dc.contributor.author
Markushyna, Yevheniia
dc.contributor.author
Lamagni, Paolo
dc.contributor.author
Teutloff, Christian
dc.contributor.author
Catalano, Jacopo
dc.contributor.author
Lock, Nina
dc.contributor.author
Zhang, Guigang
dc.contributor.author
Antonietti, Markus
dc.contributor.author
Savateev, Aleksandr
dc.date.accessioned
2019-12-02T13:56:11Z
dc.date.available
2019-12-02T13:56:11Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/26028
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-25787
dc.description.abstract
Tinted long-lived ionic carbon nitride radicals were recently introduced and applied in photocatalysis and energy storage. However, the reason for their higher activity in the photocatalytic reaction and optimal conditions for generating such radicals remain vague. Herein, we study the conditions for carbon nitride photocharging to achieve a higher charge density and validate a convenient method to quantify the number of electrons accumulated in carbon nitride semiconductors by quenching its radicals with methylviologen in the dark. In the presence of CO2, potassium poly(heptazine imide) (K-PHI) can be charged by up to 1000 μmol of electrons per gram of the material using benzylamine as an electron donor. Under the same conditions, mesoporous graphitic carbon nitride can accumulate only 50 μmol of electrons per gram. The products of the benzylamine oxidative coupling are imine and ammonia.
en
dc.format.extent
5 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
green radicals
en
dc.subject
potassium poly(heptazine imide)
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::541 Physikalische Chemie
dc.title
Green radicals of potassium poly(heptazine imide) using light and benzylamine
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1039/C9TA09500D
dcterms.bibliographicCitation.journaltitle
Journal of materials chemistry
dcterms.bibliographicCitation.number
43
dcterms.bibliographicCitation.pagestart
24771
dcterms.bibliographicCitation.pageend
24775
dcterms.bibliographicCitation.volume
7
dcterms.bibliographicCitation.url
https://doi.org/10.1039/C9TA09500D
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
2050-7488
dcterms.isPartOf.eissn
2050-7496
refubium.resourceType.provider
WoS-Alert