Physics : PCCP·Ke FanLicheng Sun
Apr 29, 2015·Proceedings of the National Academy of Sciences of the United States of America·Leila AlibabaeiThomas J Meyer
May 6, 2015·Accounts of Chemical Research·Nicolas KaefferVincent Artero
Jul 2, 2015·Journal of the American Chemical Society·Fusheng LiLicheng Sun
Aug 12, 2015·The Journal of Physical Chemistry Letters·Luca D'AmarioLeif Hammarström
Oct 20, 2015·Physical Chemistry Chemical Physics : PCCP·Lei ZhangHaining Tian
Oct 28, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Kelly L MaternaGary W Brudvig
Oct 30, 2015·Chemical Reviews·Dennis L AshfordThomas J Meyer
Jan 7, 2016·Physical Chemistry Chemical Physics : PCCP·Christopher J WoodElizabeth A Gibson
Jan 9, 2016·Journal of the American Chemical Society·Kevin A ClickYiying Wu
Sep 7, 2016·Journal of the American Chemical Society·Nicolas KaefferVincent Artero
Sep 23, 2016·Journal of the American Chemical Society·M Kyle BrennamanThomas J Meyer
Apr 4, 2017·ACS Applied Materials & Interfaces·Luca D'AmarioHaining Tian
Jun 24, 2017·Chemical Society Reviews·Kelly L MaternaGary W Brudvig
Aug 23, 2017·Chemical Society Reviews·Elizabeth A Gibson
Dec 7, 2017·Physical Chemistry Chemical Physics : PCCP·Lei TianHaining Tian
Mar 29, 2018·Chemical Communications : Chem Comm·Lei TianHaining Tian
Apr 10, 2018·Chemical Science·Luca D'AmarioLeif Hammarström
Jun 12, 2018·Angewandte Chemie·Dong Heon NamErwin Reisner
Feb 5, 2019·Chemical Science·Nils PõldmeElizabeth A Gibson
May 7, 2019·Chemical Science·Soundarrajan ChandrasekaranVincent Artero
May 29, 2019·Journal of the American Chemical Society·Christopher D WindleVincent Artero

❮ Previous
Next ❯

Citations

Jul 30, 2021·Journal of Chemical Theory and Computation·Alekos SegalinaMariachiara Pastore
Sep 7, 2021·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Kaijian ZhuAnnemarie Huijser

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray

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.