Exploring the “Goldilocks Zone” of Semiconducting Polymer Photocatalysts by Donor-Acceptor Interactions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F18%3A00495849" target="_blank" >RIV/61388963:_____/18:00495849 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/18:10383128

Výsledek na webu

<a href="http://dx.doi.org/10.1002/anie.201809702" target="_blank" >http://dx.doi.org/10.1002/anie.201809702</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/anie.201809702" target="_blank" >10.1002/anie.201809702</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exploring the “Goldilocks Zone” of Semiconducting Polymer Photocatalysts by Donor-Acceptor Interactions

Popis výsledku v původním jazyce

Water splitting using polymer photocatalysts is a key technology to a truly sustainable hydrogen-based energy economy. Synthetic chemists have intuitively tried to enhance photocatalytic activity by tuning the length of π-conjugated domains of their semiconducting polymers, but the increasing flexibility and hydrophobicity of ever-larger organic building blocks leads to adverse effects such as structural collapse and inaccessible catalytic sites. To reach the ideal optical band gap of about 2.3 eV, A library of eight sulfur and nitrogen containing porous polymers (SNPs) with similar geometries but with optical band gaps ranging from 2.07 to 2.60 eV was synthesized using Stille coupling. These polymers combine -conjugated electron-withdrawing triazine (C3N3) and electron donating, sulfur-containing moieties as covalently bonded donor-acceptor frameworks with permanent porosity. The remarkable optical properties of SNPs enable fluorescence on-off sensing of volatile organic compounds and illustrate intrinsic charge-transfer effects.

Název v anglickém jazyce

Exploring the “Goldilocks Zone” of Semiconducting Polymer Photocatalysts by Donor-Acceptor Interactions

Popis výsledku anglicky

Water splitting using polymer photocatalysts is a key technology to a truly sustainable hydrogen-based energy economy. Synthetic chemists have intuitively tried to enhance photocatalytic activity by tuning the length of π-conjugated domains of their semiconducting polymers, but the increasing flexibility and hydrophobicity of ever-larger organic building blocks leads to adverse effects such as structural collapse and inaccessible catalytic sites. To reach the ideal optical band gap of about 2.3 eV, A library of eight sulfur and nitrogen containing porous polymers (SNPs) with similar geometries but with optical band gaps ranging from 2.07 to 2.60 eV was synthesized using Stille coupling. These polymers combine -conjugated electron-withdrawing triazine (C3N3) and electron donating, sulfur-containing moieties as covalently bonded donor-acceptor frameworks with permanent porosity. The remarkable optical properties of SNPs enable fluorescence on-off sensing of volatile organic compounds and illustrate intrinsic charge-transfer effects.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Angewandte Chemie - International Edition

ISSN

1433-7851

e-ISSN

—

Svazek periodika

57

Číslo periodika v rámci svazku

43

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

14188-14192

Kód UT WoS článku

000447371500036

EID výsledku v databázi Scopus

2-s2.0-85053860423