Journal article Open Access
Schwarz, Dana;
Acharjya, Amitava;
Ichangi, Arun;
Kochergin, Yaroslav;
Lyu, Pengbo;
Opanasenko, Maksym V.;
Tarábek, Jan;
Vacek Chocholoušová, Jana;
Vacek, Jaroslav;
Schmidt, Johannes;
Nachtigall, Petr;
Thomas, Arne;
Bojdys, Michael J.
<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd"> <identifier identifierType="URL">https://zenodo.org/record/1471618</identifier> <creators> <creator> <creatorName>Schwarz, Dana</creatorName> <givenName>Dana</givenName> <familyName>Schwarz</familyName> <affiliation></affiliation> </creator> <creator> <creatorName>Acharjya, Amitava</creatorName> <givenName>Amitava</givenName> <familyName>Acharjya</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-0998-171X</nameIdentifier> </creator> <creator> <creatorName>Ichangi, Arun</creatorName> <givenName>Arun</givenName> <familyName>Ichangi</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-3094-4331</nameIdentifier> </creator> <creator> <creatorName>Kochergin, Yaroslav</creatorName> <givenName>Yaroslav</givenName> <familyName>Kochergin</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-9060-6350</nameIdentifier> </creator> <creator> <creatorName>Lyu, Pengbo</creatorName> <givenName>Pengbo</givenName> <familyName>Lyu</familyName> </creator> <creator> <creatorName>Opanasenko, Maksym V.</creatorName> <givenName>Maksym V.</givenName> <familyName>Opanasenko</familyName> </creator> <creator> <creatorName>Tarábek, Jan</creatorName> <givenName>Jan</givenName> <familyName>Tarábek</familyName> </creator> <creator> <creatorName>Vacek Chocholoušová, Jana</creatorName> <givenName>Jana</givenName> <familyName>Vacek Chocholoušová</familyName> </creator> <creator> <creatorName>Vacek, Jaroslav</creatorName> <givenName>Jaroslav</givenName> <familyName>Vacek</familyName> </creator> <creator> <creatorName>Schmidt, Johannes</creatorName> <givenName>Johannes</givenName> <familyName>Schmidt</familyName> </creator> <creator> <creatorName>Nachtigall, Petr</creatorName> <givenName>Petr</givenName> <familyName>Nachtigall</familyName> </creator> <creator> <creatorName>Thomas, Arne</creatorName> <givenName>Arne</givenName> <familyName>Thomas</familyName> <affiliation>0000-0002-2130-4930</affiliation> </creator> <creator> <creatorName>Bojdys, Michael J.</creatorName> <givenName>Michael J.</givenName> <familyName>Bojdys</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-2592-4168</nameIdentifier> <affiliation>Humboldt-Universität zu Berlin</affiliation> </creator> </creators> <titles> <title>Tuning the porosity and photocatalytic performance of triazinebased graphdiyene polymers via polymorphism</title> </titles> <publisher>Zenodo</publisher> <publicationYear>2018</publicationYear> <subjects> <subject>graphdiyene</subject> <subject>photocatalysis</subject> <subject>covalent organic frameworks</subject> <subject>conjugated microporous polymers</subject> <subject>semiconductors</subject> </subjects> <dates> <date dateType="Issued">2018-10-18</date> </dates> <resourceType resourceTypeGeneral="Text">Journal article</resourceType> <alternateIdentifiers> <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/1471618</alternateIdentifier> </alternateIdentifiers> <relatedIdentifiers> <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1002/cssc.201802034</relatedIdentifier> </relatedIdentifiers> <rightsList> <rights rightsURI="https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode">Creative Commons Attribution Non Commercial No Derivatives 4.0 International</rights> <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights> </rightsList> <descriptions> <description descriptionType="Abstract"><p>Crystalline and amorphous organic materials are an<br> emergent class of heterogeneous photocatalysts for the generation of<br> hydrogen from water, but a direct correlation between their structures<br> and the resulting properties has not been achieved so far. To make a<br> meaningful comparison between structurally different, yet chemically<br> similar porous polymers, we present two porous polymorphs of a<br> triazine-based graphdiyene (TzG) framework from a simple, one-pot<br> reaction using Cu(I) for TzG<sub>Cu</sub> and Pd(II)/Cu(I) for TzG<sub>Pd/Cu</sub> catalyzed<br> homocoupling polymerization. The polymers form via irreversible<br> coupling reactions and give rise to a crystalline (TzG<sub>Cu</sub>) and an<br> amorphous (TzG<sub>Pd/Cu</sub>) polymorph. Notably, the crystalline and<br> amorphous polymorphs are narrow-gap semiconductors with<br> permanent surface areas of 660 m<sup>2</sup> g<sup>-1</sup> and 392 m<sup>2</sup> g<sup>-1</sup>, respectively.<br> Hence, both polymers are ideal heterogeneous photocatalysts for<br> water splitting with some of the highest hydrogen evolution rates<br> reported thus far up to 972 &mu;mol h<sup>-1</sup> g<sup>-1</sup> with and 276 &mu;mol h<sup>-1</sup> g<sup>-1</sup><br> without Pt co-catalyst. We conclude, that crystalline order improves<br> delocalisation, while the amorphous polymorph requires a co-catalyst<br> for efficient charge transfer; this will need to be considered in future<br> rational design of polymer catalysts and organic electronics.</p></description> </descriptions> <fundingReferences> <fundingReference> <funderName>European Commission</funderName> <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/501100000780</funderIdentifier> <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/678462/">678462</awardNumber> <awardTitle>Layered functional materials - beyond 'graphene'</awardTitle> </fundingReference> </fundingReferences> </resource>
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