Tuning the Porosity and Photocatalytic Performance of Triazine-Based Graphdiyne Polymers through Polymorphism
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00501539" target="_blank" >RIV/61388955:_____/19:00501539 - isvavai.cz</a>
Alternative codes found
RIV/61388963:_____/19:00501539 RIV/00216208:11310/19:10388728
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201802034" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201802034</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cssc.201802034" target="_blank" >10.1002/cssc.201802034</a>
Alternative languages
Result language
angličtina
Original language name
Tuning the Porosity and Photocatalytic Performance of Triazine-Based Graphdiyne Polymers through Polymorphism
Original language description
Crystalline and amorphous organic materials are an emergent class of heterogeneous photocatalysts for the generation of hydrogen from water, but a direct correlation between their structures and the resulting properties has not been achieved so far. To make a meaningful comparison between structurally different, yet chemically similar porous polymers, two porous polymorphs of a triazine-based graphdiyne (TzG) framework are synthesized by a simple, one-pot homocoupling polymerization reaction using as catalysts Cu-I for TzG(Cu) and Pd-II/Cu-I for TzG(Pd/Cu). The polymers form through irreversible coupling reactions and give rise to a crystalline (TzG(Cu)) and an amorphous (TzG(Pd/Cu)) polymorph. Notably, the crystalline and amorphous polymorphs are narrow-gap semiconductors with permanent surface areas of 660 m(2) g(-1) and 392 m(2) g(-1), respectively. Hence, both polymers are ideal heterogeneous photocatalysts for water splitting with some of the highest hydrogen evolution rates reported to date (up to 972 mu mol h(-1) g(-1) with and 276 mu mol h(-1) g(-1) without Pt cocatalyst). Crystalline order is found to improve delocalization, whereas the amorphous polymorph requires a cocatalyst for efficient charge transfer. This will need to be considered in future rational design of polymer catalysts and organic electronics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemSusChem
ISSN
1864-5631
e-ISSN
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Volume of the periodical
12
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
6
Pages from-to
194-199
UT code for WoS article
000456279600014
EID of the result in the Scopus database
2-s2.0-85056811832